Formation process and quantitative estimation of sea ice production in an Antarctic coastal polynya

2013 Fiscal Year Final Research Report

• Project/Area Number: 24810030
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Environmental dynamic analysis
• Research Institution: National Institute of Polar Research
• Principal Investigator: TAMURA Takeshi 国立極地研究所, 研究教育系, 助教 (40451413)
• Project Period (FY): 2012-08-31 – 2014-03-31
• Keywords: 極地 / リモートセンシング / 気候変動 / 海洋物理・陸水学 / 環境変動

Research Abstract

Our results from in-situ data obtained during the Australian-led international Antarctic sea ice experiment in September-October 2012 show the potential to contribute to the improvement of sea ice thickness algorithm and fast ice detection algorithm. By the improvement of sea ice thickness algorithm, sea ice production estimation method could be more accurate.

Research Products

• [Journal Article] Widespread freshening in the seasonal ice zone near 140E off the Adelie Land Coast, Antarctica, from 1994 to 2012 (2013)
  • Author(s): Aoki, S., Y.Kitade, K.Shimada, K.I.Ohshima, T.Tamura, C.C.Bajish, M.Moteki, and S.R.Rintoul
  • Journal Title: Journal of Geophysical Research Volume: 118(11) Pages: 6046-6063
  • DOI: 10.1002/2013JC009009
  • Peer Reviewed
• [Journal Article] Glacier tongue calving reduced dense water formation and enhanced carbon uptake (2013)
  • Author(s): Shadwick, E.H., S.R.Rintoul, B.Tilbrook, G.D.Williams, N.Young, H.Marchant, J.Smith, A.D.Fraser, and T.Tamura
  • Journal Title: Geophysical Research Letters Volume: 40(5) Pages: 904-909
  • DOI: 10.1002/grl.50178
  • Peer Reviewed
• [Journal Article] Antarctic Bottom Water production by intense sea-ice formation in the Cape Darnley Polynya (2013)
  • Author(s): Ohshima, K.I., Y.Fukamachi, G.D.Williams, S.Nihashi, F.Roquet, Y.Kitade, T.Tamura, D.Hirano, L.Herraiz-Borreguero, I.Field, M.Hindell, S.Aoki, and M.Wakatsuchi
  • Journal Title: Nature Geoscience Volume: 6(3) Pages: 235-240
  • DOI: 10.1038/ngeo1738
  • Peer Reviewed
• [Journal Article] Estimation of thin ice thickness from AMSR-E data in the Chukchi Sea (2013)
  • Author(s): Iwamoto, K., K.I.Ohshima, T.Tamura, and S.Nihashi
  • Journal Title: International Journal of Remote Sensing Volume: 34(2) Pages: 468-489
  • DOI: 10.1080/01431161.2012.712229
  • Peer Reviewed
• [Journal Article] Mapping of sea ice production in the Arctic Ocean using AMSR-E thin ice thickness algorithm (2013)
  • Author(s): Iwamoto, K., K.I.Ohshima, and T.Tamura
  • Journal Title: Proceedings of the 28th International Symposium on Okhotsk Sea & Sea Ice 2013, Mombetsu, Japan Pages: 208-211
• [Journal Article] Potential regime shift in decreased sea ice production after the Mertz Glacier calving (2012)
  • Author(s): Tamura, T., G.D.Williams, A.D.Fraser, and K.I.Ohshima
  • Journal Title: Nature Communications Volume: 3 Pages: 826
  • DOI: 10.1038/ncomms1820
  • Peer Reviewed
• [Presentation] The changing icescape about the Mertz Glacier polynya, East Antarctica, and its impacts (2014)
  • Author(s): Young, N.W., A.D.Fraser, J.Lieser, R.Massom, S.Rintoul, T.Tamura, and G.D.Williams
  • Organizer: The 2013 European Space Agency Living Planet Symposium
  • Place of Presentation: Edinburgh, UK (Poster)
  • Year and Date: 20140909-13
• [Presentation] Helicopter-borne observation with portable microwave radiometer in the Southern Ocean and the Sea of Okhotsk (2014)
  • Author(s): Tamura, T., K.I.Ohshima, J.L.Lieser, T.Toyota, K.Tateyama, D.Nomura, K.Nakata, A.D.Fraser, P.Jansen, K.Newbery, R.A.Massom, and S.Ushio
  • Organizer: IGS International Symposium on Sea Ice in a Changing Environment
  • Place of Presentation: Hobart, Australia (Poster)
  • Year and Date: 20140310-14
• [Presentation] Bromoform emission over the Antarctic sea ice (2014)
  • Author(s): Nomura, D., A.Ooki, G.S.Dieckmann, E.Damm, K.M.Meiners, and T.Tamura
  • Organizer: IGS International Symposium on Sea Ice in a Changing Environment
  • Place of Presentation: Hobart, Australia (Poster)
  • Year and Date: 20140310-14
• [Presentation] Variability mechanism and ice production budget of the Ross Iceshelf Polynya in the Antarctica (2014)
  • Author(s): Nakata, K., K.I.Ohshima, S.Nihashi, N.Kimura, and T.Tamura
  • Organizer: IGS International Symposium on Sea Ice in a Changing Environment
  • Place of Presentation: Hobart, Australia
  • Year and Date: 20140310-14
• [Presentation] Distribution and interannual variability of sea-ice thickness in the pack-ice zone off Lutzow-Holm Bay, Antarctica (2014)
  • Author(s): Sugimoto, F., H.Shimoda, D.Simizu, S.Uto, K.Tateyama, S.Hoshino, T.Ozeki, T.Tamura, Y.Fukamachi, S.Ushio, and K.I.Ohshima
  • Organizer: IGS International Symposium on Sea Ice in a Changing Environment
  • Place of Presentation: Hobart, Australia (Poster)
  • Year and Date: 20140310-14
• [Presentation] Sea ice CO2 flux in the Southern Ocean during mid-winter and early spring (2014)
  • Author(s): Nomura, D., B.Delille, G.S.Dieckmann, J.Tison, K.M.Meiners, M.A.Granskog, and T.Tamura
  • Organizer: IGS International Symposium on Sea Ice in a Changing Environment
  • Place of Presentation: Hobart, Australia
  • Year and Date: 20140310-14
• [Presentation] ヘリ搭載型マイクロ波放射計を用いた南大洋・オホーツク海での海氷観測 (2013)
  • Author(s): 田村岳史,大島慶一郎, Jan L.Lieser,豊田威信,舘山一孝,野村大樹,中田和輝, Alexander D.Fraser, Peter Jansen, Kym Newbery, Robert A.Massom,牛尾収輝
  • Organizer: 第4回極域科学シンポジウム
  • Place of Presentation: 国立極地研究所
  • Year and Date: 20131112-15
• [Presentation] Mapping of sea ice production in the Arctic Ocean using AMSR-E thin ice thickness algorithm (2013)
  • Author(s): Iwamoto, K., K.I.Ohshima, and T.Tamura
  • Organizer: The 28th International Symposium on Okhotsk Sea & Sea Ice 2013
  • Place of Presentation: Mombetsu, Japan
  • Year and Date: 20130217-21
• [Presentation] Properties of Antarctic Bottom Water observed off Vincennes Bay (2012)
  • Author(s): Kitade, Y., K.Shimada, T.Tamura, L.Cheng, Y.Fukamachi, S.Aoki, S.Ushio, K.I.Ohshima
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA (Poster)
  • Year and Date: 20121203-07
• [Presentation] New findings of Antarctic Bottom Water : Ongoing warming/freshening and a discovered AABW source (2012)
  • Author(s): Ohshima, K.I., Y.Fukamachi, S.Aoki, T.Tamura, and G.D.Williams
  • Organizer: The Third Symposium on Polar Science, Multidiciplinary session "Late Cenozoic Environmental Changes in Antarctic Cryosphere : Perspectives from Sea, Land, and Ice Sheets"
  • Place of Presentation: Tachikawa, Japan
  • Year and Date: 20121126-30
• [Remarks] ①南極氷河の大崩壊で海洋のCO2吸収量が倍増～地球規模の気候システムにも影響を与える南極底層水の生成量が大幅減少～ (2013年3月15日:国立極 地研究所) プレスリリース
  • URL: http://www.nipr.ac.jp/info/notice/20130315-1.html
• [Remarks] ②南極氷河の崩壊により底層水生成量が大幅に減少～地球規模の海洋大循環や気候にも影響の恐れ～ (2012年5月9日:国立極地 研究所) プレスリリース
  • URL: http://www.nipr.ac.jp/info/notice/20120509.html