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Author : D. S. Cooley
Publisher :
ISBN 13 :
Total Pages : 41 pages
Book Rating : 4.:/5 (381 download)
Download or read book The Objective Analysis of Cloud Cover Using Satellite and Surface Data written by D. S. Cooley and published by . This book was released on 1967 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rene V. Cormier
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (227 download)
Download or read book Meteorological Satellite Literature Digest - 1967. Developments in Interpretations of Cloud Photographs written by Rene V. Cormier and published by . This book was released on 1968 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Satellite-viewed jet stream clouds in relation to the observed wind field, relationships between the size of satellite-observed cirrus shields and the severity of thunderstorm complexes, application of satellite picture interpretation principles to analysis in sparse data regions, variability in estimating total cloud cover from satellite pictures, mountain lee waves in the Middle East: theoretical calculations compared with satellite pictures, the objective analysis of cloud cover using satellite and surface data volume I: summary of results and recommended operational use of satellite data.
Author : James T. Williams
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book Using Satellite Cloud Data as an Aid to Surface Analysis written by James T. Williams and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis made as a demonstration, using only satellite data, shows the essential features of an analysis made from conventional meteorological observations. Some major drawbacks of satellite data are discussed.
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723539770
Total Pages : 288 pages
Book Rating : 4.5/5 (397 download)
Download or read book Cloud Cover Determination in Polar Regions from Satellite Imagery written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives are to develop a suitable validation data set for evaluating the effectiveness of the International Satellite Cloud Climatology Project (ISCCP) algorithm for cloud retrieval in polar regions, to identify limitations of current procedures and to explore potential means to remedy them using textural classifiers, and to compare synoptic cloud data from model runs with observations. Toward the first goal, a polar data set consisting of visible, thermal, and passive microwave data was developed. The AVHRR and SMMR data were digitally merged to a polar stereographic projection with an effective pixel size of 5 sq km. With this data set, two unconventional methods of classifying the imagery for the analysis of polar clouds and surfaces were examined: one based on fuzzy sets theory and another based on a trained neural network. An algorithm for cloud detection was developed from an early test version of the ISCCP algorithm. This algorithm includes the identification of surface types with passive microwave, then temporal tests at each pixel location in the cloud detection phase. Cloud maps and clear sky radiance composites for 5 day periods are produced. Algorithm testing and validation was done with both actural AVHRR/SMMR data, and simulated imagery. From this point in the algorithm, groups of cloud pixels are examined for their spectral and textural characteristics, and a procedure is developed for the analysis of cloud patterns utilizing albedo, IR temperature, and texture. In a completion of earlier work, empirical analyses of arctic cloud cover were explored through manual interpretations of DMSP imagery and compared to U.S. Air Force 3D-nephanalysis. Comparisons of observed cloudiness from existing climatologies to patterns computed by the GISS climate model were also made. Barry, R. G. and Key, J. Unspecified Center NASA-CR-186096, NAS 1.26:186096 NAG5-898...
Author : D. S. Cooley
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (381 download)
Download or read book The Use of Weather Satellite Data in Objective Cloud Analysis written by D. S. Cooley and published by . This book was released on 1967 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Defense Documentation Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 784 pages
Book Rating : 4.:/5 (1 download)
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1967 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. Stuart Muench
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.3/5 (91 download)
Download or read book Short-range Forecasting of Cloudiness and Precipitation Through Extrapolation of GOES Imagery written by H. Stuart Muench and published by . This book was released on 1981 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the development and testing of an objective technique to forecast cloudiness and precipitation through extrapolation of satellite imagery. By utilizing on objectively determined cloud-motion vector, the technique makes local forecasts of satellite parameters (brightness and IR temperature), with high temporal resolution, using simple linear extrapolation. Algorithms are then used to convert the satellite parameters to total cloud cover, probability of 1-hour precipitation, and presence of low, middle, and high clouds. The test program computed motion vectors and made forecasts out to 7 hours, in half-hour steps, at 30 locations. The program was tested on 12 spring and fall cases, using half-hourly GOES imagery. For periods beyond 2 hours, forecasts of cloud cover and precipitation were markedly better than persistence, which deficiencies in specification hindered short-period performance. Forecasts of cloud layers were worse than persistence due to inadequate specification algorithms. The net results were quite encouraging, and further refinements and developments are planned.
Author :
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (683 download)
Download or read book Comparison of Satellite-derived and Observer-based Determinations of Cloud Cover Amount at the SGP CART Site written by and published by . This book was released on 1995 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud-climate feedback is one of the most important factors in predicting the timing and magnitude of global climate change and its regional effects. Recent satellite measurements indicate that global effects of clouds on solar and infrared radiation are large. The experimental objective of the Atmospheric Radiation Measurement (ARM) Program is to characterize, empically, the radiative processes in the Earth's atmosphere with improved resolution and accuracy. Therefore, the effective treatment of cloud formation and cloud properties is crucial for reliable climate prediction. This study focuses on the analysis of cloud cover data for the ARM Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site central facility. The data set was obtained from the Advanced Very High Resolution Radiometer (AVHRR) on National Oceanic and Atmospheric Administration (NOAA) Satellites 11 and 12, and cloud observations made by SGP CART site operators. Such an analysis provides a basis for future evaluations with whole-sky cameras and provides a means of assessing the reliability of surface-based observations of cloud cover at the SGP CART site.
Author : S. C. Brown
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (31 download)
Download or read book A New NASA/MSFC Mission Analysis Global Cloud Cover Data Base written by S. C. Brown and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A global cloud cover data set, derived from the USAF 3D NEPH Analysis, was developed for use in climate studies and for Earth viewing applications. This data set contains a single parameter - total sky cover - separated in time by 3 or 6 hour intervals and in space by approximately 50 nautical.miles. Cloud cover amount is recorded for each grid point (of a square grid) by a single alphanumeric character representing each 5 percent increment of sky cover. The data are arranged in both quarterly and monthly formats. The data base currently provides daily, 3-hr observed total sky cover for the Northern Hemisphere from 1972 through 1977 less 1976. For the Southern Hemisphere, there are data at 6-hr intervals for 1976 through 1978 and at 3-hr intervals for 1979 and 1980. More years of data are being added. To validate the data base, the percent frequency of or = 0.3 and or = 0.8 cloud cover was compared with ground observed cloud amounts at several locations with generally good agreement. Mean or other desired cloud amounts can be calculated for any time period and any size area from a single grid point to a hemisphere. The data base is especially useful in evaluating the consequence of cloud cover on Earth viewing space missions. The temporal and spatial frequency of the data allow simulations that closely approximate any projected viewing mission. No adjustments are required to account for cloud continuity.
Author : Patrick J. O'Reilly
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.F/5 ( download)
Download or read book Point Comparisons of Total Cloud Cover from Satellites and from Surface Observations written by Patrick J. O'Reilly and published by . This book was released on 1973 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report compares cloud-cover observations made by ground observers and relative cloud-cover estimates determined from satellite-measured brightness values. Comparisons are made when each type of cloud (9 low type, 9 middle type, and 9 high type) are found alone and also with various combinations taken over the China mainland and portions of Southeast Asia. Satellite observations from the ESSA and ITOS series of satellites are used. Both tabulated and graphical presentations of the results are included along with the author's comments on the investigative procedures and findings.
Author :
Publisher :
ISBN 13 :
Total Pages : 1010 pages
Book Rating : 4.3/5 (91 download)
Download or read book NOAA Technical Report NESS. written by and published by . This book was released on 1970 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James Paul Ormsby
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (31 download)
Download or read book An Annotated Bibliography on Interpretation of Clouds and Cloudiness by Means of Satellite Photographs, 1965-1969 written by James Paul Ormsby and published by . This book was released on 1970 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. Senate. Committee on Aeronautical and Space Sciences
Publisher :
ISBN 13 :
Total Pages : 1022 pages
Book Rating : 4.:/5 (35 download)
Download or read book Hearings, Reports and Prints of the Senate Committee on Aeronautical and Space Sciences written by United States. Congress. Senate. Committee on Aeronautical and Space Sciences and published by . This book was released on 1969 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. Senate. Aeronautical and Space Sciences
Publisher :
ISBN 13 :
Total Pages : 1406 pages
Book Rating : 4.F/5 ( download)
Download or read book NASA Authorization for Fiscal Year 1970, Hearings .... written by United States. Congress. Senate. Aeronautical and Space Sciences and published by . This book was released on 1969 with total page 1406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. Senate. Committee on Aeronautical and Space Sciences
Publisher :
ISBN 13 :
Total Pages : 552 pages
Book Rating : 4.3/5 (126 download)
Download or read book 91-1, May 1, 6, 9, 1969. 1969. viii, pp. 451-905, index to parts 1 and 2 written by United States. Congress. Senate. Committee on Aeronautical and Space Sciences and published by . This book was released on 1969 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. Senate. Committee on Aeronautical and Space Sciences
Publisher :
ISBN 13 :
Total Pages : 1302 pages
Book Rating : 4.:/5 (49 download)
Download or read book NASA Authorization for Fiscal Year 1970 written by United States. Congress. Senate. Committee on Aeronautical and Space Sciences and published by . This book was released on 1969 with total page 1302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Environmental Science Information Center. Library and Information Services Division
Publisher :
ISBN 13 :
Total Pages : 444 pages
Book Rating : 4.:/5 (3 download)
Download or read book Book Catalog of the Library and Information Services Division: Subject index written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
