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SPATIAL VARIABILITY OF LAND-SURFACE PROCESS

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THE PROJECT INVOLVES FOUR MAIN COMPONENTS :

(A) THE STUDY OF THE ROLE OF SOIL MOISTURE INLAND SURFACE PROCESSES AT VARIOUS SCALES, FROM THE POINT SCALE OF SOIL PHYSICS TO THE GLOBAL SCALE OF GENERAL CIRCULATION MODELS;

(B) THE COMPARISON OF THE FEASIBILITY AND REALIABILITY OF VARIOUS MACRO-SCALE MODELS OF LAND-SURFACE PROCESSES INVOLVING VARYING DEGREES OF PARAMETERIZATION OF SMALLER SCALE PROCESSES;

(C) AN EXAMINATION OF THE DIRECT USE OF REMOTELY SENSED SOIL MOISTURE PARAMETERS IN CLIMATE MODELS;

(D) ASSESSMENT OF THE SIGNIFICANCE OF THE RESULTS FOR DESERTIFICATION AND RELATED PROBLEMS IN EUROPE.

THE FOLLOWING TASKS WILL BE PERFORMED :

DETERMINATION OF SOIL PHYSICAL PROPERTIES AT THREE DIFFERENT SCALES OF OBSERVATION WITHIN THE HUPSELSE BEEK EXPERIMENTAL WATERSHED AND THEIR SPATIAL VARIABILITY BY MEANS OF A SET OF SCALE FACTORS. THESE DATA SETS WILL BE AVAILABLE TO THE OTHER PARTICIPANTS IN THE PROJECT. EXTENSION OF THIS SCALING TECHNIQUE TO THE REGIONAL SCALE. INVESTIGATION OF THE EFFECTS OF VARIABILITY OF SOIL HYDRAULIC PROPERTIES ON SOIL WATER FLOW USING ONE AND TWO DIMENSIONAL MODELS WHICH CAN ALLOW FOR VARIOUS DIFFERENT SOIL LAYERS AND A FLUCTUATING WATER TABLE. (WAGENINGEN).

THE REPRESENTATION OF THE LAND-SURFACE PROCESSES GENERALLY AND OF SOIL MOISTURE CHANGES IN PARTICULAR IS ONE OF THE WEAKNESSES OF THE PRESENT GENERATION OF GENERAL CIRCULATION CLIMATE MODELS. BETTER MODELLING TECHNIQUES IN THIS AREA WOULD BE OF GREAT ASSISTANCE IN IMPROVING THE ABILITY OF SUCH MODELS TO PREDICT MORE ACCURATELY THE IMPORTANT REGIONAL VARIATIONS IN THE EFFECTS OF CHANGING CLIMATE. THE RESULTS OF THIS PROJECT WILL BE DIRECTLY RELEVANT, NOT ONLY IN CLIMATE MODELS, BUT ALSO IN PROVIDING INFORMATION ON SOIL WATER DEFICITS IN VARIOUS EUROPEAN REGIONS FOR THE PURPOSE OF STUDYING DESERTIFICATION AND RELATED PROBLEMS.

Wissenschaftliches Gebiet

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Finanzierungsplan

CSC - Cost-sharing contracts

Koordinator

LANDBOUWHOGESCHOOL WAGENINGEN
EU-Beitrag
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Adresse
SALVERDAPLEIN 10
6701 DB WAGENINGEN
Niederlande

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Letzte Aktualisierung: 24 November 1989

Mein Booklet

Permalink: https://cordis.europa.eu/project/id/EV4C0054/de

European Union, 2024