Results 11 to 20 of about 13,992 (262)

The surface energy balance of a polygonal tundra site in northern Siberia – Part 2: Winter [PDF]

open access: yesThe Cryosphere, 2011
In this study, we present the winter time surface energy balance at a polygonal tundra site in northern Siberia based on independent measurements of the net radiation, the sensible heat flux and the ground heat flux from two winter seasons.
J. Boike   +4 more
doaj   +1 more source

Water and Heat Flux Characteristics of Alpine Wetland and Alpine Steppe under Grazing Enclosure on the Northern Xizang

open access: yesGaoyuan qixiang, 2023
Grazing enclosure has been extensively employed as a direct and effective management measure for grassland restoration on the Qinghai-Xizang Plateau.Enclosures significantly increased vegetation coverage and affected the water and heat exchange between ...
Zhuangzhuang WANG   +4 more
doaj   +1 more source

Comparison of the Soil Water, Vapor, and Heat Dynamics between Summer Maize and Bare Fields in Arid and Semi-Arid Areas

open access: yesAgronomy, 2023
In arid and semi-arid areas, water vapor transport is an important form of soil water movement and plays a crucial role in the overall water and energy balance. For better prediction of soil water and heat fluxes and understanding of root zone soil water
Wande Gao   +5 more
doaj   +1 more source

Derivation of Heat Conductivity from Temperature and Heat Flux Measurements in Soil [PDF]

open access: yesLand, 2021
The general inverse problem formulation for a heat conductance equation is adopted for the types of measurement routinely carried out in the soil active layer. The problem solution delivers a constant thermal diffusivity coefficient a0 (in general, different from true value a) and respective heat conductivity λ0 for the layer, located between two ...
Victor Stepanenko   +2 more
openaire   +2 more sources

Modelling soil heat flux

open access: yesTheoretical and Applied Climatology, 2009
A mathematical model to calculate soil heat flux in three steps is presented. In the first, an hourly air temperature based on the average daily temperature, using Fourier series coefficients is estimated. The estimated hourly air temperature constitutes an input variable for the second step of the model.
Núñez Julia, Claudia Marcela   +2 more
openaire   +4 more sources

Simulation of Land-Atmosphere Water and Heat Exchange over the Underlying Surface of Different Crops on the Loess Plateau

open access: yesGaoyuan qixiang, 2023
Changes in the planting structure of farmland on the Loess Plateau impact land surface energy and water exchange, regional evapotranspiration, etc.The complex hydrothermal coupling mechanism of different crop underlying surfaces plays an essential role ...
Wei JIN   +9 more
doaj   +1 more source

A Measurement of Heat Flux to the Soil

open access: yesJournal of Agricultural Meteorology, 1959
In order to investigate the heat flux to the soil, the author carried out the observatious of soil temperature, the volume percent of dry soil, water and air be contained withn the soil from November to December in 1957 at Tateno, Ibaragi Pref.The results are as follows;1) The heat capacity (ρc) of the soil is calculated form following formla ...
NAKAGAWA, Y., TSUBOI, Y.
openaire   +2 more sources

Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months

open access: yesApplied and Environmental Soil Science, 2016
Soil heat flux (G) is one term in the energy balance equation, and it can be particularly important in regions with arid, bare, or thinly vegetated soil surfaces. However, in remote areas such as the Antarctic, this measurement is not routinely performed.
Marco Alves, Jacyra Soares
doaj   +1 more source

A Numerical Model to Estimate the Soil Thermal Conductivity Using Field Experimental Data

open access: yesApplied Sciences, 2019
Soil thermal conductivity is an important parameter for understanding soil heat transfer. It is difficult to measure in situ with available instruments.
Leugim Corteze Romio   +4 more
doaj   +1 more source

Simulation and Analysis of Land-Surface Processes in the Taklimakan Desert Based on Noah LSM

open access: yesAdvances in Meteorology, 2019
This study evaluated the Noah land-surface model performance to simulate the land-surface process during different weather conditions in the hinterland of the Taklimakan Desert.
Huoqing Li, Ali Mamtimin, Chenxiang Ju
doaj   +1 more source

Home - About - Disclaimer - Privacy