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Journal Article 2015-07-15

Dry-season vegetation mass and cover fraction from SWIR1.6 and SWIR2.1 band ratio: Ground-radiometer and MODIS data in the Sahel

Autor: Kergoat, L. Hiernaux, Pierre H.Y. Dardel, C. Pierre, C. Guichard, F. Kalilou, A.

Enlace original: https://cgspace.cgiar.org/handle/10568/59798

Investigación en Agricultura

VEGETATION

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Kergoat, L. , Hiernaux, Pierre H.Y. , Dardel, C. , Pierre, C. , Guichard, F. , Kalilou, A. , [Dry-season vegetation mass and cover fraction from SWIR1.6 and SWIR2.1 band ratio: Ground-radiometer and MODIS data in the Sahel] , Dry-season vegetation mass and cover fraction from SWIR1.6 and SWIR2.1 band ratio: Ground-radiometer and MODIS data in the Sahel

Journal Article 1995

A regional sahelian grassland model to be coupled with multispectral satellite data. II. Toward the control of its simulations by remotely sensed indices

Autor: Seen, D. lo Mougin, E. Rambal, S. Gaston, A. Hiernaux, Pierre H.Y.

An approach for combining remote sensing spectral measurements with an ecosystem model was presented in an accompanying article. The sahelian grassland ecosystem STEP model developed for that purpose was also described and validated. In order to fulfill a prerequisite for using coarse resolution ...

Enlace original: https://cgspace.cgiar.org/handle/10568/29554

Investigación en Agricultura

GRASSLANDS

REMOTE SENSING

MODELS

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Seen, D. lo , Mougin, E. , Rambal, S. , Gaston, A. , Hiernaux, Pierre H.Y. , [A regional sahelian grassland model to be coupled with multispectral satellite data. II. Toward the control of its simulations by remotely sensed indices] , A regional sahelian grassland model to be coupled with multispectral satellite data. II. Toward the control of its simulations by remotely sensed indices

Journal Article 1986

Suivi du developpement vegetal au cours de l'ete 1984 dans le Sahel malien

Autor: Hiernaux, Pierre H.Y. Justice, C.O.

Enlace original: https://cgspace.cgiar.org/handle/10568/28805

Investigación en Agricultura

TELEDETECTION

RESSOURCE PASTORALE

VEGETATION

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Hiernaux, Pierre H.Y. , Justice, C.O. , [Suivi du developpement vegetal au cours de l'ete 1984 dans le Sahel malien] , Suivi du developpement vegetal au cours de l'ete 1984 dans le Sahel malien

Journal Article 1994

Relief, sols et vegetation d'une savane soudano-sahelienne du Mali central

Autor: Touré, A.S. Grandtner, M.M Hiernaux, Pierre H.Y.

Les formes du relief, le sols et la vegetation du secteur de Saye, en zone soudano-sahelienne du Mali Central, ont ete classes en vue d'etablir une base ecologique d'echantillonnage de la phytomasse fourragere. L'interpretation des photographies aeriennes au 50 000 a abouti a la reconnaissance de...

Enlace original: https://cgspace.cgiar.org/handle/10568/29491

Investigación en Agricultura

TOPOSEQUENCE

GROUPEMENT VEGETAL

CARTOGRAPHIE

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Touré, A.S. , Grandtner, M.M , Hiernaux, Pierre H.Y. , [Relief, sols et vegetation d'une savane soudano-sahelienne du Mali central] , Relief, sols et vegetation d'une savane soudano-sahelienne du Mali central

Journal Article 1988

Teledetection de l'evolution des ressources fourrageres par satellite: Progres dans l'etalonnage d'un indice radiometrique et premieres applications au Gourma (Sahel malien)

Autor: Hiernaux, Pierre H.Y.

Evaluates relationship between NDVI (nomalized difference vegetation index) and above-ground biomass, between maximum NDVI and end-of-growing season biomass; and between the integral of the NDVI curve or NDVI increments overtime and actual biomass. Describes atmospheric interference and technical...

Enlace original: https://cgspace.cgiar.org/handle/10568/10888

Investigación en Agricultura

REMOTE SENSING

VEGETATION

MONITORING

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Hiernaux, Pierre H.Y. , [Teledetection de l'evolution des ressources fourrageres par satellite: Progres dans l'etalonnage d'un indice radiometrique et premieres applications au Gourma (Sahel malien)] , Teledetection de l'evolution des ressources fourrageres par satellite: Progres dans l'etalonnage d'un indice radiometrique et premieres applications au Gourma (Sahel malien)

Journal Article 2003

Mapping of Sahelian vegetation parameters from ERS scatterometer data with an evolution strategies algorithm

Autor: Jarlan, L. Mazzega, P. Mougin, E. Lavenu, F. Marty, G. Frison, P.L. Hiernaux, Pierre H.Y.

The West African Sahel rainfall regime is known for its spatio-temporal variability at different scales which has a strong impact on vegetation development. This study presents results of the combined use of a simple water balance model, a radiative transfer model and ERS scatterometer data to ...

Enlace original: https://cgspace.cgiar.org/handle/10568/33134

Investigación en Agricultura

VEGETATION

RAIN

MODELS

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Jarlan, L. , Mazzega, P. , Mougin, E. , Lavenu, F. , Marty, G. , Frison, P.L. , Hiernaux, Pierre H.Y. , [Mapping of Sahelian vegetation parameters from ERS scatterometer data with an evolution strategies algorithm] , Mapping of Sahelian vegetation parameters from ERS scatterometer data with an evolution strategies algorithm

Journal Article 2000

Comparison of ERS wind-scatterometer and SSM/I data for Sahelian vegetation monitoring

Autor: Frison, P.L. Mougin, E. Jarlan, L. Karam, M.A. Hiernaux, Pierre H.Y.

ERS wind scatterometer (WSC) and SSNI/I data are compared for monitoring the seasonal variation of herbaceous vegetation over a sahelian region. Temporal evolution of polarization difference brightness temperatures derived from SSM/I data and WSC backscattering coefficient acquired at 45° of inci...

Enlace original: https://cgspace.cgiar.org/handle/10568/28681

Investigación en Agricultura

VEGETATION

PLANT COVER

BIOMASS

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Frison, P.L. , Mougin, E. , Jarlan, L. , Karam, M.A. , Hiernaux, Pierre H.Y. , [Comparison of ERS wind-scatterometer and SSM/I data for Sahelian vegetation monitoring] , Comparison of ERS wind-scatterometer and SSM/I data for Sahelian vegetation monitoring

Journal Article 1999

The influence of vegetation pattern on the productivity, diversity and stability of vegetation: The case of 'brousse tigree' in the Sahel

Autor: Hiernaux, Pierre H.Y. Gerard, Bruno G.

Sample sites of 'brousse tigree' and related vegetation types are described for Mali and Niger. Species composition and physical structure of the herbaceous layer as well as woody plant population were recorded at all sites together with data on soils and natural resource management. Herbage yiel...

Enlace original: https://cgspace.cgiar.org/handle/10568/27967

Investigación en Agricultura

VEGETATION

PRODUCTIVITY

DIVERSIFICATION

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Hiernaux, Pierre H.Y. , Gerard, Bruno G. , [The influence of vegetation pattern on the productivity, diversity and stability of vegetation: The case of 'brousse tigree' in the Sahel] , The influence of vegetation pattern on the productivity, diversity and stability of vegetation: The case of 'brousse tigree' in the Sahel

Journal Article 1988

Vegetation monitoring by remote sensing: Progress in calibrating a radiometric index and its application in the Gourma, Mali

Autor: Hiernaux, Pierre H.Y.

Enlace original: https://cgspace.cgiar.org/handle/10568/4535

Investigación en Agricultura

REMOTE SENSING

VEGETATION

MONITORING

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Hiernaux, Pierre H.Y. , [Vegetation monitoring by remote sensing: Progress in calibrating a radiometric index and its application in the Gourma, Mali] , Vegetation monitoring by remote sensing: Progress in calibrating a radiometric index and its application in the Gourma, Mali

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