Monitoring of sea ice in far east Russia

Koichi Kawano, Jun-Ichi Kudoh

研究成果: Paper査読

抄録

In Far East Russia, the Sea of Okhotsk is covered by sea ice in winter every year. The Amur River plays an important role of generating sea ice. Sea ice goes south by the monsoon. In this paper, we present a four-dimensional histogram method and a threshold method for detecting the sea ice pixels of NOAA AVHRR images. We used 699 scenes from February to March for five years from 1995 to 1999. We chose 179 scenes to create the four-dimensional histogram. We applied the four-dimensional histogram to detect the sea ice area of the Sakhalin region. As the result of applying the presented method, thin ice was detectable. However, thick ice was undetectable. Thin ice is very important because it is generated along the coast line of the continent, and it has a great affect on the ecosystem. Thick ice is detectable by using the threshold method. We confirmed that clouds and sea ice were distinguishable in our method by comparing the detection results of the presented method with that of the oceanography researcher. We will demonstrate effectiveness of the presented method by monitoring the sea ice area for several years.

本文言語English
ページ4379-4381
ページ数3
出版ステータスPublished - 2004 12 1
イベント2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004 - Anchorage, AK, United States
継続期間: 2004 9 202004 9 24

Other

Other2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004
国/地域United States
CityAnchorage, AK
Period04/9/2004/9/24

ASJC Scopus subject areas

  • 地質学
  • ソフトウェア

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