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Study on Earth Radiation Budget mission scenarios

Abstract

The goal of this study is to study optimized satellite configurations for observation of the radiation balance of the earth. We present a literature survey of earth radiation budget missions and instruments. We develop a parametric tool to simulate realistic multiple satellite mission scenarios. This tool is a modular computer program which models satellite orbits and scanning operation. We use Meteosat data sampled at three hour intervals as a database to simulate atmospheric scenes. Input variables are satellite equatorial crossing time and instrument characteristics. Regional, zonal and global monthly averages of shortwave and longwave fluxes for an ideal observing system and several realistic satellite scenarios are produced. Comparisons show that the three satellite combinations which have equatorial crossing times at midmorning, noon and midafternoon provide the best shortwave monitoring. Crossing times near sunrise and sunset should be avoided for the shortwave. Longwave diurnal models are necessary over and surfaces and cloudy regions, if there are only two measurements made during daylight hours. We have found in the shortwave inversion comparison that at least 15% of the monthly regional errors can be attributed to the shortwave anisotropic models used. (orig.) 68 refs.
Authors:
Dlhopolsky, R; Hollmann, R; Mueller, J; Stuhlmann, R [1] 
  1. GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Atmosphaerenphysik
Publication Date:
Dec 31, 1997
Product Type:
Technical Report
Report Number:
GKSS-97/E/71
Reference Number:
SCA: 540110; PA: DE-98:0GJ181; EDB-99:016701; SN: 98002037965
Resource Relation:
Other Information: PBD: 1997
Subject:
54 ENVIRONMENTAL SCIENCES; SOLAR RADIATION; REMOTE SENSING; SATELLITES; RESEARCH PROGRAMS; EARTH ATMOSPHERE; ERRORS; RADIOMETERS
OSTI ID:
300085
Research Organizations:
GKSS-Forschungszentrum Geesthacht GmbH (Germany)
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0344-9629; Other: ON: DE99715929; TRN: DE98GJ181
Availability:
OSTI as DE99715929
Submitting Site:
DE
Size:
129 p.
Announcement Date:
Feb 01, 1999

Citation Formats

Dlhopolsky, R, Hollmann, R, Mueller, J, and Stuhlmann, R. Study on Earth Radiation Budget mission scenarios. Germany: N. p., 1997. Web.
Dlhopolsky, R, Hollmann, R, Mueller, J, & Stuhlmann, R. Study on Earth Radiation Budget mission scenarios. Germany.
Dlhopolsky, R, Hollmann, R, Mueller, J, and Stuhlmann, R. 1997. "Study on Earth Radiation Budget mission scenarios." Germany.
@misc{etde_300085,
title = {Study on Earth Radiation Budget mission scenarios}
author = {Dlhopolsky, R, Hollmann, R, Mueller, J, and Stuhlmann, R}
abstractNote = {The goal of this study is to study optimized satellite configurations for observation of the radiation balance of the earth. We present a literature survey of earth radiation budget missions and instruments. We develop a parametric tool to simulate realistic multiple satellite mission scenarios. This tool is a modular computer program which models satellite orbits and scanning operation. We use Meteosat data sampled at three hour intervals as a database to simulate atmospheric scenes. Input variables are satellite equatorial crossing time and instrument characteristics. Regional, zonal and global monthly averages of shortwave and longwave fluxes for an ideal observing system and several realistic satellite scenarios are produced. Comparisons show that the three satellite combinations which have equatorial crossing times at midmorning, noon and midafternoon provide the best shortwave monitoring. Crossing times near sunrise and sunset should be avoided for the shortwave. Longwave diurnal models are necessary over and surfaces and cloudy regions, if there are only two measurements made during daylight hours. We have found in the shortwave inversion comparison that at least 15% of the monthly regional errors can be attributed to the shortwave anisotropic models used. (orig.) 68 refs.}
place = {Germany}
year = {1997}
month = {Dec}
}