ホーム 研究室員募集・案内 リンク 連絡先 English

■ 論文・発表

・学会発表(国際) Meeting
2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, -1999



ホーム論文・発表>国際学会発表アーカイブ

学会発表(国際学会) Presentations

2013

☆AGU Fall Meeting (San Francisco, 2013.12)★

Yokoyama, Y., T.M. Esat, W.G. Thompson, A.L. Thomas, J. Webster, Y. Miyairi, H. Matsuzaki, J. Okuno, S. Fallon, J.-C. Braga, M. Humbret, Y. Iryu, D. Potts, C. Cotterill, and IODP Exp 325 Scientists, Sea level record obtained from submerged the Great Barrier Reef, 2013 AGU Fall Meeting (San Francisco, USA 2013.12.13 Fri) Oral.

A. Nakamura, Y. Yokoyama, Y. Sekine, K. Goto, G. Komatsu, P.S. Kumar, H. Matsuzaki, T. Matsui, Formation age and geomorphologic history of the Lonar impact crater deduced from in- situ cosmogenic 10Be and 26Al, 2013 AGU Fall Meeting (San Francisco, USA 2013.12.11 Wed) Oral.

A.C. Mix, C. Maerz, E. McClymont,A. Nakamura, G. Berbel, L.L. Worthington, M.H. Davies, S.P.S. Gulick, J.M. Jaeger, Porewater salinity and δ18O reveal a kilometer-deep subsurface pathway for glacial meltwater into the Gulf of Alaska, 2013 AGU Fall Meeting (San Francisco, USA 2013.12.10 Tue) Poster.

L.B. Childress, K.D. Ridgway, N.E. Blair, H. Bahlburg, G. Berbel, E.A. Cowan, M. Forwick, S.P.S. Gulick, J.M. Jaeger, C. Maerz, E. McClymont, C.M. Moy, J. Müller, A. Nakamura, F. Ribeiro, Potential links between onshore tectonics and terrestrial organic carbon delivery to distal submarine fan environments: IODP Site U1417, Surveyor Fan, Gulf of Alaska, 2013 AGU Fall Meeting (San Francisco, USA 2013.12.10 Tue) Poster.

Obrochta, S.P., T.J. Crowley, Y. Yokoyama, Reduced millennial variability during glacial Stage 6 in the central North Atlantic, 2013 AGU Fall Meeting (San Francisco, USA 2013.12.9 Mon) Oral.

4th Symposium on Polar Science (Japan, 2013.11)★

Yokoyama Y., S. Takahashi, Y. Miyairi, T. Aze, R. Tsunekawa, S.P. Obrochta, K. Horiuchi, H.Motoyama, Reconstruction of the Blake geomagnetic excursion using the cosmogenic nuclides in Dome Fuji ice core, 2013 The 4th Symposium on Polar Science (Tachikawa, Japan, 2013.11.13 Wed) Oral.

Tsunekawa, R., Y. Yokoyama, S. Takahashi, Y. Miyairi, T. Aze, K. Horiuchi, N. Sasaki, H. Matsuzaki, H.Motoyama, Reconstruction of the Post-Blake excursion using the cosmogenic radio nuclide in Dome Fuji ice core, 2013 The 4th Symposium on Polar Science (Tachikawa, Japan, 2013.11.13 Wed) Oral.

ICP 11 (Spain, 2013.9)★

Elliot, M., R. Driscoll, K. Welsh, Y. Yokoyama, W. Müller, Reconstructions of ENSO variability during the last Glacial and Holocene using Giant Clams, 11th International Conference on Paleoceanography (ICP) (Sitges, Spain, 2013.9.1-6).

Felis, T., H. McGregor, M. Inoue, B. Linsley, A. Suzuki, M. Tiwari, A. Tudhope, M. Gagan, T. Esat, A. Thomas, W. Thompson, Y. Yokoyama, J. Webster, Temperature gradient along the Great Barrier Reef during the last deglaciation - IODP Expedition 325, 11th International Conference on Paleoceanography (ICP) (Sitges, Spain, 2013.9.1-6).

Ikehara, M., K. Katsuki, M. Yamane, Y. Yokoyama, T. Matsuzaki, Millennial-scale deposition events of ice-rafted debris (IRD) in the glacial South Indian Ocean, 11th International Conference on Paleoceanography (ICP) (Sitges, Spain, 2013.9.1-6).

Kawakubo, Y., Y. Yokoyama, A. Suzuki, T. Okai, C. Alibert, L. Kinsley, S. Eggins, Laser Ablation ICP-MS for paleoceanographic reconstructions from temperate coral in Kikai Island, Southern Japan, 11th International Conference on Paleoceanography (ICP) (Sitges, Spain, 2013.9.1-6).

Shiau, L.J., S.C. Clemens, M.T. Chen, M. Yamamoto, Y. Yokoyama, SST phases in the open-ocean and margins of the tropical Pacific; implication on tropical climate dynamics, 11th International Conference on Paleoceanography (ICP) (Sitges, Spain, 2013.9.1-6).

Kubota, K., Y. Yokoyama, T. Ishikawa, M. Inoue, A. Suzuki, Deglacial Paleoceanography in equatorial Pacific reconstructed from boron isotopes on Tahitian fossil corals (IODP 310), 11th International Conference on Paleoceanography (ICP) (Sitges, Spain, 2013.9.1-6).

Yokoyama, Y., J.R. Riethdorf, B. Thibodeau, M. Ikehara, D. Nürnberg, L. Max, R. Tiedemann, Surface nitrate utilization in the Bering Sea since 180 ka BP: Insight from sedimentary nitrogen isotopes, 11th International Conference on Paleoceanography (ICP) (Sitges, Spain, 2013.9.1-6).

Lin, D.C., M.T. Cheng, M. Yamamoto, Y. Yokoyama, Precisely dated AMS 14C marine cores (MD972146, MD972148) reveal the complexity of millennial-scale Asian monsoon variability, 11th International Conference on Paleoceanography (ICP) (Sitges, Spain, 2013.9.1-6).

DACA-13 (Switzerland, 2013.7)★

Obrochta, S., Y. Yokoyama and T. Crowley, Glacial North Atlantic variability during the past 300,000 years, Davos Atmosphere and Cryosphere Assembly (DACA-13) (Davos, Switzerland, 2013.7.11).

Yokoyama, Y., Sea level and climate for the last 150 k yrs, Davos Atmosphere and Cryosphere Assembly (DACA-13) (Davos, Switzerland, 2013.7.12) Invited/Keynote.

AOGS 10th Annual Meeting (Australia, 2013.6)★

Sakashita W., Y. Yamaguchi, H. Miyahara, Y. Aono, M. Morales, Y. Yokoyama, Spatial Distribution of the Climate Response to Cosmic Ray Events during the Maunder Minimum, AOGS (Asia Oceania Geosciences Society) 10th Annual Meeting (Brisbane, Australia, 2013.6.28 Fri) Invited.

Ishiwa, T., Y. Yokoyama, K. Uehara, Y. Miyairi, S. Obrochta, A. Suzuki, M. Ikehara, K. Kimoto, K. Ikehara, J. Bourget, H. Matsuzaki, Re-visiting the Bonaparte Gulf : reconstructing paleoenvironmental changes during the time into and out of the Last Glacial Maximum, AOGS (Asia Oceania Geosciences Society) 10th Annual Meeting (Brisbane, Australia, 2013.6.25 Tue) Poster.

the 4th PAGES Open Science Meeting (India, 2013.2)★

[program]

Yokoyama, Y., Y. Miyairi, J. Okuno, K. Goto, T. Haraguchi, H. Matsuzaki, Holocene sea-level change in Sri Lanka and melting history of Antarctic ice sheet, the 4th PAGES Open Science Meeting(Goa, India, 2013.2)Poster.

2012

AGU Fall Meeting 2012 (San Francisco, USA, 2012.12)★

[program]

Yokoyama, Y., J. Okuno, Y. Miyairi, S. Obrochta, N. Demboya, Y. Makino, H. Kawahata, Holocene sea-level change and Antarctic melting history derived from geological observations and geophysical modeling along the Shimokita Peninsula, northern Japan, American Geophysical Union, Fall Meeting (San Francisco, USA, 2012.12.5 Wed) Poster.

Seki, A., Y. Yokoyama, A. Suzuki, Y. Kawakubo, T. Okai, Y. Miyairi, H. Matsuzaki, H. Kan, Mid to late Holocene sea-surface temperature reconstruction using fossil corals from Kume Island, Ryukyu, Japan, American Geophysical Union, Fall Meeting (San Francisco, USA, 2012.12.4 Tue) Poster.

Kubota, K., Y. Yokoyama, T. Ishikawa, M. INoue, A. Suzuki Last deglacial paleoceanography in equatorial Pacific reconstructed from boron isotopes on Tahitian fossil corals obtained from IODP Exp 310, American Geophysical Union, Fall Meeting (San Francisco, USA, 2012.12.7 Fri) Poster.

Nakamura, A., Y. Yokoyama, Y. Miyairi, K. Shiroya, H. Matsuzaki, A. Suzuki Quantitative determination of erosion rates in humid region using depth profiles of in situ-produced Be-10 and Al-26, American Geophysical Union, Fall Meeting (San Francisco, USA, 2012.12.7 Fri) Poster.

☆MALT progress symposium (Tokyo, 2012.12)★

Nakamura, A., Y. Yokoyama, Y. Miyairi, K. Shiroya, H. Matsuzaki, A. Suzuki, Quantitative determination of erosion rates in humid region using depth profiles of in situ-produced Be-10 and Al-26, H24 MALT progress symposium(Tokyo, Japan, 2012.12)Oral.

13th JAFoS Symposium (USA, 2012.11)★

[program]

Kubota, K., Y. Yokoyama, T. Ishikawa, M. Inoue, A. Suzuki, Paleo-pH reconstruction using Boron isotope composition of reef-building coral, Thirteenth Japanese-American Frontiers of Science Symposium(Irvine, California, USA, 2012.11.30-12.2)Poster.

☆A research workshop (UK, 2012.11)★

T. Ishiwa, Y. Yokoyama, Y. Miyairi, Obrochta Stephen, A. Suzuki, M. Ikehara, K. Ikehara, K. Kimoto, Julien. Bourget, H. Matsuzaki, Paleotides and sea level on the north Australia shelf, A research workshop funded by Fujitsu Laboratories of Europe via the Ministry of Economy, Trade and Industry, Japan(The Royal Society, London, 2012.11.27 Thu)Oral.

☆International Symposium on Paleoceanography in the Southern Ocean and NW Pacific (Kochi, Japan, 2012.11)★

Yamane, M., Y. Okazaki, A. Ijiri, Y. Yokoyama, T. Sakai, Plio-Pleistocene biogenic silica oxygen isotopes record from IODP Exp.318 U1361A core, International Symposium on Paleoceanography in the Southern Ocean and NW Pacific: Perspective from Earth Drilling Sciences (Kochi, 2012.11.20 Tue) Oral.

3rd APLED (Okayama, Japan, 2012.11)★

[program]

Yokoyama, Y., Quaternary Geochronology reveals close relations between climate and sea-level, 3rd Asia Pacific Conference on Luminescence and Electron Spin Resonance dating, (Okayama, Japan, 2012.11.18) Keynote.

☆RNMH 2012 (Tokyo, Japan, 2012.11)★

Obrochta, S.P., Y. Yokoyama, H. Kawahata, Reconstructing Plant Functional Types in the Levant, 2012 International Conference on Replacement of Neanderthals by Modern Humans: Testing Evolutionary Models of Learning (RNMH), (Tokyo, Japan, 2012.9.15-21)

19th International Mass Spectrometry Conference (Kyoto, Japan, 2012.9)★

[program]

Yokoyama, Y., Y. Miyairi, H. Suga, H. Matsuzaki, N. Ohkouchi, Small scale radiocarbon dating and its applications to understand Antarctic Ice Sheet, 19th International Mass Spectrometry Conference, (Kyoto, Japan, 2012.11.18-24) Oral.

Horiuchi, K., S. Suguchi, K. Suda, T. Uchida, T. Aze, Y. Yokoyama, Y. Muramatsu, H. Matsuzaki, H. Motoyama, Beryllium 10 analysis for the Dome Fuji ice cores and cosmic-ray stratigraphy, 19th International Mass Spectrometry Conference, (Kyoto, Japan, 2012.11.18-24) Oral.

Shiroya, K., J. Itoh, Y. Yokoyama, H. Matsuzaki, Various erosion rates of watershed soil surfaces of mountain ridges in Tohoku District, Japan using in-situ cosmogenic nuclides depth profile, 19th International Mass Spectrometry Conference, (Kyoto, Japan, 2012.11.18-24) Poster

☆2012 ASLO Aquatic Science Meeting (Japan, 2012.7)★

Yamaguchi, Y. T., Y. Takano, Y. Chikaraishi, N. O. Ogawa, H. Suga, Y. Yokoyama, N. Ohkouchi, Constraints on biogeochemical dynamics of organic matter in marine sediments from nitrogen isotope analysis of amino acids, 2012 ASLO Aquatic Science Meeting (Shiga, Japan, 2012.7.11 Wed) Oral.

Not, C. , B. Thibodeau, Y. Yokoyama, Y. Kawakubo M. Hikami, A. Suzuki, M. Miyairi, H. Kawahata, Y. Nojiri, , Variation of trace element ratio in benthic foraminifera in respond to ocean acidification, ASLO Meeting (Lake Biwa, Japan, 2012.7) Poster.

The 12th International Coral Reef Symposium (Australia, 2012.7)★

[program]

Yokoyama, Y., Y. Miyairi, J. Okuno, S. Fallon, J. C. Braga, D. Potts, J. Webster, T. Esat, A. Thomas, W. Thompson, Sea-level changes since the Last Glacial Maximum: IODP new results from IODP Expedition 325, The 12th International Coral Reef Symposium (Queensland, Australia, 2012.7.9-13 Wed) Oral.

☆2012 Gold Schmidt (Canada, 2012.6)★

Not, C. K. Brown, B. Ghaleb, C. Hillaire-Marcel, V Conservative behavior of Uranium vs Salinity in Arctic Sea Ice and Brine, Goldschmidt Conference (Montreal, Canada, 2012.6) Poster.

☆2nd UH Mānoa-AORI Joint Symposium (USA, 2012.6)★

[program]

Kubota, K., Y. Yokoyama, T. Ishikawa, M. Inoue, A. Suzuki,, Paleo-pH reconstruction using boron isotope composition of reef building coral, 2nd UH Mānoa-AORI Joint Symposium on Ocean, Coastal, and Atmospheric Sciences (Hawaii, USA, 2012.6.13-15) Poster.

Obrochta, S.P.Yokoyama, Y., Crowley, T.J., Glacial Stage 6 North Atlantic Conditions Indicate an Anomalously Stable Laurentide Ice Sheet, 2nd UH Mānoa-AORI Joint Symposium on Ocean, Coastal, and Atmospheric Sciences (Hawaii, USA, 2012.6.13-15) Oral.

Seki, A., Y. Yokoyama, A. Suzuki, Y. Kawakubo, T. Okai, Y. Miyairi, H. Matsuzaki, H. Kan, East China Sea Mid-Holocene sea surface temperature reconstructed from Sr/Ca measurement for fossil corals, 2nd UH Mānoa-AORI Joint Symposium on Ocean, Coastal, and Atmospheric Sciences (Hawaii, USA, 2012.6.13-15) Poster.

Yokoyama, Y., Sea Level and Paleoclimate for the Last 140,000 Years, 2nd UH Mānoa-AORI Joint Symposium on Ocean, Coastal, and Atmospheric Sciences (Hawaii, USA, 2012.6.13-15) Oral.

Nakamura, A., Y. Yokoyama,Variations in the Indian Monsoon inferred from the geochemistry of lake sediments, 2nd UH Mānoa-AORI Joint Symposium on Ocean, Coastal, and Atmospheric Sciences (Hawaii, USA, 2012.6.13-15) Poster.

☆2012 Ocean Science Meeting (USA, 2012.2)★

Yamaguchi, Y. T., Y. Takano, Y. Chikaraishi, N. O. Ogawa, H. Imachi, Y. Yokoyama, N. Ohkouchi, Nitrogen isotopic signature of amino acids during microbial processes, 2012 Ocean Science Meeting (Salt Lake City, USA, 2012.2.23 Thu) Poster.

☆The 2nd Nagoya Workshop on the relationship between Solar Activity and Climate Changes (Japan, 2012.1)★

Yamaguchi, Y. T., Y. Yokoyama, H. Miyahara, K. Sho and T. Nakatsuka, Synchronized Northern Hemisphere Climate Change and Solar Magnetic Cycles during the Maunder Minimum, The 2nd Nagoya Workshop on the Relationship between Solar Activity and Climate Changes (Nagoya Univ, Nagoya, Japan, 2012.1.17 Tue) Oral.

2011

☆AGU Fall Meeting 2011 (San Francisco, USA, 2011.12)★


Nakamura, A., Y. Yokoyama, H. Maemoku, H. Yagi, M. Okamura, H. Matsuoka, N. Miyake, T. Osada, H. Teramura, T. Yamada, D. P. Adhikari, V. Dangol, Y. Miyairi, S.P. Obrochta, H. Matsuzaki and M.Ikehara, Mid-Late Holocene Asian monsoon variations recorded in the Lake Rara sediment, western Nepal, American Geophysical Union, Fall Meeting (San Francisco, USA, 2011.12) Poster.

Kawakubo, Y., Y. Yokoyama, A. Suzuki, C. Alibert, L. Kinsley and S. M. Eggins, Seasonally resolved sea surface temperature variability over the past 435 years in the northwestern Pacific recorded in Porites coral in Kikai Island, Southern Japan, American Geophysical Union, Fall Meeting (San Francisco, USA, 2011.12.9 Fri) Poster.

Sakashita, W., Y. Yokoyama, H. Miyahara, H. Yonenobu, M. Ohyama, Y. Hoshino, T. Nakatsuka, Causal Link between Solar Variability and Climate Anomalies in East Asia during the Maunder Minimum, American Geophysical Union, Fall Meeting (San Francisco, USA, 2011.12) Poster.

Maccali, J., Hillaire-Marcel, C., Not, C., Poirier, A., Canadian radiogenic isotope signature of Younger Dryas age sediments from the Central Arctic and Fram Strait Areas, AGU Fall Meeting (San-Francisco, USA, 2011.12) Poster.

Yokoyama, Y., T. Yamazaki, Y. Miyairi, H. Suga, Y. Chikaraishi, J.B. Anderson, J.R. Southon, and N. Ohkouchi, Rapid retreat of Ross Sea Ice Shelf during the last deglaciation evidenced from coupled measurements of compound specific radiocarbon dating and cosmogenic radionuclide in marine sediments, American Geophysical Union, Fall Meeting (San Francisco, USA, 2011.12.7 Wed) Oral.

☆The 4th East Asia AMS Symposium (Japan, 2011.12)★


Yamane, M., Y. Yokoyama, H. Miura, H. Maemoku, S. Iwasaki and H. Matsuzaki, The last deglacial history of Lützow-Holm Bay, East Antarctica, The 4th East Asia AMS Symposium (University of Tokyo, Tokyo, Japan, 2011.12.17 Sat) Poster.

Sakashita, W., Y. Yokoyama, H. Miyahara, H. Yonenobu, M. Ohyama, Y. Hoshino, T. Nakatsuka, Causal Relation between Solar Variability and East Asian Climate Anomalies during the Maunder Minimum, The 4th East Asia AMS Symposium (University of Tokyo, Tokyo, Japan, 2011.12.17 Sat) Poster.

Seki, A., Y. Yokoyama, A. Suzuki, T. Okai, Y. Miyairi, H. Matsuzaki, H. Kan, East China Sea Mid-Holocene sea surface temperature reconstructed from coupled radiocarbon and Sr/Ca measurements for corals obtained from Ryukyu islands, Japan, The 4th East Asia AMS Symposium (University of Tokyo, Tokyo, Japan, 2011.12.17 Sat) Oral.

Kawakubo, Y., Y. Yokoyama, A Suzuki., M. Koizumi., M. Inoue., H. Matsuzaki and H. Kawahata. Reconstruction of the paleoceanography during mid to late Holocene recorded in fossil corals in Kikai Island, The 4th East Asia AMS Symposium (Tokyo, Japan, 2011.12.17 Sat) Poster.

Not, C., Hillaire-Marcel, C., Sedimentary history of the central Arctic since Marine Isotopic Stage 3: Examples from the Mendeleev and Lomonosov Ridges, 4th East-Asian AMS Meeting (University of Tokyo, Tokyo, Japan, 2011.12.17 Sat) Poster.

Nakamura, A., Y. Yokoyama, H. Maemoku, H. Yagi, M. Okamura, H. Matsuoka, N. Miyake, T. Osada, H. Teramura, T. Yamada, D. P. Adhikari, V. Dangol, Y. Miyairi, S.P. Obrochta, H. Matsuzaki and M. Ikehara, Mid-Late Holocene Asian monsoon variations recorded in the Lake Rara sediment, western Nepal, The 4th East Asia AMS Symposium (Tokyo, Japan 2011.12) Oral.

Kubota, K., Y. Yokoyama, S. Sakai, T. Toyohuku, H. Maemoku, H. Matsuzaki, T. Osada, Mid-Holocene climate reconstruction using oxygen isotopic composition of modern and fossil catfish otolith (Ariopsis spp.) in North West India, 4th East Asia AMS symposium (University of Tokyo, Tokyo, Japan, 2011.12.15-18 Thu-Sun) Poster.

Shiroya, K., Y. Yokoyama, H. Matsuzaki, A. Nakamura, Various erosion rates of weathered granitic soil surfaces in Abukuma, eastern Japan using in-situ terrestrial cosmogenic nuclides depth profile, The 4th East Asia AMS Symposium (Tokyo, Japan 2011.12) Poster.

Yokoyama, Y., S. Takahashi, T. Aze, K. Horiuchi, Y. Miyairi, H. Matsuzaki and H. Motoyama, Blake geomagnetic excursion recorded as 10Be and 26Al flux anomaly in the Dome Fuji ice core, The 4th East Asia AMS Symposium (Tokyo, Japan 2011.12.17) Invited.

☆Lona Crator workshop (India, 2011.12)★

Y. Yokoyama, Geochemical fingerprints tracing fingerprints of Asian monsoon and geomagnetic excursion, Lona Crator workshop (NGRI, Hyderaberd, India, 2011.12.14) Oral.

☆The 6th RHIN International Symposium (Japan, 2011.10)★

Y. Yokoyama, Paleoclimate During the Last 20,000 Years in Asia-Pacific Region, The 6th RHIN International Symposium “Beyond Collapse: Transformation of human-environmental relationships, past, present and future” (RIHN, Kyoto, Japan, 2011.10.27) Oral.

☆GSA 2011 Annual Meeting (USA, 2011.10)★

Shiroya, K., Y. Yokoyama, H. Matsuzaki, A. Nakamura, Various Erosion Rates of weathered granitic soil surfaces in Abukuma, eastern Japan using in-situ terrestrial cosmogenic nuclide depth profile, GSA 2011 Annual Meeting (Minnesota, USA, 2011.10) Poster.

Hillaire-Marcel, C., Maccali, J., Not, C., Poirier, A., Canadian radiogenic isotope signature of Younger Dryas age ice-rafted sediments in sedimentary sequences from Lomonosov Ridge and Fram Strait, The Geological Society of America Annual Meeting (Minneapolis, USA, 2011.10) Oral.

☆25th International Meeting on Organic Geochemistry (Switzerland, 2011.9)★

Yamaguchi, Y. T., Y. Takano, Y. Chikaraishi, N. O. Ogawa, H. Imachi, H. Suga, Y. Yokoyama and N. Ohkouchi, Nitrogen isotopic signatures of amino acids in microbes: culture experiments and applications to marine sediments, 25th International Meeting on Organic Geochemistry (Casino Kursaal, Interlarken, Switzerland, 2011.9.20 Tue) Oral.

☆1st International Workshop on Small Scale Radiocarbon analysis (Switzerland, 2011.9)★

Yokoyama, Y., Small size samples radiocarbon dating at the University of Tokyo, 1st International Workshop on Small Scale Radiocarbon analysis (ETH, Zurich, Switzerland, 2011.9.13-16) Invited.

☆AOGS 8th Annual Meeting (Taiwan, 2011.8)★

Yokoyama, Y., A. Suzuki, F. Siringan, Y. Maeda, A. Abe-Ouchi, R. Ohgaito, H. Kawahata and H. Matsuzaki, Mid-Holocene Palaeoceanography of the South China Sea Using Coupled Fossil-Modern Coral and Atmosphere-Ocean GCM Model, AOGS (Asia Oceania Geosciences Society) 8th Annual Meeting (Taipei International Convention Center, Taipei, Taiwan, 2011.8.11 Thu) Invited.

Sakashita, W., Y. Yokoyama, H. Miyahara, H. Yonenobu and T. Nakatsuka, The Causal Link between Solar Variability and Asian Monsoon Intensity during the Maunder Minimum, AOGS (Asia Oceania Geosciences Society) 8th Annual Meeting (Taipei International Convention Center, Taipei, Taiwan, 2011.8.11 Thu) Oral.

Miyahara, H., H. Peng, Y. Yokoyama, Y. Takahashi, M. Sato, K. Munakata and B. Laken, Influence of the 27-day Solar Rotational Period on Tropical Convective Cloud Activity, AOGS (Asia Oceania Geosciences Society) 8th Annual Meeting (Taipei International Convention Center, Taipei, Taiwan, 2011.8.11 Thu) Invited.

☆International Symposium on Environmental Change and the Indus Civilization (Kyoto, Japan 2011.8)★

Nakamura, A., Y. Yokoyama, H. Maemoku, H. Yagi, M. Okamura, H. Matsuoka, N. Miyake, T. Osada, H. Teramura, T. Yamada, D. P. Adhikari, V. Dangol and H. Matsuzaki, Variability of the Asian monsoon as a potential candidate for decline of Indus civilization, International Symposium on Environmental Change and the Indus Civilization (Kyoto, Japan 2011.8) Oral.

Kubota, K., Y. Yokoyama, S. Sakai, H. Maemoku, A. Prasad, T. Osada, Mid Holocene climate reconstruction using oxygen isotopic composition of modern and fossil otolith (Ariopsis spp.) in North West India, International symposium ‘Environmental Change and Indus Civilization’ (Kyoto, Japan, 2011.8.8 Mon) Oral.

☆INQUA XVIII Congress (Switzerland, 2011.7)★

Kawakubo, Y., Y. Yokoyama, A. Suzuki, C. Alibert and S. Eggins, A 432-year-long paleoceanographic record in Porites coral in Kikai Island, Southern Japan, INQUA (International Union for Quaternary Research) XVIII Congress (Exhibition and Congress Centre BERNEXPO, Bern, Switzerland, 2011.7.27 Wed) Oral.

Maemoku, H., T. Miyauchi, J. Okuno, A. Nakamura, K. Kubota, Y. Yokoyama, N. Miyake, Y. Shitaoka, T. Nagatomo, H. Matsuoka, M. Okamura, H. Yagi and T. Osada, Reappraisal for Natural Impact on Decline and Fall of the Indus Civilization, INQUA (International Union for Quaternary Research) XVIII Congress (Exhibition and Congress Centre BERNEXPO, Bern, Switzerland, 2011.7.25 Mon) Poster.

Yokoyama, Y., H. Suga, T. Naruse, A. Abe-Ouchi and N. Ohkouchi, Rapid transmission of climate signals from the North Atlantic to the far Eastern Eurasian continent during the Last Deglacial period, INQUA (International Union for Quaternary Research) XVIII Congress (Exhibition and Congress Centre BERNEXPO, Bern, Switzerland, 2011.7.25 Mon) Poster.

Yokoyama, Y., J. Webster, C. Cotterill and the IODP Exp 325 Scientists, Climate and Sea-level changes since the last glacial maximum: Preliminary results from IODP Expedition 325 the Great Barrier Reef Environmental Change, INQUA (International Union for Quaternary Research) XVIII Congress (Exhibition and Congress Centre BERNEXPO, Bern, Switzerland, 2011.7.23 Sat) Invited.

Yamane, M., Y. Okazaki, A. Ijiri, M. Ikehara and Y. Yokoyama, A Holocene diatom oxygen isotopes record from the Indian sector of the Southern Ocean, INQUA (International Union for Quaternary Research) XVIII Congress (Exhibition and Congress Centre BERNEXPO, Bern, Switzerland, 2011.7.22 Fri) Oral.

☆11th International Symposium on Antarctic Earth Sciences Civilization (Scotland, 2011.7)★

Yamane, M., Y. Yokoyama, H. Miura, H. Maemoku, S. Iwasaki and H. Matsuzaki, The last deglacial history of Lützow-Holm Bay, East Antarctica, 11th International Symposium on Antarctic Earth Sciences (John Mclntyre Conference Centre, Edinburgh, Scotland, 2011.7.14 Thu) Poster.

Yamane, M., Y. Okazaki, A. Ijiri, M. Ikehara and Y. Yokoyama, A Holocene diatom oxygen isotopes record from the Indian Sector of the Southern Ocean, 11th International Symposium on Antarctic Earth Sciences (John Mclntyre Conference Centre, Edinburgh, Scotland, 2011.7.12 Tue) Oral.

Yamane, M., Y. Yokoyama and N. Ohkouchi, Establishment of accurate age model of U1357A core using compound-specific radiocarbon dating: preliminary result, IODP Exp. 318 2nd Post-cruise meeting (Grant Institute, Edinburgh, Scotland, 2011.7.8 Fri) Poster.

☆The Arctic Paleoclimate and its extrêmes meeting (Norway, 2011.6)★

Hillaire-Marcel, C., Not, C., Maccali, J., Tarasov, L., The AMOC slow down during the Younger Dryas: Enhanced freshwater supplies from the northwestern LIS and/or enhanced sea ice export from the Arctic, The Arctic Paleoclimate and its extrêmes meeting (Svalbard, Norway, 2011.6) Oral.

☆International Workshop on Antarctic Cryosphere Evolution Project (AnCEP) (Japan, 2011.4)★

Yokoyama, Y., Far-field sea-level revealing the Holocene melting history of Antarctic Ice Sheet, International Workshop on Antarctic Cryosphere Evolution Project (AnCEP) (Kochi Core Center, Kochi, Japan, 2011.4.22 Fri) Invited.

Yamane, M., Y. Okazaki, A. Ijiri, M. Ikehara and Y. Yokoyama, Diatom oxygen isotopes record of COR-1PC, and radiocarbon dating of LHB-3PC, International Workshop on Antarctic Cryosphere Evolution Project (AnCEP) (Kochi Core Center, Kochi, Japan, 2011.4.21 Thu) Oral.

☆IMAGES Workshop (Taiwan, 2011.4)★

Yokoyama, Y., A. Suzuki, F. Siringan, Y. Maeda, A. Abe-Ouchi, R. Ohgaito, H. Kawahata and H. Matsuzaki, Mid-Holocene palaeoceanography of the South China Sea using coupled
fossil-modern coral and atmosphere-ocean GCM model. 2nd Western Pacific Paleoceanography IMAGES Workshop: Land-Sea Linkage (National Taiwan Ocean University, Keelung, Taiwan, 2011.4.18-21) Invited.

☆European Geosciences Union 2011 (Austria, 2011.4)★

Not, C., Hillaire-Marcel, C., Marine evidence from Lomonosov ridge for an Arctic trigger event of the Younger Dryas, European Geosciences Union (Vienna, Austria, 2011.04) Poster.

Hillaire-Marcel, C., Not, C., Ghaleb, B., De Vernal, A., Setting chronostratigraphies in low sedimentation rate sequences from the Arctic Ocean: isotopic approaches with focus on U-series, European Geosciences Union (Vienna, Austria, 2011.04) Oral.

Fagel, N., Gueibe, J., Mattielli, N., Not, C., Hillaire-Marcel, C., Sedimentary provenances over glacial/interglacial stages in central Arctic constrained by mineralogy and radiogenic tracers, European Geosciences Union (Vienna, Austria, 2011.04) Poster.

☆BELQUA workshop (Belgium, 2011.3)★

Fagel, N., Gueibe, J., Mattielli, N., Not, C., Hillaire-Marcel, C., Evolution of sedimentary supplies over the last 400 kyr in the Canadian Arctic. BELQUA workshop, (Brussels, Belgium, 2011.03.23) Oral.

☆AGU Chapman Conference on Climates, Past Landscapes, and Civilizations (USA, 2011.3)★

Nakamura, A., Y. Yokoyama, H. Maemoku, H. Yagi, M. Okamura, H. Matsuoka, N. Miyake, T. Osada, H. Teramura, T. Yamada, D. P. Adhikari, V. Dangol and H. Matsuzaki, Mid-Late Holocene Asian monsoon reconstruction using a sediment core obtained from Lake Rara, western Nepal, AGU Chapman Conference on Climates, Past Landscapes, and Civilizations (Santa Fe, USA, 2011.3) Oral.

Miyake, N., A. Momohara, A. Nakamura, M. Okamura, H. Matsuoka, H. Maemoku, H. Yagi, V. Dangol, T. Osada, Vegitation changes since the middle Holocene around Lake Rara, western Nepal. Climates, Past Landscapes and Civilizations. American Geophysical Union Chapman Conference, AGU Chapman Conference on Climates, Past Landscapes, and Civilizations (Santa Fe, USA, 2011.3) Poster.

☆Space Climate Symposium 4 (India, 2011.1)★

Miyahara, H., Y. Yokoyama, Y. T. Yamaguchi, H. Matsuzaki and T. Nakatsuka, Variations of solar activity, cosmic rays, and climate during the Maunder Minimum, Space Climate Symposium 4 (Goa, India, 2011.1) Invited.

2010

Yokoyama, Y., Perspectives of Paleoclimate and Paleoceanography studies under the collaboration between Japan-NZ institutions, JSPS-RSNZ Joint Seminar Program: Symposium on the IBM and KA Arcs in Western Pacific: Current Knowledge and Future Research Goals (Koshiba Hall, The University of Tokyo, Tokyo, Japan, 2010.12.1-2) Invited.

Miyahara, H., Y. Yokoyama, Y. T. Yamaguchi, K. Sho and T. Nakatsuka, Influence of Cosmic rays on Climate Change, PMIP 3 Workshop (Kyoto, Japan, 2010.12) Poster.

Miyahara, H., Solar activity and climate, Japanese-American Frontiers of Science (Chiba, Japan, 2010.12)
Invited.

Nakamura, A., Y. Yokoyama, H. Maemoku, H. Yagi, M. Okamura, H. Matsuoka, N. Miyake, T. Osada, H. Teramura, T. Yamada, D. P. Adhikari, V. Dangol and H. Matsuzaki, Holocene variability of the Asian monsoon inferred from a sediment core obtained from Lake Rara, western Nepal, Sixth Nepal Geological Congress on Geology, Natural Resources, Infrastructures, Climate Change and Natural Disasters (Kathmandu, Nepal, 2010. 11) Poster.

Yamaguchi, Y. T., Y. Yokoyama, H. Miyahara, K. Sho and T. Nakatsuka, Synchronized Northern Hemisphere Climate Change and Solar Magnetic Cycles during the Maunder Minimum, PAGES 1st Asia 2k Workshop (Nagoya, Japan, 2010.8) Poster.

Kawakubo, Y., Y. Yokoyama, A. Suzuki, C. Alibert and S. Eggins, A 432-year-long paleoceanography recorded in Porites coral in Kikai Island, Southern Japan, PAGES 1st Asian 2K Workshop (Nagoya, Japan, 2010.8) Poster.

Nakamura, A., Y. Yokoyama, H. Maemoku, H. Yagi, M. Okamura, H. Matsuoka, N. Miyake, T. Osada, H. Teramura, T. Yamada, D. P. Adhikari, V. Dangol and H. Matsuzaki, Late Holocene variability of the Asian monsoon: Reconstruction from sediment cores obtained from Lake Rara, western Nepal, PAGES 1st Asia 2k Workshop (Nagoya, Japan, 2010. 8) Poster.

Miyahara, H., Y. Yokoyama, Y. T. Yamaguchi, T. Nakatsuka, K. Horiuchi, S. Fallon and H. Matsuzaki, Variability of solar activity and cosmic rays, and their influences on climate change, SCOSTEP STP-12 Symposium (Berlin, Germany, 2010.7) Oral.

Miyahara, H., Y. Yokoyama, Y. T. Yamaguchi, H. Matsuzaki and T. Nakatsuka, Variability of cosmic rays and its influence on climate change at the multi-decadal time scale, COSPAR meeting (Bremen, Germany, 2010.7) Oral.

Miyahara, H., Y. Yokoyama, K. Horiuchi, S. Fallon and H. Matsuzaki, Long-term Variation of Solar Activity Level during the Past 7000 Years , Asia Oceania Geosciences Society meeting (Hyderabad, India, 2010.7) Oral.

Kawakubo, Y., Y. Yokoyama, A. Suzuki, C. Alibert and S. Eggins, A 432-year-long paleoceanography recorded in Porites coral in Kikai Island, Southern Japan, 2010 PAGES Regional Workshop in Japan (Nagoya, Japan, 2010.6) Poster.

Nakamura, A., Y. Yokoyama, H. Maemoku, H. Yagi, M. Okamura, H. Matsuoka, N. Miyake, T. Osada, H. Teramura, T. Yamada, D. P. Adhikari, V. Dangol and H. Matsuzaki, Holocene variability of the Asian monsoon inferred from a sediment core obtained from Lake Rara, 2010 PAGES Regional Workshop (Nagoya, Japan, 2010.6) Poster.

Kubota, K., Y. Yokoyama, S. Sakai, H. Matsuzaki, T. Toyohuku, K. Iijima, T. Osada, P. Ajithprasad and S. K. Bhattacharya, Mid Holocene climate reconstruction using oxygen isotopic composition of modern and fossil catfish otolith (Ariopsis spp.) in North West India and its relation to Indus civilization, 2010 PAGES Regional Workshop in Japan (Nagoya, Japan, 2010.6) Poster.

Miyahara, H., Y. Yokoyama, Y. T. Yamaguchi, H. Matsuzaki, T. Nakatsuka, K. Horiuchi and S. Fallon, Historical changes in solar activity and its impact on regional-global climate, 2010 PAGES Regional Workshop in Japan (Nagoya, Japan, 2010.6)
Invited.

Miyahara, H., Y. Yokoyama, H. Matsuzaki, K. Horiuchi and S. Fallon, Long-term variation of solar activity during the last 7000 years, WCU International Workshop 2010 (Seoul, Korea, 2010.4) Oral.

Miyahara, H., Y. Yokoyama and Y. T. Yamaguchi, Possible link between multi-decadal climate cycles and variable solar magnetic cycles, ESF-JSPS Frontier Science Conference Series for Young Researchers,Contact Zones of Empires in Asia and Europe: Complexity, Contingency, Causality (Fukuoka, Japan, 2010.2-3) Oral.

Miyahara, H., T. Aze and Y. Yokoyama, Long-term variation of GCR/SEP events revealed by ice core analysis: A review, Solar Energetic Particles: Origin and Environmental Impacts (Kyoto, Japan, 2010.1)
Invited.

2009

Miyahara, H., Y. Yokoyama and Y. T. Yamaguchi, Possible influence of cosmic rays on climate change, CAWSESII workshop "Origin and consequence of the present low solar activity" (Tokyo, Japan, 2009.12) Oral.

Miyahara, H., K. Horiuchi, Y. Muramatsu, H. Takahashi, H. Matsuzaki and H. Motoyama, Solar irradiance during the last 1300 years reconstructed from beryllium-10 content in the Dome Fuji ice core, The 2nd International Symposium on Dome Fuji Ice Core and Related Topics (Tokyo, Japan, 2009.11) Poster.

Troiani, T., A.R. Simms, T. Dellapenna, Y. Yokoyama and T. Weaver, The impact of changing winds on estuarine evolution, Copano Bay, TX., Geological Society of America (Portland, USA, 2009.10) Poster.

Miller, L., A.R. Aimms, A. Cruse, E.A. Atekwana, Y. Yokoyama and A. Rodriguez, Was the 8.2ka event 3 events?, Geological Society of America (Portland, USA, 2009.10) Poster.

Simms, A.R., N. Aryal, T. Troiani and Y. Yokoyama, Methods for reconstructing Holocene Sea Levels in South Texas, Geological Society of America (Portland, USA, 2009.10) Oral.

Yokoyama, Y., M. Yamane,, N. Ohkouchi and H. Matsuzaki, Methods for detecting Holocene sea level signals in Antarctica, Geological Society of America (Portland, USA, 2009.10)
Invited.

Yamane, M. and Y. Yokoyama, East Antarctic Ice Sheet fluctuations and global climate changes during the last 5 Myr, INVEST 2009 (Bremen, Germany, 2009.9) Poster

Yamaguchi, Y. T., Y. Takano, Y. Chikaraishi, Y. Yokoyama and N. Ohkouchi, Compound-specific nitrogen isotope compositions of amino acids from microorganisms as a tool for studying microbial processesn, INVEST 2009 (Bremen, Germany, 2009.9) Poster

Yamaguchi, Y. T., Y. Takano, Y. Chikaraishi, Y. Yokoyama and N. Ohkouchi, Nitrogen isotopic compositions of amino acids from microorganisms as a tool for studying microbial processesn, 19th International Symposium on Environmental Biogeochemistry (Humburg, Germany, 2009.9) Poster

Yamaguchi, Y. T., Y. Chikaraishi, N. O. Ogawa, Y. Yokoyama and N. Ohkouchi, A rapid analytical method for compound-specific nitrogen isotopic composition of amino acids via N(O,S)-ethoxycarbonyl ethyl ester derivatisation, 24th International Meeting on Organic Geochemistry (Bremen, Germany, 2009.9) Poster

Yamane, M. and Y. Yokoyama, East Antarctic Ice Sheet fluctuations and global climate changes during the last 5 Myr, 1st Antarctic Climate Evolution Symposium (Granada, Spain, 2009.9) Poster.

Miyahara, H., Y. Yokoyama, Y.T. Yamaguchi, K. Masuda, T. Nakamura, Y. Muraki, Influence of the Schwabe/Hale solar cycles on climate change, XXVII General Assembly of International Astronomical Union (Rio de Janeiro, Brazil, 2009. 8)
Invited.

Yamaguchi, Y. T., Y. Chikaraishi, N. O. Ogawa, Y. Yokoyama, H. Matsuzaki, K. Fujikura, K. Oguri, H. Kitazato and N. Ohkouchi, Isotopic diagnoses of the clam and the tubeworm from oceanic chemosynthetic communities around Hatsushima, Sagami-Bay, Japan, 4th International Symposium on Chemosynthesis-Based Ecosystems (Okinawa, Japan, 2009.6) Poster.

2008

Ohkouchi, N., M. Koizumi, J. B. Anderson, T. I. Eglinton, H. Miura and Y. Yokoyama, Application of compound-specific radiocarbon dating for Antarctic margin sediments, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Invited.

Suzuki, A., Y. Yokoyama, H. Kan, N. Hamanaka, H. Matsuzaki and H. Kawahata, Identification of 1771 Meiwa Tsunami deposits using radiocarbon dating and oxygen isotope microprofiling of emerged massive coral boulders, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Koizumi, M., Y. Yokoyama, J. B. Anderson, H. Matsuzaki and N. Ohkouchi, Development a Novel Method to Isolate Fatty Acids for Compound-specific Radiocarbon Dating to Reconstruct West Antarctic Ice Sheet Melting History, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Yamane, M., Y. Yokoyama, H. Miura, H. Maemoku, S. Iwasaki and H. Matsuzaki, Timing of the last deglaciation in Skarvsnes, Lutzow-Holm Bay, East Antarctica, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Miyahara, H., Y. Yokoyama, Y. T. Yamaguchi and K. Masuda, Effect of solar variations on the decadal climate cycle, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Suganuma, Y., Y. Yokoyama and T. Yamazaki, The Brunhes/Matuyama polarity transition recorded as Be-10 flux changes in deep-sea sediments, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Ikehara, M., B. Khim, Y. Nakamura, Y. Nogi, K. Katsuki, Y. Suganuma, K. Kameo, H. Miura, Y. Yokoyama, S. Kawamura and S. Kita, Late Quaternary Paleoceanographic Changes over the Conrad Rise and off Lutzow-Holm Bay in the Indian Sector of the Southern Ocean, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Tyler, J. J., Y. Yokoyama, Y. Kashiyama, N. O. Ogawa, N. Ohkouchi, M. Ikehara and T. Nakagawa, Late Glacial environmental change at Lake Suigetsu, central Japan: preliminary evidence from bulk organic and compound specific isotope geochemistry, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Yamaguchi, Y. T., Y. Yokoyama, H. Miyahara and T. Nakatsuka, Fluctuations in Tree Ring Cellulose d18O during the Little Ice Age Correlate with Solar Activity, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Kubota, Y., K. Kimoto, R. Tada, H. Oda and Y. Yokoyama, Variations of East Asian Summer Monsoon Deduced from the Results of Mg/Ca and Oxygen Isotope of Planktic Foraminifera in the East China Sea Since the Last Deglaciation, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Oral.

Inoue, M., M. Harada, A. Suzuki, M. Tanimizu and Y. Yokoyama, Variations of chemical components in fossil corals collected from Tahiti by IODP Expedition 310, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Lund, S., E. Platzman, N. Thouveny, G. Camoin, Y. Yokoyama, H. Matsuzaki and C. Seard, Evidence for Two New Magnetic Field Excursions (11,000 and 13,000 Cal Yrs BP) from sediments of the Tahiti Coral Reef (Maraa tract), American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Tada, R., N. Lavidalie, K. Nagashima and Y. Yokoyama, Extending the Record of Millennial-scale Variability of East Asian Summer Monsoon Back to 650 ka and Beyond, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Yokoyama, Y., H. Suga, T. Naruse, N. O. Ogawa, H. Kitazato, A. Abe-Ouchi and N. Ohkouchi, Rapid transmission of Climate Signals from the North Atlantic to the far Eastern Eurasian continent during the Last Deglacial period, American Geophysical Union, Fall Meeting (San Francisco, USA, 2008.12) Poster.

Yokoyama, Y., Empirical Constraints on sea-level rise in future, Japanese-American Frontiers of Science Symposium (Irvine, CA, USA, 2008.12)
Invited.

Miyahara H., Y. Yokoyama, Y. T. Yamaguchi, H. Matsuzaki, K. Masuda, K. Nagaya, T. Nakamura, T. Nakatsuka and Y. Muraki, Variations of solar and climate proxies during the last 1200 years, International Workshop on Variabilities of Solar-Cosmic and Terrestrial Environment (Yokohama, Japan, 2008.12)
Invited.

Yamaguchi, Y. T., Y. Yokoyama, Y. Chikaraishi, N. O. Ogawa, K. Fujikura, K. Oguri, H. Matsuzaki, H. Kitazato and N. Ohkouchi, Nitrogen isotopic compositions of amino acids and radiocarbon contents in oceanic chemosynthetic communities, 7th International Symposium for Subsurface Microbiology (Shizuoka, Japan, 2008.11) Poster.

Aze, T., Y. Yokoyama, K. Horiuchi, H. Matsuzaki, T. Yamagata, M. Maruyama, R. Uemura, H. Motoyama, Preliminary results of Be-10 and Cl-36 analysis during 35 - 45 kyr BP at the Dome Fuji ice core, Antarctica, The 11th International Conference on Accelerator Mass Spectrometry (Rome, Italy, 2008.9) Poster.

Miyairi Y., Y. Yokoyama, K. Horiuchi, R. Kondo, H. Matsuzaki, Precise determinations of eruption ages in Northeast Japan during Marine Isotope Stage (MIS) 3, The 11th International Conference on Accelerator Mass Spectrometry (Rome, Italy, 2008.9) Poster.

Ramsey C. B., T. Nakagawa, E. Pearson, R. Payne, F. Brock, R. Staff, C. Bryant, H. Lamb, M. Marshall, Y. Yokoyama, J. Tyler, A. Brauer, G. Schlolaut, P. Tarasov, Suigetsu-2006: preliminary AMS radiocarbon results and age depth model, The 11th International Conference on Accelerator Mass Spectrometry (Rome, Italy, 2008.9) Poster.

Suganuma Y., T. Yamazaki, T. Kanamatsu, Southeast Asian monsoon variability during the past 800 kyr revealed by rock magnetic proxies, 6th International Conference on Asian Marine Geology (Kochi, Japan, 2008.8) Oral.

Maeda Y., F. P. Siringan, Y. Yokoyama and G. Quina, Rapid Sea-level Rise in Mid-Holocene in the Philippines, 6th International Conference on Asian Marine Geology (Kochi, Japan, 2008.8) Poster.

Yokoyama, Y., H. Suga, T. M. Esat, N. O. Ogawa, N. Ohkouchi and K. Lambeck, Sea-level changes during the time into and out of the Last Glacial Maximum, PAGES/IMAGES workshop "Empirical constratints on future sea-level rise" (Bern, Switzerland, 2008.8)
Invited.

Yokoyama, Y., H. Suga, T. M. Esat, N. Ohkouchi and K. Lambeck, Global ice volume changes during MIS 3 and 2 reconstructed in sea-level observations from Western Pacific sites, 2008 Biennial Meeting of the American Quaternary Association (Pennsylvania, USA, 2008.6)
Invited.

Miyahara, H., Y. Yokoyama, and K. Masuda, Transition of the Schwabe/Hale Solar Cycles Associated with the Long-Term Variation of Solar Activity, International workshop on Solar Variability, Earth’s Climate and the Space Environment (Montana, USA, 2008.6) Oral.

Miyahara, H., Reconstruction of solar activity in the past using cosmogenic radiocarbon, American Geophysical Union, Spring Meeting (Florida, USA, 2008.5)
Invited.

2007

Miyahara, H. Y. Yokoyama, H. Matsuzaki, K. Horiuchi, H. Motoyama, High-resolution measurement of beryllium-10 in the Dome Fuji shallow ice core during the Maunder Minimum, American Geophysical Union, Fall Meeting (San Francisco, USA, 2007.12) Poster.

Wen, G., R. F. Cahalan, H. Miyahara and A. Ohmura, Modeling Lunar Borehole Temperature in order to reconstruct Historical Total Solar Irradiance and Estimate Surface Temperature in Permanently Shadowed Regions, American Geophysical Union, Fall Meeting (San Francisco, USA, 2007.12) Poster.

Yokoyama, Y., T. Naruse, N. Ohkouchi, T. M. Esat and K. Lambeck, Rapid increase in global ice volume at the inception of the Last Glacial Maximum, American Geophysical Union, Fall Meeting (San Francisco, USA, 2007.12)
Invited.

Kobayashi, T., Y. Yokoyama, A. Suzuki, F. Siringan, Y. Maeda, K. Minoshima, H. Matsuzaki, H. Kawahata, Mid-Holocene South China Sea Paleoceanographic reconstruction using corals from the Northern Philippines coast, American Geophysical Union, Fall Meeting (San Francisco, 2007.12) Poster.

Oda, H., Y. Yokoyama and S. Horiike, Environmental Magnetic Record of the past 220 kyr from Timor Sea, American Geophysical Union, Fall Meeting (San Francisco, USA, 2007.12) Oral.

Horiike, S., Y. Yokoyama, S. Sakai, N. Ohkouchi, H. Kawahata, A. Suzuki, H. Oda and H. Matsuzaki, Timing of the intensification of Australian Monsoon during the last two terminations recorded in the deep sea sediment core from Timor Sea, American Geophysical Union, Fall Meeting (San Francisco, USA, 2007.12) Poster.

Kawahata, H., H. Yamamoto, K. Ohkushi, Y. Yokoyama, K. Kimoto and K. Yamaoka, Linkage between human activity and environments during the mid-Holocene Hypsithermal climatic interval -Changes in human activity at the Sannai-Maruyama ruins in Japan-, American Geophysical Union, Fall Meeting (San Francisco, USA, 2007.12) Oral.

Miyahara, H., Y. Yokoyama, K. Masuda, K. Nagaya, K. Kitazawa, Y. Muraki, H. Kitagawa, and T. Nakamura, Effect of Variable Schwabe/Hale Cycles of the Sun on Climate Change, SCOSTEP, International CAESES Symposium (Kyoto, Japan, 2007.10)
Invited.

Miyahara, H., Y. Yokoyama, K. Masuda, K. Nagaya, K. Kitazawa, Y. Muraki, and T. Nakamura, Changing cycles of the Sun and climate, EASTEC Symposium 2007 Dynamic Earth -its origin and future-, (Sendai, Japan, 2007.9)
Invited.

Yokoyama, Y., Links between Last Glacial climate variability and sea levels, 9th International Conference on Paleoceanography, (Shanghai, China, 2007.9)
Invited.

Ohkouchi, N., T. I. Eglinton, M. Toyoda, Y. Chikaraishi, M. Koizumi, H. Tokuyama, H. Miura and Y. Yokoyama, Application of compound-specific radiocarbon dating for studying West Antarctic Ice Sheet during the Late Quaternary, Goldschmidt Conference 2007 (Cologne, Germany, 2007.8) Oral.

Miyahara, H., K. Masuda, K. Nagaya, Y. Muraki, and T. Nakamura, Variation of the eleven-year solar cycle during the last 1200 years and its effect on terrestrial climate, The XXIV meeting of IUGG (Perugia, Italy, 2007.7) Poster.

Yokoyama, Y. and K. Lambeck, Last Glacial Sea-level recorded in the far field marine sediment cores from marginal seas, International Union for Quaternary Research Congress XVII, (Cairns, Australia, 2007.7)
Invited.

Yokoyama, Y., A. Suzuki, F. Siringan, A. Abe-Ouchi, R. Ohgaito, Y. Maeda, H. Kawahata and H. Matsuzaki, Northern South China Sea mid Holocene SST and SSS: using fossil coral and Atmosphere-Ocean GCM model, International Union for Quaternary Research Congress XVII (Cairns, Australia, 2007.7) Oral.

Maeda, Y., Y. Yokoyama and F. Siringan, Three sea-level still stands in the middle to late Holocene in the Philippines: implications to the history of glacial melting, International Union for Quaternary Research Congress XVII (Cairns, Australia, 2007.7) Poster.

Miyairi, Y., Y. Yokoyama, S. Tsukamoto and H. Matsuzaki, Filling the gap between radiocarbon and K-Ar chronology using coupled AMS radiocarbon measurements and red thermoluminescence dating for Quaternary tephra, International Union for Quaternary Research Congress XVII (Cairns, Australia, 2007.7) Poster.

Yamane, M., Y. Yokoyama, H. Miura, H. Maemoku, S. Iwasaki and H. Matsuzaki, Reconstruction of the East Antarctic Ice Sheet history along the Skarvsnes coast using in situ produced cosmogenic nuclides, XVII INQUA Congress 2007 (Cairns, Australia, 2007.7) Poster.

Esat, T. M. and Y. Yokoyama, Coral U-series ages: U in corals and in the oceans, International Union for Quaternary Research Congress XVII (Cairns, Australia, 2007.7).

Martinez, J. I., C. Gomez, Y. Yokoyama, T. T. Barrows, L. Keigwin and J. L. Schneider, Late Quaternary paleoceanography and paleoproductivity of the Eastern Equatorial Pacific (EEP): response to nutrients input from Colombian Pacific rivers and coastal upwelling, International Union for Quaternary Research Congress XVII (Cairns, Australia, 2007.7).

2006

Yokoyama, Y., A. Suzuki, F. Siringan, Y. Maeda, A. Abe-Ouchi, H. Matsuzaki, R. Ohgaito and H. Kawahata, Mid Holocene SST record from Northern South China Sea using fossil coral and Atmosphere-Ocean GCM model, American Geophysical Union, Fall Meeting (San Francisco, USA 2006.12) Oral.

Elliote, M., K. Welsh, Y. Yokoyama, M. McCulloch and J. Chappell, Holocene records of Western Pacific Warm Pool paleoclimate using fossil long-lived giant Tridacna from Papua New Guinea, American Geophysical Union, Fall Meeting (San Francisco, USA 2006.12) Oral.

Abe-Ouchi, A., R. Ohgaito, A. Oka and Y. Yokoyama, Global response to fresh water release under different climate states, American Geophysical Union, Fall Meeting (San Francisco, USA 2006.12) Poster.

Maemoku, H., H. Miura, S. Iwasaki, Y. Yokoyama and H. Matsuzaki, Holocene Glacial Fluctuation Reconstructed from Glacio-marine Sediments at Skallen in the Lützow-Holm Bay, East Antarctica, American Geophysical Union, Fall Meeting (San Francisco, USA 2006.12) Poster.

Yokoyama, Y., Cosmogenic nuclides recorded melting history of the Enderby Land and the Dronning Maud Land of East Antarctic Ice Sheet during the Marine Isotope Stage 3, International symposium of AMS study “Prospects for the New Frontiers of Earth and Environmental Sciences” (Tokyo, Japan, 2006.10)
Invited.

Aze, T., Y. Yokoyama, H. Matsuzaki, K. Horiuchi, Y. Shibata and H. Motoyama, Clorine-36 variability for the past 900 years recorded in the Dome Fuji shallow ice core, International symposium of AMS study "Prospects for the New Frontiers of Earth and Environmental Sciences" (Tokyo, Japan, 2006.10).

Miyairi, Y., Y. Yokoyama, H. Matsuzaki and S. Tsukamoto, Filling the gap between radiocarbon and K-Ar chronology using coupled AMS radiocarbon measurements and Red Thermoluminescence dating for Quaternary tephra, International symposium of AMS study "Prospects for the New Frontiers of Earth and Environmental Sciences" (Tokyo, Japan, 2006.10).

Yamane, M., Y. Yokoyama, H. Miura, H. Maemoku, S. Iwasaki and H. Matsuzaki, East Antarctic glaciations along the Skarvsnes coast recorded in cosmogenic nuclides, International symposium of AMS study "Prospects for the New Frontiers of Earth and Environmental Sciences" (Tokyo, Japan, 2006.10) Poster.

Shiroya, K., Y. Yokoyama, S. Sakamoto, and H. Matsuzaki, A study on the aridification in the Atacama Desert, Chile using in-situ 10Be and 26Al, International symposium of AMS study ―Prospects for the New Frontiers of Earth and Environmental Sciences (Tokyo, Japan, 2006.10) Poster.

Horiike, S., Y. Yokoyama, S. Sakai, N. Ohkouchi, H. Kawahata, A. Suzuki, H. Oda and H. Matsuzaki, Paleoceanography in Timor Sea: Study for understanding the role of Western Pacific Warm Pool and Indonesian Through Flow for global climate, International symposium of AMS study "Prospects for the New Frontiers of Earth and Environmental Sciences" (Tokyo, Japan, 2006.10) Poster.

Ikeda, S., Y. Yokoyama, Y. Hamano, T. Nakagawa and H. Matsuzaki, Geomagnetic field reconstruction during the last 100,000 years based on remanent magnetization and Be-10 measurements form Lake Suigetsu sediments, International symposium of AMS study "Prospects for the New Frontiers of Earth and Environmental Sciences" (Tokyo, Japan, 2006.10) Poster.

Yokoyama, Y., A. Purcell, J. F. Marshall and K. Lambeck, Sea-level during the early deglaciation period in the Great Barrier Reef, Australia, SEALAIX’06 Sea Level Changes: Records, Processes, and Modelling (Giens, France, 2006.9).

Maeda, Y., Y. Yokoyama, F. P. Siringan and H. Matsuzaki, Holocene sea-level change records in the Philippines, SEALAIX’06 Sea Level Changes: Records, Processes, and Modelling (Giens, France, 2006.9).

Esat, T. M., and Y. Yokoyama, Growth patterns of the last ice age coral terraces at Huon Peninsula, SEALAIX’06 Sea Level Changes: Records, Processes, and Modelling (Giens, France, 2006.9).

Deschamps, P., N. Durand, E. Bard, B. Hamelin, G. Camoin, A. L. Thomas, G. M. Henderson, Y. Yokoyama and IODP Expedition 310 Scientists, Extending the Tahiti Post-Glacial sea-level record with offshore drilled corals. First results from IODP Expedition 310, SEALAIX’06 Sea Level Changes: Records, Processes, and Modelling (Giens, France, 2006.9).

Thomas, A. L., G. M. Henderson, P. Deschamps, Y. Yokoyama, E. Bard, N. Durand, B. Hamelin, G. Camoin and IODP Expedition 310 Scientists, Extending the Tahiti Post-Glacial sea-level record with offshore drilled corals. First results from IODP Expedition 310, SEALAIX’06 Sea Level Changes: Records, Processes, and Modelling (Giens, France, 2006.9).

Westphal, H., G. Camoin, J. Peckmann, K. Heindel, C. Seard, A. Eisenhauer and IODP Expedition 310 Scientists, Reef response to last deglacial rapid sea-level rise: The microbialite question (IODP Expedition #310), SEALAIX’06 Sea Level Changes: Records, Processes, and Modelling (Giens, France, 2006.9).

Yokoyama Y., Rapid melting and growing of the Antarctic ice sheet during the last ice age observed from on and off shore samples, Special Seminar at the Research Center for Ocean Margins (RCOM), Bremen University (Bremen, Germany, 2006.2)
Invited.

2005

Yokoyama, Y., M. Noumi, H. Miura, N. Ohkouchi, and H. Matsuzaki, Rapid fluctuations of West Antarctic Ice Sheet during the last deglaciation recorded in the sediment cores from off the Antarctic Peninsula, American Geophysical Union, Fall Meeting (San Francisco, USA, 2005.12).

Takada, M., H. Miura, H. Maemoku, Y. Yokoyama, and S. Iwasaki, OSL Ages Of Quaternary Sediments In The Luzow-Holm Bay Region, East Antarctica, And Their Implications American Geophysical Union, Fall Meeting (San Francisco, USA, 2005.12).

Yokoyama, Y., Y. Miyairi, H. Matsuzaki, and F. Tsunomori, Effects of the CO2 production duration in the vacuum test tube on AMS radiocarbon graphitization target preparation system, International Conference on Accerelator Mass Spectrometry Studies (Berkeley, USA, 2005.9).

Aze, T., H. Matsuzaki, H. Matsumura, H. Nagai, M. Fujimura, M. Noguchi, Y. Hongo, and Y. Yokoyama, An improvemtnt of 36Cl-AMS system at MALT using the Monte Carlo ion trajectry simulation in Gas-filled Magnet, International Conference on Accerelator Mass Spectrometry Studies (Berkeley, USA, 2005.9).

Miyairi, Y., T. Fukuoka, H. Matsuzaki, I. Kaneoka, and Y. Yokoyama, An quantitative evaluation of modern carbon contamination processes during the sample treatments for LS spectrometry using AMS, International Conference on Accerelator Mass Spectrometry Studies (Berkeley, USA, 2005.9).

Tada, R., K. Nagashima, Y. Kido, and Y. Yokoyama, Millennial-scale variability of Asian monsoon and its impact on Japan Sea paleoceanography, PAGES 2nd Open Science Meeting (Beijing, China, 2005.8).

Yokoyama, Y., Last ice age global ice volume and climate changes reconstructed from the far-field sea-level studies, International Workshop on Sub-aerially exposed continental shelves since the Middle Pleistocene climatic transition (Hong Kong, China, 2005.5)
Invited, Key note.

Yokoyama, Y., Global ice volume fluctuations deduced from far-field sea-level data and glacio-hydro isostatic modeling, International Meeting on Past changes in Western Equatorial Pacific (Taipei, Taiwan, 2005.3)
Invited.

Yokoyama, Y., Melting history of the Enderby land in the East Antarctic Ice sheets. International Workshop on Earth Evolution (Tokyo, Japan, 2005.2) Oral.

Yokoyama, Y., Global ice volume and climate changes during the last ice age, International Workshop on Variability and Predictability of the Earth Climate System (Tokyo, Japan, 2005.1).

Yokoyama, Y., Melting history of the East Antarctic Ice Sheets and climate changes during the last ice age, International Symposium on geodynamics and climate changes: Lambeck Symposium (Tokyo, Japan, 2005.1).

2004

Yokoyama, Y., A. Suzuki, H. Kawahata and T. M. Esat, Last Interglacial Sea-Surface Temperature recorded in Porites corals obtained from Hateruma, Japan, American Geophysical Union, Fall Meeting (San Francisco, USA, 2004.12).

Martinez, J. I., D. A. Rincon, Y. Yokoyama, and T. T. Barrows, Micropaleontological successions in the Panama Basin during the Last Deglaciation: Response to sea-surface productivity induced by a transient climate change, 8th International Conference on Paleoceanography (Biarritz, France, 2004.9).

Yokoyama, Y., A. Suzuki and H. Kawahata, Last Interglacial Sea-Surface Temperature recorded in Porites corals obtained from Hateruma, Japan, 8th International Conference on Paleoceanography (Biarritz, France, 2004.9).

2003

Yokoyama, Y., H. Miura, D. P. Zwartz, M. Takada, R.C. Finkel, H. Maemoku and K. Moriwaki, Melting history of the Enderby Land and the Dronning Maud Land of East Antarctic ice Sheet During the Marine Idotope Stage3 and Holocene. American Geophysical Union, Fall Meeting (San Francisco, USA, 2003.12)

Yokoyama, Y., Last Glacial ice volume fluctuations, IMAGES PEPD meeting (Kelung, Taiwan, 2003.11)
Invited.

Yokoyama, Y., Rapid fluctuations of global ice volume during the last ice age recorded in uplifted coral terraces, Workshop on Climate change study using Coral reefs (Tsukuba, Japan, 2003.10)
Invited.

Yokoyama, Y., P. DeDeckker and K. Lambeck, Last Glacial Maximum sea-level obtained from Bonaparte Gulf of Australia using micropalaeontological evidence, XVI INQUA Congress (Nevada, USA, 2003.7)

Gomez, A. A., J. I. Martinez, E. Siegert, Y. Yokoyama, E. Rendón, Reconstruccion De Cambios Paleobatimetricos Holocenicos En La Región De Cartagena, Caribe Colombiano Basados En La Malacofauna, Geological Congress of Colombia (Colombia, USA, 2003.7)

2002

Yokoyama, Y., T. M. Esat and K. Lambeck, Last Glacial climate change correlated with sea-level changes recorded in the coral terraces, American Geophysical Union, Fall Meeting (San Francisco, USA, 2002.12)

Yokoyama, Y., M. W. Caffee, R. C. Finkel, J. R. Southon, K. Nishiizumi and F. J. Ryerson, Measurements of in-situ produced 14C in terrestrial rocks, 9th International Conference on Accelerator Mass Spectrometry (Nagoya, Japan, 2002.9)

Yokoyama, Y., M. W. Caffee, R. C. Finkel, F. J. Ryerson., J. R. Southon, and K. Nishiizumi, Extractions of in-situ produced 14C in terrestrial quartz and measurements of 14C production rate using saturated quartz, Goldschmidt Conference (Davos, Switzerland, 2002.8)

Esat, T. M. and Y. Yokoyama, Rapid sea-level, ice-volume and radiocarbon excursions during a Heinrich Event at Huon Peninsula. Goldschmidt Conference (Davos, Switzerland, 2002.8)

2001

Yokoyama, Y., M. W. Caffee, R. C. Finkel, J. R. Southon, and K. Nishiizumi, Extraction of in-situ produced 14C in terrestrial rocks, American Geophysical Union, Fall Meeting (San Francisco, USA, 2001.12)

Yokoyama, Y., K. Lambeck and A. Purcell, Global ice volume during the Oxygen Isotope Stage 2 and 3, 7th International Conference on Paleoceanography (Sapporo, Japna, 2001.9)

2000

Yokoyama, Y., M. W. Caffee, R. C. Finkel, J. R. Southon, and K. Nishiizumi, Measurements of in-situ produced 14C in terrestrial rocks. American Geophysical Union, American Geophysical Union, Fall Meeting (San Francisco, USA, 2000.12)

Yokoyama, Y., K. Lambeck, P. De Deckker, P. Johnston and L. K. Fifield, New constraints on ice volumes and time of the termination of the last glacial maximum deduced from sea-level changes, Environmental Processes of the Ice Age: Land, Oceans, and Glaciers (EPILOG) (Oregon, USA, 2000.10)
Invited.

Yokoyama, Y., T. M. Esat, K. Lambeck, and L. K. Fifield, Direct evidence for oceanic involvement in millennial scale climate changes of the Last Ice Age, Environmental Processes of the Ice Age: Land, Oceans, and Glaciers (EPILOG) (Oregon, USA, 2000.10)

Lambeck, K., Y. Yokoyama and J. Chappell, Global ice volume during the Oxygen Isotope Stage 3 and 2, Environmental Processes of the Ice Age: Land, Oceans, and Glaciers (EPILOG) (Oregon, USA, 2000.10) Invited.

Yokoyama, Y., T. M. Esat, K. Lambeck, and L. K. Fifield, Millennial scale climate changes recorded in Huon Peninsula corals., 9th Coral Reef International Symposium (Bali, Indonesia, 2000.10)

Yokoyama, Y., T. M. Esat, K. Lambeck, and L. K. Fifield, Last Ice Age millennial scale climate changes recorded in Huon Peninsula corals., Goldschmidt Conference, Goldschmidt 2000 (Oxford, UK, 2000.9)

Esat, T. M. and Y. Yokoyama, Correlated Uranium isotopic fluctuations with sea-level change., Goldschmidt Conference, Goldschmidt 2000 (Oxford, UK, 2000.9)

Yokoyama, Y., K. Lambeck, P. De Deckker, P. Johnston and L. K. Fifield, New constraints on ice volumes and time of the termination of the last glacial maximum, European Geophysical Society 25th General Assembly (Nice, France, 2000.4)

De Deckker, P., S. van der Kaars, T. T. Barrows, L. K. Fifield, G. M. Santos and Y. Yokoyama, The Indian Ocean sector of the Warm Pool; Two modes of operation during the last 40,000 years, Western Pacific Geophysical meeting; AGU (Tokyo, Japan, 2000.6)

Yokoyama, Y., K. Lambeck, P. De Deckker, P. Johnston and L. K. Fifield, Sea-level in the Australian region during the Last Glacial Maximum and the Late Glacial period, Quaternary Studies Meeting in Australia (Canberra, Australia, 2000.2)

De Deckker, P., S. van der Kaars, K. Takahashi, T. T. Barrows, L. K. Fifield, G. M. Santos, Y. Yokoyama, J. Olley, R. G. Roberts and E. K. Lawson, Palaeoenvironmental change on land and at sea in the vicinity of Cape Range of Western Australia –A 50,000 years record unravelled using numerous proxies on a deep-sea core, Quaternary Studies Meeting in Australia (Canberra, Australia, 2000.2)

-1999

Yokoyama, Y., T. M. Esat, K. Lambeck and L. K. Fifield, Last ice age millennial scale climate changes recorded in Huon Peninsula corals., American Geophysical Union, Fall Meeting (San Francisco, USA, 1999.12) Invited.

Yokoyama, Y., K. Lambeck, P. De Deckker, P. Johnston and L. K. Fifield, Sea-level constraints on the termination of Last Glacial Maximum and global ice-volume variations., American Geophysical Union, Fall Meeting (San Francisco, USA, 1999.12)

Esat, T. M. and Y. Yokoyama, Rapid fluctuations in the Uranium Isotopic compositions of Oceans., American Geophysical Union, Fall Meeting (San Francisco, USA, 1999.12) Invited.

Fleming, K., P. Johnston, D. Zwartz and Y. Yokoyama, Defining the eustatic sea-level curve since the Last Glacial Maximum, European Geophysical Society, 22nd General Assembly (Vienna, Austria, 1997.4)

Yokoyama, Y., M. Nakada, J. Okuno, Y. Maeda and S. Nagaoka, Mid- to Late Holocene Sea-level Change and Hydro-Isostasy in Western Kyushu, Japan., Western Pacific Geophysics Meeting, American Geophysical Union (Brisbane, Australia, 1996.7)

ホーム論文・発表>国際学会発表アーカイブ