ORCHIDEE. Physical Processes in Orchidée . Hydrological Cycle. Evapotranspiration and Sensible heat flux : Sechiba N. Ducoudré , 1993 (de Noblet ) Soil water flow and soil moisture content: P. de Rosnay (2002) Ground water flow and G roundwater : J. Polcher (2005).
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PhysicalProcesses in Orchidée
Groundwater: J. Polcher
uptake: P. de Rosnay and
J. Polcher (1998)
The simulatedsoilmoistureis the most sensitive to water uptakeparameter. This has been underlined in a study by Matthieu Guimberteau (2012)
Model forced by NLDAS dataset
I have introducedthis 2 layers Model during Hui Ding thesis (1989)
Itsinterestwas to allowpotentialevapotranspirationafter a rain.
You must keep the upper layer thinenough:
Drainage betweenupper and lower layer (A. Ducharne, 1998)
Influence of soil water holding capacity on water cycle
(A. Ducharne, 2000)
delaysmonsoononset (M. Guimberteau, 2012)
(S. Shukla, et al, 2013: irrigation has to beincluded to simulaterealisticallymonsoonsince 1960)
De Angelis et al, 2010
We have to decrease the uncertainties on drought.
PDSI index is not reliable.
Mo et al, 2011: study over USA.
Sensitivity of the Hydro Cycle, Sylvie Vérant, 2004
Resolutionincreases interception decreases, evpaorationdoes not change.
But the soilmoistureincreases
Comparisonbetween 2 versions of
Dependence on soil texture
Observation from Jason
CESE: LA GESTION ET L’USAGEDE L’EAU EN AGRICULTURE: Mai, 2013
Relation withBoundary layer:
Ek, M., and L. Mahrt, 1991: A formulation for boundary-layercloudcover. Ann. Geophys., 9, 716–724.
Holtslag, and M. Ek, 1996: Simulation of surface fluxes and boundary layer development over the pine forest in HAPEX–MOBILHY.J. Appl. Meteor., 35, 202–213.
Cheruy et al
Recycling of land precipitation:
Risi et al