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Influence of clouds on the spectral actinic flux in the lower troposphere

Influence of clouds on the spectral actinic flux in the lower troposphere

Objective

Ultraviolet radiation is the main factor driving the troposphere photochemistry and is strongly modulated by clouds and aerosols. A quantitative understanding of the radiation field and its effect on photochemistry is thus only possible with detailed knowledge of the interaction between clouds and radiation. This knowledge is particularly needed for regional and global chemistry models which at present rely on very simple parameterisations for clouds. INSPECTRO combines space-based, aircraft and ground-based measurements as well as simulations with one- and three-dimensional radiative transfer models to characterize the radiation field in the presence of broken clouds. The goal of the proposed project is to improve our understanding of the three-dimensional ultraviolet radiation field and its implications for photochemistry in the lower troposphere under conditions representative for Europe.

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Coordinator

FORSCHUNGSZENTRUM KARLSRUHE GMBH - TECHNIK UND UMWELT

Address

5,Hermann Von Helmholtz Platz 1
76344 Eggenstein-Leopoldshafen

Germany

Administrative Contact

Manfred POPP

Participants (9)

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ARISTOTLE UNIVERSITY OF THESSALONIKI

Greece

GERMAN AEROSPACE CENTRE

Germany

LEOPOLD-FRANZENS-UNIVERSITAET INNSBRUCK

Austria

METEOROLOGIE CONSULT GMBH

Germany

NORWEGIAN INSTITUTE FOR AIR RESEARCH

Norway

NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Norway

UNIVERSITY OF EAST ANGLIA

United Kingdom

UNIVERSITY OF LEICESTER

United Kingdom

UNIVERSITY OF MANCHESTER

United Kingdom

Project information

Grant agreement ID: EVK2-CT-2001-00130

  • Start date

    1 January 2002

  • End date

    31 December 2005

Funded under:

FP5-EESD

  • Overall budget:

    € 2 636 785

  • EU contribution

    € 1 799 892

Coordinated by:

FORSCHUNGSZENTRUM KARLSRUHE GMBH - TECHNIK UND UMWELT

Germany