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Modelling Surface Turbulent Fluxes in Stable Conditions
Boundary-Layer Meteorology, 1978Recently published observational studies of the stable surface layer have produced several quite different prescriptions for the universal functions required by the Monin-Obukhov similarity hypothesis for the fully turbulent surface layer. Three such formulations are described and the different relationships between the surface turbulent fluxes and ...
D J Carson
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Towards the upscaling of local surface flux models
Physics and Chemistry of the Earth, 1996Abstract Estimation of regional latent and sensible heat fluxes requires the upscaling of local models. One approach is to develop soil-vegetation-atmosphere transfer (SVAT) schemes at different scales (field, catchment and regional scale; e.g. Famiglietti and Wood (1994)).
Debruyckere, L. F. A. +4 more
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Parametrizating Soil Surface Fluxes in the JULES Land Surface Model
2021<p>The parametrization of land-atmosphere interactions in numerical weather prediction and climate models is a topic of active and growing interest, especially in connection with extreme events such as heat waves and droughts. Semiarid regions are sensitive to drought and are currently expanding, but they are often poorly represented in ...
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On the representation of land surface fluxes for atmospheric modelling
Meteorology and Atmospheric Physics, 2001Numerical Weather Prediction (NWP)-models require accurate simulation of land surface fluxes. Land surface models increasingly use complex descriptions of the physical mechanisms governing land surface processes. Consequently, these models may require large numbers of soil and land surface parameters controlling the vertical fluxes. Uncertainty in land
J. D. Kalma +2 more
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SURFACE ATMOSPHERIC HEAT-FLUX ANALYSIS ON THE LETTAU MODEL
Journal of Meteorology, 1953Abstract Determinations of the turbulent flux of heat at the earth's surface are made for the period 24–25 January 1950 at Manor, Texas, with use of mean vertical gradients of air temperature and wind speed, following the Lettau model of non-isotropic turbulence.
K. H. Jehn, J. R. Gerhardt
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Spatially Distributed Surface Energy Flux Modeling
2012This chapter discusses the various models utilizing remotely sensed data for spatially distributed surface energy flux estimation. It outlines the basic principles and the corresponding approaches for estimating the different components of the energy budget (net radiation, soil heat flux, heat, sensible heat, and latent heat) and land surface ...
Wossenu Abtew, Assefa Melesse
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On comparison of modeled surface flux variations to aircraft observations
Agricultural and Forest Meteorology, 2003Evaluation of models of air–surface exchange is facilitated by an accurate match of areas simulated with those seen by micrometeorological flux measurements. Here, spatial variations in fluxes estimated with the parameterized subgrid-scale surface (PASS) flux model were compared to flux variations seen aboard aircraft above the Walnut River Watershed ...
Jie Song, M.L Wesely
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Modelling of turbulent fluxes in water surface ecosystems studies
Mathematics and Computers in Simulation, 1982Abstract The study of aquatic ecosystems has taken advantage of the development of mathematical models considered as tools applied for comprehension, simulation and prediction. But their final adjustment is connected with modelling of turbulent fluxes which interprets the mixing of various components and of biochemical kinetics.
B. Caussade +2 more
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Flux Parameterization over Land Surfaces for Atmospheric Models
Journal of Applied Meteorology, 1991Abstract In this paper a summary is given of observations and modeling efforts on surface fluxes, carried out at Cabauw in The Netherlands and during MESOGERS-84 in the south of France. Emphasis is put on those aspects that are important from a modeling point of view, e.g., surface roughness lengths for momentum and heat, stomatal resistance for ...
A. C. M. Beljaars, A. A. M. Holtslag
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The parametrization of surface fluxes in large-scale models under free convection
Quarterly Journal of the Royal Meteorological Society, 1995AbstractThis paper investigates the idea of formulating free convection in large‐scale models as a special case of forced convection. In free convection, the wind speed in the surface transfer law is related to the velocity of the large eddies in the mixed layer and is proportional to the convection velocity scale.
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