Results 251 to 260 of about 4,506,437 (297)

The Albedo of Various Surfaces of Ground

Geografiska Annaler, 1925
(1925). The Albedo of Various Surfaces of Ground. Geografiska Annaler: Vol. 7, No. 4, pp. 323-342.
Anders Ångström, Anders Angstrom
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SOLAR UVB‐ALBEDO OF VARIOUS SURFACES

Photochemistry and Photobiology, 1988
Abstract— Measurements of the albedo of various surfaces in open grounds show significant differences for solar UVB radiation and total solar radiation (0.3–3μm). Above grassland, that albedo for solar UVB radiation is significantly smaller than that for total solar radiation (UVB: 1.3%, total: 20.7%); contrary to that, the albedo for UVB radiation is ...
M, Blumthaler, W, Ambach
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Asymmetry in the diurnal variation of surface albedo

IEEE Transactions on Geoscience and Remote Sensing, 1997
Remote sensing of surface properties and estimation of clear-sky and surface albedo generally assume that the albedo depends only on the solar zenith angle. The effects of dew, frost, and precipitation as well as evaporation and wind can lead to some systematic diurnal variability resulting in an asymmetric diurnal cycle of albedo.
Patrick Minnis, Shalini Mayor, William L. Smith, David F. Young   +3 more
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Parameterization of land surface albedo

Chinese Optics Letters, 2014
Remote measurements of Earth's surface from ground, airborne, and spaceborne instruments show that its albedo is highly variable and is sensitive to solar zenith angle (SZA) and atmospheric opacity. Using a vali­dated radiative transfer calculating toolbox, DISORT and a bidirectional reflectance distribution function library, AMBRALS, a land surface ...
Shengcheng Cui Shengcheng Cui, Zhen Wang Zhen Wang, Shizhi Yang Shizhi Yang   +2 more
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Albedo of the Sea Surface

Journal of the Atmospheric Sciences, 1972
Abstract An experimental study of the albedo of the sea surface for shortwave solar radiation has been carried out on a fixed platform. Fifteen-minute totals of upward and downward irradiances were recorded continuously for four months over a wide range of atmospheric and sea conditions.
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A Global Surface Albedo Model

Journal of Applied Meteorology, 1979
Abstract We have shown in the past that the radiative-convective energy balance atmospheric model used at the General Motors Research Laboratories in our atmospheric physics research is extremely sensitive to the input value of surface albedo used. In response to this we developed a new global model of the surface albedo based on a detailed analysis of
John R. Hummel, Ruth A. Reck
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Annual Cycle of Surface Albedo

Monthly Weather Review, 1980
Abstract Monthly mean surface albedo for the full spectra range of incoming solar radiation and average atmospheric properties is estimated for the period 1 April 1974–31 March 1975. It can be considered approximately representative of average conditions in the last decade.
G. Kukla, D. Robinson
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Surface albedo and the Sahel drought

Nature, 1984
The persistence of the Sahel drought, which reached a peak in 1973, appears to be typical for such dry episodes over past decades and centuries1–3. Such strong persistence can be understood if a strong positive feedback mechanism is operating, partly driven by changes in surface properties4,5.
Courel, Marie-Françoise, Kandel, Robert, Rasool, S., I.   +2 more
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REFLECTANCE AND ALBEDO, SURFACE

2003
‘Albedo’ is Latin, meaning whiteness. The albedo of a surface is the fraction of the incident sunlight that the surface reflects. Radiation that is not reflected is absorbed by the surface. The absorbed energy raises the surface temperature, evaporates water, melts and sublimates snow and ice, and energizes the turbulent heat exchange between the ...
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Albedo distribution on Io's surface

Icarus, 1979
A visual albedo distribution model for all hemispheres of Io's surface has been synthesized from available earth-based and spacecraft image and photometric data. The resulting model indicates some interesting patterns and symmetries on Io's surface: the dark polar caps are shifted off Io's rotational axis and are elliptical rather than circular in ...
D.B. Nash, T.V. Johnson
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