PARAMETERIZATION OF LAND SURFACE FLUXES FOR CLIMATE MODELLING

Projektinformationen

ID Finanzhilfevereinbarung: EV4C0015

Projekt abgeschlossen

Startdatum 1 Juli 1987

Enddatum 30 Juni 1990

Finanziert unter

• Multiannual R&D programmes (EEC) in the field of the environment - Climatology and natural hazards - , 1986-1990

Gesamtkosten € 0,00

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Koordiniert durch

LANDBOUWUNIVERSITEIT WAGENINGEN
Netherlands

Ziel

A BETTER UNDERSTANDING OF THE PHYSICAL PROCESSES YIELDING THE HEAT FLUXES OBSERVED OVER HETEROGENEOUS MEDIA AND THEREFORE TO A BETTER PARAMETRIZATION OF THESE FLUXES AT MESO-SCALE, INCLUDING IF POSSIBLE PARAMETERS MEASURABLE FROM SATELLITES.
THE DERIVATION AND IMPROVEMENT OF WELL VALIDATED METHODS OF MEASUREMENT OF THESE FLUXES AT THE APPROPRIATE SCALES.

EXPERIMENTS WILL BE PERFORMED IN ORDER :

I.TO MEASURE RADIANCE, HEAT, WATER AND MOMENTUM FLUXES OVER DIFFERENT SURFACE TYPES;
II.TO RELATE LOCAL MEASUREMENTS (REPRESENTATIVE OF SMALL PLOTS) TO NON-LOCAL MEASUREMENTS, SUCH A EDDY CORRELATION MEASURED BY AIRCRAFT OR RADIANCE FLUXES MEASURED BY SATELLITES, AND
III.TO CHARACTERISE THE SRUCTURE OF THE LAND SURFACE IN SIMPLE, QUANTITATIVE TERMS, SUCH AS DENSITY AND HEIFGT OG VEGETATION, ROUGHNESS LENGTH, SURFACE SLOPE AND EXPOSURE.

THE DUTCH CONTRIBUTION CONSISTS OF
A.PARTICIPATION TO THE JOINT FIELD EXPERIMENT IN CRAU, FRANCE, IN JUNE 1987,
B.PROCESSING THE COLLECTED DATA; BRINGING THESE ON MAGNETIC TAPES IN A STANDARD FORMAT,
C.VERIFICATION OF (EXISTING) METHODS.
FOR THE FIRST TWO YEARS WE WILL CONFINE OURSELVES TO IRREGULARITIES AT THE SURFACE WHICH ARE SO SMALL (10-1000M.) THAT THESE DO NOT EFFECT THE DYNAMICS OF THE PLANETARY BOUNDARY LAYER (PLB). IN A LATER STAGE, THE DUTCH GROUP WILL CONTRIBUTE ALSO TO THE PROBLEM OF NON-UNIFORM TERRAIN WITH IRREGULARITIES ON A LARGER SCALE (BUT SMALLER THAN 100 KM.) THAT INFLUENCE THE DYNAMICS OF THE PBL.FOR THIS MODELS, E.G. A LARGE-EDDY PBL MODEL, ARE AVAILABLE.

Wissenschaftliches Gebiet

• engineering and technology › mechanical engineering › vehicle engineering › aerospace engineering › satellite technology
• engineering and technology › mechanical engineering › vehicle engineering › aerospace engineering › aircraft

Programm/Programme

• FP1-CLIMAT 3C - Multiannual R&D programmes (EEC) in the field of the environment - Climatology and natural hazards - , 1986-1990

Thema/Themen

Data not available

Aufforderung zur Vorschlagseinreichung

Data not available

Finanzierungsplan

CSC - Cost-sharing contracts

Koordinator

LANDBOUWUNIVERSITEIT WAGENINGEN

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• Adresse: POSTBUS 9101 SALVERDAPLEIN, 10 ; 6700 HB WAGENINGEN ; Niederlande
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Beteiligte (4)

ARISTOTELIAN UNIV DEPT OF BIOLOGY

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GROUPEMENT SCIENTIFIQUE DE TELEDETECTION

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INST F METEOROLOGIE

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INSTITUTE OF GEOGRAPHY

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