Tutorials are presented on history of ice forecasting, thermal regime of the Lakes, physical processes affecting propagation for the purpose of updating and refining aircraft noise measurement standards and improving aircraft noise prediction techniques. The effort involved acquisition of acoustical, meteorological, aircraft tracking, and aircraft operational data. The sound source was a Lockheed T-33A aircraft, propelled by a single Allison J33-A-35 turbojet engine, operating at constant thrust in level flight. Microphones were located near the ground in an array normal to the flight track. All tests were conducted at the Pendleton Municipal Airport, Pendleton, Oregon during two separate time periods in July and September 1970. (Author)

  • Corporate Authors:

    National Weather Service

    Silver Spring, MD  United States 
  • Authors:
    • Snider, C R
  • Publication Date: 1971-12

Media Info

  • Pagination: 57 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00033675
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NOAA-TM-NWS-CR-48 Tech Memo
  • Files: TRIS
  • Created Date: Aug 15 1972 12:00AM