6533b86cfe1ef96bd12c8b75
RESEARCH PRODUCT
HAPEX-Sahel
C. R. LloydA. TuzetP. BessemoulinPavel KabatC. J. HolwillAnne VerhoefJean-paul LhommeH. A. R. DebruinG. HarrisonThomas FriborgB. MontenyJohn MoncrieffH. BillingD. PuechJ. D. TaupinM. AmadouJohn H. C. GashJan ElbersH. SoegaardEleanor Blythsubject
Meteorologie en Luchtkwaliteitdata collectionCOUVERT VEGETAL010504 meteorology & atmospheric sciencesMeteorology and Air Quality[SDV]Life Sciences [q-bio]Observation periodWinand Staring Centre for Integrated Land Soil and Water Research0207 environmental engineeringEvaporationSoil and Water ResearchevapotranspirationPLUVIOMETRIEhydrology02 engineering and technologySensible heatSAVANEhydrologie01 natural sciencesVegetation typesVARIATION TEMPORELLEStaring CentrumevapotranspiratieTotal energy020701 environmental engineeringFLUX THERMIQUE0105 earth and related environmental sciencesWater Science and TechnologyHydrologyMILsahel15. Life on landJACHEREEVAPORATION[SDV] Life Sciences [q-bio]FACTEUR BIOTIQUEFACTEUR CLIMATIQUEVARIATION SPATIALEAvailable energyPotential evaporationWinand Staring Centre for Integrated LandBILAN ENERGETIQUETiger bushEnvironmental sciencegegevens verzamelendescription
The variation in evaporative fraction and actual evaporation is examined for three sample days in the HAPEX-Sahel Intensive Observation Period (IOP), including data from all the vegetation types and sites. The trends in evaporative fraction over the IOP are also presented for eight sites. The high rate of evaporation from bare soil in the days following rainfall produces a variability in evaporation which makes differences between sites difficult to interpret on a day-to-day basis, but over the whole IOP it is shown that the millet uses a smaller proportion of the available energy for evaporation than the tiger bush or fallow savannah. The combined effect of differences in the total energy used and its partitioning into evaporation and sensible heat flux is demonstrated from the trends in cumulative total energy use and evaporation at the three southern sites, where it is shown that there is systematically less evaporation from the millet than from the savannah or tiger bush sites. (Résumé d'auteur)
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-02-01 |