Two years of research have been conducted to determine the feasibility of using microwave radiometry for the detection, identification, and surveillance of oil pollution. Theoretical studies consisted of a review of contemporary theory concerning parameters that influence microwave emission from both unpolluted and oil-covered seas. Laboratory investigations confirm results obtained from earlier studies and established the response characteristics of the 3.2-mm sensor to continuous oil films. Airborne measurements of controlled spills off the Southern California Coast were performed with dual-polarized 3.2- and 8.1-mm sensors oriented with a forward antenna viewing angle 45 deg above nadir. Four sets of oil spills, or missions, were performed to obtain data over a variety of sea-surface conditions. Pollutants used for the tests included No. 2 diesel fuel, 26.1 and 21.6 API gravity crude oils, and 9.7 API gravity fuel oil. Significant microwave brightness temperature oil slick signatures were noted for a wide range of ocean conditions (sea states 1-4) and oil film thickness (thickness less than 1 micron and greater). Based on the experimental results a passive microwave imaging system configuration has been recommended for oil pollution surveillance. (Author)

  • Corporate Authors:

    Aerojet General Corporation

    9200 East Flair Drive
    El Monte, CA  United States  91734
  • Authors:
    • Meeks, D C
    • Williams, D P
    • Wilcox, R M
    • Edgerton, A T
  • Publication Date: 1971-3

Media Info

  • Pagination: 72 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00024761
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: USCG-714104/A/002
  • Contract Numbers: DOT-CG-93228-A
  • Files: TRIS
  • Created Date: Jan 14 1973 12:00AM