Microwave temperature sounding observations
Abstract
Microwave temperature sounders (MWTS) onboard Polar-orbiting Operational Environmental Satellites (POES) provide measurements in the microwave spectrum around 60 GHz. The amount of thermal emission measured at different frequencies depends mainly on the atmospheric temperature at different altitudes. Measurements from MWTS were among the earliest that were directly assimilated into global medium-range weather forecast models using either a three-dimensional or four-dimensional variational approach. This chapter provides select information about satellite MWTS measurements important for the effective assimilation of these measurements, including POES orbital characteristics; some basic ...
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