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Publications

Peer-reviewed papers


Watanabe, T. K., T. Watanabe, A. Yamazaki, M. Pfeiffer, D. Garbe-Schönberg, and M. R. Claereboudt (2017) Past summer upwelling events in the  Gulf of Oman derived from a coral geochemical record, Scientific Reports, 7, 4578, doi:10.1038/s41598-017-04865-5


Kajita, H., A. Yamazaki, T. K. Watanabe,  C. C. Wu, C. C. Shen, and T. Watanabe (2017) Holocene sea surface temperature variations recorded in corals from Kikai Island, Japan, Geochemical Journal, 54(4), e9-e14, doi:10.2343/geochemj.2.0482


Yamazaki, A., T. Watanabe, U. Tsunogai, F. Iwase, and H. Yamano (2016), A 150-year variation of the Kuroshio transport inferred from coral nitrogen isotope signature, Paleoceanography, 31, doi:10.1002/2015PA002880.


Mitsuguci, T., M. Hirota, Paleo Labo AMS Dating Group, A. Yamazaki, T. Watanabe, H. Yamano (2016), Post-bomb coral Δ14C record from Iki Island, Japan: possible evidence of oceanographic conditions on the northern East China Sea shelf, Geo-Marine Letters, doi:10.1127/ejm/2016/0028-2521


Yamazaki, A., T. Watanabe, U. Tsunogai, H. Hasegawa, and H. Yamano (2015), The coral δ15N record of terrestrial nitrate loading varies with river catchment land use, Coral Reefs, 34(1), 353-362. doi: 10.1007/s00338-014-1235-1  journal website


Watanabe, T., T. Kawamura, A. Yamazaki, M. Murayama, and H. Yamano (2014), A 106-year monthly coral record reveals that the East Asian summer monsoon modulates winter PDO variability, Geophysical Research Letters, 41, 3609-3614, doi: 10.1002/2014GL060037 journal website


Inoue, M., D. Ishikawa, T. Miyaji, A. Yamazaki,  A. Suzuki,  H. Yamano, H. Kawahata, T. Watanabe (2014) Evaluation of Mn and Fe in coral skeletons (Porites spp.) as proxies for sediment loading and reconstruction of 50 yrs of land use on Ishigaki Island, Japan, Coral Reefs, 33(2), 363-373, doi:10.1007/s00338-014-1128-3. journal website


Yamazaki, A., T. Watanabe, N. Takahata, Y. Sano, and U. Tsunogai (2013) Nitrogen isotopes in intra-crystal coralline aragonites, Chemical Geology, 351, 276–280, doi:10.1016/j.chemgeo.2013.05.024. journal website  PDF


Yamazaki, A., T. Watanabe, and U. Tsunogai (2011) δ15N in reef coral skeletons as a proxy of tropical nutrient dynamics, Geophys. Res. Lett., 38, L19605, doi:10.1029/2011GL049053.  journal website   PDF

Yamazaki, A., T. Watanabe, N. Ogawa, N. Ohkouchi, K. Shirai, M. Toratani, and M. Uematsu (2011) Seasonal variations in the nitrogen isotope composition of Okinotori coral in the tropical Western Pacific: A new proxy for marine nitrate dynamics, J. Geophys. Res., 116, G04005, doi:10.1029/2011JG001697. journal website   PDF


Yamazaki, A., T. Watanabe, K. Sowa, S. Nakachi, H. Yamano, and F. Iwase (2009) Reconstructing palaeoenvironments of temperate regions based on high latitude corals at Tatsukushi Bay in Japan, Journal of the Japanese Coral Reef Society, 11, 91-107. in Japanese journal website   PDF


Non-reviewed papers

Yamazaki, A., T. Watanabe (2016) Are carbonate production and oceanic nutrient driving the variation of atmospheric carbon dioxide concentration?, Kaiyo Monthly, special volume 56, 159-167. in Japanese

Watanabe, T.K., T. Watanabe, A. Yamazaki, Miriam Pfeiffer, Dieter Garbe-Schönberg, Michel R Claereboudt (2016) High-resolution climate reconstruction in coral skeletons from Oman,  Kaiyo Monthly, special volume 56, 136-145. in Japanese

Ito, S. T. Watanabe, A. Yamazaki, T.E. Putra, Y. Nishimura (2016) Seismic events recorded in coral skeletons, Kaiyo Monthly, special volume 56, 60-71. in Japanese


Komagoe, T., T. Watanabe, K. Shirai, A. Yamazaki, M. Uematsu (2016) High-time resolution analysis for palaeo

environments using giant clam shell Elongate giant clam Tridacna maxima shell reveals typhoon events in Okinotori Island, Japan, Kaiyo Monthly, special volume 56, 80-93. in Japanese


Presentations

A. Yamazaki, S. Hetzinger, J. von Reumont, U. Tsunogai, T. Watanabe, δ15N of Caribbean coral skeletons: Implications for controlling factor of North Atlantic nitrogen fixation, 2014 Ocean Sciences Meeting, Hawaii, USA, 26th February 2014, Poster presentation


A. Yamazaki, T. Watanabe, U. Tsunogai, F. Iwase, H. Yamano, A 150-year variation of Kuroshio transport detected by the nitrate δ15N records in coral skeletons, Goldschmidt conference 2013, Florence, Italy, 28th August 2013, Oral presentation


A. Yamazaki, T. Watanabe, U. Tsunogai, F. Iwase, H. Yamano, A 150-year coral record reveals intensification of oligotrophic Kuroshio transport to the temperate North Pacific, 3rd International Sclerochronology Conference, Bangor, Wales, UK, 19th May 2013, Oral presentation


A. Yamazaki, T. Watanabe, U. Tsunogai, Nitrogen isotope of coral skeletons as a proxy for marine nitrate sources in coral reefs, 12th International Coral Reef Symposium, Cairns, Australia, 11 July 2012, Poster presentation



T. Watanabe, A. Yamazaki, T. Kawamura, J. Isasa, T. Nakamura, K. Sowa, F. Iwase, K. Nomura, K. Sugihara, O. Abe, T. Sakamoto, M. Murayama, H. Yamano, Effect of environmental change on Porites growth during the last 100 years, 12th International Coral Reef Symposium, Cairns, Australia, 13 July 2012, Oral presentation


A. Yamazaki, T. Watanabe, U. Tsunogai, Application of coral 15N proxy: interannual variability of water mass in Tatsukushi Bay due to Kuroshio volume changes, JpGU International Symposium 2012, Makuhari, Japan, May 2012, Oral presentation 


A. Yamazaki, T. Watanabe, U. Tsunogai, Nitrogen isotope of coral skeletons: A new proxy for nitrogenous nutrients in oligotrophic oceans, 2nd International Geoscience symposium, Keelung, Taiwan, March 2012, Oral presentation


A. Yamazaki, T. Watanabe, U. Tsunogai, Nitrogen isotope of coral skeletons: A new proxy for nitrogenous nutrients in oligotrophic oceans, AGU fall meeting 2011, San Francisco, December 2011, Poster presentation


A. Yamazaki, T. Watanabe, U. Tsunogai, Nitrogen isotope of coral skeletons: A new proxy for nitrogenous nutrients in subtropical and tropical ocean, JpGU International Symposium 2011, Makuhari, Japan, May 2011, Oral presentation, Student Outstanding Presentation Award (Biogeosciences)


A. Yamazaki, T. Watanabe,  N. Ogawa, N. Ohkouchi, , K. Shirai, M. Toratani, and M. Uematsu,  Seasonal variations in nitrogen isotopic composition from Okinotori coral in the tropical Western Pacific: A new proxy for marine nitrate dynamics, EGU General Assembly 2010, Vienna, Austria, May 2010, Poster presentation


A. Yamazaki, T. Watanabe, T. Kawashima, N. Ohkouchi, N. Ogawa, M. Uematsu, Seasonal variation of d15N in coral skeletons. 11th International Coral Reef Symposium, Fort Lauderdale, Florida, July 2008, Poster presentation