Title :
Evaluation of Temperature Independent Spectral Indices of Emissivity in Land Surface Emissivity retrievals
Author :
Jiang, Geng-Ming ; Wang, Bin
Author_Institution :
Key Lab. of Wave Scattering & Remote Sensing Inf., Fudan Univ., Shanghai, China
Abstract :
This paper addressed the evaluation of Temperature Independent Spectral Indices of Emissivity (TISIE) in Land Surface Emissivity (LSE) retrievals over an eastern China area (110°E-125°E, 35°N-50°N) using Radiative Transfer Modeling (RTM) experiments with the products (MOD11C1, MOD11_L2 and MOD07) of the MODerate resolution Imaging Spectroradiometer (MODIS) on Terra in Sept. of 2007. The results show that the LSE errors due to the instrumental noises can be neglected, whereas the LSE errors due to the method and the uncertainties of Total Precipitable Water (TPW) are channel-dependent and region-dependent, and in general, they are so large that they cannot be neglected in both middle infrared and thermal infrared channels.
Keywords :
atmospheric radiation; land surface temperature; radiative transfer; radiometry; AD 2007 09; LSE errors; MODIS; MODerate resolution Imaging Spectroradiometer; eastern China area; emissivity temperature independent spectral indices; instrumental noises; land surface emissivity retrievals; middle infrared channel; radiative transfer modeling; thermal infrared channel; total precipitable water; Land surface; Land surface temperature; MODIS; Noise; Remote sensing; Temperature sensors; LSE retrieval; TISIE; evaluation;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6350770
