FIELD MEASURIMENTS OF THE SPECTRAL RESPONSE OF NATURAL WATERS

The spectral response (air-water interface reflectance and water-volume scattering) of turbid river water (99 mg/litre suspended solids) and relatively clear lake water (10 mg/litr suspended solids) was measured in situ with a field spectroradiometer. The influence of the river bottom on the spectral response of the water also was determined by using a modified Secchi disc approach. The results indicated that turbid river water had a higher spectral response than clear lake water (approximately 6 percent) in the red (0.6 - 0.7 mu) and near-infrared (0.7 - 0.9 mu) portions of the spectrum. Also, the reflectance characteristics of the river bottom did not influence the spectral response of the turbid river water when the water was deeper than 30 cm.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00991112
• Corporate Authors:

  American Society of Photogrammetry

  105 North Virginia Avenue
  Falls Church, VA  United States  22046
• Authors:
  • Bartolucci, L A
  • Robinson, B F
  • Silva, L F
• Publication Date: 1977-5

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 595-598
• Serial:
  • Photogrammetric Engineering and Remote Sensing
  • Volume: 43
  • Issue Number: 5
  • Publisher: American Society for Photogrammetry and Remote Sensing
  • ISSN: 0099-1112

Subject/Index Terms

• TRT Terms: Air water interfaces; Field tests; Lakes; Reflectivity; Rivers; Solids; Spectrum analysis; Suspensions (Chemistry); Turbidity
• Uncontrolled Terms: Field measurements; Suspended solids
• Old TRIS Terms: Spectral reflectance
• Subject Areas: Design; Highways;

Filing Info

• Accession Number: 00164060
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 9 1977 12:00AM