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The time-domain behavior of power-law noises. [of many geophysical phenomena]
The power spectra of many geophysical phenomena are well approximated by a power-law dependence on frequency or wavenumber. I derive a simple expression for the root-mean square variability of a
SPOTL: Some Programs for Ocean-Tide Loading
  • D. Agnew
  • Environmental Science
  • 28 March 2012
The increasing precision of geodetic measurements has made the effects of loading by ocean tides(or other sources) important to a wider range of researchers than just the earth-tide
NLOADF: A program for computing ocean‐tide loading
The loading of the Earth by the ocean tides produces several kinds of signals which can be measured by geodetic technique. In order to compute these most accurately, a combination of global and local
Seismic waves increase permeability
The response of water well levels to solid Earth tides to solidEarth tides to measure permeability over a 20-year period is used to relate the phase response to aquifer properties and interprets the changes in phase response as due to changes in permeability.
Strainmeters and tiltmeters
Despite steady effort over the last century, continuously recording tiltmeters and strainmeters have not yet been successful except for earth tide measurements. This article reviews the techniques
Finding the repeat times of the GPS constellation
Single-epoch estimates of position using GPS are improved by removing multipath signals, which repeat when the GPS constellation does. We present two programs for finding this repeat time, one using
The complete (3‐D) surface displacement field in the epicentral area of the 1999 MW7.1 Hector Mine Earthquake, California, from space geodetic observations
We use Interferometric Synthetic Aperture Radar (InSAR) data to derive continuous maps for three orthogonal components of the co‐seismic surface displacement field due to the 1999 Mw7.1 Hector Mine
Uplift and subsidence associated with the great Aceh‐Andaman earthquake of 2004
Rupture of the Sunda megathrust on 26 December 2004 produced broad regions of uplift and subsidence. We define the pivot line separating these regions as a first step in defining the lateral extent
Ongoing drought-induced uplift in the western United States
Almost imperceptible crustal uplift is used to quantify drought-induced regional water depletion from the drought, and the total deficit is estimated to be ~240 gigatons, equivalent to a 10cm layer of water over the entire region, or the annual mass loss from the Greenland Ice Sheet.
A unified analysis of crustal motion in Southern California, 1970–2004: The SCEC crustal motion map
[1] To determine crustal motions in and around southern California, we have processed and combined trilateration data collected from 1970 to 1992, VLBI data from 1979 to 1992, and GPS data from 1986