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Yasuhiro Yamanaka
Researcher at Hokkaido University
Publications - 150
Citations - 10273
Yasuhiro Yamanaka is an academic researcher from Hokkaido University. The author has contributed to research in topics: Phytoplankton & Global warming. The author has an hindex of 37, co-authored 148 publications receiving 9282 citations. Previous affiliations of Yasuhiro Yamanaka include Japan Agency for Marine-Earth Science and Technology & University of California, Los Angeles.
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Journal ArticleDOI
Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms
James C. Orr,Victoria J. Fabry,Olivier Aumont,Laurent Bopp,Scott C. Doney,Richard A. Feely,Anand Gnanadesikan,Nicolas Gruber,Akio Ishida,Fortunat Joos,Robert M. Key,Keith Lindsay,Ernst Maier-Reimer,Richard J. Matear,Patrick Monfray,Anne Mouchet,Raymond G. Najjar,Gian-Kasper Plattner,Keith B. Rodgers,Christopher L. Sabine,Jorge L. Sarmiento,Reiner Schlitzer,Richard D. Slater,I. Totterdell,Marie-France Weirig,Yasuhiro Yamanaka,Andrew Yool +26 more
TL;DR: 13 models of the ocean–carbon cycle are used to assess calcium carbonate saturation under the IS92a ‘business-as-usual’ scenario for future emissions of anthropogenic carbon dioxide and indicate that conditions detrimental to high-latitude ecosystems could develop within decades, not centuries as suggested previously.
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A comparison of global estimates of marine primary production from ocean color
Mary-Elena Carr,Marjorie A. M. Friedrichs,Marjorie A. M. Friedrichs,M. Schmeltz,Maki Noguchi Aita,David Antoine,Kevin R. Arrigo,Ichio Asanuma,Olivier Aumont,Richard T. Barber,Michael J. Behrenfeld,Robert R. Bidigare,Erik T. Buitenhuis,Janet W. Campbell,Áurea Maria Ciotti,Heidi M. Dierssen,Mark Dowell,John P. Dunne,Wayne E. Esaias,Bernard Gentili,Watson W. Gregg,Steve Groom,Nicolas Hoepffner,Joji Ishizaka,Takahiko Kameda,Corinne Le Quéré,Corinne Le Quéré,Steven E. Lohrenz,John Marra,Frédéric Mélin,Keith Moore,André Morel,Tasha E. Reddy,John P. Ryan,Michele Scardi,Timothy J Smyth,Kevin R. Turpie,Gavin H. Tilstone,Kirk Waters,Yasuhiro Yamanaka +39 more
TL;DR: The third primary production algorithm round robin (PPARR3) as discussed by the authors compares output from 24 models that estimate depth-integrated primary production from satellite measurements of ocean color, as well as seven general circulation models (GCMs) coupled with ecosystem or biogeochemical models.
Journal ArticleDOI
Evaluation of ocean carbon cycle models with data-based metrics
Katsumi Matsumoto,Jorge L. Sarmiento,Robert M. Key,Olivier Aumont,John L. Bullister,Ken Caldeira,J.-M. Campin,Scott C. Doney,Helge Drange,Jean-Claude Dutay,Michael J. Follows,Yongqi Gao,Anand Gnanadesikan,Nicolas Gruber,Akio Ishida,Fortunat Joos,Keith Lindsay,Ernst Maier-Reimer,John Marshall,Richard J. Matear,Patrick Monfray,Anne Mouchet,Raymond G. Najjar,Gian-Kasper Plattner,Reiner Schlitzer,Richard D. Slater,P. S. Swathi,I. Totterdell,Marie-France Weirig,Yasuhiro Yamanaka,Andrew Yool,James C. Orr +31 more
TL;DR: In this paper, the authors used radiocarbon and chlorofluorocarbon-11 data from the World Ocean Circulation Experiment (WOCE) to assess a suite of 19 ocean carbon cycle models.
Journal ArticleDOI
NEMURO—a lower trophic level model for the North Pacific marine ecosystem
Michio J. Kishi,Michio J. Kishi,Makoto Kashiwai,Daniel M. Ware,Bernard A. Megrey,David L. Eslinger,Francisco E. Werner,Maki Noguchi-Aita,Tomonori Azumaya,Masahiko Fujii,Masahiko Fujii,Shinji Hashimoto,Daji Huang,Hitoshi Iizumi,Yukimasa Ishida,Sukyung Kang,Gennady A. Kantakov,Hyun-Cheol Kim,Kosei Komatsu,Vadim V. Navrotsky,S. Lan Smith,Kazuaki Tadokoro,Kazuaki Tadokoro,Atsushi Tsuda,Orio Yamamura,Yasuhiro Yamanaka,Yasuhiro Yamanaka,Katsumi Yokouchi,Naoki Yoshie,Jing Zhang,Yury I. Zuenko,Vladimir I. Zvalinsky +31 more
TL;DR: The North Pacific Ecosystem Model for Understanding Regional Oceanography (NEMURO) as discussed by the authors is a lower trophic level ecosystem model for the North Pacific Ocean, which has eleven state variables: nitrate, ammonium, small and large phytoplankton biomass.
Journal ArticleDOI
Synoptic relationships between surface Chlorophyll- a and diagnostic pigments specific to phytoplankton functional types
Takafumi Hirata,Nick J. Hardman-Mountford,Robert J. W. Brewin,Robert J. W. Brewin,Jim Aiken,Ray Barlow,Koji Suzuki,Tomonori Isada,Evan A. Howell,Taketo Hashioka,M. Noguchi-Aita,M. Noguchi-Aita,Yasuhiro Yamanaka,Yasuhiro Yamanaka +13 more
TL;DR: Error-quantified, synoptic-scale relationships between chlorophyll-a (Chl-a) and phytoplankton pigment groups at the sea surface are presented to show that a community shift of phy toplankon at the basin and global scales is reflected by a change in Chl- a of the total community.