Recurring coastal polynya and sea ice extent in the northern part of Okhotsuk Sea

• Main Authors: Enomoto, H., Aota, M., Shirasawa, K., Takahashi, S., Kodama, Y., Ishikawa, M., Ikeda, M., Takatsuka, T., Takizawa, T., Ishikawa, N.
• Language: English
• Published: オホーツク氷海研究グループ
• Subjects: Okhotsk; okhotsk sea; Sea ice
• Online Access: https://kitami-it.repo.nii.ac.jp/record/7421/files/8650824-1.pdf

Thin ice area was observed using microwave radiometer SSM/I on board on Satellite DMSP. Recurring extent and close of coastal polynya was observed in the northwest part of Okhotsk Sea and its increased area derived from daily observations was accumulatedduring the winter. This accumulated advance of thin ice area can indicate a seasonal evolution of sea ice cover. By comparing with weather data in 1996, extent of thin ice area can introduce a sudden decrease of sea ice in spring. Therefore thin ice area is unstable and it affects both for growth and decay of sea ice area. application/pdf journal article