Title :
Study of Atmospheric Effects on Soil Moisture Retrieved by AMSR-E Brightness Temperature Over Tibetan Plateau
Author :
Wang, Yongqian ; Tian, Bangsen ; Shi, Jiancheng ; Wang, J.R. ; Jiang, Lingmei
Author_Institution :
China; Grad. Sch., Chinese Acad. of Sci., Beijing
Abstract :
In this paper, we studied the atmospheric effects which were caused by non-precipitation cloud on soil moisture retrieved by AMSR-E brightness temperatures. The cloud liquid water was retrieved by using AMSR-E 89 GHz temperature brightness. Then the atmospheric effects were computed on X band which was used to retrieve soil moisture. Because of the cloud effect, the surface temperature can not be reliably estimated using infrared satellite data, we have used an algorithm to minimize the effect of surface temperature on soil moisture retrievals. Then the retrieved soil moisture was validated by the experimental data in CEOP. The results indicated that the retrieval of soil moisture was indeed impacted by atmospheric non-precipitation cloud though the effect was very small in the study area.
Keywords :
atmospheric boundary layer; atmospheric humidity; atmospheric temperature; clouds; hydrological techniques; land surface temperature; moisture; radiometry; remote sensing; soil; AMSR-E brightness temperature; Coordinated Enhanced Observing Period; Tibetan plateau; X-band analysis; cloud liquid water; frequency 89 GHz; nonprecipitation cloud; soil moisture atmospheric effects; surface temperature; Brightness temperature; Clouds; Information retrieval; Ocean temperature; Remote sensing; Rough surfaces; Sea surface; Soil moisture; Surface roughness; Weather forecasting; Soil moisture; Tibet Plateau; atmosphere; cloud liquid water;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4779083
