MONITORING LAND SUBSIDENCE IN SACRAMENTO VALLEY, CALIFORNIA, USING GPS

The paper describes how the Global Positioning System (GPS) survey method provides a regional vertical control network with a high degree of accuracy at a reasonable cost, with the freedom to establish a network of bench marks where needed. GPS survey data facilitate subsidence studies because vertical control data obtained from sequential surveys provide point-in-time vertical control data that can be compared with subsequent surveys to accurately indicate rates of subsidence. GPS surveys made in 1985 and 1986 are described. The surveys demonstrate that GPS is a cost-effective means of detecting and monitoring land subsidence, and that the control network established in 1985 and 1986 can be expanded.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339453
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Blodgett, J C
  • Ikehara, M E
  • Williams, G E
• Publication Date: 1990-5

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 112-130
• Serial:
  • Journal of Surveying Engineering
  • Volume: 116
  • Issue Number: 2
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9453
  • Serial URL: http://ascelibrary.org/journal/jsued2

Subject/Index Terms

• TRT Terms: Cost effectiveness; Data collection; Geological subsidence; Global Positioning System; Monitoring; Structural settlement; Surveys
• Geographic Terms: California
• Subject Areas: Administration and Management; Geotechnology; Highways; I41: General Soil Surveys;

Filing Info

• Accession Number: 00494606
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 30 1990 12:00AM