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'INDICE DE VEGETATION'
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article/chapitre/communication
L. Berges ; J. Gegout ; CEMAGREF NOGENT SUR VERNISSON EFNO ; A. Franc ; ENGREF LERFOB NANCY ; INRA CDA UMR BIODIVERSITE GENES ET ECOSYSTEMES CESTAS | 2006L'objectif était d'étudier sur un vaste territoire la pertinence de la végétation du sous-bois pour prédire le niveau de productivité d'un peuplement, mesurée par l'indice de fertilité du chêne sessile (Quercus petraea Liebl.). Les relations ent[...]
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article/chapitre/communication
C. Ricotta ; G. Avena ; A. De Palma | 1999
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carte
thèse/mémoire
article/chapitre/communication
P. Schhultz ; M. Halpert | 1995This study is designed to examine the spatial variability of the relationships among global NDVI (Normalized Difference Vegetation Index) data, remotely-sensed land surface temperature data, and gridded station precipitation data as well as to i[...]
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Taking forest areas specified according to information on the National digital land data, the vapour pressure deficit at leaf temperature and the degree of stomatal opening were presumed using the vegetation index of forest areas derived from La[...]
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B. Clothier ; K. Clawson ; U.S. DEPARTMENT OF AGRICULTURE PHOENIX AGRICULTURAL RESEARCH SERVICE ; P. Pinter ; U.S. WATER CONSERVATION LABORATORY PHOENIX ; M. Moran ; R. Reginato ; R. Jackson | 1986Soil heat flux studies have indicated that the instantaneous daytime flux can be estimated as a fraction of the net radiation, the ratio ranging from 0.1 to 0.5, depending on the amount of vegetation present and on the time of day. Soil heat flu[...]
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L. Dupigny-giroux ; J. LEWIS | 1999A multispectral index, designed to describe surface moisture characteristics, was derived from the information content at the blue, near-infrared, and thermal wavelengths of Landsat Thematic Mapper imagery. The index is given by an open-ended tr[...]
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Satellite Soil Moisture Retrieval: Techniques and Applications offers readers a better understanding of the scientific underpinnings, development, and application of soil moisture retrieval techniques and their applications for environmental mod[...]
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J. Clevers | 1991The weighted (near-infrared-red) difference vegetation index (WDVI) can be used for estimating leaf area index (LAI) of green vegetation. This WDVI offers a good correction for soil background in estimating the LAI of green vegetation, e.g. cere[...]
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P. Van Oevelen ; W. Kustas ; WAGENINGEN AGRICULTURAL UNIVERSITY NLD DEPARTMENT OF WATER RESOURCES ; C. Daughtry ; USDA-ARS HYDROLOGY LABORATORY BELTSVILLE USA ; USDA-ARS REMOTE SENSING RESEARCH LABORATORY BELTSVILLE USA | 1993The objective of this study was to test the feasibility of estimating the available energy for evapotranspiration, expressed as net radiation plus soil heat flux on a daily time step. For estimating daily net radiation, incorporating a vegetatio[...]
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L. Eklundh | 1995Noise has been estimated in Advanced Very High Resolution Radiometer (AVHRR) maximum-value composite Normalized Difference Vegetation Index (INDVI) products using a geostatistical method calculating the noise as the square root of the nugget var[...]
