Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
Book Description
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).
Automated Low-cost Weather Observation System (ALWOS)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
Book Description
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).
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
Book Description
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).
Automated Weather Observing Systems (AWOS) for Non-federal Applications
Author: United States. Federal Aviation Administration
Publisher:
ISBN:
Category : Weather reporting, Radio
Languages : en
Pages : 56
Book Description
Publisher:
ISBN:
Category : Weather reporting, Radio
Languages : en
Pages : 56
Book Description
Automated Surface Observing System (ASOS) and Automated Weather Observing System (AWOS) for Aviation Use in California
Author: Garth Hopkins
Publisher:
ISBN:
Category : Automatic meteorological stations
Languages : en
Pages : 20
Book Description
Publisher:
ISBN:
Category : Automatic meteorological stations
Languages : en
Pages : 20
Book Description
Aviation Automated Weather Observation System (AV-AWOS).
Author: NATIONAL WEATHER SERVICE SILVER SPRING MD.
Publisher:
ISBN:
Category :
Languages : en
Pages : 127
Book Description
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).
Publisher:
ISBN:
Category :
Languages : en
Pages : 127
Book Description
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).
Automated Surface Observing System
Author:
Publisher:
ISBN:
Category : Automated Surface Observing System
Languages : en
Pages : 108
Book Description
Publisher:
ISBN:
Category : Automated Surface Observing System
Languages : en
Pages : 108
Book Description
Aviation Automated Weather Observation System (AV-AWOS)
Author: United States. National Weather Service
Publisher:
ISBN:
Category : Automatic meteorological stations
Languages : en
Pages : 131
Book Description
Publisher:
ISBN:
Category : Automatic meteorological stations
Languages : en
Pages : 131
Book Description
Installation of Automated Weather Observing Systems by FAA at Commercial Airports is Not Justified
Author: United States. General Accounting Office
Publisher:
ISBN:
Category : Airports
Languages : en
Pages : 44
Book Description
Publisher:
ISBN:
Category : Airports
Languages : en
Pages : 44
Book Description
Automated Low-cost Weather Observation System (ALWOS)
Author: Wayne Huffman
Publisher:
ISBN:
Category : Meteorology in aeronautics
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category : Meteorology in aeronautics
Languages : en
Pages : 0
Book Description
Automated Surface Observing System
Author:
Publisher:
ISBN:
Category : Automated Surface Observing System
Languages : en
Pages : 108
Book Description
Publisher:
ISBN:
Category : Automated Surface Observing System
Languages : en
Pages : 108
Book Description
Automated Weather Observing System (AWOS) Demonstration Program
Author: P. J. O'Brien
Publisher:
ISBN:
Category :
Languages : en
Pages : 251
Book Description
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.
Publisher:
ISBN:
Category :
Languages : en
Pages : 251
Book Description
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.