Derivation of land surface temperatures from MOS-1 VTIR data using split-window channel computation technique
MOS-1 (Marine Observation Satellite, Japan) VTIR (Visible and Thermal Infrared Radiometer) multi-channel thermal infrared data have been utilized to compute the surface temperatures on land over different parts of Eastern India. Two existing models have been used to derive surface temperatures in addition to the comparison with existing in situ data. The split-window channel technique is used to avoid the problem due to atmospheric water vapour perturbation. The technique followed here would essentially be valid in a noncloudy region. A high correlation (r0.71) is established between the satellite data-derived results and in situ measurements at different meteorological stations over Eastern India. Results from various models vary within 3-5 C along a horizontal profile in the area of interest in Bakreswar which is considered as a geothermally active zone.