Results 221 to 230 of about 35,246 (261)

The Computation of the Effective Temperature of the Land Surface Covered with Canopy

Applied Mechanics and Materials, 2012
—Surface soil moisture is an important parameter in describing the water and energy exchanges at the land surface/atmosphere interface. Passive microwave remote sensors have great potential for monitoring surface soil moisture over land surface. The objective of this study is going to establish a model for estimating the effective temperature of land ...
null Hongzhang Ma, null Sumei Liu
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Effect of dew on canopy reflectance and temperature

Remote Sensing of Environment, 1986
Abstract The diurnal behavior of canopy reflectance and emittance was characterized for six spring wheat cultivars using two ground-based radiometers that had spectral bandpass characteristics similar to the multispectral scanner and thematic mapper radiometers on Landsats 4 and 5.
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A note on canopy and air temperature equality

Agricultural and Forest Meteorology, 1985
Abstract Well-watered crops having nearly identical ratio of intercept and slope of the “non-water-stressed baseline” would attain their equivalence point temperature at roughly identical air vapor pressure deficit. However, such a behavior of these crops might not prevail as the wet soil dries out progressively.
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Airborne Remote Sensing Used to Estimate Percent Canopy Cover and to Extract Canopy Temperature from Scene Temperature in Cotton

Transactions of the ASABE, 2007
The goal of this research was to separate the soil and plant temperatures and create an image map of plant water stress. Data from hyperspectral imagery (HSI) and thermal infrared (TIR) sensors were collected using an airborne platform over three seasons, involving three different varieties of Acala cotton, four different fields, and a total of ten ...
null W. R. DeTar, null J. V. Penner
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Investigation of crop canopy temperature in apple orchard

Physics and Chemistry of the Earth, Parts A/B/C, 2005
Abstract The paper shows a sophisticated case study for a possible determination of transpiration in apple orchard. The trial measurements were carried out in the Study Orchard of Horticultural and Food Industry University situated in Szigetcsep situated South of Budapest.
L. Tőkei, Z. Dunkel
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Monitoring the canopy temperature of forests

Futurum Careers, 2022
Sophie Fauset, Shalom D. Addo-Danso
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Canopy temperature as a measure of salinity stress on sorghum

Irrigation Science, 1992
A complete understanding of plant response to combined water and salinity stress is desirable. Previous growth chamber and greenhouse experiments with sorghum and maize indicate that soil salinity, by negatively affecting growth processes, may reduce consumptive water use, thus prolonging the supply of available soil moisture.
GerardJ. Kluitenberg, JamesW. Biggar
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Grain sorghum canopy temperature as influenced by clouds

Remote Sensing of Environment, 1975
Abstract Canopy temperature of irrigated grain sorghum [ Sorghum bicolor (L.) Moench ] was monitored using an infrared thermometer during short-term changes in solar radiation. Canopy temperature is defined as the blackbody temperature that would produce the same radiation level that enters the instrument field-of-view from the crop canopy.
L.R. Stone, E.T. Kanemasu, M.L. Horton
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Canopy temperature and growth of differentially irrigated alfalfa

Agricultural Meteorology, 1983
Abstract Plant temperature of alfalfa (Medicago sativa L.) grown with different amounts of irrigation water has not been reported. The objective of this experiment was to determine if progressive differences in canopy temperature existed among plots of alfalfa (ev. Cody) subjected to 7 graded watering treatments.
M.B Kirkham, D.E Johnson, E.T Kanemasu, L.R Stone   +3 more
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Canopy temperature as a crop water stress indicator

Water Resources Research, 1981
Canopy temperatures, obtained by infrared thermometry, along with wet‐ and dry‐bulb air temperatures and an estimate of net radiation were used in equations derived from energy balance considerations to calculate a crop water stress index (CWSI). Theoretical limits were developed for the canopy air temperature difference as related to the air vapor ...
R. D. Jackson, S. B. Idso, R. J. Reginato, P. J. Pinter   +3 more
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