摘要
海表面盐度是气候学和海洋学的重要参数,利用海水盐度在L波段的辐射特性实现海表面盐度探测已经是国际上公认的有效手段。该文回顾了现有基于微波遥感的海表面盐度探测体制的研究进展,包括双波段探测体制、L波段被动探测体制、L波段主被动联合探测体制,着重介绍了机载L/S双波段,土壤温度观测卫星和宝瓶座应用科学卫星(Aquarius)的亮温校正技术,反演算法以及两颗盐度卫星的定标技术。此外,还介绍了一种基于GNSS反射信号(GNSS-R)技术的新型海表面盐度探测体制。最后,对基于微波遥感的不同海表面盐度探测体制的特点进行了总结比较,提出了未来海表盐度遥感可以改进的方向。
Sea surface salinity is a key parameter in both climatology and oceanography fields.L-band microwave remote sensing had been a useful method for monitoring the sea surface salinity.This article reviews the research progress of the existing sea surface salinity probe technology based on microwave remote sensing including dual-band probe technology,L-band passive probe technology and L-band active and passive combined probe technology and focuses on the brightness temperature correction technology,retrieval algorithms and calibration technology.Besides,a new sea surface salinity probe technology based on GNSS-R technology is introduced.At last,the characteristics of different sea surface salinity probe technology are summarized and compared and suggestions of future sea surface salinity retrieval based on remote sensing are presented.
出处
《遥感信息》
CSCD
北大核心
2015年第2期17-25,共9页
Remote Sensing Information
关键词
海表面盐度
微波遥感
探测体制
反演算法
GNSS-R
盐度探测
sea surface salinity
microwave remote sensing
probe technology
inversion algorithm
GNSS-R
salinity probe
