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Determination of the influence of high clouds on the radiation field and on climate by analyzing NOAA AVHRR data. Die Bestimmung des Einflusses von hohen Wolken auf das Strahlungsfeld und auf das Klima durch Analyse von NOAA AVHRR-Daten

Abstract

The influence of clouds on the radiation field and on climate is investigated over the North Sea by analyzing NOAA AVHRR data. The derived information was applied to calculate the cloud-climate efficiency at the top of atmosphere and at the surface. The cloud-climate efficiencies in the shortwave spectrum show a cooling effect of the earth/atmosphere system for all clouds and a strong dependence on the solar insolation. For the cloud-climate efficiency in the longwave region always heating of the earth/atmosphere system was observed. Because of the solar zenith angle effect thick high clouds with the same optical properties may lead to different effects in the earth/atmosphere system. A first approach of a comparison of the increasing cloud forcing (heating of the earth-atmosphere system) and an analysis of the relative topography 300/850 hPa shows that the increase of the cloud forcing is well correlated with an increase of the temperature in this layer. The deviation from the long-term mean of the pressure or temperature shows the same behaviour. (orig.).
Authors:
Publication Date:
Nov 01, 1991
Product Type:
Book
Reference Number:
DE-93-000907; EDB-93-020720
Resource Relation:
Journal Volume: 6; Other Information: Diss. (Dr.rer.nat.); Related Information: Meteorologische Abhandlungen des Instituts fuer Meteorologie der Freien Universitaet Berlin. Neue Folge. Serie A. Monographien
Subject:
54 ENVIRONMENTAL SCIENCES; 14 SOLAR ENERGY; CLIMATES; CLOUDS; SOLAR RADIATION; ABSORPTION; ACCURACY; ALBEDO; AMBIENT TEMPERATURE; CORRELATIONS; REMOTE SENSING; SATELLITES; VARIATIONS; WATER VAPOR; FLUIDS; GASES; RADIATIONS; SORPTION; STELLAR RADIATION; VAPORS; 540100* - Environment, Atmospheric- (1990-); 140100 - Solar Energy- Resources & Availability
OSTI ID:
6944804
Research Organizations:
Freie Univ. Berlin (Germany). Inst. fuer Meteorologie; Freie Univ. Berlin (Germany). Fachbereich Geowissenschaften; Bundesministerium fuer Forschung und Technologie, Bonn (Germany)
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Other: CNN: BMFT 513-8320-KF 10110; BMFT 07-KFT 38/3
Submitting Site:
DE
Size:
Pages: (110 p)
Announcement Date:

Citation Formats

Berger, F H. Determination of the influence of high clouds on the radiation field and on climate by analyzing NOAA AVHRR data. Die Bestimmung des Einflusses von hohen Wolken auf das Strahlungsfeld und auf das Klima durch Analyse von NOAA AVHRR-Daten. Germany: N. p., 1991. Web.
Berger, F H. Determination of the influence of high clouds on the radiation field and on climate by analyzing NOAA AVHRR data. Die Bestimmung des Einflusses von hohen Wolken auf das Strahlungsfeld und auf das Klima durch Analyse von NOAA AVHRR-Daten. Germany.
Berger, F H. 1991. "Determination of the influence of high clouds on the radiation field and on climate by analyzing NOAA AVHRR data. Die Bestimmung des Einflusses von hohen Wolken auf das Strahlungsfeld und auf das Klima durch Analyse von NOAA AVHRR-Daten." Germany.
@misc{etde_6944804,
title = {Determination of the influence of high clouds on the radiation field and on climate by analyzing NOAA AVHRR data. Die Bestimmung des Einflusses von hohen Wolken auf das Strahlungsfeld und auf das Klima durch Analyse von NOAA AVHRR-Daten}
author = {Berger, F H}
abstractNote = {The influence of clouds on the radiation field and on climate is investigated over the North Sea by analyzing NOAA AVHRR data. The derived information was applied to calculate the cloud-climate efficiency at the top of atmosphere and at the surface. The cloud-climate efficiencies in the shortwave spectrum show a cooling effect of the earth/atmosphere system for all clouds and a strong dependence on the solar insolation. For the cloud-climate efficiency in the longwave region always heating of the earth/atmosphere system was observed. Because of the solar zenith angle effect thick high clouds with the same optical properties may lead to different effects in the earth/atmosphere system. A first approach of a comparison of the increasing cloud forcing (heating of the earth-atmosphere system) and an analysis of the relative topography 300/850 hPa shows that the increase of the cloud forcing is well correlated with an increase of the temperature in this layer. The deviation from the long-term mean of the pressure or temperature shows the same behaviour. (orig.).}
volume = {6}
place = {Germany}
year = {1991}
month = {Nov}
}