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Science Activities: Classroom Projects and Curriculum Ideas, 2007
The purpose of this activity was to help students understand the percentage of cloud cover and make more accurate cloud cover observations. Students estimated the percentage of cloud cover represented by simulated clouds and assigned a cloud cover classification to those simulations.
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The purpose of this activity was to help students understand the percentage of cloud cover and make more accurate cloud cover observations. Students estimated the percentage of cloud cover represented by simulated clouds and assigned a cloud cover classification to those simulations.
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2017
Cloud is an aggregate of very small water droplets, ice crystals, or a mixture of both, with its base above the Earth’s surface, which is perceivable from the observation location. The limiting liquid particle diameter is of the order of 200 µm; drops larger than this comprise drizzle or rain. The chapter describes types of clouds on the basis of their
Latief Ahmad +3 more
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Cloud is an aggregate of very small water droplets, ice crystals, or a mixture of both, with its base above the Earth’s surface, which is perceivable from the observation location. The limiting liquid particle diameter is of the order of 200 µm; drops larger than this comprise drizzle or rain. The chapter describes types of clouds on the basis of their
Latief Ahmad +3 more
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Radiometric Estimation of Cloud Cover
Journal of Atmospheric and Oceanic Technology, 1985Abstract Estimates of cloud cover based on all-sky temporal and spatial radiometric measurements of downward longwave radiation are compared with visual estimates of the same cloud cover. A detailed comparison of the two estimates over a five-week study period show the radiometric method to be very reliable. Examination of radiometric data taken over a
C. A. Coombes, A. W. Harrison
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Determination of cloud cover parameters
Computational Problems of Electrical Engineering, 2017A methodology for determining the virtual density of clouds, which takes into account both the values of direct and reflected solar radiation, using the method of reverse transformation is given. Beer’s law presented in the paper describes a decrease in the total radiation intensity, calculated per unit of the surface area perpendicular to the ...
Kateryna Osypenko, Valery Zhuikov
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Data-Driven Cloud Cover Parameterizations
2023A promising approach to improve cloud parameterizations within climate models, and thus climate projections, is to train machine learning algorithms on storm-resolving model (SRM) output. The ICOsahedral Non-hydrostatic (ICON) modeling framework permits simulations ranging from numerical weather prediction to climate projections, making it an ideal ...
Arthur Grundner +5 more
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Spatial distribution of cloud cover
International Journal of Satellite Communications and Networking, 2008AbstractSatellite systems and high‐altitude platform systems working in Ka and V bands require the application of adaptive techniques in order to mitigate link degradations caused by atmospheric impairments such as those due to cloud cover. Among these techniques, resource sharing system techniques and site diversity need information on the spatial ...
Pedro Garcia +2 more
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Cloud Cover and Climate Sensitivity
Journal of the Atmospheric Sciences, 1980Abstract This study discusses how the sensitivity of climate may be affected by the variation of cloud cover based on the results from numerical experiments with a highly simplified, three-dimensional model of the atmospheric general circulation. The model explicitly computes the heat transport by large-scale atmospheric disturbances.
Richard T. Wetherald, Syukuro Manabe
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Automatic Cloud Cover Indicator System
Journal of Applied Meteorology, 1973Abstract 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, 1988Abstract 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
2014This 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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