| Tittel: | Representation of catchment hydrology, water balance, runoff and discharge in the JULES and SURFEX land surface models | | Ansvar: | authors: Tuomo Saloranta | | Forfatter: | Saloranta, Tuomo  | | Materialtype: | NVEs utgivelser | | Signatur: | 556(05) | | Utgitt: | Oslo : NVE, 2011 | | Omfang: | 26 s. - ill. | | ISBN/ISSN: | 978-82-410-0740-8 / 1502-3540 | | Klassenummer: | 556.3.01 | | Serie: | NVE Report ; 2011:1 | | Emneord: | Grunnvannshydrologi / Hydrologiske modeller / Litteraturstudier / Overflatehydrologi | | Note: | Har bibliografi | | Innhold: | Sammendrag: In this literature study the representation of hydrological processes
in the land surface models JULES and SURFEX are reviewed. The main focus in
JULES and SURFEX is on simulating vertical exchanges of water, heat and carbon
at the land surface, and coupling these fluxes with operational weather prediction
and climate models. Both models can be used also in offline applications in e.g.
hydrology and vegetation monitoring. This report is structured around the terms in
the generic catchment water balance equation (i.e. precipitation,
evapotranspiration, stream outflow, ground-water flow and water storage)
emphasizing the models’ capability to handle runoff production in a defined
catchment and routing of that water to the catchment outlet. This is an important
feature since usually hydrological models are calibrated and evaluated against
discharge data measured at the (sub-)catchment outlet. JULES and SURFEX do not
to differ fundamentally in the way and level of detail the hydrological processes are
formulated in these models, although SURFEX seems to provide some more options
for the user to select between different schemes of soil processes and
discretizations. Both JULES and SURFEX models simulate snow and soil ice
processes which are needed to properly simulate Nordic hydrological conditions.
The water balance can be closed in both models, except for evaporation from lake
surfaces which does not draw on any conserved water stores. In principle, it is
possible to extract variables describing the hydrological cycle from e.g. the UM or
HARMONIE weather prediction model runs, of which JULES and SURFEX are,
respectively, parts of | | Eier: | NVE | | Eksemplar: | 2. (2 tilgjengelige) | | |
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| 1.ex | Tilgjengelig | | NVE | NVE-biblioteket | | 556(05) | | | 2.ex | Tilgjengelig | | NVE | NVE-biblioteket | | 556(05) | |
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