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- Publications
- Influence
The time-domain behavior of power-law noises. [of many geophysical phenomena]
- D. Agnew
- Geology
- 21 February 1992
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… Expand
NLOADF: A program for computing ocean‐tide loading
- D. Agnew
- Geology
- 10 March 1997
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… Expand
Seismic waves increase permeability
- J. Elkhoury, E. Brodsky, D. Agnew
- Medicine
- Nature
- 29 June 2006
Earthquakes have been observed to affect hydrological systems in a variety of ways—water well levels can change dramatically, streams can become fuller and spring discharges can increase at the time… Expand
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… Expand
SPOTL: Some Programs for Ocean-Tide Loading
- D. Agnew
- Geography
- 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… Expand
Strainmeters and tiltmeters
- D. Agnew
- Geology
- 1 August 1986
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… Expand
The complete (3-D) surface displacement field in the epicentral area of the 1999 MW7.1 Hector Mine E
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 M_w7.1 Hector Mine… Expand
Uplift and subsidence associated with the great Aceh‐Andaman earthquake of 2004
- A. Meltzner, K. Sieh, +4 authors D. Natawidjaja
- Geology
- 1 February 2006
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… Expand
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… Expand
Absence of earthquake correlation with Earth tides: An indication of high preseismic fault stress rate
- J. E. Vidale, D. Agnew, M. Johnston, D. Oppenheimer
- Geology
- 10 October 1998
Because the rate of stress change from the Earth tides exceeds that from tectonic stress accumulation, tidal triggering of earthquakes would be expected if the final hours of loading of the fault… Expand