An Iterative Method for Deducing Tropospheric Temperature and Moisture Profiles from Satellite Radiation Measurements
نویسنده
چکیده
An iterative method for deducing the general temperature and moisture structure of the troposphere from satellite radiation measurements of medium spectral resolution is described. The temperature and moisture profiles derived from simulated and radiometrically observed radiances, pertaining t o clear atmospheres, are shown to agree favorably with the radiosonde profiles. The method is expanded to enable the inference of the temperature and moisture profiles of partly cloudy atmospheres. The ability of the method to recognize severe noise in radiance observations which lead to unacceptable temperature and moisture solutions is demonstrated.
منابع مشابه
An Improved Method for Calculating Tropospheric Temperature and Moisture from Satellite Radiometer Measurements
An improved method for calculating tropospheric temperature and moisture from satellite radiometer measurements is developed. The troposphere is modeled by two temperature lapse rates and a single moisture lapse rate. These lapse rates as well as an optimum pressure level for dividing the two layers of constant lapse rate and surface temperature are calculated from three observations in the 1 5...
متن کاملAccuracy Improvement of Tropospheric Delay Interpolation in RTK Networks
The effect of troposphere on the signals emitted from global navigation satellite system (GNSS) satellites, appears as an extra delay in the measurement of the signal traveling from the satellite to receiver. This delay depends on the temperature, pressure, humidity as well as the transmitter and receiver antennas location. In GNSS positioning, tropospheric delay effects on accuracy of differen...
متن کاملEffects of GPS/RO refractivities on IR/MW retrievals
The ability of Global Positioning System Radio Occultation (GPS/RO) to improve tropospheric profile retrievals was examined. Retrievals were performed using IR and MW radiometric measurements from the ATOVS (Advanced TIROS Operational Vertical Sounder) on current NOAA polar orbiting satellites and simulated high spectral resolution infrared measurements from the Cross-track Infrared Sounder (Cr...
متن کاملMineral aerosol contamination of TIROS Operational Vertical Sounder (TOVS) temperature and moisture retrievals
[1] Since mineral aerosols absorb significant amounts of infrared radiation, they may contribute to errors in the retrievals of atmospheric and surface parameters from the TIROS Operational Vertical Sounder (TOVS) High-Resolution Infrared Radiation Sounder (HIRS) if the atmosphere is assumed clear. TOVS is an operational sounder on NOAA polar satellites. To see if observed brightness temperatur...
متن کاملThe effect of diurnal correction on satellite-derived lower tropospheric temperature.
Satellite-based measurements of decadal-scale temperature change in the lower troposphere have indicated cooling relative to Earth's surface in the tropics. Such measurements need a diurnal correction to prevent drifts in the satellites' measurement time from causing spurious trends. We have derived a diurnal correction that, in the tropics, is of the opposite sign from that previously applied....
متن کامل