Subsidence of the land surface in the Tulare‐Wasco (Delano) and Los Banos‐Kettleman City area, San Joaquin Valley, California
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Abstract
Releveling of bench marks in 1953 and 1954 by the U. S. Coast and Geodetic Survey indicates that subsidence of the land surface has now exceeded ten feet in two areas of the San Joaquin Valley. In the Tulare‐Wasco (or Delano) area of Tulare County, subsidence which was as much as rive feet in 1940 now has about doubled. The maximum rate of subsidence in recent years has been about 0.8 foot a year. In the Los Banos‐Kettleman City area of western Fresno County, major subsidence extends from Ora Loma on the north beyond Huron on the south, a distance of 70 miles or more. The maximum rate there approaches one foot a year. Plots of subsidence against decline in artesian pressure suggest that pressure decline is a major cause of the subsidence. Compaction of the soil after irrigation is known to have caused substantial local subsidence in the Los Banos‐Kettleman City area, and tectonic adjustment and other causes also may have contributed to the subsidence.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Subsidence of the land surface in the Tulare‐Wasco (Delano) and Los Banos‐Kettleman City area, San Joaquin Valley, California |
| Series title | Eos, Transactions, American Geophysical Union |
| DOI | 10.1029/TR037i003p00287 |
| Volume | 37 |
| Issue | 3 |
| Year Published | 1956 |
| Language | English |
| Publisher | American Geophysical Union |
| Description | 10 p. |
| First page | 287 |
| Last page | 296 |
| Country | United States |
| State | California |
| Other Geospatial | Tulare‐Wasco (Delano) and Los Banos‐Kettleman City area, San Joaquin Valley, California |
| Google Analytic Metrics | Metrics page |