Relationships between continental Ice sheet retreat events recorded in the Arctic Ocean floor and their global climate changes

• Project/Area Number: 22310014
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: National Institute for Environmental Studies
• Principal Investigator: UCHIDA Masao 独立行政法人国立環境研究所, 環境計測研究センター, 主任研究員 (50344289)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000); Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2010: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
• Keywords: 北極海 / 大陸氷床 / ダンスガード / オシュガーサイクル / 炭酸塩 / 有機炭素 / ノースウインド海嶺 / ミランコビッチサイクル / 古気候 / 海洋循環 / 生物生産 / 古水温 / バイオマーカー

Research Abstract

Knowledge on past variability of sedimentary organic carbon in the Arctic Ocean is important to assess natural carbon cycling and transport processes related to global climate changes. However, the late Pleistocene oceanographic history of the Arctic is still poorly understood. In the present study we show sedimentary records of total organic carbon (TOC), CaCO3, benthic foraminiferal ∂18O and the coarse grain size fraction from a piston core recovered from the northern Northwind Ridge in the far western Arctic Ocean, a region potentially sensitively responding to past variability in surface current regimes and sedimentary processes such as coastal erosion

Research Products

• [Journal Article] Abrupt changes of intermediate water properties on the northeastern slope of the Bering Sea during the last glacial and deglacial period (2012)
  • Author(s): Rella S. F., Tada R., Nakashima K., Ikehara M., Itaki T., Ohkushi K., Sakamoto T., Harada N., Uchida M
  • Journal Title: Paleoceanography Volume: 27 Issue: 3 Pages: 1-18
  • DOI: 10.1029/2011pa002205
  • Peer Reviewed
• [Journal Article] Biogeochemical processes involving acetate in subseafloor sediments from the Bering Sea shelf break (2012)
  • Author(s): Ijiri, A., Harada, N., Hirota, A., Tsunogai, U., Ogawa, N.O., Itaki, T., Khim, B.-K., Uchida, M.
  • Journal Title: Organic Geochemistry Volume: 48 Pages: 47-55
  • DOI: 10.1016/j.orggeochem.2012.04.004
  • Peer Reviewed
• [Journal Article] Millennial-scale variations of thelate Pleistocene radiolarians in the Bering Searelated to environments in shallow and deep waters (2012)
  • Author(s): Itaki, T., Kim, S., Rella, S., Uchida, M., Tada, R., Khim, B. K.
  • Journal Title: Deep Sea Res. II Volume: 61-64 Pages: 127-144
  • DOI: 10.1016/j.dsr2.2011.03.002
  • Peer Reviewed
• [Journal Article] The effect of the feedback cycle between the soil organic carbon and the soil hydrologic and thermal dynamics (2012)
  • Author(s): Mori K., Ise Takeshi, Kondo M., Kim Yongwon, Enomoto Hiroyuki, Uchida M
  • Journal Title: Open Journal of Ecology Volume: 2 (2) Issue: 02 Pages: 90-95
  • DOI: 10.4236/oje.2012.22011
  • Peer Reviewed
• [Journal Article] Sedimentary organic matter and carbonate variations in the Chukchi Borderland in association with ice sheet and ocean-atmosphere dynamics over the last 155 kyr (2011)
  • Author(s): Stephan R., Uchida M
  • Journal Title: Biogeosciences Volume: 8 Issue: 12 Pages: 1-9
  • DOI: 10.5194/bg-8-3545-2011
  • Peer Reviewed
• [Journal Article] Quick Recovery of Carbon Dioxide Exchanges in a Burned Black Spruce Forest in Interior Alaska (2011)
  • Author(s): Iwata H., Uchida M., 他
  • Journal Title: SOLA Volume: 7 Pages: 105-108
  • DOI: 10.2151/sola.2011-027
  • NAID: 130004940938
  • ISSN: 1349-6476
  • Peer Reviewed
• [Journal Article] Millennial-scale paleoceanographic events and implication for the intermediate-water ventilation in the northern slope area of the Bering Sea during the last 71 kyrs (2011)
  • Author(s): Kim S., Khim B.K., Uchida M., Itaki T., Tada R
  • Journal Title: Global and Planetary Change Volume: 79 (1-2) Issue: 1-2 Pages: 89-98
  • DOI: 10.1016/j.gloplacha.2011.08.004
  • Peer Reviewed
• [Journal Article] isotope composition of dissolved humic and fulvic acids in the Tokachi River system (2011)
  • Author(s): Nagao S., Kodama H., Aramaki T., Fujitake N., Uchida M., Shibata Y
  • Journal Title: Radiation Protection Dosimetry Volume: 146 (1-3) Issue: 7-8 Pages: 322-325
  • DOI: 10.1016/j.nimb.2009.10.108
  • Peer Reviewed
• [Journal Article] Radiocarbon (14C) diurnal variations in fine particles at sites downwind from Tokyo. Japan in summer (2011)
  • Author(s): Fushimi A., Wagai R., Uchida M., Hasegawa S., Takahashi K., Kondo M., Hirabayashi M., Morino Y., Shibata Y., Ohara T., Kobayashi S., Tanabe K
  • Journal Title: Environmental Science and Technology Volume: 45 (16) Issue: 16 Pages: 6784-6792
  • DOI: 10.1021/es201400p
  • Peer Reviewed
• [Journal Article] Natural C-14 provides new data for stream food-web studies: a comparison with C-13 in multiple stream habitats (2011)
  • Author(s): Ishikawa N.F., Uchida M., Shibata Y., Ichiro
  • Journal Title: Marine and Freshwater Research Volume: 3 Issue: 7-8 Pages: 210-217
  • DOI: 10.1016/j.nimb.2009.10.127
  • Peer Reviewed
• [Journal Article] Sedimentary organic matter variations in the Chukchi Borderland over the last 155 kyr. (2011)
  • Author(s): Rella S., Uchida M
  • Journal Title: Biogeosciences Discussions Volume: 8 Pages: 2259-2280
  • Peer Reviewed
• [Journal Article] High organic carbon deposition in the northern margin of the Aleutian Basin (Bering Sea) before the last deglaciation. (2010)
  • Author(s): Khim B-K., Kim S., Uchida M., Itaki T
  • Journal Title: Ocean science journal Volume: 45(4) Pages: 203-211
  • Peer Reviewed
• [Presentation] sedimentary organic matter and carbonate variations in the Chukchi Borderland in association with ice sheet and Ocean .atmosphere dynamics over the last 155 KYR (2013)
  • Author(s): Rella S. F. , Uchida M
  • Organizer: Third International Symposium on the Arctic Research
  • Place of Presentation: Tokyo
• [Presentation] Sedimentary organic matter and carbonate variations in the Chukchi Borderland in association with ice sheet and ocean-atmosphere dynamics over the last 155 kyr (2012)
  • Author(s): Rella S. F., Uchida, M
  • Organizer: AGU Fall meeting 2012
  • Place of Presentation: San Francisco, UAS
• [Presentation] Sedimentary organic matter and carbonate variations in the Chukchi Borderland in association with ice sheet and ocean-atmosphere dynamics over the last 155 kyr. (2012)
  • Author(s): Rella S. F.
  • Organizer: AGU Fall meeting 2012
  • Place of Presentation: サンフランシスコ
• [Presentation] Sedimentary organic matter variations in the Chukchi Borderland since the last interglacial period (2011)
  • Author(s): Rella S., Uchida M
  • Organizer: 2011 ARCTIC SCIENCE SUMMIT WEEK
  • Place of Presentation: Seoul, KOREA
  • Year and Date: 2011-04-01
• [Presentation] Sedimentary organic matter variations in the Chukchi Borderland since the last in terglacial period. (2011)
  • Author(s): Rella S., Uchida M.
  • Organizer: Arctic Sci.Summit Week 2011
  • Place of Presentation: COEX convention center (Seoul)
  • Year and Date: 2011-03-29
• [Presentation] Recent advances of radiocarbon measurements at NIES TERRA (2011)
  • Author(s): Uchida M., Kondo M., Matsuda A., Minoura Y., Shibata Y
  • Organizer: Accelerator Mass Spectrometry Conference
  • Place of Presentation: Wellington, New Zealand
• [Presentation] The trans-Arctic water 14C sections from Mirai and NABOS cruises: reconstruction of surface-mid-deepwater ventilation ages and their comparison of past 14C inventory data (2011)
  • Author(s): Uchida M., Kumamoto Y., Polyakov I, Utsumi M., Kim Y., Rozman P., Murata M., Shibata Y
  • Organizer: The 4th East Asia AMS Symposium
  • Place of Presentation: Tokyo
• [Presentation] Multibeam bathymetric and sediment profiler evidences for ice grounding and crater on the Chukchi and Beaufort borderland (2011)
  • Author(s): Uchida M., Shibahara A
  • Organizer: Arctic Ocean. The XVIII INQUA-Congress
  • Place of Presentation: Bern, Switzerland
• [Presentation] Evidence of Heterotrophic Microbial Decomposition of Preaged Carbon in Arctic soil; Insights from molecular level natural radiocarbon analysis of phospholipid fatty acids (PLFAs) (2011)
  • Author(s): Uchida M., Kondo M., Uchida M., Takahashi Y., Utsumi M., Kumata H., Shibata Y
  • Organizer: The 10th Ny-Alesund Seminar
  • Place of Presentation: Kjeller, Norway
• [Presentation] Vertical profile and components of marine planktonic archaea in the Pacific sector of the Arctic Oceean (2011)
  • Author(s): Akiyama S., Amano S. C., Uchida M., Utsumi M
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, UAS
• [Presentation] Distribution and structure of pranktonic Archaea in the Arctic Ocean using 2008 – 2010 R/V Mirai cruise samples (2011)
  • Author(s): Amano S. C., Akiyama S., Uchida M., Utsumi M
  • Organizer: AGU Fall Meeting 2011
  • Place of Presentation: San Francisco, UAS
• [Presentation] Radiocarbon Signature of Soil Organic Carbon in Tundra and Boreal Forests, Northern Alaska (2011)
  • Author(s): Kondo M., Uchida M., Kim Y., Utsumi M., Adachi M., Shibata Y
  • Organizer: The 4th East Asia AMS Symposium
  • Place of Presentation: Tokyo
• [Presentation] Northwest Pacific mid-depth ventilation changes during the Holocene and their link to global climate changes (2011)
  • Author(s): Rella S., Uchida M
  • Organizer: Accelerator Mass Spectrometry Conference 2011
  • Place of Presentation: Wellington, New Zealand
• [Presentation] Radiocarbon Dating of Peat Archives Using Plant Cellulose for the Reconstruction of Past Environmental Changes (2011)
  • Author(s): Uchida M., Kondo M., Minoura K., Shibata Y
  • Organizer: Accelerator Mass Spectrometry Conference 2011
  • Place of Presentation: Wellington, New Zealand
• [Presentation] Reconstruction of Alaskan Arctic environmental changes for past 1 ka using δ 13C of peat cellulose and their 14C wiggle-match dating (2011)
  • Author(s): Uchida M., Kondo M., Yoshikawa K., Nomoto S., Utsumi M
  • Organizer: AGU Fall Meeting 2011
  • Place of Presentation: San Francisco, UAS
• [Presentation] Northwest Pacific mid-depth ventilation changes during the Holocene and their implications for the atmosphere-ocean carbon cycle (2011)
  • Author(s): Rella S., Uchida M
  • Organizer: XVIII. INQUA BERN 2011
  • Place of Presentation: Bern, Switzerland
• [Presentation] Sedimentary organic matter variations in the Chukchi Borderland since the last interglacial period (2011)
  • Author(s): Rella S., Uchida M
  • Organizer: Japan Geoscience Union Meeting 2011
  • Place of Presentation: Makuhari
• [Presentation] Sedimentary organic matter variations in the Chukchi Borderland since the last deglaciation. (2010)
  • Author(s): Rella S., Uchida M.
  • Organizer: 2nd Int.Symp.Arctic Res.
  • Place of Presentation: 一橋記念講堂(東京都)
  • Year and Date: 2010-12-08