Voor bepaalde dienstverlening is inloggen noodzakelijk: een attendering op tijdschriftartikelen, attendering op onderwerp, voor het aanvragen van een tijdschriftartikel of het lenen van een boek (zie ook Inloggen/registatie).

De Hydrotheek website maakt gebruik van de Login van Bibliotheek Wageningen University & Research.

Log in
log in met uw e-mail adres, of register as a new user

Log in voor Wageningen University & Research medewerkers en studenten
Wageningen University & Research medewerkers en studenten dienen in te loggen bij Wageningen University & Research Digital Library (rechts boven). Na login bij de Digital Library sluit het venster en refresh (F5) de Hydrotheek pagina. Nu bent u met uw Wageningen University & Research account bij de Hydrotheek website ingelogd.


Record nummer 2246032
Titel artikel Sensitivity of potential evaporation estimates to 100 years of climate variability
Auteur(s) Bartholomeus, R.P. ; Stagge, J.H. ; Tallaksen, L.M. ; Witte, J.P.M.
Tijdschrifttitel Hydrology and earth system sciences discussions
Deel(Jaar)Nummer 19(2014)2
Paginering 997 - 1014
Online full text
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Hydrological modeling frameworks require an accurate representation of evaporation fluxes for appropriate quantification of, e.g., the water balance, soil moisture budget, recharge and groundwater processes. Many frameworks have used the concept of potential evaporation, often estimated for different vegetation classes by multiplying the evaporation from a reference surface (“reference evaporation”) by crop-specific scaling factors (“crop factors”). Though this two-step potential evaporation approach undoubtedly has practical advantages, the empirical nature of both reference evaporation methods and crop factors limits its usability in extrapolations under non-stationary climatic conditions. In this paper, rather than simply warning about the dangers of extrapolation, we quantify the sensitivity of potential evaporation estimates for different vegetation classes using the two-step approach when calibrated using a non-stationary climate. We used the past century’s time series of observed climate, containing non-stationary signals of multi-decadal atmospheric oscillations, global warming, and global dimming/brightening, to evaluate the sensitivity of potential evaporation estimates to the choice and length of the calibration period. We show that using empirical coefficients outside their calibration range may lead to systematic differences between process-based and empirical reference evaporation methods, and systematic errors in estimated potential evaporation components. Quantification of errors provides a possibility to correct potential evaporation calculations and to rate them for their suitability to model climate conditions that differ significantly from the historical record, so-called no-analog climate conditions.
Betrokken instanties KWR, Watercycle Research Institute
Vrije Universiteit Amsterdam
Er zijn nog geen reacties. U kunt de eerste schrijven!
Schrijf een reactie

To support researchers to publish their research Open Access, deals have been negotiated with various publishers. Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an article Open Access. A discount of 100% means that (after approval) the author does not have to pay Article Processing Charges.

For the approval of an Open Access deal for an article, the corresponding author of this article must be affiliated with Wageningen University & Research.

U moet eerst inloggen om gebruik te maken van deze service. Login als Wageningen University & Research user of guest user rechtsboven op deze pagina.