Improvement of water resources management through the use of satellites flood plain delineationThe delineation of flood-prone areas is an important activity in several parts of the world. Conventional methods map the topography surrounding the river via ground surveys and supplementary aerophotography. The conventional method costs approximately $2,000 per river-kilometer, is laborious and time-consuming. ERTS information can supplement this method by two complementary techniques: (1) the dynamic method images the floods as they occur, exploiting the fact that visible evidence of inundation remains for a substantial period after the high waters have receded; (2) the static method utilizes the fact that several flood plains have been found recognizable on ERTS imagery from distinctive, permanent indicators left by previous floods. For areas whose full development is still in the future, the dynamic method allows the gradual buildup with time of a flood plain map, by simply correlating existing ERTS imagery. The static method allows in several areas, a first-cut indication, of proneness to floods.
Document ID
19750038460
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Castruccio, P. A. (Ecosystems International, Inc. Gambrills, Md., United States)
Rango, A. (NASA Goddard Space Flight Center Greenbelt, Md., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1974
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: Seminar on Space Applications of Direct Interest to Developing Countries