Tests of Spectral Cloud Classification Using DMSP Fine Mode Satellite Data

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Total Pages : 46 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Tests of Spectral Cloud Classification Using DMSP Fine Mode Satellite Data by : James T. Bunting

Download or read book Tests of Spectral Cloud Classification Using DMSP Fine Mode Satellite Data written by James T. Bunting and published by . This book was released on 1980 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computer-based processor for satellite imagery was tested on samples of DMSP visible and IR imagery data smoothed to 0.6 n mi resolution. The data were displayed on the AFGL Man-computer Interactive Data Access System so that meteorologists could label small areas (25 x 25 n mi) with one of nine possible cloud categories from the AF 3D Nephanalysis Program (3DNEPH). The computer-based processor labeled the same areas by computing a two-dimensional fast Fourier transform (FFT) and comparing the results to average wavenumber spectra for the cloud categories. Classification accuracies were 65% for visible, 65% for IR and 81% for combined data. The classification accuracies were appreciably better than chance and a simplified processor which used only the averaged values of satellite data over an area. Accuracies improved is some categories were merged. The results were also compared to a cloud typing procedure in the 3DNEPH and to some earlier studies. The results were generally good for categories with small-scale cloud features such as cumulus or cirrus clouds, but the overall accuracy of classification for all cloud categories was not significantly better than verifications cited in earlier studies. Two potential refinements to the spectral processors, namely, removing the effects of backgrounds such as land, water, and snow cover and minimizing sensitivity to varying fractional cloud cover from case to case, are also discussed. (Author).

Tests of Spectral Cloud Classification Using DMSP Fine Mode Satellite Data

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ISBN 13 :
Total Pages : 0 pages
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Book Synopsis Tests of Spectral Cloud Classification Using DMSP Fine Mode Satellite Data by : James T. Bunting

Download or read book Tests of Spectral Cloud Classification Using DMSP Fine Mode Satellite Data written by James T. Bunting and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computer-based processor for satellite imagery was tested on samples of DMSP visible and IR imagery data smoothed to 0.6 n mi resolution. The data were displayed on the AFGL Man-computer Interactive Data Access System so that meteorologists could label small areas (25 x 25 n mi) with one of nine possible cloud categories from the AF 3D Nephanalysis Program (3DNEPH). The computer-based processor labeled the same areas by computing a two-dimensional fast Fourier transform (FFT) and comparing the results to average wavenumber spectra for the cloud categories. Classification accuracies were 65% for visible, 65% for IR and 81% for combined data. The classification accuracies were appreciably better than chance and a simplified processor which used only the averaged values of satellite data over an area. Accuracies improved is some categories were merged. The results were also compared to a cloud typing procedure in the 3DNEPH and to some earlier studies. The results were generally good for categories with small-scale cloud features such as cumulus or cirrus clouds, but the overall accuracy of classification for all cloud categories was not significantly better than verifications cited in earlier studies. Two potential refinements to the spectral processors, namely, removing the effects of backgrounds such as land, water, and snow cover and minimizing sensitivity to varying fractional cloud cover from case to case, are also discussed. (Author)

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 1460 pages
Book Rating : 4.:/5 (31 download)

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Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Report on Research at AFCRL.

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ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Report on Research at AFCRL. by : Air Force Cambridge Research Laboratories (U.S.)

Download or read book Report on Research at AFCRL. written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1976 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Cloud Classification and Its Application to Statistically Derived Radiative Energy Budgets

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ISBN 13 :
Total Pages : 408 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Cloud Classification and Its Application to Statistically Derived Radiative Energy Budgets by : Michael Adam Friedman

Download or read book Cloud Classification and Its Application to Statistically Derived Radiative Energy Budgets written by Michael Adam Friedman and published by . This book was released on 1998 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Classification and Analysis of Surface and Clouds at High Latitudes from AVHRR Multispectral Satellite Data

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ISBN 13 :
Total Pages : 398 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Classification and Analysis of Surface and Clouds at High Latitudes from AVHRR Multispectral Satellite Data by : Elizabeth Eby Ebert

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Digest

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ISBN 13 :
Total Pages : 898 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Digest by :

Download or read book Digest written by and published by . This book was released on 1987 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Digital Image Processing and Visual Communications Technologies in Meteorology

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ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Digital Image Processing and Visual Communications Technologies in Meteorology by : Paul Janota

Download or read book Digital Image Processing and Visual Communications Technologies in Meteorology written by Paul Janota and published by . This book was released on 1987 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Automated Recognition of Oceanic Cloud Patterns and Its Application to Remote Sensing of Meteorological Parameters

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Publisher : Ann Arbor, Mich. : University Microfilms International
ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Automated Recognition of Oceanic Cloud Patterns and Its Application to Remote Sensing of Meteorological Parameters by : Louis Garand

Download or read book Automated Recognition of Oceanic Cloud Patterns and Its Application to Remote Sensing of Meteorological Parameters written by Louis Garand and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1986 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceedings

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ISBN 13 :
Total Pages : 616 pages
Book Rating : 4.:/5 (41 download)

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Book Synopsis Proceedings by :

Download or read book Proceedings written by and published by . This book was released on 1988 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Annual Index

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ISBN 13 :
Total Pages : 1192 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Government Reports Annual Index by :

Download or read book Government Reports Annual Index written by and published by . This book was released on 1981 with total page 1192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Geographical Abstracts

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ISBN 13 :
Total Pages : 896 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Geographical Abstracts written by and published by . This book was released on 1984 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Geographical Abstracts Index

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ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.F/5 ( download)

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Download or read book Geographical Abstracts Index written by and published by . This book was released on 1982 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Improved Cloud Detection Utilizing Defense Meteorological Satellite Program Near Infrared Measurements

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ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis Improved Cloud Detection Utilizing Defense Meteorological Satellite Program Near Infrared Measurements by : James T. Bunting

Download or read book Improved Cloud Detection Utilizing Defense Meteorological Satellite Program Near Infrared Measurements written by James T. Bunting and published by . This book was released on 1982 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Environmental Research Papers

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ISBN 13 :
Total Pages : 402 pages
Book Rating : 4.6/5 (248 download)

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Download or read book Environmental Research Papers written by and published by . This book was released on with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Meteorological and Geoastrophysical Abstracts

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ISBN 13 :
Total Pages : 1340 pages
Book Rating : 4.:/5 (319 download)

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Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1981 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Remote Sensing and the Atmosphere

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ISBN 13 :
Total Pages : 340 pages
Book Rating : 4.3/5 (21 download)

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Download or read book Remote Sensing and the Atmosphere written by and published by . This book was released on 1982 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: