Download or read book Scanning Strategies for Next Generation Weather Radars written by P. R. Mahapatra and published by . This book was released on 1982 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Strategies for Next Generation Weather Radars A Study Based on Lifetimes of Convective Atmospheric Phenomena Hazardous to Aviation written by Pravas R. Mahapatra and published by . This book was released on 1982 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the methodology and results of a study to estimate the lifetimes of significant features in typical storm phenomena. These results are expected to help in deciding the scan strategy of NEXRAD radars. In particular, the question of the adequacy of a 5-minute information update rate for NEXRAD in its aviation weather surveillance role has been addressed. Two methods are used for the lifetime study: photo-interpretive and computer-based correlation. The basis and program steps of the correlation method are discussed. Several storms are studied using both methods. It is found that the storms studied contain no feature that might have been missed by a 5-minute scan cycle provided that data from all the three-moment fields (reflectivity, radial velocity, and Doppler spectrum width) at several elevations are utilized in the detection of hazardous phenomena. (Author).
Download or read book Scanning Strategies for Next Generation Weather Radars written by United States. Federal Aviation Administration. Systems Research and Development Service and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weather Radar Technology Beyond NEXRAD written by National Research Council and published by National Academies Press. This book was released on 2002-08-31 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weather radar is a vital instrument for observing the atmosphere to help provide weather forecasts and issue weather warnings to the public. The current Next Generation Weather Radar (NEXRAD) system provides Doppler radar coverage to most regions of the United States (NRC, 1995). This network was designed in the mid 1980s and deployed in the 1990s as part of the National Weather Service (NWS) modernization (NRC, 1999). Since the initial design phase of the NEXRAD program, considerable advances have been made in radar technologies and in the use of weather radar for monitoring and prediction. The development of new technologies provides the motivation for appraising the status of the current weather radar system and identifying the most promising approaches for the development of its eventual replacement. The charge to the committee was to determine the state of knowledge regarding ground-based weather surveillance radar technology and identify the most promising approaches for the design of the replacement for the present Doppler Weather Radar. This report presents a first look at potential approaches for future upgrades to or replacements of the current weather radar system. The need, and schedule, for replacing the current system has not been established, but the committee used the briefings and deliberations to assess how the current system satisfies the current and emerging needs of the operational and research communities and identified potential system upgrades for providing improved weather forecasts and warnings. The time scale for any total replacement of the system (20- to 30-year time horizon) precluded detailed investigation of the designs and cost structures associated with any new weather radar system. The committee instead noted technologies that could provide improvements over the capabilities of the evolving NEXRAD system and recommends more detailed investigation and evaluation of several of these technologies. In the course of its deliberations, the committee developed a sense that the processes by which the eventual replacement radar system is developed and deployed could be as significant as the specific technologies adopted. Consequently, some of the committee's recommendations deal with such procedural issues.
Download or read book Assessing Scanning Strategies with All digital Phased Array Weather Radars for Characterization and Detection of Microbursts written by Connor Brock Pearson and published by . This book was released on 2022 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Total Scan written by Dominik Jacques and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flash Flood Forecasting Over Complex Terrain written by National Research Council and published by National Academies Press. This book was released on 2005-01-28 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nation's network of more than 130 Next Generation Radars (NEXRADs) is used to detect wind and precipitation to help National Weather Service forecasters monitor and predict flash floods and other storms. This book assesses the performance of the Sulphur Mountain NEXRAD in Southern California, which has been scrutinized for its ability to detect precipitation in the atmosphere below 6000 feet. The book finds that the Sulphur Mountain NEXRAD provides crucial coverage of the lower atmosphere and is appropriately situated to assist the Los Angeles-Oxnard National Weather Service Forecast Office in successfully forecasting and warning of flash floods. The book concludes that, in general, NEXRAD technology is effective in mountainous terrain but can be improved.
Download or read book Doppler Radar Weather Observations written by Richard J. Doviak and published by Academic Press. This book was released on 2014-08-27 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the principles of Doppler radar and emphasizes the quantitative measurement of meteorological parameters. It illustrates the relation of Doppler radar data and images to atmospherix phenomena such as tornados, microbursts, waves, turbulence, density currents, hurricanes, and lightning. Radar images and photographs of these weather phenomena are included. Polarimetric measurements and data processing An updated section on RASS Wind profilers Observations with the WSR-88D An updated treatment of lightning Turbulence in the planetary boundary layer A short history of radar Chapter problem sets
Download or read book Publications Abstracts written by Environmental Research Laboratories (U.S.) and published by . This book was released on 1987 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Next Generation Weather Radar NEXRAD written by and published by . This book was released on 1986 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aviation Weather written by U S Government Accountability Office (G and published by BiblioGov. This book was released on 2013-06 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pursuant to a congressional request, GAO reviewed the Federal Aviation Administration's (FAA) efforts to: (1) develop better ground-based hazardous weather detection systems; and (2) disseminate weather information to pilots in a more timely manner. GAO found that: (1) the enhanced low-level wind-shear alert system (LLWAS) could not detect wind shears that occurred above or below its ground-based sensors; (2) the terminal next-generation weather radar has a much greater range and is more accurate than LLWAS in detecting wind shears; (3) FAA will replace LLWAS with the terminal doppler weather radar when it becomes available; (4) FAA plans to award a procurement contract for 100 doppler radars in 1988, although the radar has not realized some performance objectives; (5) some of the doppler radar's performance objectives could require competing siting and scanning strategies; (6) FAA was uncertain on how best to use its improved weather detection data; and (7) an effective communication system to inform pilots of weather conditions was at least a decade away.
Download or read book Next Generation Weather Radar NEXRAD written by NEXRAD Joint System Program Office (U.S.) and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Research Laboratories Publication Abstracts written by Environmental Research Laboratories (U.S.) and published by . This book was released on 1983 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Next Generation Weather Radar NEXRAD Product Description Document written by and published by . This book was released on 1986 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book To Improve the Detection of Hazardous Aviation Weather written by United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Aviation and published by . This book was released on 1986 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fiscal Year 1992 NOAA Budget Request written by United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Environment and published by . This book was released on 1991 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
