Crustal deformation measured in Southern California

Eos ◽  
1997 ◽  
Vol 78 (43) ◽  
pp. 477 ◽  
Author(s):  
Zheng-kang Shen ◽  
Danan Dong ◽  
Thomas Herring ◽  
Kenneth Hudnut ◽  
David Jackson ◽  
...  
Keyword(s):  
Crustal Deformation ◽  
Southern California

scholarly journals One Year of Daily Satellite Orbit and Polar Motion Estimation for Near Real Time Crustal Deformation Monitoring

1993 ◽  
Vol 156 ◽  
pp. 279-284
Author(s):  
Yehuda Bock ◽  
Jie Zhang ◽  
Peng Fang ◽  
Joachim Genrich ◽  
Keith Stark ◽  
...  
Keyword(s):  
Real Time ◽  
Crustal Deformation ◽  
Polar Motion ◽  
Southern California ◽  
Regional Scale ◽  
Satellite Orbit ◽  
Pole Position ◽  
Terrestrial Reference Frame ◽  
Deformation Monitoring ◽  
Worst Case

The Permanent GPS Geodetic Array (PGGA) in southern California consists of five continuously operating stations established to monitor crustal deformation in near real time. The near real time requirement has been problematic since GPS satellite ephemerides and predicted earth orientation values (IERS Bulletins A and B) have been found to be neither sufficiently timely nor accurate to achieve horizontal position accuracies of several mm on regional scales. Therefore, we have been estimating precise GPS ephemerides and polar motion since August 1991. An examination of overlapping 24-hour satellite arcs indicates worst-case orbital errors of approximately 0.2 meters in the radial components, 1 meter in the cross-track components and 2–3 meters in the along-track components. A comparison with very long baseline interferometry indicates an accuracy of less than 1 mas in our determination of 24-hour values of pole position. These products are sufficiently timely and accurate to achieve several mm long-term horizontal precision in regional scale measurements of crustal deformation in near real time, as has been demonstrated during the 28 June, 1992 Landers and Big Bear earthquakes in southern California. The PGGA stations were able to detect seismically induced, sub-centimeter-level motions with respect to a terrestrial reference frame defined by the global tracking stations.

Present-day crustal deformation in southern California

1994 ◽  
Vol 99 (B12) ◽  
pp. 23951-23974 ◽  
Author(s):  
Hadley O. Johnson ◽  
Duncan Carr Agnew ◽  
Frank K. Wyatt
Keyword(s):  
Crustal Deformation ◽  
Southern California

scholarly journals Comment on “Crustal deformation measured in Southern California”

Eos ◽  
1998 ◽  
Vol 79 (22) ◽  
pp. 260-260
Author(s):  
Paul A. Rydelek ◽  
I. Selwyn Sacks
Keyword(s):  
Crustal Deformation ◽  
Southern California

Aseismic crustal deformation in the Transverse Ranges of Southern California

1987 ◽  
Vol 144 (1-3) ◽  
pp. 159-180 ◽  
Author(s):  
Abe Cheng ◽  
David D. Jackson ◽  
Mitsuhiro Matsu'ura
Keyword(s):  
Crustal Deformation ◽  
Southern California ◽  
Transverse Ranges

scholarly journals Recent crustal deformation in southern California deduced from the restoration of folded and faulted strata

1999 ◽  
Vol 104 (B3) ◽  
pp. 4887-4899 ◽  
Author(s):  
J. P. Gratier ◽  
T. Hopps ◽  
C. Sorlien ◽  
T. Wright
Keyword(s):  
Crustal Deformation ◽  
Southern California
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