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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Geographical, biological and remote sensing aspects of the hydrologic atmospheric pilot experiment in the sahel (HAPEX-Sahel)
Remote Sensing of Environment, Volume 51, No. 1, Year 1995
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Description
Hapex Sahel (Hydrologic Atmospheric Pilot Experiment in the Sahel) was an international program focused on the soil-plant-atmosphere energy, water and carbon balance in the west African Sahel. It was intended to improve our understanding of the interaction between the Sahel and the general atmospheric circulation, both at present and in the future, providing a base line for studies of climate change. It was carried out in a 1° × 1° area of west Niger over a 3-4 year period with an 8-week intensive observation period from August to October 1992. HAPEX-Sahel was funded by a wide range of agencies in seven participating countries. Over 170 scientists visited and worked in the field. An interdisciplinary approach was adopted with contributed studies in hydrology and soil moisture, surface fluxes and vegetation, remote sensing science, and meteorology and mesoscale modeling. Detailed field measurements were concentrated at 3 "supersites" and 3 ancillary sites. Four aircraft were used for remote sensing and flux measurement. Observations from space were acquired from nine sensors on seven different satellite platforms. Conditions in 1992 turned out to be average for the last decade with good gradients of precipitation and a variety of vegetation productivities between the study sites. An information system has been established to provide a data base to disseminate the measurements. An active program of meetings, workshops, and interdisciplinary studies is now in progress. © 1995.
Authors & Co-Authors
Prince, Stephen D.
Unknown Affiliation
Kerr, Yann H.
Unknown Affiliation
Goutorbe, J. P.
Unknown Affiliation
Lebel, Thierry
Unknown Affiliation
Tinga, A.
Unknown Affiliation
Bessemoulin, Pierre
Unknown Affiliation
Brouwer, Joost
Unknown Affiliation
Dolman, A. Johannes
Unknown Affiliation
Engman, E. T.
Unknown Affiliation
Gash, J. H.C.
Unknown Affiliation
Hoepffner, M.
Unknown Affiliation
Kabat, P.
Unknown Affiliation
Monteny, Bruno A.
Unknown Affiliation
Saïd, Frederique
Unknown Affiliation
Sellers, P. J.
Unknown Affiliation
Wallace, J. S.
Unknown Affiliation
Statistics
Citations: 147
Authors: 16
Affiliations: 13
Identifiers
Doi:
10.1016/0034-4257(94)00076-Y
ISSN:
00344257
Research Areas
Environmental
Study Approach
Quantitative
Study Locations
Niger