Title :
One-dimensional soil moisture profile, surface temperature, and canopy temperature retrieval by assimilation of ground based microwave radiometer measurements over bare soil and agricultural crops
Author :
Pathmathevan, Mahadevan ; Koike, Toshio ; Li, Xin
Author_Institution :
Dept. of Civil Eng., Tokyo Univ., Japan
Abstract :
The influences of the vegetation in the detection of soil moisture can be significant and may limit the applicability of the satellite passive microwave sensors. Sensitivity analysis of the applied soil moisture algorithm using the ground based radiometer measurements can show where the problem will arise and how they may be circumvented. This paper investigates the method of retrieving one-dimensional soil moisture profile and surface and canopy temperatures, under the influence of vegetation, from passive microwave, visible and near infrared measurements, by using the novel application of data assimilation technique.
Keywords :
atmospheric temperature; data acquisition; hydrological techniques; radiometry; simulated annealing; soil; vegetation mapping; 1D soil moisture profile; agricultural crops; bare soil; canopy temperature retrieval; data assimilation; ground based microwave radiometer measurements; microwave emission; near infrared measurements; satellite passive microwave sensors; sensitivity analysis; simulated annealing; soil moisture algorithm; soil moisture detection; surface temperature; vegetation influences; visible measurements; Crops; Land surface temperature; Microwave measurements; Microwave radiometry; Moisture measurement; Satellite broadcasting; Soil measurements; Soil moisture; Temperature sensors; Vegetation;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1293958
