Title :
Microwave land surface emissivity assessment using AMSU-B and AMSU-A measurements
Author :
Karbou, F. ; Eymard, L. ; Prigent, C. ; Pardo, J.R.
Author_Institution :
CETP, UVSQ, Velizy, France
Abstract :
Land surface emissivities at AMSU frequencies are estimated using collocated brightness temperatures, the International Satellite Cloud Climatology Project (ISCCP) data and the European Centre for Medium-Range Weather Forecasts (ECMWF) temperature-humidity profiles. The impact of some sources of errors is estimated. Angular dependence of the AMSU emissivities is examined. Preliminary AMSU emissivity maps are presented as well as comparison with SSMI derived emissivities and a microwave land emissivity model.
Keywords :
emissivity; geophysical techniques; humidity; remote sensing; AMSU frequencies; Advanced Microwave Sounding Unit; ECMWF; European Centre for Medium Range Weather Forecasts; ISCCP; International Satellite Cloud Climatology Project; SSMI; Special Sensor Microwave Imager; angular dependence; microwave land surface emissivity; temperature humidity profiles; Brightness temperature; Clouds; Frequency estimation; Land surface; Land surface temperature; Microwave measurements; Satellites; Skin; Temperature sensors; Weather forecasting;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Conference_Location :
Toulouse, France
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1294422
