TY - GEN
T1 - Development of global land surface emissivity product at AMSR-E passive microwave frequencies
AU - Norouzi, Hamidreza
AU - Temimi, Marouane
AU - Khanbilvardi, Reza
PY - 2010
Y1 - 2010
N2 - Microwave land surface emissivity is one of the key inputs in Numerical Weather Prediction (NWP) models. It can be used also to classify land surface and subsurface properties such as soil moisture. The objective of this study is to develop global land effective emissivity product using passive microwave observations from the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E). Ancillary data such as land surface skin temperature and cloud flag were obtained from the International Satellite Cloud Climatology Project (ISCCP) data set are used in the analysis. Atmospheric parameters were obtained from TOVS observations to account for the upwelling and downwelling atmospheric emissions as well as atmospheric transmission. Instantaneous land emissivity maps were determined over cloud free pixels for each ascending and descending overpass. In addition, a global clear sky composite is produced on monthly basis. The derived maps show acceptable agreement with the global pattern of land cover types. The emissivity maps also agree reasonably well with the existing SSM/I based product.
AB - Microwave land surface emissivity is one of the key inputs in Numerical Weather Prediction (NWP) models. It can be used also to classify land surface and subsurface properties such as soil moisture. The objective of this study is to develop global land effective emissivity product using passive microwave observations from the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E). Ancillary data such as land surface skin temperature and cloud flag were obtained from the International Satellite Cloud Climatology Project (ISCCP) data set are used in the analysis. Atmospheric parameters were obtained from TOVS observations to account for the upwelling and downwelling atmospheric emissions as well as atmospheric transmission. Instantaneous land emissivity maps were determined over cloud free pixels for each ascending and descending overpass. In addition, a global clear sky composite is produced on monthly basis. The derived maps show acceptable agreement with the global pattern of land cover types. The emissivity maps also agree reasonably well with the existing SSM/I based product.
KW - Diurnal cycle
KW - Land surface emissivity
KW - Microwave
KW - Soil moisture
UR - http://www.scopus.com/inward/record.url?scp=78650903414&partnerID=8YFLogxK
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U2 - 10.1109/IGARSS.2010.5652464
DO - 10.1109/IGARSS.2010.5652464
M3 - Conference contribution
AN - SCOPUS:78650903414
SN - 9781424495658
SN - 9781424495665
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 280
EP - 283
BT - 2010 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010
T2 - 2010 30th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010
Y2 - 25 July 2010 through 30 July 2010
ER -