Analysis on long term variations of seasonal sea ice extent and its climatological interpretation

季节性海冰范围的长期变化分析及其气候学解释

• 批准号: 08640539
• 负责人: ENOMOTO Hiroyuki
• 金额: $ 1.34万
• 依托单位: Kitami Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08640539/
• 关键词: Sea ice; Climatic change; cryosphere; satellite Remote Sensing; Sea of Okhotsk; Antarctic Arctic; sea ice; climatic change; okhotsk Sea; 北極・南極; 雪氷園

Sea ice fluctuations in the sea of Okhotsk was investigated by using the daily sea ice map. A new ice map was made to indicate thin/thick sea ice coverage. The algorithm for thin ice observations was developed by the University, of Washington, NASA and also by ourselves. Sea ice extent seems to be affected by the early winter conditions. Seasonal trends was observed in the extreme year ; cold/warm, then sea ice extent showed faster/later trend in the corresponding winter.Daily polynya fluctuations were investigated. The accumulated advances of polynya area in winter reflect the variation of maximum sea ice area of the corresponding winter.An isolated sea ice area was observed in the warmer winter, 1995196 and 1996/97. Its distribution and stability are similar to the Odden ice pattern in the Greenland Sea. This phenomena was observed only in the two years in the recent 10-years data.

利用日海冰图对鄂霍次克海的海冰变化进行了研究。制作了一张新的冰图，以显示薄/厚的海冰覆盖范围。薄冰观测的算法是由华盛顿大学、美国宇航局和我们自己开发的。海冰的范围似乎受到初冬条件的影响。在极端年份观测到季节变化趋势，在相应的冬季，冷/暖，然后海冰范围表现出快/晚的趋势。冰间湖面积的累积增长反映了相应冬季最大海冰面积的变化，在暖冬、1995 - 1996和1996 - 1997年，观测到了一个孤立的海冰面积。其分布和稳定性与格陵兰海的奥登冰型相似。在最近10年的数据中，只有两年观察到这种现象。

项目成果

H.Enomoto: "Interannual variability of sea ice conditions in Syowa Station sector deduced from DMSP SSM/I data" Proc.NIPR Symp.Polar Meteorol.Glaciol.,. 10. 119-126 (1996)

H.Enomoto：“从 DMSP SSM/I 数据推导出昭和站扇区海冰状况的年际变化”Proc.NIPR Symp.Polar Meteorol.Glaciol.,。

Shirasaki,K.,H.Enomoto,K.Tateyama,H.Warashina,A.Watanabe: "Observation of sea ice conditions using visible and near-intrared channels in MOS-I/MESSR and ADEOS/AVNIR" Polar Meteorol,Glaciol.12. 86-96 (1998)

Shirasaki,K.,H.Enomoto,K.Tateyama,H.Warashina,A.Watanabe：“使用 MOS-I/MESSR 和 ADEOS/AVNIR 中的可见和近内通道观察海冰状况”极地 Meteorol，Glaciol。

Enomoto,H.: "Observation of thin sea ice area in the Okhotsk Sea and impact for climatological study"Jour.of the Remote Sensing Society of Japan. 16. 100-111 (1996)

Enomoto,H.：“鄂霍次克海薄海冰区的观测及其对气候学研究的影响”日本遥感学会杂志。

H.Enomoto: "Observation of thin seaice area in the Okhotsk Sea and Impacts for Climatological Study" 日本リモートセンシング学会誌. 16・2. 14-25 (1996)

H.Enomoto：“鄂霍次克海薄海冰区的观测及其对气候研究的影响”日本遥感学会杂志16・2（1996）。

Shirasaki, K.et al.: "Observation of sea ice conditions using visible and near-infrared channels in MOS-1/MESSR and ADEOS/AVNIR." Polar Meteorol.Glaciol. 12. 86-96 (1998)

Shirasaki, K.等人：“使用 MOS-1/MESSR 和 ADEOS/AVNIR 中的可见光和近红外通道观察海冰状况。”