Physics – Space Physics
Scientific paper
Dec 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ijrsp...4..304m&link_type=abstract
(Symposium on Earth's Near Space Environment, New Delhi, India, Feb. 18-21, 1975.) Indian Journal of Radio and Space Physics, vo
Physics
Space Physics
Cloud Cover, Earth Albedo, India, Ocean Surface, Solar Radiation, Dc 3 Aircraft, Diurnal Variations, Satellite Observation, Tables (Data)
Scientific paper
Satellite observations of the earth albedo consistently indicate that the earth is a warmer and darker planet than was previously believed and that more solar energy is absorbed by the atmosphere than hitherto accepted. In order to verify these observations, direct measurements of the albedo of various surfaces were made on the ground at a number of stations in India and from aircraft over extensive land and sea areas. Two thermoelectric pyranometers were used to measure the global and reflected solar radiation, the data being continuously recorded in flight. These data were supplemented by observations over the Arabian sea from an oceanographic ship during 1974. The measurements show that the albedo over land varies from 0.10-0.25, depending on the nature of the surface and that over the sea from 0.04-0.13 depending on the state of the sea. The albedo of clouds varies from 0.40-0.60 for active cumulus to 0.25-0.35 for altostratus.
Chacko O.
Desikan V.
Mani Ali
Vijayan G.
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