Results 1 to 10 of about 157,947 (293)

Interannual variation of the Bowen ratio in a subtropical coniferous plantation in southeast China, 2003-2012. [PDF]

open access: yesPLoS ONE, 2014
The interannual variation of the Bowen ratio, through its effect on the warming extent of available energy to the ecosystem land surface air, heavily influences the ecosystem microclimate and affects the hydrological cycle at both regional and global ...
Yakun Tang   +3 more
doaj   +2 more sources

A new method to measure Bowen ratios using high-resolution vertical dry and wet bulb temperature profiles [PDF]

open access: yesHydrology and Earth System Sciences, 2014
The Bowen ratio surface energy balance method is a relatively simple method to determine the latent heat flux and the actual land surface evaporation. The Bowen ratio method is based on the measurement of air temperature and vapour pressure gradients. If
T. Euser   +5 more
doaj   +4 more sources

Guidelines for validating Bowen ratio data [PDF]

open access: yesTransactions of the ASAE, 2003
For a variety of reasons, the measurement of latent heat flux using the Bowen ratio method can sometimes result in erroneous data. This study provides guidelines for detecting erroneous Bowen ratio data and illustrates the application of these guidelines
Allen, R. G.   +3 more
core   +4 more sources

Atmospheric Boundary-Layer Dynamics with Constant Bowen Ratio [PDF]

open access: yesBoundary-Layer Meteorology, 2018
Motivated by the observation that the diurnal evolution of sensible and latent heat fluxes tends to maintain a constant Bowen ratio, we derive approximate solutions of the ordinary differential equations of a simplified atmospheric boundary-layer (ABL ...
Porporato, Amilcare
core   +3 more sources

Emergent constraints on the hydrological impacts of land use and land cover change [PDF]

open access: yesNature Communications
Land use and land cover changes have substantial effects on the terrestrial water cycle, but their sign and magnitude remain elusive at large scales. State-of-the-art Earth system models disagree on how these changes affect terrestrial evapotranspiration.
Zefeng Chen   +3 more
doaj   +2 more sources

Intercomparison of sensible and latent heat flux measurements from combined eddy covariance, energy balance, and Bowen ratio methods above a grassland prairie [PDF]

open access: yesScientific Reports
We present a comparison of four different methods of measuring sensible (H) and latent (LE) heat fluxes for a year over a mixed grass prairie ecosystem in the Nebraska SandHills [eddy covariance (EC), energy balance/Bowen ratio (EBBR), residual energy ...
D. P. Billesbach   +2 more
doaj   +2 more sources

Technical note: Using distributed temperature sensing for Bowen ratio evaporation measurements [PDF]

open access: yesHydrology and Earth System Sciences, 2018
Rapid improvements in the precision and spatial resolution of distributed temperature sensing (DTS) technology now allow its use in hydrological and atmospheric sciences.
B. Schilperoort   +6 more
doaj   +8 more sources

Validating Evapotranspiraiton Equations Using Bowen Ratio in New Brunswick, Maritime, Canada [PDF]

open access: yesSensors, 2008
Three methods including the Penman-Monteith (PM), Priestley-Taylor (PT), and 1963 Penman equation (PE) for calculating daily reference evapotranspiration (ETo) were evaluated in the Maritime region of Canada with the data collected from 2004 to 2007.
John Monteith   +5 more
doaj   +3 more sources

Estimating Bowen ratio in local environment based on satellite imagery

open access: yesOpen Geosciences
This study presents a remote sensing approach to estimating the Bowen ratio (BR), focusing on its application across landscapes in a small-scale region of Olomouc, Czech Republic.
Pohanková Tereza, Pechanec Vilém
doaj   +2 more sources

Bowen‐Ratio Comparisons with Lysimeter Evapotranspiration [PDF]

open access: yesAgronomy Journal, 1997
AbstractWater use in agriculture by different cropping systems is of interest in determining crop water use efficiency of different tillage practices that will lead to reduced crop production risk. Lysimeters are considered the standard for evapotranspiration (ET) measurements; however, these units are often not replicated and are few in number at any ...
John H. Prueger   +3 more
openaire   +2 more sources

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