Results 261 to 270 of about 3,913,387 (306)
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Radiative balance and temperature of differently pigmented cotton canopies
International Journal of Biometeorology, 2022Pigments are known to modify the spectral properties of foliage, which in turn affect the amount of radiant energy stored by the plant canopy. Studies have shown that red pigments (anthocyanin) increase leaf absorptivity of solar radiation, but little is known about their effect on canopy net radiation and temperature.
Henrique D R, Carvalho +3 more
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FACTORS AFFECTING THE RADIATIVE TEMPERATURE OF A VEGETATIVE CANOPY
1990International ...
Boissard, P., Guyot, G., Jackson, R.D.
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Azimuthal radiometric temperature measurements of wheat canopies
Applied Optics, 1981The effects of azimuthal view angle on the radiometric temperature of wheat canopies at various stages of development are investigated. Measurements of plant height, total leaf area index, green leaf area index and Feeks growth stage together with infrared radiometric temperature measurements at 12 azimuth intervals with respect to solar azimuth and at
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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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Air-canopy temperature difference for fluorescence emission models
IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2004Precise canopy temperature (CT) determination of a boreal forest region was needed within SIFLEX-2002 to improve the understanding of fluorescence processes. Taking into account sky radiance effects and emissivity correction, CT was measured with an accuracy of /spl plusmn/0.4 K using the CE 312 radiometer.
Raquel Niclòs +3 more
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Crop Science, 1984
A hand‐held infrared thermometer was used to measure the leaf canopy temperature of 20 soybean [Glycine max (L.) Merr.] genotypes under both irrigated and nonirrigated conditions. In 1980, 14 canopy temperature measurements were made end 9 were made in 1981.
D. S. Harris +2 more
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A hand‐held infrared thermometer was used to measure the leaf canopy temperature of 20 soybean [Glycine max (L.) Merr.] genotypes under both irrigated and nonirrigated conditions. In 1980, 14 canopy temperature measurements were made end 9 were made in 1981.
D. S. Harris +2 more
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Soil and vegetation canopy temperature gradients: implications for SMOS
IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004, 2004We present the diurnal variation of vertical temperature gradients measured in a maize canopy over the course of a growing season in the context of the SMOS mission. For the 6 AM and 6 PM overpass times, gradients were actually smallest in magnitude at 6 PM. The mean, standard deviation, and extreme values of the temperature differences between the top
Brian K. Hornbuckle, Anthony W. England
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Effect of dew on canopy reflectance and temperature
Remote Sensing of Environment, 1986Abstract 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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Monitoring the canopy temperature of forests
Futurum Careers, 2022Sophie Fauset, Shalom D. Addo-Danso
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A note on canopy and air temperature equality
Agricultural and Forest Meteorology, 1985Abstract 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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