DMSP/OLS 영상에서 관측한 동해 야간조업어선의 분포특성 KCI

Title
DMSP/OLS 영상에서 관측한 동해 야간조업어선의 분포특성
Alternative Title
Distribution of Fishing Boats at Night in the East Sea Derived from DMSP/OLS Imagery
Author(s)
김상우; 조규대; 김영섭; 최윤선; 안유환; 김용승
Publication Year
2005-10
Abstract
Monthly distributions of fishing boats at night in the East Sea are described, using defense meteorological satellite program (DMSP)/operational linescan system (OLS) images and common squid (Todarodes pacificus) catches data. We also estimated temperature in 50m, which is main catch depth of the squid, by MCSST (multi-channel sea surface temperature). We examined DMSP/OLS, MCSST and other observation data from 1993 to 2000. We assumed that squid were caught in areas where fishing boats were located. Fishing boats at night appeared only near the Korea/Tsushima Strait from January to March. Fishing boats moved to the northward from April to Jun, distribution of fishing boats in spring appeared greater than those in winter. In summer (July-September), center of fishing grounds was formed near the Uleung Island in the south east coast of Korea. The north-south distribution range of fishing boats in October appeared to be greater than that in other months. In particular, we estimated main season of squid catches based on distribution range reflecting the number of fishing boats of north-south and east-west directions from September to December. Relationship between satellite estimate SST and in situ SST showed high correlation (0.91). The correlation between the SST and 50m depth temperature, estimated based on the satellite SST, was relatively high in February, April and October.
ISSN
0374-8111
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5015
Bibliographic Citation
한국수산과학회지, v.38, no.5, pp.323 - 330, 2005
Publisher
한국수산과학회
Keywords
Fishing boat at night; Todarodes pacificus; DMSP/OLS; MCSST; East Sea
Type
Article
Publisher
한국수산과학회
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