Geomorphic mapping to support river restoration on the Trinity River downstream from Lewiston Dam, California, 1980-2011
Links
- More information: USGS Index Page
- Document: Report (6.8 MB pdf)
- Companion File: Database of Geomorphic Features
- Data Release: USGS data release
- Download citation as: RIS | Dublin Core
Abstract
Historic land use, dam construction, water storage, and flow diversions in the Trinity River watershed have resulted in downstream geomorphic change, loss of salmonid habitat, and declines in salmonid populations. The USGS in cooperation with the Trinity River Restoration Program, a multi-agency partnership tasked with implementing federally mandated restoration, completed a geomorphic change assessment to inform the planning process for future restoration work. This report documents an ARCMAP geodatabase (v.10.0) containing geomorphic features digitized from a series of rectified orthophotographs (http://dx.doi.org/10.5066/F7TT4P04). Upland, riparian, and channel features were digitized from six available base images (1980, 1997, 2001, 2006, 2009, and 2011). This report describes the structure of the geodatabase and the methods used to delineate individual geomorphic features.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Geomorphic mapping to support river restoration on the Trinity River downstream from Lewiston Dam, California, 1980-2011 |
| Series title | Open-File Report |
| Series number | 2015-1047 |
| DOI | 10.3133/ofr20151047 |
| Year Published | 2015 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | California Water Science Center |
| Description | Report: iv, 15 p.; Database of Geomorphic Features |
| Time Range Start | 1980-01-01 |
| Time Range End | 2011-12-31 |
| Country | United States |
| State | California |
| Other Geospatial | Trinity River |
| Datum | North American Datum of 1983 |
| Projection | Universal Transverse Mercator projection, Zone 10 |
| Online Only (Y/N) | Y |
| Additional Online Files (Y/N) | Y |
| Google Analytic Metrics | Metrics page |