Scheme for atmospheric thermal sensing from satellites with enhanced vertical resolution
Abstract
According to theoretical estimates and the results of processing of satellite information, for existing remote thermal sensing systems and artificial Earth satellites the mean square error in determining temperature delta sub T and vertical resolution in the troposphere (in the layer p or = 100 gPa) is 2.5 K and 4-5 km, which does not meet the requirements of numerical forecasting schemes (about 1.5 K and 2 km). The objective of this article is a brief analysis of the definitions and quantitative evaluations of vertical resolution in the inverse problem of remote thermal sensing using an approach developed by the authors for evaluating the possibility of improving the accuracy and resolution of the results of remote thermal sensing by use of a scheme in which measurements of outgoing IR radiation in several spectral intervals are combined with similar measurements at several angles to the nadir. Emphasis is on increasing vertical resolution by a combination of nadir and slant soundings.
- Publication:
-
USSR Report Space
- Pub Date:
- May 1985
- Bibcode:
- 1985RpSpR.......82U
- Keywords:
-
- High Resolution;
- Infrared Radiation;
- Remote Sensing;
- Temperature Gradients;
- Vertical Orientation;
- Artificial Satellites;
- Atmospheric Sounding;
- Numerical Analysis;
- Spectrum Analysis;
- Geophysics