Results 1 to 10 of about 13,992 (262)

HEAT FLUX IN SANDY SOIL AND ITS RELATIONS WITH SOIL AND AIR TEMPERATURE [PDF]

open access: yesFayoum Journal of Agricultural Research and Development, 2017
A heat flux plate was installed at 0.05m depth and thermowires were installed at 0.05 and 0.3m depths in sandy soil withgrasses of the surface at Ismailia Agriculture Research Station.Data of soil heat flux (G) (W/m2) and soil temperatures wererecorded ...
S.E.M. El-Sisi   +2 more
doaj   +2 more sources

Latent heat in soil heat flux measurements

open access: yesAgricultural and Forest Meteorology, 2010
Abstract The surface energy balance includes a term for soil heat flux. Soil heat flux is difficult to measure because it includes conduction and convection heat transfer processes. Accurate representation of soil heat flux is an important consideration in many modeling and measurement applications. Yet, there remains uncertainty about what comprises
T J Sauer, J L Heitman
exaly   +4 more sources

Soil profile method for soil thermal diffusivity, conductivity and heat flux: Comparison to soil heat flux plates

open access: yesAdvances in Water Resources, 2012
Abstract Diffusive heat flux at the soil surface is commonly determined as a mean value over a time period using heat flux plates buried at some depth (e.g., 5–8 cm) below the surface with a correction to surface flux based on the change in heat storage during the corresponding time period in the soil layer above the plates.
William Kustas   +2 more
exaly   +3 more sources

Long-term estimation of soil heat flux by single layer soil temperature [PDF]

open access: yesInternational Journal of Biometeorology, 2008
Soil heat flux is one of the important components of surface energy balance. In this study, long-term estimation of soil heat flux from single layer soil temperature was carried out by the traditional sinusoidal analytical method and the half-order time derivative method of Wang and Bras [Wang and Bras (1999) J Hydrol 216:214-226].
Cheng-I Hsieh   +2 more
exaly   +4 more sources

Characteristics of Surface Water and Heat Exchange during Soil Freezing And Thawing of Maqu Station in the Source Area of the Yellow River

open access: yesGaoyuan qixiang, 2023
Land surface moisture content and energy budget are significantly affected by the soil freeze-thaw process.From August 2017 to July 2018, soil temperature, soil moisture, eddy data from observation and the simulation data of Community Land Model 5.0 ...
Ge ZHANG, Xin LAI, Kang LIU
doaj   +1 more source

The Characteristics of Land‐Atmospheric Water and Heat Exchange during Soil Freezing‐Thawing Process over the Underlying Surface of the Alpine Grassland in the Source Region of the Yellow River

open access: yesGaoyuan qixiang, 2022
The seasonal characteristics of water and heat exchange in the alpine grasslands are significant, and the freezing‐thawing process has an important impact on the land‐atmospheric water and heat exchange.Based on the observation data of the land surface ...
Yueyue WU   +6 more
doaj   +1 more source

Variation Characteristics of Surface Fluxes on Different Underlying Surfaces and Their Relationship with Precipitation in the Canyon Area of Southeast Tibet

open access: yesGaoyuan qixiang, 2022
In this study, variation characteristics of surface fluxes were analyzed by using the eddy covariance observations from four stations of Pailong, Danka, Kabu, and Motuo in the southeastern gorge area of Tibet from November 2018 to October 2019.Pailong ...
Lingzhi WANG   +5 more
doaj   +1 more source

Study On Energy Balance and Evapotranspiration of an Artificial Caragana korshinskii Shrub Land in Ordos Plateau

open access: yesGaoyuan qixiang, 2022
Artificial afforestation has rapidly restored the ecology of the Hobq Desert and the Mu Us Sandy Land.A thorough understanding of the characteristics of water and energy in sand plantations is of great significance for improving the management of ...
Qimin MA   +3 more
doaj   +1 more source

The soil heat flux sensor functioning checks, imbalances' origins, and forgotten energies [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2022
Soil heat flux is an important component of the surface energy balance (SEB) equation. Measuring it requires an indirect measurement. Every used technique may present some possible errors tied with the utilized specific technique, soil inhomogeneities ...
B. M. Zawilski
doaj   +1 more source

On the energy budget of a low-Arctic snowpack [PDF]

open access: yesThe Cryosphere, 2022
Arctic landscapes are covered in snow for at least 6 months of the year. The energy balance of the snow cover plays a key role in these environments, influencing the surface albedo, the thermal regime of the permafrost, and other factors.
G. Lackner   +13 more
doaj   +1 more source

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