Monitoring of sea ice in far east Russia

Koichi Kawano, Jun-Ichi Kudoh

Research output: Contribution to conferencePaperpeer-review

Abstract

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.

Original languageEnglish
Pages4379-4381
Number of pages3
Publication statusPublished - 2004 Dec 1
Event2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004 - Anchorage, AK, United States
Duration: 2004 Sep 202004 Sep 24

Other

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

Keywords

  • AVHRR
  • Component
  • Four-dimensional histogram
  • Sea ice

ASJC Scopus subject areas

  • Geology
  • Software

Fingerprint

Dive into the research topics of 'Monitoring of sea ice in far east Russia'. Together they form a unique fingerprint.

Cite this