從衛星紅外線影像研判臺灣海峽冬季之海況動態－兼論其與烏魚漁場形成的關係

Hydrographic Studies on the Area of Taiwan Strait in Winter Using Satellite IR Imagery and Its Relationships to the Formation of Grey Mullet Fishing Ground

徐崇仁(Cheng-Zen Shyu) ； 李燦然(Tsan-Jan Lee)

《臺灣水產學會刊》 12卷2期 (1985/12) Pp. 98-122

https://doi.org/10.29822/JFST.198512.0009

摘要

1984年12月11日，水產試驗所導入了衛星漁場資訊系統（NOAA-APT接收系統），開始接收美國NOAA系列氣象衛星遙測之本省近海海況影像。根據烏魚漁汎期前後衛星遙測之海面熱紅外線影像資料及歷年來漁海況調查結果分析所得，顯示烏魚羣的來游可能是沿着貫入於臺灣海峽黑潮支流系暖水與沿岸間之細長冷水南下，此一低溫低鹽之細長冷水舌於新竹—臺中間沿海一帶貫入後沿西部海岸線向南延伸，愈南愈窄（5~10海浬寬），與外側黑潮暖水間形成明顯的潮境，略成盲腸狀，島魚羣可能滯游於該冷水舌尖端一带而形成濃密魚羣，成為良好漁場。

並列摘要

In Dec. 11, 1984, satellite fishing ground data system (NOAA-APT receiving system) had been installed by T. F. R. I. (Taiwan Fisheries Research Institute) for recieving infrared images obtained from the NOAA series satellite. According to the infrared images around waters of Taiwan Strait during the fishing season of grey mullet in winter, cath data and oceanographic data observed by research vessel of T. F. R. I., shool of grey mullet seems migrating along the protruding cold filament betweem the warm branch of Kuroshio and coastal line of western Taiwan. This cold filament of lower temperature and salinity protrudes from mid western coast (Hsinchu-Taichung) and extends gradually southward, the width of this cold filament is narrower to the south (from 10 to 5 miles) and forming obvious front to the warm branch of Kuroshio. It is suggested that school of grey mullet are obstructed within the tip of the cold filament and forming dense school available for fishing activity.