Download or read book Automated Low cost Weather Observation System ALWOS written by and published by . This book was released on 1982 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the primary objectives of this program was to design a developmental model ALWOS for the lowest possible cost. Reliability and maintenance costs over the life of the system were considered in addition to the initial purchase and installation costs. To this end, field proven, off the shelf components were used wherever possible throughout the system. Another primary objective was modularity of design. The hardware and software were constructed to allow flexibility in interfacing a variety of sensors or adding additional sensors to measure new parameters. The ALWOS as configured at Dulles Airport is a low-cost and flexible system which can provide an automatic weather observation from the data acquisition, processing and display point of view, with the potential for good long-term system reliability. After a period of familiarization with the equipment and dealing with an assortment of system and sensor problems, the functioning of the system became relatively trouble-free. Evaluation of the ALWOS supports the generally accepted concept that automated, low-cost weather observation systems can indeed perform such a function given suitable sensing devices. (Author).

Download or read book Automated Weather Observing Systems AWOS for Non federal Applications written by United States. Federal Aviation Administration and published by . This book was released on 1990 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Automated Surface Observing System ASOS and Automated Weather Observing System AWOS for Aviation Use in California written by Garth Hopkins and published by . This book was released on 1998 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Automated Surface Observing System written by and published by . This book was released on 1998 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aviation Automated Weather Observation System AV AWOS written by NATIONAL WEATHER SERVICE SILVER SPRING MD. and published by . This book was released on 1979 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: The test results of the Aviation Automated Weather Observation System (AV-AWOS) at Newport News, Virginia, are presented. The rationale for the cloud and visibility algorithms is discussed. Verification of these algorithms is presented. The algorithms for converting sensor data to automated observations of cloud height, sky cover, and visibility are specified. Tabulation of the user reactions to an automated observation is presented. (Author).

Download or read book Aviation Automated Weather Observation System AV AWOS written by United States. National Weather Service and published by . This book was released on 1979 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Installation of Automated Weather Observing Systems by FAA at Commercial Airports is Not Justified written by United States. General Accounting Office and published by . This book was released on 1985 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Automated Low cost Weather Observation System ALWOS written by Wayne Huffman and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Automated Weather Observing System AWOS Demonstration Program written by P. J. O'Brien and published by . This book was released on 1984 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: An operational demonstration of the Automated Weather Observing System (AWOS) was conducted at 14 airport installations in the contiguous United States and Alaska. The AWOS demonstration units employed were procured from two system manufacturers, WeatherMeasure and Artais, and consisted of commercially available equipment including sensors, processors, and auxiliary hardware. The sensors were used to detect and measure nine atmospheric parameters: cloud height, visibility, wind speed, wind direction, barometric pressure, temperature, dew point, precipitation occurrence, and precipitation amount. These data were then digitized, processed, synthesized into voice messages, and updated each minute. Access to the voice message by pilots in flight was accomplished by very high frequency (VHF) omnidirectional range (VOR) or discrete VHF, and for preflight purposes, by telephone access. This report discusses the analyses and provides results and conclusions derived from AWOS demonstration source data collected during the period September 1983 through June 1984. Source data included pilot questionnaire user response, maintenance personnel failure logs, hourly AWOS observations, and official observations when available. It was concluded that, in general, the performance of the system and all sensors at the 14 field sites was acceptable except for the ceilometer and precipitation sensors.

Download or read book An Automated Cloud Observation System ACOS written by Edward B. Geisler and published by . This book was released on 1980 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis of cloud base height data collected during a seven-month period from a three Rotating Beam Ceilometer (RBC) network on Otis AFB, Massachusetts, demonstrated the accuracy of an automated cloud observation system. The high degree of correspondence between the automated and human observations of cloud height, low cloud amount, multiple cloud layers, and ceiling confirms the accuracy of the hierarchical clustering technique when applied to a network of RBC's confined to the immediate environs of an airfield. Tests demonstrated only slight improvements in automated cloud observation are realized by incorporating additional information from a second and third RBC on or near an airfield.

Download or read book AWOS Automated Weather Observation System written by Canada. Transport Canada. Civil Aviation and published by . This book was released on 1995 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Automated Surface Observing System written by and published by . This book was released on 1998 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Automated Weather Observing Systems AWOS for Non federal Applications written by United States. Federal Aviation Administration and published by . This book was released on 1995 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Establishment and Discontinuance Criteria for Automated Weather Observing Systems AWOS written by Ward L. Keech and published by . This book was released on 1983 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report develops establishment and discontinuance criteria for automated weather observing systems (AWOS) for publication in FAA Order 7031.2B, Airway Planning Standard Number One. Airway Planning Standard Number One contains the policy and summarizes the criteria used in determining eligibility of terminal locations for establishment, discontinuance and improvements of air navigation facilities and air traffic control services. The criteria developed in this report are based on rigorous life-cycle cost effectiveness and benefit/cost analyses of AWOS which measure weather and environmental parameters essential to FAA operations--wind direction and speed, temperature and dew point, altimeter setting, ceiling, visibility, precipitation and thunderstorm activity. (Author).

Download or read book AVIATION AUTOMATED WEATHER OBSERVATION SYSTEM AV AWOS written by and published by . This book was released on 1979 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Automated Weather Observing System AWOS written by United States. Federal Aviation Administration and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Integration of Aviation Automated Weather Observation Systems AWOS with Roadside Weather Information Systems RWIS written by Douglas E. Galarus and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: