Results 261 to 270 of about 569,876 (277)

Automatic Cloud Cover Indicator System

Journal of Applied Meteorology, 1973
Abstract A method for developing and constructing a cloud cover indicator system is described. The method involves pointing an IR radiometer vertically downward to a movable mirror and measuring the reflected sky radiation by comparing the difference in thermal radiance between clouds and the sky. To determine cloud cover it is only important to have a
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Cloud cover distribution in Indonesia

International Journal of Remote Sensing, 1988
Abstract Indonesian spatio-temporal cloud cover distribution was quantified to allow planners to forecast probabilities for remote sensing data acquisition. The original data consisted of four randomly chosen Geostationary Meteorological Satellite displays per month from 1981 to 1985, which were analysed with a microcomputer after a 1 °15'pixel size ...
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Aerosol Optical Depth, Ice Cover, and Cloud Cover

2014
This chapter investigated the relationships between aerosol optical depth, sea-ice cover (ICE), and cloud cover (CLD) in the Greenland Sea in 20°W–10°E, 65°N–85°N during the period 2003–2012. We focused more on 70°N–80°N and divided it into two 5° zonal apart. Remote sense satellite data were used to do correlation analysis. Enhanced statistics methods
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Cloud cover and daylight illuminance

Building and Environment, 1987
Abstract Continous measurements of daylight illuminance were made at Nottingham, England, during 1985 and 1986 . Cloud quantities were measured from simultaneous field photographs of the sky, and the association between global horizontal illuminance and cloudiness was calculated.
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Cloud-Cover Distributions and Correlations

Journal of Applied Meteorology, 1992
Abstract Observations of cloud cover (in oktas or tenths) by ground-based observers have been studied to investigate the distribution of cloud-cover amounts and the correlation of cloud cover in time and space. The correlation between observations at the same station, at different times, was found to vary as an exponential of the time separation ...
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Forbush Decreases and Cloud Cover

2005
According to the cosmic ray cloud hypothesis, changes in the cosmic ray intensity over the past two and a half solar cycles caused significant changes in the Earth's cloud cover with important consequences for the climate. To test this hypothesis we investigated on a global scale the atmospheric cloud cover and the variation of the atmospheric ...
Čalogović, Jaša, Beer, Jürg, Desorgher, Laurent, Flückiger, Erwin   +3 more
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Cloud cover

New Scientist, 2020
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Comparison of satellite and surface cloud cover observations and cloud cover regions over Europe

Journal of Climatology, 1988
AbstractA five year data set of satellite cloud cover observations and a thirty year data set of surface cloud cover observations were compared over Europe. There is good agreement between the general characteristics of these two cloud climatologies. Differences between monthly means (January, April, July and October) of the two data sets were formed ...
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Cloud cover

New Scientist, 2014
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Penetrating Cloud Cover

Science, 2000
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