HAPEX SAHEL Information System
A joint project between LERTS, ORSTOM and CNES

Choose Data from Principal Investigator

List of Principal Investigators

• ALLEN
• Agrhymet
• BESSEMOULIN
• BROMLEY
• BROUWER
• Begue
• CHANZY
• CHOUDHURY
• COLL
• COOPER
• CULF
• CUNIN
• DE BRUIN
• DEDIEU
• DUGDALE
• EPEMA
• ESTEVES
• EYMARD
• FRANKLIN
• GALLE
• GROSJEAN
• HANAN
• HOEPFFNER
• HUETE
• KABAT
• KERR
• LEBEL
• LEDUC
• LESCH
• LEVY
• LLOYD
• MONTENY
• PEUGEOT
• PION
• PRINCE
• ROUJEAN
• SAID
• SCHMUGGE
• SOGAARD
• SPANNER
• STRICKER
• TANRE
• TUZET
• VAN OEVELEN
• VAUCLIN

List of Principal Investigators and Tables

• Simon John ALLEN
  • BARE_SOIL_EVAP_DAT : This table contains bare soil evaporation data.
  • STOMATAL_RES_DAT : This Table contains Stomatal resistance for tiger bush and fallow.

• Agrhymet
  • CILSS_DAILY_RAINFALL_91 : This Table contains the daily rainfall from the CILSS network (1991).
  • CILSS_DAILY_RAINFALL_92 : This Table contains the daily rainfall from the CILSS network (1992).

• Pierre BESSEMOULIN
  • CNRM_FLUX_DAT : This Table contains Surfaces fluxes and vegetation .
  • METEO_4M_DAT : This Table contains Meteo 4M Data from CNRM .
  • RADIO_4M_CAT : This Table contains the catalog of radiossounding campaign from 4M (Meteo France).
  • RADIO_4M_DAT : This Table contains data collected during radiossounding campaign by 4M (Meteo France).

• John BROMLEY
  • WATER_CHEMISTRY_DAT : This Table contains the Southern Supersite Rainfall and Groundwater data.
  • WATER_DEPTH_SS_DAT : This Table contains Southern Supersite Groundwater level data.

• Joost BROUWER
  • BROUWER_MILLET_DAT : This Table contains the measurement of millet dry matter production as reported by Joost Brouwer.

• Begue
  • IPAR_DAT : This Table contains calculated PAR interception of the HAPEX-Sahel sites.

• Andre CHANZY
  • DRY_BULK_DENSITY_DAT : This Table contains the dry bulk density data within the 0 - 15 cm layer.
  • GRAV_WATER_CONTENT_DAT : This Table contains the Gravimetric water content data within the 0 - 15 cm layer.
  • SURF_SOIL_MOIST_DAT : This table contains surface soil moisture collected with TDR probe.
  • VOL_WATER_CONTENT_DAT : This Table contains the Volumetric water content data within the 0 - 15 cm layer.

• Bhaskar J. CHOUDHURY
  • NS001_INV : This Table contains the inventory of NS001 sensor-perceived radiance files.
  • TIMS_INV : This Table contains the description of TIMS image files.

• César COLL
  • AVHRR_EMISSIVITY_INV : This Table contains the Inventory of emissivity and temperatures maps constructed from the AVHRR data on 25th Sep 1991.

• James David COOPER
  • SOIL_WATER_POT_DAT : This Table contains Soil Water Potential Data in the Southern Super Site.
  • SOIL_WATER_PROF_DAT : This Table contains Soil Water Profile data in the Southern Super Site.
  • SURF_WATER_CONT_DAT : This Table contains Surface Soil Water Content in the Southern Super Site.

• Alistair D. CULF
  • RADIO_IH_CAT : This Table contains the catalog of radiossounding campaign from Institut of Hydrology.
  • RADIO_IH_DAT : This Table contains data collected during radiosounding campaign by Institut Of Hydrology.

• Laurent CUNIN
  • METEOSAT_AGRHYMET_INV : This Table contains the Inventory of METEOSAT AGRHRYMET data .

• Henk A.R. DE BRUIN
  • WA_ATM_FLUX_DAT : This table contains 10 minutes average flux data.
  • WA_RADIATION_DAT : This Table contains Radiation data.
  • WA_SOIL_TEMP_1_DAT : This Table contains soil temperature profile ( degrees Celcius ).
  • WA_SOIL_TEMP_2_DAT : This Table contains soil temperature and heat flux.

• Gerard DEDIEU
  • NIAMEY_VAPOR_CONTENT : This Table contains water vapor content.
  • RADIOSONDAGE_NIAMEY : This Table contains data from daily radiosounding in Niamey.
  • SPOT_PARAMETER_DAT : This Table contains radiometric calibration coefficient for Spot images.

• George DUGDALE
  • IH_IRT_DAT : This Table contains IRT radiometry data from University of Reading
  • RAD_READING_DAT : This Table contains radiations data from University Of Reading.
  • READING_CORR_DAT : This Table contains the mean and correlation values correspanding to the heat fluxes on the fallow site over the SSS by Reading University.
  • READING_FLUX_DAT : This Table contain Calculated fluxes and scaling parameters .
  • READING_PROFILE_DAT : This Table contains temperature measurements and derived sensible heat flux by Reading University.
  • READING_SIGT_DAT : This Table contains temperature and heat flux data measured and derived by sigma method. Reading University.
  • READING_SOIL_TEMP : This Table contains the soil temperatures data, mesured at depths between -0.5cm and -60.0cm by reading university.

• Gerrit Frans EPEMA
  • MARK5_DAT : This Table contains reflectance measured by MARK V.
  • MARK5_SOIL_DESC_DAT : This Table contains description of Mark V plot.
  • MARK5_UTM_COORD_DAT : This Table contains location of Mark V Plot expressed in UTM-31 (WGS 84 Grid).

• Michel ESTEVES
  • STREAMFLOW_DAT : This Table contains stream flow data.
  • STREAMLEVEL_DAT : This Table contains pools and temporary river water level.

• Laurence EYMARD
  • ATSR_TB_DAT : This Table contains the brillance temperature data mesured from ATSR/M.

• Janet FRANKLIN
  • COMP_REFL_SDSU_DAT : This table contains component reflectance from San Diego State University.
  • SITE_REFL_SDSU_DAT : This table contains site reflectance from San Diego State University.

• Sylvie GALLE
  • NEUTRON_PROBE_CALIB_DAT : This Table contains Neutron (Nardeux SOLO 25S) Probe calibration parameters (Hv=a*RC+b, where HV=Volumetric Moisture content, cm3 cm-3, RC= count ratio).
  • NEUTRON_PROBE_DAT : This Table contains Volumetric Moisture Content measured from Neutron Probe.

• Olivier GROSJEAN
  • PORTOS_RAD2_DAT : This Table contains Collect of airborne multichannel radiometric data .

• Niall P. HANAN
  • ANDROPOGON_REFL_DAT : This Table contains the leaf-scale reflectance and transmittance for the Andropogon.
  • CHROZOPHORA_REFL_DAT : This Table contains the leaf-scale reflectance and transmittance for the Chrozophora.
  • COMB_GLUTI_REFL_DAT : This Table contains the leaf-scale reflectance for the Combretum glutinosum.
  • COMB_GLUTI_TRANS_DAT : This Table contains the leaf-scale transmittance for the Combretum glutinosum.
  • COMB_MICRAN_REFL_DAT : This Table contains the leaf-scale reflectance for the Combretum micranthum.
  • COMB_MICRAN_TRANS_DAT : This Table contains the leaf-scale transmittance for the Combretum micranthum.
  • COWPEA_REFL_DAT : This Table contains the leaf-scale reflectance and transmittance for the Cowpea (Vigna unguiculata).
  • GUIERA_REFL_DAT : This Table contains the leaf-scale reflectance for the Guiera senegalis.
  • GUIERA_TRANS_DAT : This Table contains the leaf-scale transmittance for the Guiera senegalis.
  • HERB_PROFILE_DAT : This Table contains root mass profiles of herbaceous vegetation.
  • MILLET_PROFILE_DAT : This Table contains root mass profiles of millet plants.
  • MILLET_REFL_DAT : This Table contains the leaf-scale reflectance for the millet.
  • MILLET_TRANS_DAT : This Table contains the leaf-scale transmittance for the millet.
  • PIPER_SARATOGA_DAT : This Table contains measurements of surface reflectances in the visible and near infrared and surface temperature of the HAPEX-Sahel subsites from a low altitude light aircraft.
  • SARATOGA_DAT : This Table contains measurements of surface reflectances in the visible and near infrared and surface temperature of the HAPEX-Sahel subsites from a low altitude light aircraft.

• Michel HOEPFFNER
  • METEOSAT_ORSTOM_INV : This Table contains the Inventory of METEOSAT ORSTOM Data.

• Alfredo R. HUETE
  • BDRF_SPECTRON_DAT : This table contains reflectance measured by Spectron CE590.
  • BRF_SPECTRON_DAT : This table contains the bidirectionnel reflectance measured by Spectron CE590.
  • EXO_IRT_RAD_DAT : This Table contains Exotech and IRT radiometry data.

• Pavel KABAT
  • WA_FLUX_DAT : This table contains 30 minutes average flux data.

• Yann KERR
  • ATMOSPHERIC_DAT : This Table contains Atmospheric Caracterisation for MARMOTTE measurements .
  • AVHRR_91_EXTRACT : This table contains site radiance, reflectance, and temperature statistics derived from respective level-1 HAPEX SAHEL IS satellite image products (with atmospherical correction).
  • AVHRR_92_EXTRACT : This table contains site radiance, reflectance, and temperature statistics derived from respective level-1 HAPEX SAHEL IS satellite image products (with atmospherical correction).
  • ECMWF_METEO_DAT : This Table contains the meteorological data from the CEPMMT (ECMWF) model.
  • ECMWF_PRESSURE_DAT : This Table contains the vapor content at different levels from CEPMMT (ECMWF) model.
  • ECMWF_VAPOR_CONTENT : This Table contains the vertically integrated water vapor content computed from CEPMMT (ECMWF) data.
  • ERS_94_DAT : This Table contains the pixels values for ERS.WSC.FDC product (Windscatterometer)
  • ERS_94_INV : This Table contains the inventory of ERS_WSC_DAT ( ERS Wind Scatterometer data ).
  • ERS_WSC_DAT : This Table contains the pixels values for ERS.WSC.FDC product (Windscatterometer)
  • ERS_WSC_INV : This Table contains the inventory of ERS_WSC_DAT ( ERS Wind Scatterometer data ).
  • RADIOSONDAGE_NIAMEY_92 : This Table contains data from daily radiosounding in Niamey in 1992.
  • RADIO_TEMP_DAT : This Table contains Radiometric Brightness Temperature data for MARMOTTE measurements .
  • ROUGH_SURF_DAT : This Table contains Surface Roughness Informations for MARMOTTE Measurements .
  • SOIL_MOIST_DAT : This Table contains Surface Soil Moisture data for MARMOTTE measurements .

• Thierry LEBEL
  • EPSAT_DAILY_RAINFALL_91 : This Table contains the daily rainfall from the EPSAT network (1991).
  • EPSAT_DAILY_RAINFALL_92 : This Table contains the daily rainfall from the EPSAT network (1992).

• Christian LEDUC
  • PIEZOMETRIC_DAT : This Table contains the data collected during the piezometric measurements campaigns related to the continental terminal3 water table on the hapex square degree north of the niger river.
  • PIEZOMETRIC_SUM : This Table contains the summary of piezometric_dat table.
  • WATER_CHEMICAL_DAT : This Table contains the result of chemical analyses related to the continental terminal3 water table on the hapex square degree north of the niger river.

• Lutz LESCH
  • FUB_ALB_SPEC_DAT : This Table contains spectral Albedo data over Millet and rassland.
  • FUB_BOWEN_DAT : This table contains energy fluxes from Campbell Bowen system. ( Energy budget measurements over grassland and millet).
  • FUB_EDDY_CORR_DAT : This Table contains Eddy correlation fluxes over degraded fallow Bush.
  • FUB_FLUX_CORR_DAT : This Table contains the Eddy correlation fluxes over the degraddedflow bush.
  • FUB_IRT_RAD_DAT : This Table contains the surface temperature dataover millet and grassland.
  • FUB_SOIL_TEMP_DAT : This Table contains Exotech and IRT radiometry data.
  • FUB_TFMAS_DAT : This Table contains dry and wet bulb temperature from mast over the degraded falow bush.WCSS subsite d.
  • FUB_WIND_SPD_DAT : This Table contains wind speed data over the degraded falow bush.WCSS subsite d.

• Peter LEVY
  • GUIERA_2_STRUCTURE_DAT : This Table contains the SS-F Guiera Structure Data .
  • LAI_BIOMASS_DAT : This Table contains the SS-F Leaf Area Index and Biomass data .
  • MILLET_3_STRUCTURE_DAT : This Table contains SS-Millet Structure Data.
  • SPECIES_COMP_DAT : This Table contains SS-F Species composition.
  • VERTICAL_MILLET_STRUC_DAT : This Table contains SS-Millet Vertical Structure Data.

• C.R. LLOYD
  • FALLOW_IRT_IHWAL : This Table contains Fallow site surface temperatures.
  • FAL_WEATHER_RAD_DAT : This Table contains fallow bush automatic weather station and radiation data .
  • MILLET_HYD_IHWAL : This Table contains surface flux data by Institute of hydrology.Eddy correlation system.Super site Millet site.
  • MILLET_IRT_IHWAL : This Table contains Millet site surface temperatures.
  • MIL_WEATHER_RAD_DAT : This Table contains Millet automatic weather station and radiation data .
  • TIGER_HYD_IHWAL : This Table contains surface flux data by Institute of hydrology.Eddy correlation system.Super site Tiger Bush site.
  • TIGER_IRT_IHWAL : This Table contains Tiger site surface temperatures.
  • TIG_WEATHER_RAD_DAT : This Table contains Tiger bush automatic weather station and radiation data .

• Bruno MONTENY
  • BM_FLUX_DAT : This Table contain fluxes measured by Dr. B. Monteny.
  • CLIMAT_91_DAT : This table contains Climatic data (1991).
  • CLIMAT_92_DAILY_DAT : This table contains daily climatic data (1992).
  • CLIMAT_92_DAT : This table contains hourly climatic data (1992).
  • CW_RAD_DAT : This Table contains Central East Site ground radiometric measurements.
  • CW_TRANSECT_RAD_DAT : This Table contains Central East Site transect ground radiometric measurements.

• Christophe PEUGEOT
  • TANK_DISCHARGE : This Table contains tank discharge measurement.
  • TANK_RUNOFF_DAT : This Table contains tank runoff measurement.

• J.C. PION
  • ATSR_SST_INV : This Table contains the inventory of ATSR Data images.
  • GSTS_EMISSIV_DAT : This Table contains the emissivity data collected by the GSTS
  • GSTS_RAD_2_DAT : This Table contains data relative to the Transect in the Spectral Band ( 10.5 - 12.5 micro m ) .
  • GSTS_RAD_DAT : This Table contains data relative to Visible and Near Infra Red from GSTS .

• Stephen D. PRINCE
  • GUIERA_BIOMASS_DAT : This Table contains Guiera leaf biomass and leaf LAI.
  • GUIERA_STRUCTURE_DAT : This Table contains Guiera senegalensis structure.
  • HERB_BIOMASS_DAT : This Table contains herb biomass and herb LAI.
  • HERB_STRUCTURE_DAT : This Table contains the herb layer structure data.
  • LEAF_WATER_POT_DAT : This Table contains Pre-dawn Leaf Water Potential in the West Central Supersite.
  • MILLET_BIOMASS_DAT : This Table contains millet biomass.
  • MILLET_STRUCTURE_DAT : This Table contains Millet crop structure.
  • PLANT_WATER_CONTENT_DAT : This Table contains Hapex Central Site Plant Water Content 1992.
  • SUN_PHOTOMETER_DAT : This Table contains WC Sun Photometer Measurements.
  • WC_POROMETER_DAT : This Table contains West Central Site Porometer measurements ( UM team ).

• Jean-Louis ROUJEAN
  • RAD_PROP_DAT : This table contains radiative properties on different site (Bush-Grassland, grassland....).

• Frederique SAID
  • ARAT_FLUXES_10_DAT : This Table contains Aircraft mean values (10 secondes) of various atmospheric parameters by ARAT.
  • ARAT_MERL_FSA_DAT : This Table contains the ARAT and MERLIN measurments of surface fluxes and fluxes through the whole depth of the boundary layer.
  • MERLIN_FLUXES_10_DAT : This Table contains Aircraft mean values (10 secondes) of various atmospheric parameters by MERLIN IV.

• Thomas J. SCHMUGGE
  • PBMR_SCHMG_DAT : This Table contains the merged GPS and PBMR data from c-130 aircraft.

• Henrik SOGAARD
  • ABS_HUMIDITY_DAT : This Table contains the Absolute Humidity in the Dangouy Goro Area.
  • CO2_FLUX_DAT : This Table contains the CO2 flux data in the Fandou Beri and Dangouy Goro area.
  • CO_CLIMAT_DAT : This Table contains the Climat Data for Fandou Beri Area.
  • CO_GROUND_HEAT_FLUX_DAT : This Table contains Ground Heat Flux data.
  • CO_LATENT_HEAT_FLUX_DAT : This Table contains Latent Heat Flux data .
  • CO_PAR_DAT : This Table contains Photosynthetic Active Radiation Data ( PAR ).
  • CO_WIND_SPEED_DAT : This Table contains the Wind Speed Data ( 4 Levels ).
  • FB_SAP_FLOW_DAT : This Table contains the Sap Flow Data for the Fandou Beri Area.
  • LEAF_AREA_INDEX_DAT : This Table contains the Leaf Area Index (LAI) in the Fandou Beri and Dangouy Goro.
  • MILLET_2_STRUCTURE_DAT : This Table contains the Structure of Millet Clump in Dangouy Gourou Area.

• Michael SPANNER
  • ATSP_DAT : This table contains aerosol optical properties measured from Airborne Tracking Sunphotometer (ATSP).
  • FIELD_SUN_PHOTOMETER_DAT : This table contains aerosol optical properties measured from ground Sunphotometers.

• Han STRICKER
  • SOIL_MOIS_NEUT_PROB : This Table contains soil moisture profiles in WCS by neutron probe
  • SOIL_MOIS_TDR_CAL : This Table contains soil moisture profiles in WCS by TDR (Time Domain Reflectometry).
  • SOIL_SUCTION_CWS : This Table contains soil suction profiles in site CWS.

• Didier TANRE
  • OPTICAL_THICKNESS_DAT : This table contains optical thickness data at 450 nm.
  • POLDER_INV : This Table contains the inventory of POLDER images.

• Andree TUZET
  • SOIL_HEAT_DAT : This Table contains soil heat data ( average on 30 mn for all measurements ).

• Peter J. VAN OEVELEN
  • AVG_SOIL_MOIST_DAT : This Table contains the Average Soil Moisture values for all the measurement locations per subtransect coinciding with the PBMR flights.
  • ROUGHNESS_DAT : This Table contains roughness data from a needle board.

• Michel VAUCLIN
  • SOIL_SURF_TRIMS_DAT : This Table contains Soil Surface TRIMS (Triple Ring Infiltrometer at multiple Sections) infiltration tests , Central Site East.

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