Search results for "spatial variation"

showing 3 items of 13 documents

Determinants of the interannual relationships between remote sensed photosynthetic activity and rainfall in tropical Africa

2007

International audience; The response of photosynthetic activity to interannual rainfall variations in Africa South of the Sahara is examined using 20 years (1981-2000) of Normalised Difference Vegetation Index (NDVI) AVHRR data. Linear correlations and regressions were computed between annual NDVI and annual rainfall at a 0.5° latitude/longitude resolution, based on two gridded precipitation datasets (Climate Prediction Center Merged Analysis of Precipitation [CMAP] and Climatic Research Unit [CRU]). The spatial patterns were then examined to detect how they relate to the mean annual rainfall amounts, land-cover types as from the Global Land Cover 2000 data set, soil properties and soil typ…

rainfall use efficiencyNDVIinterannual variabilitySoil ScienceLand coverprecipitationSpatial distributionNormalized Difference Vegetation IndexLatituderemote sensing[SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatologyland coverVegetation indexvegetationRainfall rateWest Africa[ SDE.MCG.CG ] Environmental Sciences/Global Changes/domain_sde.mcg.cgSpatial distributionPrecipitationComputers in Earth SciencesclimateClimatic conditionphotosynthesisspatial variations[SDE.MCG.CG] Environmental Sciences/Global Changes/domain_sde.mcg.cgGeologyVegetationAridClimatic dataClimatologysoil propertiescorrelationAfricaSpatial ecologyEnvironmental sciencesoil typesregression[ SDU.STU.CL ] Sciences of the Universe [physics]/Earth Sciences/ClimatologySouthern Africafire
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SEISMIC NOISE ANALYSIS OF BROADBAND STATIONS OF THE ITALIAN SEISMIC NETWORK, USING POWER SPECTRAL DENSITY

2022

seismic stationSeismic noiseBackground seismic noiseItalian Seismic Network.BroadbandItalian seismic noiseSpatial variation Italian noise
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Visualizing, measuring and mapping the spatial variations of simulation results in the course of time

2015

International audience

spatial variations[SHS.GEO] Humanities and Social Sciences/Geography[SHS.GEO]Humanities and Social Sciences/GeographyComputingMilieux_MISCELLANEOUStime[ SHS.GEO ] Humanities and Social Sciences/Geography
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