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Author: Donald B Miller
Publisher:
ISBN:
Category : Clouds
Languages : en
Pages : 0
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Book Description
The atlas was prepared from data acquired during the period January 1, 1967, through December 31, 1970. Picture signals were computer processed to prepare hemispheric charts of monthly, seasonal, semiannual, and annual charts of relative cloud cover, in octas, over both the Northern and Southern Hemispheres. Similar presentations of tropical cloudiness are included. This atlas is one of the first attempts to use satellite data in the preparation of a climatology of daytime cloudiness over the globe. (Author).
Author: Donald B Miller
Publisher:
ISBN:
Category : Clouds
Languages : en
Pages : 0
Get Book Here
Book Description
The atlas was prepared from data acquired during the period January 1, 1967, through December 31, 1970. Picture signals were computer processed to prepare hemispheric charts of monthly, seasonal, semiannual, and annual charts of relative cloud cover, in octas, over both the Northern and Southern Hemispheres. Similar presentations of tropical cloudiness are included. This atlas is one of the first attempts to use satellite data in the preparation of a climatology of daytime cloudiness over the globe. (Author).
Author: Donald B. Miller
Publisher:
ISBN:
Category : Clouds
Languages : en
Pages : 254
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Book Description
The atlas was prepared from data acquired during the period January 1, 1967, through December 31, 1970. Picture signals were computer processed to prepare hemispheric charts of monthly, seasonal, semiannual, and annual charts of relative cloud cover, in octas, over both the Northern and Southern Hemispheres. Similar presentations of tropical cloudiness are included. This atlas is one of the first attempts to use satellite data in the preparation of a climatology of daytime cloudiness over the globe. (Author).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 237
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Book Description
Author: U.S. Department of Commerce. National Environmental Satellite Service
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: US department of commerce
Publisher:
ISBN:
Category :
Languages : en
Pages : 237
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Book Description
Author: United States. National Oceanic and Atmospheric Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 237
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Book Description
Author: C. F. Ropelewski
Publisher:
ISBN:
Category : Canada
Languages : en
Pages : 184
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Book Description
Author: United States. Environmental Data Service
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 452
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 238
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Book Description
Author: John H. Conover
Publisher:
ISBN:
Category : Ceilometer
Languages : en
Pages : 32
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Book Description
Objective methods and their accuracies for deriving current and six-hour forecasts of cloud amount and ceiling from satellite data are presented. Data from the visible and IR window bands were tested to develop relationships. The IR data did not significantly improve the results. The visible data were carefully calibrated, navigated, and normalized for solar elevation and bidirectional reflectance. Cloud motions were also used for the six-hour forecasts. The data were reduced to values of average brightness and its standard deviation over 1/2 deg by 1/2 deg areas before analysis. RMSE of current cloud amounts (on a scale of 0 to 1) are about 0.25 and for six hours later about 0.35. The occurrence of a ceiling/no ceiling was specified correctly 80% and 70% of the time at zero and six hours, respectively. Various methods are shown for minimization of ceiling errors over different height ranges. In general, RMSE of specified and forecast ceilings range from 4000 to 6000 ft at low levels to 9000 to 10,000 ft at mid and high levels. (Author).
