Development And Evaluation Of A Tower Slant Visual Range System
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Analysis And Specification Of Slant Wind Shear
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Author : H. Albert Brown
language : en
Publisher:
Release Date : 1982
Analysis And Specification Of Slant Wind Shear written by H. Albert Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Meteorological instruments categories.
Wind data have been analyzed to produce frequencies of occurrence of slant wind shear with respect to surface wind speed, time of day, vertical temperature gradient and wind shear direction differences. Slant wind shear (SWS) is a measurement that more closely approximates the shear encountered by an aircraft on takeoff or landing. It is computed as the wind shear between a higher level wind (in this study, 60 m) and the surface separated by a horizontal distance equivalent to that which an aircraft would traverse in descending or ascending that height. Additional study was also completed on the specification of slant wind shear along the runway through the use of an offset towersurface site system.
Development And Evaluation Of A Tower Slant Visual Range System
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Author : Edward B. Geisler
language : en
Publisher:
Release Date : 1979
Development And Evaluation Of A Tower Slant Visual Range System written by Edward B. Geisler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Markov processes categories.
Analysis of remote tower forward scatter meter measurements of extinction coefficient collected at the Air Force Geophysics Laboratory Weather Test Facility at Otis AFB, Massachusetts demonstrated the accuracy of a remote tower slant visual range (SVR) system. This report describes the final phase of the development and evaluation of a tower SVR system in which the remote tower approach has been extended to include Category I operations. Tests give additional evidence that the runway visual range (RVR) measurements are often not representative of pilot visibility during approach and touchdown. An examination of three short range prediction techniques for forecast times of 2, 5, 10, 30 and 60 minutes revealed that the Equivalent Markov technique provides accurate and reliable forecasts of below-limit SVR conditions and yields slightly better results than the Markov and REEP techniques. (Author).
Instrumentation Papers
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Author :
language : en
Publisher:
Release Date : 1979
Instrumentation Papers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Aeronautical instruments categories.
Technical Abstract Bulletin
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Author :
language : en
Publisher:
Release Date : 1979
Technical Abstract Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Science categories.
A Demonstration Test Of The Modular Automated Weather System Maws
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Author : Donald A. Chisholm
language : en
Publisher:
Release Date : 1980
A Demonstration Test Of The Modular Automated Weather System Maws written by Donald A. Chisholm and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Automatic meteorological stations categories.
A microprocessor-based automated airfield weather observing and forecasting system called MAWS (Modular Automated Weather System) was developed to demonstrate the feasibility of modernizing many of the observing and forecasting functions performed in operational base weather stations. Scott Air Force Base, Illinois, was chosen as the demonstration site and operations were conducted from January 1977 through January 1979. Weather sensors at five observation sites around the airfields were polled several times each minute, the data transmitted over commercial, voice-grade telephone lines to a central supervisory microprocessor where the data were suitably collated, averaged and formatted for display on alpha-numeric display devices at key locations and for magnetic tape archiving for post analysis. The demonstration confirmed that modernized weather support can be largely achieved with state-of-the-art, commercially available hardware/software. Such a system would be compatible with other automation efforts in civilian weather services and other C-cubed efforts in the DOD. The advantage of spatially and temporally detailed weather information in marginal and adverse situations was documented. Sensor siting considerations were addressed in relation to specific weather elements and observational requirements. The contributions of automated met watch procedures and short-range guidance forecasts of RVR landing minima were demonstrated. Feedback on system performance and acceptability was obtained from cognizant AWS offices.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1989
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Aeronautics categories.
An Automated Low Cloud Prediction System
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Author : Edward B. Geisler
language : en
Publisher:
Release Date : 1981
An Automated Low Cloud Prediction System written by Edward B. Geisler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Automatic meteorological stations categories.
Survey Of Sensors For Automated Tactical Weather Observations
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Author : Eugene Y. Moroz
language : en
Publisher:
Release Date : 1980
Survey Of Sensors For Automated Tactical Weather Observations written by Eugene Y. Moroz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Automatic meteorological stations categories.
Current requirements for tactical weather systems at fixed and bare- base airfields necessitate an upgrading of meteorological sensor capability, system automation, and a range of data dissemination options. A program has been initiated at the Air Force Geophysics Laboratory to implement these objectives. In the first phase of this program, a survey of the state-of-the-art has been made for the identification of equipment suitable for such a system. Government inventoried instrumentation, as well as those from commercial sources, have been considered. Criteria to be used in sensor selection will include both accuracy and the ability to operate trouble free over a wide range of environmental extremes. When appropriate, in-house programs will be initiated to correct deficiencies. During the coming year, field tests and intercomparisons will be made of selected sensors. Instrumentation will eventually be integrated into an automated system with local and/or remote display of weather elements tailored to user requirements.
National Airport System Plan
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Author : United States. Federal Aviation Administration
language : en
Publisher:
Release Date : 1973
National Airport System Plan written by United States. Federal Aviation Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Airports categories.
Srim Index
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Author :
language : en
Publisher:
Release Date : 1982
Srim Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Computer programming categories.