Satellite observations of upwelling on the continental shelf south of Madagascar
Satellite observations of upwelling on the continental shelf south of Madagascar
复制标题
马达加斯加以南大陆架上升流的卫星观测
DOI：
--
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
W. Nowlin
中科院分区：
文献类型：
--
作者：
S. DiMarco;P. Chapman;W. Nowlin
我们报告了2000年2月和3月在马达加斯加南部大陆斜坡和陆架的卫星AVHRR海表温度图像中看到的上升流。在此期间，上升流与该地区异常高的伪风应力同时发生。然而，西界东马达加斯加流（位于大陆坡区上方）可能对上升流作用有贡献。上升流覆盖了2°经度1°纬度的区域，其峰值温度比当地环境海表温度低约3-5°C。然而，由于该地区缺乏现场风和洋流资料，因此无法对相对强迫进行定量评估。
We report on upwelling seen in satellite AVHRR sea surface temperature imagery over the continental slope and shelf of southern Madagascar during February and March 2000. The upwelling is concurrent with anomalously high pseudo wind‐stress over the region during this period. However, the western boundary East Madagascar Current, which is seen over the continental slope region, may contribute to the upwelling effect. The upwelling covers an area of 2° longitude by 1° latitude and at its peak is about 3–5°C cooler than the local ambient sea surface temperature. The paucity of in situ wind and current data in the region, however, prohibit a quantitative assessment of the relative forcing.