WATER QUALITY BY PHOTOGRAPHIC ANALYSIS

Five years of research work has led to workable and practical aerial reconnaissance techniques of correlating water quality parameters to aerial photographs. Positive correlation exists between reflectance of water and the water quality parameter of turbidity. This relationship holds for all times for a particular waste. At particular times other parameters such as suspended solids correlate to turbidity and can also be mapped. To analyze aerial photos properly to obtain water reflectance, a standard reflectance panel is needed somewhere in the frame. For this study color and color-infrared film are used and analyzed with a color microdensitometer which, with certain modifications, is also used to anlayze reflectance of water samples. Noise in the analysis includes bottom effects, reflection from the air-water interface, and path luminance, but these can all be dealt with by proper techniques.

  • Corporate Authors:

    American Society of Photogrammetry

    105 North Virginia Avenue
    Falls Church, VA  United States  22046
  • Authors:
    • Klooster, S A
    • Scherz, J P
  • Publication Date: 1974-8

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00260845
  • Record Type: Publication
  • Contract Numbers: NGL-50-002-127
  • Files: TRIS
  • Created Date: Oct 11 1974 12:00AM