Journal ArticleDOI
Objective Criteria for Rejecting Data for Bowen Ratio Flux Calculations
TLDR
In this article, the Bowen ratio energy balance method often produces totally unacceptable sensible and latent heat fluxes: wrong signs (directions) and extremely inaccurate magnitudes of the fluxes, or both.Abstract:
In addition to the inherent problem of accumulating errors of measurement of net radiation and subsurface heat flux, the Bowen ratio energy balance method often produces totally unacceptable sensible and latent heat fluxes: wrong signs (directions) and extremely inaccurate magnitudes of the fluxes, or both. These problems are due to resolution limits of the instruments. Objective criteria to eliminate undesirable data are derived in general forms. An example is graphically presented for the common case of the psychometric tower with a 0.05°C resolution limit of temperature measurement.read more
Citations
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Journal ArticleDOI
Evapotranspiration information reporting: I. Factors governing measurement accuracy
TL;DR: In this article, the authors present a two-part series of recommendations for documentation to be associated with published evapotranspiration (ET) data and provide guidelines for reducing error in ET retrievals.
Journal ArticleDOI
Estimation of evaporative fraction from a combination of day and night land surface temperatures and NDVI: A new method to determine the Priestley-Taylor parameter
TL;DR: In this article, the thermal inertia method and the Ts-normalized difference vegetation index (NDVI) were used to estimate global or regional evapotranspiration (ET) or evaporative fraction (EF) of the surface total net radiation budget.
Journal ArticleDOI
Carbon dioxide fluxes in a semiarid environment with high carbonate soils
TL;DR: In this article, Bowen ratio systems were used to measure CO 2 fluxes from a brush and a grass community with different soil types over 4 years in southeastern Arizona, and the authors concluded that the source of carbon for the measured annual losses from these sites was from the large inorganic carbon pool with carbon cycling through both the organic and inorganic pools at the sites.
Journal ArticleDOI
Water and solute transfer between a prairie wetland and adjacent uplands, 1. Water balance
TL;DR: In this article, the authors studied a small catchment in Saskatchewan, Canada, to evaluate the mechanisms of water and solute transfer between the wetland and the surrounding upland, where detailed measurements of hydrologic processes (precipitation, runoff, evapotranspiration and subsurface flow) and chloride distribution are combined to improve the estimate of the transfer flux.
Journal ArticleDOI
Assessment of reliability of Bowen ratio method for partitioning fluxes.
TL;DR: In this article, the errors associated with the Bowen ratio energy balance (BREB) method are analyzed, to determine analytically the reliable values of the Bowen ratios and of the latent and sensible heat fluxes.
References
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Journal ArticleDOI
The Ratio of Heat Losses by Conduction and by Evaporation from any Water Surface
TL;DR: In this paper, it was shown that the process of evaporation and diffusion of water vapor from any water surface into the body of air above it is exactly similar to that of the conduction or diffusion of specific heat energy from the water surface to the same body of water.
Journal ArticleDOI
Error analysis of bowen ratios measured by differential psychrometry
Marcel Fuchs,C. B. Tanner +1 more
TL;DR: In this paper, 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.
Journal ArticleDOI
The diabatic wind profile
TL;DR: In this paper, wind profiles observed at various locations are compared with wind profiles predicted by Ellison on the basis of similarity theory, and it is shown that theory and observations agree well for near-neutral and unstable air; however, factors not considered in the similarity theory may become important.
Journal ArticleDOI
Lysimetric Calibration of the Bowen Ratio-Energy Balance Method for Evapotranspiration Estimation in the Central Great Plains
TL;DR: In this article, the authors evaluate the performance of the Bowen Ratio Energy Balance (BREB) technique in the climatic conditions characteristic of the central Great Plains, a region where a significant proportion of the energy consumed by evapotranspiration is supplied from advected sensible heat.
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