Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Two models for estimation of the roughness height for heat transfer between the land surface and the atmosphere
Su, Z. ; Schmugge, T. ; Kustas, W.P. ; Massman, W.J. - \ 2001
In: ENVISAT - land surface processes / Su, Z., Roerink, G.J., Delft : BCRS (USP-2 Rep 01-07) - p. 55 - 80.
remote sensing - aardoppervlak - atmosfeer - klimaat - meteorologie
An evaluation of two models for estimation of the roughness height for heat transfer between the land surface and the atmosphere
Su, Z. ; Schmugge, T. ; Kustas, W.P. ; Massman, W.J. - \ 2001
Journal of Applied Meteorology 40 (2001)11. - ISSN 0894-8763 - p. 1933 - 1951.
atmosfeer - bodemfysica - landoppervlak - meteorologie
Roughness height for heat transfer is a crucial parameter in estimation of heat transfer between the land surface and the atmosphere. Although many empirical formulations have been proposed over the past few decades, the uncertainties associated with these formulations are shown to be large, especially over sparse canopies. In this contribution, a simple physically based model is derived for the estimation of the roughness height for heat transfer. This model is derived from a complex physical model based on the "localized near-field" Lagrangian theory. This model (called Massman's model) and another recently proposed model derived by fitting simulation results of a simple multisource bulk transfer model (termed Blümel's model) are evaluated using three experimental datasets. The results of the model performances are judged by using the derived roughness values to compute sensible heat fluxes with the bulk transfer formulation and comparing these computed fluxes to the observed sensible heat fluxes. It is concluded, on the basis of comparison of calculated versus observed sensible heat fluxes, that both the current model and Blümel's model provide reliable estimates of the roughness heights for heat transfer. The current model is further shown to be able to explain the diurnal variation in the roughness height for heat transfer. On the basis of a sensitivity analysis, it is suggested that, although demanding, most of the information needed for both models is amendable by satellite remote sensing such that their global incorporation into large-scale atmospheric models for both numerical weather prediction and climate research merits further investigation.
Length-scale analysis of surface albedo, temperature, and normalized difference vegetation index in desert grassland
Pelgrum, H. ; Schmugge, T. ; Rango, A. ; Ritchie, J. ; Kustas, B. - \ 2000
Water Resources Research 36 (2000)7. - ISSN 0043-1397 - p. 1757 - 1765.
Airborne microwave radiometty on a semi-arid area during HAPEX-Sahel.
Chanzy, A. ; Schmugge, T.J. ; Calvet, J.C. ; Kerr, Y. ; Oevelen, P. van; Grosjean, O. ; Wang, J.R. - \ 1997
Journal of Hydrology 188-189 (1997). - ISSN 0022-1694 - p. 285 - 309.
Mapping soil water content, Chapter 4
Oevelen, P.J. van; Hoekman, D.H. ; Feddes, R.A. ; Menenti, M. ; Schmugge, T. - \ 1995
In: Mesoscale climate hydrology: earth observation system - definition phase / Menenti, M., Bastiaanssen, W.G.M., Delft : BCRS - p. 48 - 64.
Surface soil moisture maps using airborne PBMR and portos measurements in Hapex Sahel.
Chanzy, A. ; Kerr, Y. ; Oevelen, P.J. van; Schmugge, T. - \ 1994
In: Eur. Geophys. Soc. Part 2: Oceans, atmosphere, hydrology & nonlinear geophysics. Vol. 12, Grenoble - p. C339 - C339.
Fluxes in the surface layer under advective conditions.
DeBruin, H.A.R. ; Bink, N.J. ; Kroon, L.J.M. - \ 1991
In: Land surface evaporation / Schmugge, T.J., André, J.C., - p. 157 - 171.
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