Estimating of the total atmospheric precipitable water vapor amount from the Chinese new generation polar orbit FengYun meteorological satellite (FY-3) data

Author

Shuo Peng ; Bo-Hui Tang ; Hua Wu ; Ronglin Tang ; Zhao-Liang Li

Author_Institution

State Key Lab. of Resources & Environ. Inf. Syst., Inst. of Geographic Sci. & Natural Resources Res., Beijing, China

fYear

2014

fDate

13-18 July 2014

Firstpage

3029

Lastpage

3032

Abstract

The total atmospheric precipitable water vapor amount (TWV) is a key variable for the study of the Earth´s climate. This paper develops an algorithm to estimate the TWV over clear skies from the Medium Resolution Spectral Imager (MERSI) data in the near-IR channels. The MODTRAN 4 code is used to simulate the top of the atmospheric radiances for the MERSI channels. The results show that the proposed algorithm is suitable to estimate TWV form the absorbing channel centered at 0.940 μm and the atmospheric window channels centered at 0.865 μm and centered at 1.030 μm by the radiances over the clear pixels, with relative differences in the range of 10%-15%.

Keywords

atmospheric humidity; atmospheric techniques; remote sensing; China; Earth climate; MERSI channels; MODTRAN 4 code; absorbing channel; atmospheric radiances; atmospheric window channels; clear pixels; medium resolution spectral imager data; near-IR channels; polar orbit Fengyun meteorological satellite data; total atmospheric precipitable water vapor amount; Atmospheric measurements; Atmospheric modeling; Channel estimation; MODIS; Remote sensing; Satellites; Sea measurements; FengYun-3 (FY-3); Medium Resolution Spectral Imager (MERSI); Total atmospheric precipitable water vapor amount (TWV); near-IR channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International

Conference_Location

Quebec City, QC

Type

conf

DOI

10.1109/IGARSS.2014.6947115

Filename

6947115