南海东北部冬季表面环流的卫星红外遥感观测研究

Satellite infrared remote sensing observation of surface circulation of the Northeast South China Sea in winter

根据 1 989～ 1 993年美国 NOAA系列卫星 (NOAA- 1 1、 1 2 )经过南海上空时所获取的数幅较完整的 AVHRR传感器映像资料 ,并结合 1 992年 3月 8日～ 2 7日在南海东北部海域现场观测所获的 CTD资料 ,揭示并讨论了发生在该海域的一些物理海洋学现象。结果表明 ,利用卫星映像和现场观测资料来分析和研究南海中的物理海洋学问题有着较好的互补性。卫星映像产生的海面温度场的分布基本上反映了现场观测的结果。通过对两者的综合分析 。

Based on several images taken by the NOAA\|11 and \|12 Advanced Very High Resolution Radiometer (AVHRR/2)during 1989\|1993, and combined with a larger scale of oceanographyic investigation during 8\|27 March 1992, some related questions of the physical oceanography in the South China Sea have been discussed. Results showed that there were a more complementary action for the investigation and study on the physical oceanographic phenomena in the South China Sea using the satellite imageries and in\|situ data, and the distribution and variation of the satellite\|derived sea surface temperature field in the Northeast South China Sea basically mirrored the rusults obtained from in\|situ investigation. Some of the large scale and meso\|scale marine phenomena varied with the long and medium periods, for instance, an anticyclonic meandering of the Kuroshio path when it flowed through the Bashi Channel, the warmer water with high temperature along the west coastline of Luson Island, the western and northern warmer water tongues off the southwest of Taiwan, as well as the thermal front along the continental shelf off Guangdong, were well presented in both the satellite imageries and in\|situ data. Then, there also can be revealed some marine phenomena with a short period, or in the further large area using the satellite imageries, which will provide scientific basis for planning and carrying out the effective marine investigation. Finally, a map of surface circulation pattern in the northeast South China Sea in winter was sketched according to the comprehensive analysis of the satellite and in\|situ data.