0000000000514521

AUTHOR

Y. Richard

showing 3 related works from this author

Climate variability and change : hydrological impacts

2006

TEMPERATURE DE SURFACE[SDE.MCG]Environmental Sciences/Global ChangesANALYSE EN COMPOSANTES PRINCIPALESVARIATION INTERANNUELLE[SDE.MCG] Environmental Sciences/Global Changes[ SDE.MCG ] Environmental Sciences/Global Changes[SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatology[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/ClimatologyPLUIECHANGEMENT CLIMATIQUEHYDROCLIMATCORRELATIONINTERACTION OCEAN ATMOSPHEREEL NINO[ SDU.STU.CL ] Sciences of the Universe [physics]/Earth Sciences/Climatology
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Compared regimes of NDVI and Rainfall in semi-arid regions of Africa

2006

International audience; Bi-monthly normalized difference vegetation index (NDVI) at an 8km spatial resolution from the advanced very high resolution radiometers (AVHRR) was used from 1981 to 1995 to analyse the vegetation response to rainfall supply in semi-arid regions of Africa. Within the 200-600 mm annual rainfall belt, for which the apparent NDVI response to rainfall was the strongest, three regions were selected which exhibited different patterns in their NDVI regimes and/or relationships with rainfall. The regions, located in western, southern and eastern Africa, were split into coherent sub-regions in terms of mean regime of photosynthetic activity through a cluster analysis. Overal…

SupplyrainfallevapotranspirationConcentration distribution[SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/ClimatologyCluster analysisVegetation indexvegetationRainfall ratePlant cover[ SDE.MCG.CG ] Environmental Sciences/Global Changes/domain_sde.mcg.cgannual averagespatial resolutionphotosynthesisexhibits1995high resolution[SDE.MCG.CG] Environmental Sciences/Global Changes/domain_sde.mcg.cgStructureWater use efficiencyResponsePluviometrycorrelationAfricaGeneral Earth and Planetary SciencesSemi arid zone[ SDU.STU.CL ] Sciences of the Universe [physics]/Earth Sciences/ClimatologySouthern AfricaRainy season
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Evolution rétrospective du risque gélif hivernal en climat tempéré suite au réchauffement climatique

2018

Prod 2019-139 BAP POLE EA GEAPSI INRA AGROSUP; National audience; Les modalités du réchauffement climatique sur l’Europe de l’ouest montrent pour les températures une rupture nette en 1987/1988. Deux régimes distincts de température ont eu cours de part et d’autre de cette rupture. Cela offre une opportunité pour évaluer un impact du réchauffement en Bourgogne Franche-Comté. Peu de travaux documentent néanmoins les conséquences du réchauffement hivernal sur la végétation en général et les cultures en particulier. Pourtant, ces dernières années, des travaux suggèrent une augmentation du risque gélif présentée comme un effet paradoxal du réchauffement climatique. En combinant, sur la période …

[SDE] Environmental Sciencesclimatfrost risk[SDV]Life Sciences [q-bio]risque gélifréchauffement abruptacclimationwinter[SDV] Life Sciences [q-bio][SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatology[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology[SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal BiologyhivernalacclimatationclimateComputingMilieux_MISCELLANEOUSwarming shift
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