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|Title: ||Empirical orthogonal function analysis of AVHRR sea surface temperature patterns in taiwan strait|
|Authors: ||Ming-An Lee;Ching-Dong Yeah;Chao-Hsiung Cheng;Jui-Wen Chan;Kuo-Tien Lee|
|Contributors: ||NTOU:Department of Environmental Biology and Fisheries Science|
|Keywords: ||AVHRR;SST;Taiwan Strait;EOF|
|Issue Date: ||2011-10-20T08:24:36Z
|Publisher: ||Journal of Marine Science and Technology|
|Abstract: ||ABSTRACT:Empirical orthogonal function (EOF) analysis was used to study
a time-series of the Advanced Very High Resolution Radiometer
(AVHRR) imageries from the waters of Taiwan Strait to examine the
temporal and spatial characteristics and to determine the dominant
pattern of sea surface temperature (SST) variability for 72 months
from January 1996 to December 2001. The spatial variance was
consistent with a quasi-permanent front at the Chang-Yuen Ridge in
winter and associated with strong temperature contrast to the Kuroshio
branch or the South China Sea Warm Current. It also displayed a cool
water plume extending from the Peng-Hu Islands to Formosa Banks in
summer. The EOF patterns and the eigenvalues in time and space
were similar to each other. The dominant EOF mode, which resembled
the mean of all images, showed a crescentic-shaped front
near the Chang-Yuen Ridge where a cool tongue extending from
China Coastal Waters was distinguishable from the warm current.
The second mode revealed that the South China Sea Warm Current
and the Taiwan Warm Current were over the Peng-Hu Channel
following the 60- to 100-m isobaths. These two spatial modes
accounted for 69.51% and 8.78% of the SST variance, respectively.
From these images, we also discussed the characteristics of the SST
variance in relation to the environments in winter.
|Relation: ||11(1), pp.1-7|
|Appears in Collections:||[環境生物與漁業科學學系] 期刊論文|
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