Direct evaluation of sea-ice production in the Sea of Okhotsk based on in sites ice-thickness observations
| Project/Area Number |
17540405
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Meteorology/Physical oceanography/Hydrology
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
FUKAMACHI Yasushi Hokkaido University, Institute of Low Temperature Science, Assi. Prof. (20250508)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
木村 詞明 北海道大学, 低温科学研究所, 博士研究員 (20374647)
|
|---|
| Project Period (FY) |
2005 – 2007
|
| Project Status |
Completed (Fiscal Year 2007)
|
| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2006: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2005: ¥1,300,000 (Direct Cost: ¥1,300,000)
|
|---|
| Keywords | sea ice / ice thickness / mooring observation / The Sea of Okhotsk / 海氷物理・陸水学 / 地球観測 / 海洋物理・陸水学 |
|---|
| Research Abstract |
Sea-ice mooring data obtained off Yubetsu in the Hokkaido coastal region during the winters of 1999-2001 revealed the mean draft of 0.60m and the high deformed ice ratio of 80%. These results were published in Fukamachi et al. (2006, Journal of Geophysical Research). Also, sea-ice mooring data obtained off Mombetsu during the winter of 2005-06 along with the sediment-trap data collected by the National Institute for Environmental Studies indicated that the quality and quantity of sinking biogenic and lithogenic materials varied with the sea-ice cover. These results were published in Hiwatari et al. (2008, Polar Science).
Sea-ice and oceanic mooring data obtained off the northern Sakhalin during the winter of 2002-03 were analyzed. These data revealed that the mean draft (1.05m) was significantly larger than that off Hokkaido, periods of thin- (<0.2m) and thick-ice (>5m) occurred with offshore and onshore sea-ice velocities, sea-water salinity increased during the thin-ice periods resulting the production of dense shelf water with potential density exceeding 26.7, the observed water-salinity increase is well explained by the brine rejection associated with sea-ice production based on the heat-flux calculation among the atmosphere, sea ice, and ocean. These results were summarized in Fukamachi et al. submitted to Continental Shelf Research.
|
Report
(4 results)
Research Products
(31 results)
-
-
-
[Journal Article] Hiwatari, T., K. Shirasawa, Y. Fukamachi, R. Nagata, T. Koizumi, H. Koshikawa, and K. Kohata2008
Author(s)
Hiwatari, T., K. Shirasawa, Y. Fukamachi, R. Nagata, T. Koizumi, H. Koshikawa, and K. Kohata
-
Journal Title
Polar Science 2(in press)
Related Report
Peer Reviewed
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] オホーツク海サハリン北部沖における海氷厚の係留観測2008
Author(s)
深町康, 白澤邦男, 大島慶一郎, Anatoliy Polomoshnov, Ervin Kalinin, Humfrey Melling, 水田元太, 若土正暁
Organizer
2008年度日本海洋学会春季大会
Place of Presentation
東京・東京海洋大学
Year and Date
2008-03-27
Description
「研究成果報告書概要(和文)」より
Related Report
-
-
-
-
-
-
-
-
-
-
-
-
-
-
