热带海洋学报 ›› 2014, Vol. 33 ›› Issue (2): 17-27.doi: 10.11978/j.issn.1009-5470.2014.02.003

• 海洋水文学 • 上一篇    下一篇

卫星遥感南海海表面日增温的时空变化特征*

林锐1, 2, 张彩云1, 李炎1, 2   

  1. 1. 福建省海陆界面生态重点实验室(厦门大学), 福建 厦门 361005; 2. 厦门大学环境与生态学院, 福建 厦门 361005;
  • 收稿日期:2012-10-24 修回日期:2013-07-11 出版日期:2014-04-02 发布日期:2014-04-02
  • 通讯作者: 张彩云。E-mail: cyzhang@xmu.edu.cn
  • 作者简介:林锐(1988~), 女, 福建省龙岩市, 硕士研究生, 主要从事海洋遥感应用研究。E-mail: sannoy@126.com

Satellite observation of the temporal and spatial variation of sea surface diurnal warming in the South China Sea

LIN Rui1, 2, ZHANG Cai-yun1, LI Yan1, 2   

  1. 1. Fujian Provincial Joint Key Laboratory for Coastal Ecology and Environmental Studies (Xiamen University), Xiamen 361005, China; 2. College of the Environment and Ecology, Xiamen University, Xiamen 361005, China;
  • Received:2012-10-24 Revised:2013-07-11 Online:2014-04-02 Published:2014-04-02
  • Contact: 福建省自然科学基金项目(2011J01278); 国家自然科学基金项目(40706041); *感谢陈嘉伟、雷发美、魏国妹在论文编写过程所提供的关于绘图以及IDL编程的建议和指导。文中使用到的遥感SST资料和风场资料分别下载于美国航空航天局哥达德太空飞行中心以及遥感系统数据中心,云量资料来自美国国家海洋和大气管理局,在此一并致谢。

摘要: 利用搭载在Aqua和Terra卫星上的MODIS(moderate resolution imaging spectroradiometer)、AMSR-E(advanced microwave scanning radiometer for the earth observing system)传感器测量反演的昼夜海表温度(SST), 计算海表面日增温(sea surface diurnal warming), 分析南海海表面日增温的短期和年变动特征。受观测平台过境时间、传感器测量SST方式、反演算法等影响, MODIS/Aqua计算的日增温幅度略大于AMSR-E/Aqua和MODIS/Terra, 但在表征南海海表面日增温的时空分布特征以及变化趋势上三者并未见显著性差异。南海海表面日增温在时间分布上以冬季为最小, 春季为最大; 在空间分布上则是南部海域大于中部和北部海域, 东部海域大于西部海域。春夏之交的吕宋海峡西北部尤其容易发生日增温事件。海表面日增温与太阳辐射、风速、云量等影响有关, 其中风速与海表面日增温显著负相关。

关键词: 海表温度(SST), 海表面日增温, 时空分布, 南海, 卫星遥感

Abstract: Satellite-derived sea surface temperature (SST) data from the MODIS (moderate resolution imaging spectroradiometer)/ Aqua, AMSR-E (advanced microwave scanning radiometer for the earth observing system)/Aqua and MODIS/Terra over the past ~10 years are analyzed to investigate the sea surface diurnal warming in the South China Sea (SCS). The results reveal that sea surface diurnal warming derived by MODIS/Aqua is slightly higher than that by AMSR-E/Aqua and MODIS/Terra, due to the differences in satellite transit time, sampling manner and retrieval algorithm, among others. However, there are no significant biases in terms of spatial and temporal distributions, and of the variation of sea surface diurnal warming over the SCS. The magnitude of sea surface diurnal warming in the SCS is the weakest during winter, and the strongest during spring. The magnitude is generally larger in the southern regions than in the central and northern regions, and is larger in the eastern regions than in the western regions. Northwest of the Luzon Strait, the sea surface diurnal warming tends to appear easily from late spring to early summer. It is suggested that the seasonal variation of sea surface diurnal warming in the SCS be affected by solar radiation, wind speed and cloud amount; among them, the wind speed is the most important factor with a significant negative correlation with the diurnal warming.

Key words: sea surface temperature, sea surface diurnal warming, temporal and spatial distribution, South China Sea, satellite remote sensing

中图分类号: 

  • X87