book chapter · Society of Exploration Geophysicists eBooks · 2012
Data Reduction
Cited by 0Abstract and details only
Abstract
Abstract Lateral variations in the density of rocks cause variations in the gravity field measured at the surface, and our central problem in gravity exploration is to discover the nature of subsurface rocks, their constituents, their structure, and their distribution. Toward this end, we use the theory and tools developed and described in the first five chapters. In general, the observed gravity value g ois equal to the sum of the gravity anomaly g acaused by the geologic masses we wish to study and the contribution resulting from “noise,” g N. For present purposes, we will define the noise contribution, as the sum of all unwantedeffects, where g prepresents all the effects caused by variations in position, elevation, speed of the instrument, and so forth, for which standard corrections apply; g grepresents geologic noise effects caused by unknown or uncertain geologic features other than our target(s) of interest (discussed in Chapters 7 and 8); g irepresents untreated instrumental noise, such as nonlinear drift components in the instrument; and g dincludes survey design noise (aliasing), as shown in Figure 10of Chapter 4. In the data-reduction phase of gravity work, our goal is to identify and remove the effects that make up the first term on the right side of equation 1, g p, and to evaluate the potential magnitudes of the last two terms, g tand g d. The intended result is an anomaly field in which all the unwanted contributions to measured gravity have been partly
Cite this paper
(2012). Data Reduction. Society of Exploration Geophysicists eBooks, 81–100. https://doi.org/10.1190/1.9781560803058.ch6
“Data Reduction.” Society of Exploration Geophysicists eBooks, 2012, pp. 81–100, https://doi.org/10.1190/1.9781560803058.ch6.
2012. “Data Reduction.” Society of Exploration Geophysicists eBooks: 81–100. https://doi.org/10.1190/1.9781560803058.ch6.
(2012) ‘Data Reduction’, Society of Exploration Geophysicists eBooks, pp. 81–100. Available at: https://doi.org/10.1190/1.9781560803058.ch6.
@incollection{anon2012data,
title = {{Data Reduction}},
booktitle = {Society of Exploration Geophysicists eBooks},
pages = {81--100},
year = {2012},
doi = {10.1190/1.9781560803058.ch6}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.