Subsidence determination in the Central Valley, California

• Autorzy: Romero M. , Berber M. M.

Identyfikatory

DOI

10.2478/rgg-2018-0012

• Języki publikacji: EN

Abstrakty

EN

Twenty four hour GNSS (Global Navigation Satellite System) data acquired monthly for 5 years from 8 CORS (Continuously Operating Reference Station) stations in Central Valley, California are processed and vertical velocities of the points are determined. To process GNSS data, online GNSS data processing service APPS (Automatic Precise Positioning Service) is used. GNSS data downloaded from NGS (National Geodetic Survey) CORS are analyzed and subsidence at these points is portrayed with graphics. It is revealed that elevation changes range from 5 mm uplift in the north to 163 mm subsidence in the southern part of the valley.

Słowa kluczowe

EN

subsidence; GNSS; Global Navigation Satellite System; APPS; Automatic Precise Positioning Service; elevation changes

PL

subsydencja; GNSS; nawigacja satelitarna; APPS; pozycjonowanie precyzyjne; zmiany wysokości; zmiany elewacji

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy and Geoinformatics
• Rocznik: 2018
• Tom: Vol. 106
• Strony: 35--42
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Romero M.

• Department of Civil and Geomatics Engineering, California State University, Fresno, 2320 E. San Ramon Avenue, MS/EE 94, Fresno, CA 93740, United States

autor

Berber M. M.

• Department of Civil and Geomatics Engineering, California State University, Fresno, 2320 E. San Ramon Avenue, MS/EE 94, Fresno, CA 93740, United States

Bibliografia

• [1] Akarsu, V., D. U. Sanli, and E. Arslan (2015). “Accuracy of velocities from repeated GPS measurements”, Nat. Hazards Earth Syst. Sci., 15, 875–884.
• [2] Blewitt, G. and Lavalleé, D. (2002). “Effect of annual signals on geodetic velocity”, J. Geophys. Res., 107, ETG 9-1–ETG 9-11.
• [3] California Department of Water Resources (2014). “Summary of recent, historical, and estimated potential for future land subsidence in California.” http://www.water.ca.gov/groundwater/docs/Summary_of_Recent_Historical_Potential_Subsidence_in_CA_Final_with_Appendix.pdf.
• [4] Farr, T.G., C. Jones, Z. Liu (2015). “Progress report: subsidence in the Central Valley, California.” http://water.ca.gov/groundwater/docs/NASA_REPORT.pdf.
• [5] Lin, L-S. (2014). “Orthometric Height Improvement in Tainan City using RTK GPS and Local Geoid Corrector Surface Models”, Journal of Surveying Engineering, 140(1), 35-43.
• [6] Wang, G. and Soler, T. (2014). “Measuring Land Subsidence Using GPS: Ellipsoid Height versus Orthometric Height”, Journal of Surveying Engineering, 141(2), (05014004)1-12.
• [7] Zumberge, J. F., M. B. Heflin, D. C. Jefferson, M. M. Watkins, F.H. Webb (1997) “Precise point positioning for the efficient and robust analysis of GPS data from large networks”, J. Geophys. Res., v 102, No. B3, pp 5005-5017.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).