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| Titel |
Modeling soil surface energy fluxes from solar radiation, latent heat, and surface plus air temperature measurements |
| VerfasserIn |
Edgar Pavia |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250054139
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| Zusammenfassung |
| We determine experimentally the full surface energy fluxes in a tray of wet soil by means of the surface energy balance: R = H + L + G, where R is the net radiation to the surface, H is the sensible heat flux, L is the latent heat flux, and G is the heat flux into the surface. We use a meteorological station to measure total solar radiation (Rt), and air temperature (TA) plus soil surface temperature (TS); in addition to a microlysimeter to estimate evaporation (L). We make use of the bounds of net solar radiation (that is: Rt > R > L), a mean value for the proportionality constant of sensible heat (B; that is: H = B [TS – TA]), and the residual for the heat flux into the surface (that is: G = R – [H + L]). The model is verified for the mean daily value of G giving acceptable results. |
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