The Fortieth Anniversary History of Weather Radar Research in the U.S. Air Force
Author: James I. Metcalf
Publisher:
Published: 1989
Total Pages: 78
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: James I. Metcalf
Publisher:
Published: 1989
Total Pages: 78
ISBN-13:
DOWNLOAD EBOOKAuthor: James I. Metcalf
Publisher:
Published: 1989
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1989
Total Pages: 74
ISBN-13:
DOWNLOAD EBOOKDetection of radar echoes from the optically clear atmosphere in the early 1950's led to vigorous debate within the weather radar community as to their origins. Members of this program later used the radars at Wallops Island, Va., to observe the clear atmosphere, detecting the tropopause by radar in 1966 and confirming that most of the clear air echoes were due to turbulence. Research through the 1950's and 1960's led to improved understanding of stratiform rain systems, hurricanes, and severe convective storms. The first rain parameter diagram was developed in 1957. Doppler radar was used in 1961 to produce the first wind profile from radar measurements and in 1968 to make the first radar observation of a mesocyclone. The research on severe storm dynamics, both at the Air Force radar site in Sudbury, Mass., and in collaboration with the National Severe Storms Laboratory in Oklahoma, laid much of the foundation for the Next Generation Weather Radar (NEXRAD) program. Field work at Wallops Island and at Kwajalein Atoll in the 1970's in support of Air Force reentry vehicle test programs included the first display of analysis products generated from radar data by a computer in real time. In recent years much effort has been devoted to the development of data analysis algorithms for NEXRAD. Other current work includes measurement of wind profiles by UHF Doppler radar and the development of polarization diversity techniques for documenting hydrometer microphysical parameters and processes.
Author: David Atlas
Publisher: Springer
Published: 2015-03-30
Total Pages: 817
ISBN-13: 193570415X
DOWNLOAD EBOOKThis fully illustrated volume covers the history of radar meteorology, deals with the issues in the field from both the operational and the scientific viewpoint, and looks ahead to future issues and how they will affect the current atmosphere. With over 200 contributors, the volume is a product of the entire community and represents an unprecedented compendium of knowledge in the field.
Author:
Publisher:
Published: 1989
Total Pages: 80
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1991
Total Pages: 954
ISBN-13:
DOWNLOAD EBOOKAuthor: Howard B. Bluestein
Publisher: Oxford University Press, USA
Published: 2006
Total Pages: 210
ISBN-13: 9780195307115
DOWNLOAD EBOOKFor scientists, amateur weather enthusiasts, or anyone intrigued or terrified by a darkening sky, this book provides not only a history of tornado research, but a vivid look into the origin of the storms. 67 color illustrations.
Author:
Publisher:
Published: 1989-07
Total Pages: 516
ISBN-13:
DOWNLOAD EBOOKAuthor: U.S. Air Force Geophysics Laboratory
Publisher:
Published:
Total Pages: 218
ISBN-13:
DOWNLOAD EBOOKAuthor: D. D. Grantham
Publisher:
Published: 1967
Total Pages: 388
ISBN-13:
DOWNLOAD EBOOKThe frequency and probability of radar echoes of convective clouds over the United States are presented. Analysis of three years of observations from a 31-station WSR-57 weather radar network indicates that at all altitudes, radar echo probabilities are greatest over Florida and the Gulf coast, generally decreasing northward over the United States. Also, largest probabilities for most layers and locations occur in summer. Echoes have been reported up to at least 70 kft in May, June, and July, and up to 60 kft in winter. Diurnal variations reveal greatest probabilities between 1600 and 2100 LST in all regions. Largest mean monthly 3-hour values are 85 percent, and the maximum mean daily range is roughly 65 percent in the southeast during the summer months. The probability of an echo-free horizontal view near the earth's surface for a 100-mile range is also presented. Tabulations of echo-free sectors, as percent of the 360-degree radar scope, show that the probability of obstructions to a horizontal view increases generally from northwest to southwest during all seasons. The probability of having no echoes is greater in winter than in summer except along the Pacific coastal region. Diurnal variability is larger in July than in January. (Author)