Results 41 to 50 of about 81,196 (301)

Sensible Heat Flux Measurements Near A Cold Surface [PDF]

open access: yes, 1995
Abstract : A unidirectional sonic anemometer with a fine wire thermocouple in conjunction with a hot film anemometer were employed to measure the turbulent fluctuating velocities of w', u' and the fluctuating temperature T'. Covariances were evaluated to compute the turbulent heat flux and the friction velocity.
openaire   +1 more source

Ozone exchange within and above an irrigated Californian orchard [PDF]

open access: yes, 2020
In this study, the canopy effects on the vertical ozone exchange within and above Californian orchard are investigated. We examined the comprehensive dataset obtained from the Canopy Horizontal Array Turbulence Study (CHATS).
Brown, J. S.   +7 more
core   +2 more sources

Micrometeorology and heat balance over the fast ice

open access: yesAntarctic Record, 1997
Micrometeorological conditions were observed over fast ice with overlying thick snow cover and underlying deep sea approximately in the center of Ongul Strait in Lutzow-Holm Bay, Antarctica, from the end of March to the beginning of December in 1990.
Kiyotaka Nakagawa
doaj   +1 more source

Long-term daily dataset of surface sensible heat flux and latent heat release over the Tibetan Plateau based on routine meteorological observations

open access: yesBig Earth Data, 2022
As the main components of the atmospheric heat source/sink over the Tibetan Plateau (TP), up-to-date spatiotemporal fields of surface sensible heat flux and latent heat release by precipitation are vital for investigating the local land–atmosphere ...
Anmin Duan   +4 more
doaj   +1 more source

Consistency between hydrological model, large aperture scintillometer and remote sensing based evapotranspiration estimates for a heterogeneous catchment [PDF]

open access: yes, 2012
The catchment averaged actual evapotranspiration rate is a hydrologic model variable that is difficult to quantify. Evapotranspiration rates - up till present - cannot be continuously observed at the catchment scale.
Bink, Niek-Jan   +5 more
core   +2 more sources

Long-Time Variation and Mechanism of Surface Energy Budget Over Diverse Geographical Regions in Pakistan

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Earth's energy budget is a major force that drives global climate. The long-term pattern of land surface energy budget with pronounced biophysical effects on climate was normally ignored at a regional scale, particularly in Pakistan.
Usman Mazhar   +5 more
doaj   +1 more source

Estimation of Sensible and Latent Heat Fluxes from Different Ecosystems Using the Daily-Scale Flux Variance Method

open access: yesAtmosphere
A daily-scale flux variance (FV) method, which employs low-frequency air temperature measurements, was assessed against eddy covariance (EC) measurements of sensible and latent heat fluxes at four sites representing grassland and cropland ecosystems. The
Yanhong Xie   +6 more
doaj   +1 more source

The Impact of Biomass Heat Storage on the Canopy Energy Balance and Atmospheric Stability in the Community Land Model

open access: yesJournal of Advances in Modeling Earth Systems, 2019
Atmospheric models used for weather prediction and future climate projections rely on land models to calculate surface boundary conditions. Observations of near‐surface states and fluxes made at flux measurement sites provide valuable data with which to ...
Sean C. Swenson   +2 more
doaj   +1 more source

Nonequilibrium thermodynamics of circulation regimes in optically-thin, dry atmospheres [PDF]

open access: yes, 2013
An extensive analysis of an optically-thin, dry atmosphere at different values of the thermal Rossby number Ro and of the Taylor number Ff is per- formed with a general circulation model by varying the rotation rate {\Omega} and the surface drag {\tau ...
Adams   +105 more
core   +2 more sources

Surface renewal method for estimating sensible heat flux

open access: yesWater SA, 2010
For short canopies, latent energy flux may be estimated using a shortened surface energy balance from measurements of sensible and soil heat flux and the net irradiance at the surface. The surface renewal (SR) method for estimating sensible heat, latent energy, and other scalar fluxes has the advantage over other micrometeorological methods since the ...
Mengistu, MG, Savage, MJ
openaire   +4 more sources

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