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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41572

Title: Surface layer biomass distribution characteristics using optical and hydroacoustic remote sensing methods in the waters of northeastern Taiwan.
Authors: Liao, Cheng-Hsin;Kuo-Tien Lee;Ming-Anne Lee;Hsueh-Jung Lu,
Contributors: 國立臺灣海洋大學:環境生物與漁業科學學系
Date: 1997
Issue Date: 2017-03-06T01:21:20Z
Abstract: Abstract: Oceanographic conditions and biomass distribution characteristics in the waters
of northeastern Taiwan, where the Kuroshio Current meets the East China Sea, were
investigated using hydroacoustic survey data, CTD (Conductivity, Temperature and
Depth) data and NOAA's AVHRR infrared images. In this region, a cold eddy with
low temperature and high salinity was found near the island of Peng-Chia Yu. In
the summers of 1994 and 1995, the sea surface temperature isotherms (gradients)
were unconducted. The biomass was low and decreased with depth in the center of
the eddy. Higher biomass concentrations were found in two nearby areas: the
waters near the periphery of the cold eddy and the coastal waters of northern
Taiwan. The former had low temperature and high salinity, while the latter had
high temperature and low salinity. In mid-April, 1995, the sea surface temperature
isotherms (gradients) were very complex. A high biomass area was found in the
waters where the warm Taiwan current mixes with continental coastal water of low
temperature and low salinity, while low biomass areas were found in the center of
the cold eddy (low temperature and high salinity), and the front of the Kuroshio
Current (high temperature and high salinity). Since acoustic survey data (Sv) and
satellite image data (SST) have an important spatial component, a Geographic
Information System (GIS) was used to display and analyze some of these data.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41572
Appears in Collections:[環境生物與漁業科學學系] 演講及研討會

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