Retrieval of land surface temperature in the humid tropics from MODIS data by modeling the atmospheric transmission and thermal emission

Author

Lim, Agnes ; Liew, S.C. ; Kwoh, L.K.

Author_Institution

Centre for Remote Imaging Sensing & Process., Nat. Univ. of Singapore

Volume

7

fYear

2004

fDate

20-24 Sept. 2004

Firstpage

4572

Abstract

In the humid tropics, humidity is high implying a high water vapour content in the atmosphere. This causes strong attenuation in the radiation measured in the thermal infrared as the main absorption in this region is due to water vapour. In this study Land Surface Temperature (LST) is retrieved from single band infrared (IR) band through the modeling of atmospheric transmission and thermal emission given only surface parameters. Comparison of the LST retrieved from single IR bands within the same dataset and cross comparison with the standard MODIS LST Product gives high correlation indicating the validity of the models adopted for the atmosphere

Keywords

atmospheric humidity; atmospheric radiation; atmospheric techniques; atmospheric temperature; data acquisition; information retrieval; infrared imaging; land surface temperature; radiometry; Land Surface Temperature retrieval; MODIS data; atmospheric transmission modeling; atmospheric water vapour content; humid tropics; information retrieval; radiation attenuation; single IR band; single band infrared band imaging; surface parameter; thermal emission modeling; thermal infrared absorption; Atmosphere; Atmospheric measurements; Atmospheric modeling; Attenuation measurement; Electromagnetic wave absorption; Humidity; Information retrieval; Land surface; Land surface temperature; MODIS;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International

Conference_Location

Anchorage, AK

Print_ISBN

0-7803-8742-2

Type

conf

DOI

10.1109/IGARSS.2004.1370172

Filename

1370172