Global Simplified Atmospheric Radiative Transfer Model at L-Band

被引：4
|
作者：
Peng, Jinzheng [1 ,2 ]
Kim, Edward [2 ]
Piepmeier, Jeffrey [2 ]
机构：
[1] Morgan State Univ, Baltimore, MD 21251 USA
[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
来源：
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS | 2013年 / 10卷 / 03期
关键词：
Electromagnetic propagation; microwave radiometry; radiative transfer model (RTM); SALINITY;
D O I：
10.1109/LGRS.2012.2208213
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
A simplified atmospheric radiative transfer model at L-band has been developed for the Soil Moisture Active/Passive (SMAP) forward brightness temperature (level 1) simulator. The upwelling and downwelling brightness temperatures and the total loss factor of the atmosphere are modeled as polynomial functions of pressure, temperature, and water vapor density near the Earth's surface, as well as incidence angle. The model has been developed and verified by using global radiosonde data, and the model error is within the 0.1 K error budget (atmosphere portion) of the SMAP brightness temperature (Level 1B) product.
引用
收藏
页码：437 / 440
页数：4
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