Accession Number:

ADA101105

Title:

Derivation of Shallow Ocean Bottom Reflectance Values from Color Aerial Photography,

Descriptive Note:

Corporate Author:

DEFENSE MAPPING AGENCY HYDROGRAPHIC/ TOPOGRAPHIC CENTER WASHINGTON DC

Report Date:

1981-06-01

Pagination or Media Count:

22.0

Abstract:

An alternative to the field survey method of acquiring hydrographic data is described. The technique involves the use of digitized color aerial photography in the derivation of the percentage of reflectance of shallow ocean bottom materials. These spectral reflectance values can then be used in an algorithm for calculating water depths. The reflectances that were derived in this study show a close relative comparison to ground truth information. After a discussion of the causes of discrepancies between derived and actual reflectance values, it is concluded that this method of data acquisition merits further investigation due to its high geometric fidelity, its simplicity, and its cost and time-saving benefits. Author

Subject Categories:

  • Cartography and Aerial Photography
  • Physical and Dynamic Oceanography
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE