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Consequences of flight height and line spacing on airborne (helicopter) gravity gradient resolution in the Great Sand Dunes National Park and Preserve, Colorado

The Leading Edge

By:
DOI: 10.1190/tle32080932.1

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Abstract

Line spacing and flight height are critical parameters in airborne gravity gradient surveys; the optimal trade-off between survey costs and desired resolution, however, is different for every situation. This article investigates the additional benefit of reducing the flight height and line spacing though a study of a survey conducted over the Great Sand Dunes National Park and Preserve, which is the highest-resolution public-domain airborne gravity gradient data set available, with overlapping high- and lower-resolution surveys. By using Fourier analysis and matched filtering, it is shown that while the lower-resolution survey delineates the target body, reducing the flight height from 80 m to 40 m and the line spacing from 100 m to 50 m improves the recoverable resolution even at basement depths.

Geospatial Extents

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Consequences of flight height and line spacing on airborne (helicopter) gravity gradient resolution in the Great Sand Dunes National Park and Preserve, Colorado
Series title:
The Leading Edge
DOI:
10.1190/tle32080932.1
Volume
32
Issue:
8
Year Published:
2013
Language:
English
Publisher:
Society of Exploration Geophysicists
Publisher location:
Tulsa, OK
Contributing office(s):
Crustal Geophysics and Geochemistry Science Center
Description:
p. 932-4, 936, 938
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
The Leading Edge
First page:
932
Last page:
938
Country:
United States
State:
Colorado
Other Geospatial:
Great Sand Dunes National Park And Preserve