Skip to Main Content
Book Chapter

Estimating Water Depth from Satellite Images

Published:
January 01, 1994

Abstract

As an alternative to ship-borne water depth surveys, water depth can be directly estimated from the Landsat and SPOT images (Nordman et al., 1990; references in Appendix C are included in the reference list at the end of Part 1). Water absorbs light exponentially with increasing depth, so assuming that the sea bottom has constant reflectance and that the water quality is the same everywhere, then the log of the brightness measured by the satellite is linearly proportional to the water depth.

In other words, if we proceed from the beach toward progressively deeper water offshore, the brightness sensed by a satellite in blue, green, and red visible light will decrease exponentially. The rate of the exponential decrease is greatest for the red, less so for the green, and slowest for the blue light. That is, the blue light will penetrate deeper than green or red light.

You do not currently have access to this article.

Figures & Tables

Contents

AAPG Studies in Geology

Satellite Images of Carbonate Depositional Settings

P. M. Harris
P. M. Harris
Search for other works by this author on:
W. S. Kowalik
W. S. Kowalik
Search for other works by this author on:
American Association of Petroleum Geologists
Volume
11
ISBN electronic:
9781629810171
Publication date:
January 01, 1994

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal