Download or read book Investigation of Sensors and Techniques to Automate Weather Observations written by Eugene Y. Moroz and published by . This book was released on 1977 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several sensors and techniques currently being investigated at the Air Force Geophysics Laboratory as part of its program to automate the observation of weather parameters are described. Included are a lidar cloud-height measuring system, a laser weather identifier, a decision tree approach for determination of present weather, a lidar slant visual range measuring system, and a tower mounted visibility meter approach for determination of slant visual range. (Author)

Download or read book Automation of Visual Weather Observations written by H. Albert Brown and published by . This book was released on 1980 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was performed to determine the feasibility of objectively and automatically determining two key components of an aviation weather observation: present weather and obstruction to vision. The automated system utilized was an instrumented tower and surface array of sensors located at the AFGL Weather Test Facility (WTF), Otis AFB, Massachusetts. The objective method consisted of a decision-tree program (AUTO) based on several uniquely different responses by these weather sensors to the same weather phenomena and on discrimination techniques using tower and surface instrument comparison. The ability of AUTO to monitor rapidly changing weather events and to discriminate different types of weather is demonstrated through selected hourly periods of observations taken at 1-min intervals. Hourly observations generated over a 14-month period, March 1978 through April 1979, are compared with FAA observations to determine the effectiveness of AUTO. Major areas of agreement were found in the discrimination of fog, haze, snow, rain, and no weather. Final results show that the FAA observations of the existence and non-existence of obstructions to vision and present weather were duplicated in 82 and 86% of the cases. Thus the acquisition of real weather for an aviation weather observation, a duty presently performed by a human observer, is obtainable through an objective decision-tree program using an automated sensor array. (Author).

Download or read book Automation of Visual Weather Observations written by H. Albert Brown and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was performed to determine the feasibility of objectively and automatically determining two key components of an aviation weather observation: present weather and obstruction to vision. The automated system utilized was an instrumented tower and surface array of sensors located at the AFGL Weather Test Facility (WTF), Otis AFB, Massachusetts. The objective method consisted of a decision-tree program (AUTO) based on several uniquely different responses by these weather sensors to the same weather phenomena and on discrimination techniques using tower and surface instrument comparison. The ability of AUTO to monitor rapidly changing weather events and to discriminate different types of weather is demonstrated through selected hourly periods of observations taken at 1-min intervals. Hourly observations generated over a 14-month period, March 1978 through April 1979, are compared with FAA observations to determine the effectiveness of AUTO. Major areas of agreement were found in the discrimination of fog, haze, snow, rain, and no weather. Final results show that the FAA observations of the existence and non-existence of obstructions to vision and present weather were duplicated in 82 and 86% of the cases. Thus the acquisition of real weather for an aviation weather observation, a duty presently performed by a human observer, is obtainable through an objective decision-tree program using an automated sensor array. (Author)

Download or read book Preliminary Assessment of an Automated System for Detecting Present Weather written by H. Albert Brown and published by . This book was released on 1979 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The determination of subjective weather observations through the use of an automated array of weather sensors coupled with a decision tree program was examined through analysis of data gathered at the AFGL Weather Test Facility at Otis AFB, Mass. This report describes the instruments used in the array, the response of the instruments to type of weather observed, and the decision tree programs. Preliminary results indicate that a computer-controlled weather sensor array has potential value in determining objectively those types of weather previously relegated to human responsibility.

Download or read book The Federal Plan for Meteorological Services and Supporting Research written by United States. Office of Federal Coordinator for Meteorological Services and Supporting Research and published by . This book was released on 1993 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Federal Plan for Meteorological Services and Supporting Research written by and published by . This book was released on with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Research Papers written by and published by . This book was released on with total page 382 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 1987 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Departments of State Justice and Commerce the judiciary and related agencies appropriations for 1981 written by United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of State, Justice, and Commerce, the Judiciary, and Related Agencies and published by . This book was released on 1980 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Meteorological Geoastrophysical Abstracts written by and published by . This book was released on 1977-09 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Federal Aviation Administration Plan for Research Engineering and Development written by United States. Federal Aviation Administration and published by . This book was released on 1985 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Departments of Commerce Justice and State the Judiciary and Related Agencies Appropriations for 1982 Department of Commerce written by United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of Commerce, Justice, and State, the Judiciary, and Related Agencies and published by . This book was released on 1981 with total page 1552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book R D Abstracts written by Technology Reports Centre (Great Britain) and published by . This book was released on 1978 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Environmental Laboratories Appendix written by United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution and published by . This book was released on 1971 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearings Reports and Prints of the Senate Committee on Public Works written by United States. Congress. Senate. Committee on Public Works and published by . This book was released on with total page 1942 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Environmental Laboratories Hearings Before the Subcommittee on Air and Water Pollution written by United States. Congress. Senate. Committee on Public Works and published by . This book was released on 1971 with total page 1352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geographical Abstracts written by and published by . This book was released on 1987 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt: