Download or read book The Distribution of Thunderstorm Days Lightning Discharges and the Incidence of Lightning Discharge Derived from VLF Sferics Data written by William B. Freeman and published by . This book was released on 1977 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributions were developed for 1972 in the Eastern Hemisphere of thunderstorm days (January, April, July, and October), the incidence of lightning discharge (January and April), and the areal concentration of lightning discharge (yearly). These analyses were based on a review of sferics data. Charts of thunderstorm days differed significantly from mean charts of the World Meteorological Organization (WMO), especially over the oceans, North Africa, Arabia, the Mediterranean Sea, and Southeast China. These areas of sparse data in the WMO compilation have been covered in this investigation. The tentative, first estimate of the distribution of lightning discharges over a large area of Earth differed significantly from the distribution of thunderstorm days for April and July, but the two distributions were similar for January and October. Centers of relatively high occurrence of lightning discharge on a yearly basis were located over South Africa, the Mediterranean Sea, Arabia, Southeast China, Southeast Asia, and Australia. The occurrence of lightning discharge was shown to follow Sun northward from January to the maximum poleward thrust in July. The occurrence of lightning discharge receded equatorward from July to the end of fall in December. The most reliable planetary-scale estimate of the average incidence of lightning discharge was 0.000042 per km per sec for the Northern Hemisphere (0-179E) in January 1972 and 0.000030 per km per sec for April 1972.
Download or read book The Distribution of Thunderstorm Days Lightning Discharges and the Incidence of Lightning Discharge Derived from VLF Sferics Data written by Bill Freeman and published by . This book was released on 1977 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Distribution of Thunderstorm Days Lightning Discharges and the Incidence of Lightning Discharge Derived from VLF Sferics Data written by Bill Freeman and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributions were developed for 1972 in the Eastern Hemisphere of thunderstorm days (January, April, July, and October), the incidence of lightning discharge (January and April), and the areal concentration of lightning discharge (yearly). These analyses were based on a review of sferics data. Charts of thunderstorm days differed significantly from mean charts of the World Meteorological Organization (WMO), especially over the oceans, North Africa, Arabia, the Mediterranean Sea, and Southeast China. These areas of sparse data in the WMO compilation have been covered in this investigation. The tentative, first estimate of the distribution of lightning discharges over a large area of Earth differed significantly from the distribution of thunderstorm days for April and July, but the two distributions were similar for January and October. Centers of relatively high occurrence of lightning discharge on a yearly basis were located over South Africa, the Mediterranean Sea, Arabia, Southeast China, Southeast Asia, and Australia. The occurrence of lightning discharge was shown to follow Sun northward from January to the maximum poleward thrust in July. The occurrence of lightning discharge receded equatorward from July to the end of fall in December. The most reliable planetary-scale estimate of the average incidence of lightning discharge was 0.000042 per km per sec for the Northern Hemisphere (0-179E) in January 1972 and 0.000030 per km per sec for April 1972.
Download or read book The Distribution of Thunderstorm Days Lightning Discharges and the Incidence of Lightning Discharge Derived from VLF Sferics Data written by William B Freeman (Jr) and published by . This book was released on 1977 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributions were developed for 1972 in the Eastern Hemisphere of thunderstorm days (january, April, July, and October), the incidence of lightning discharge (january and April), and the areal concentration of lightning discharge (yearly). These analyses were based on a review of sferics data. Charts of thunderstorm days differed significantly from mean charts of the World Meteorological Organization (WMO), especially over the oceans, North Africa, Arabia, the Mediterranean Sea, and Southeast China. These areas of sparse data in the WMO compilation have been covered in this investigation. The tentative, first estimate of the distribution of lightning discharges over a large area of Earth differed significantly from the distribution of thunderstorm days for April and July, but the two distributions were similar for January and October. Centers of relatively high occurrence of lightning discharge on a yearly basis were located over South Africa, the Mediterranean Sea, Arabia, Southeast China, Southeast Asia, and Australia. The occurrence of lightning discharge was shown to follow Sun northward from January to the maximum poleward thrust in July. The occurrence of lightning discharge receded equatorward from July to the end of fall in December. The most reliable planetary-scale estimate of the average incidence of lightning discharge was 0.000042 per km per sec for the Northern Hemisphere (0-179E) in January 1972 and 0.000030 per km per sec for April 1972.
Download or read book The Distribution of Thunderstorm Days Lightning Discharges and the Incidence of Lightning Discharge Derived from VLF Sferics Data written by William B. Freeman and published by . This book was released on 1977 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Special Reports Air Force Geophysics Laboratory written by and published by . This book was released on 1977 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1976- include Its Geophysics and space data bulletin.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1978 with total page 774 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.
Download or read book The Electrical Nature of Storms written by D. R. MacGorman and published by Oxford University Press, USA. This book was released on 1998 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid progress during the last twenty years has created a host of new technologies for studying electrical storms, including lightning mapping systems, new radars, satellite sensors, and new ways of measuring electric field and particle charge. This book explains how these advances have revolutionized our understanding. The books provides substantial background material, making it accessible to a broad scientific audience.
Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1979 with total page 1434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of the Variability of Thunderstorm Electrical Events Based on Very Low Frequency Electromagnetic Data written by William Burns Freeman (Jr) and published by . This book was released on 1979 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sferics counts were used to estimate the incidence of lightning discharges; study the relationship of lightning-flash density to thunderstorm days; and explore the variability to cloud-to-ground discharges. Areal and global discharge incidence estimates were generated from sferics, yielding a global estimate of 1.3 times ten to the minus 5th power /Sq km/s. Gridded monthly values are given for much of the Eastern Hemisphere. The Southern Hemisphere tropics were found to have a average incidence of discharge than the Northern Hemisphere tropics. The linear regression relationship between flash density and thunder storm days indicated lower estimates of flash density when based on data stratifications compared to previous studies. Selected data from the Eastern Hemisphere were studied by linear regression techniques for causes of large-scale variability of cloud-to-ground discharges. In order of importance the regressors were the height of freezing level, the planetary geomagnetic index, a parameterization of the height of the freezing level, precipitable water in 1000-850 mb layer, the dew-point depression at 850 mb, the K index of stability, and the departure of the H-component of the magnetic force vector from its mean. (Author).
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1978 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of the Variability of Thunderstorm Electrical Events Based on Very low frequency Electromagnetic Data written by William Burns Freeman and published by . This book was released on 1979 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Contractor Report written by United States. National Aeronautics and Space Administration and published by . This book was released on 1979 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1979 Current Research on Aviation Weather bibliography written by Barry S. Turkel and published by . This book was released on 1880 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Safety Science Abstracts Journal written by and published by . This book was released on 1978 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lightning Discharge written by Martin A. Uman and published by Courier Corporation. This book was released on 2012-08-21 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Absorbing monograph by expert sets forth most of known properties of lightning: cloud and lightning charges, stepped leader, return stroke, dart leader, lightning on other planets, thunder, more. 144 illustrations.
