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Pearblossom Geodetic Networks

Pearblossom Geodetic Networks. EDM Network 1980 – 2001 Early 1980s; Frequent Mid 1980s to mid 1990s quarterly measurement Late 1990s to the end annual GPS Network 1995 holc/tabl installed late 1990s dvpb 2001 ll01/pbpp installed Estimate strain change

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Pearblossom Geodetic Networks

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  1. Pearblossom Geodetic Networks EDM Network 1980 – 2001 Early 1980s; Frequent Mid 1980s to mid 1990s quarterly measurement Late 1990s to the end annual GPS Network 1995 holc/tabl installed late 1990s dvpb 2001 ll01/pbpp installed Estimate strain change versus time Lancaster Palmdale San Andreas fault

  2. Strain Changes at Pearblossom 237 ± 10 ns/yr 12 ± 10 ns/yr Landers Hector Mine -14 ± 9 ns/yr

  3. Rate removed 237 ± 10 ns/yr 12 ± 10 ns/yr -14 ± 9 ns/yr

  4. Temporal changes in strain??? Langbein and Johnson JGR 1997 Langbein et al. Science 1982

  5. 0.08 ± 0.08 mm/yr 0.07 ± 0.08 mm/yr

  6. -31.05 ± 0.10 mm/yr 7.58 ± 0.03 mm/yr -204 ± 10 ns/yr

  7. Common mode Seasonal displacements Langbein, submitted, JGR, 2007

  8. Comparison of common mode (SCIGN/BARGEN) with translation of Pearblossom GPS network

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