Results 251 to 260 of about 158,332 (294)

Performance of Bowen ratio systems on a slope

Agricultural and Forest Meteorology, 1992
Abstract The Bowen ratio energy balance technique was used to assess the energy fluxes on inclined surfaces in several recent surface-atmosphere interaction studies. Since air flow over a sloping surface may differ from that over a flat terrain, it is important to examine whether Bowen ratio measurements taken on sloping surfaces are valid.
D. Nie, I.D. Flitcroft, E.T. Kanemasu
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The Story behind the Bowen Ratio

Bulletin of the American Meteorological Society, 1995
Ira Sprague Bowen (1898–1973) was a prominent astrophysicist during the twentieth century. In his impressive oeuvre of work over the 50-year span (1920–70), there appears a lone contribution to the geophysical sciences on the subject of evaporation and conduction from water surfaces.
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A Physical Bound on the Bowen Ratio

Journal of Climate and Applied Meteorology, 1987
Abstract Forbidding supersaturation above an evaporating water (or sublimating ice) surface fixes an upper bound on β, the Bowen ratio; a similar bound holds for evaporation from unsaturated surfaces. The bound arises from the nonlinearity of the temperature dependence of saturated water vapor density. The resulting inequalities are compared with other
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Spatial Averaging Bowen Ratio System: Description and Lysimeter Comparison

Transactions of the ASAE, 1992
Bowen ratio energy balance (BREB) measurements near a spatially divergent surface may not correctly partition energy fluxes when simply sampling over time. Thus, a Bowen ratio system was designed and constructed to perform spatial sampling and then evaluated by comparison to a precision weighing lysimeter at Bushland, Texas.
null W. C. Bausch, null T. M. Bernard
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On the Bowen Ratio and Surface Temperature at Sea

Journal of Physical Oceanography, 1977
Gradients of temperature and humidity above water surfaces are analyzed in order to determine the dependence of the long-term average Bowen ratio ..beta.. (the ratio of sensible to latent heat flux) on surface temperature. The least-squares fit that results from investigation of six such bodies of data, and which is supported by recent direct ...
B. B. Hicks, G. D. Hess
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Further note on evaporation with fluctuating bowen ratio

Journal of Geophysical Research, 1964
In an earlier note [Webb, 1960a] a correction for the effect of fluctuating Bowen ratio on heat-budget estimates of evaporation from a land or water surface was derived, making use of subsidiary measurement of wind. The correction was found to be about 5 per cent during a summer-autumn investigation at Lake Eucumbene, southeast Australia [Webb, 1960b].
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On estimating evaporation with fluctuating Bowen ratio

Journal of Geophysical Research, 1960
The correction for the effect of fluctuating Bowen ratio on heat-budget estimates of evaporation is derived. In an investigation during late summer and autumn at Lake Eucumbene (southeast Australia), the correction amounted to about 5 per cent.
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Error analysis of bowen ratios measured by differential psychrometry

Agricultural Meteorology, 1970
Abstract The error analysis of evaporation measurements by the energy balance/Bowen ratio method, based on differential psychrometry, indicates that the contribution of wet and dry-bulb temperature measurement errors is directly proportional to the Bowen ratio.
M. Fuchs, C.B. Tanner
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Comparative Performance of Two Reversing Bowen Ratio Measurement Systems

Journal of Atmospheric and Oceanic Technology, 1987
Abstract This paper reports on the results of a comparative experiment between two Bowen ratio measurement systems conducted at the Petawawa National Forestry Institute, Chalk River, Ontario, in 1985. Both systems interchange the positions of the psychrometers in the vertical.
J. H. McCaughey, D. W. Mullins, M. Publicover   +2 more
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Comparison mass-balance, bulk aerodynamic and bowen ratio methods

Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere, 1999
Abstract Evaporation from a shallow lake in central Sweden was estimated using oxygen-18 mass balance, bulk-aerodynamic and Bowen ratio methods, to access the feasibility of isotope method in Scandinavian conditions. The isotope method accounted for the isotopic non-steady state of lake-water. Oxygen-18 content i.e.
R.K. Saxena, C. Jaedicke, L.-C. Lundin
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