Data and Resources
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Sacramento River Geomorphic Atlas, Red Bluff...PDF
The Sacramento River Geomorphic Atlas (1896–2012) (SRGA) documents the...
Additional Info
| Field | Value |
|---|---|
| Publisher | Integrated Regional Water Management |
| Contact Name | Michelle Dooley |
| Contact Email | [email protected] |
| Frequency | Other |
| Public Access Level | Public |
| Limitations | DWR makes no warranties, representations, or guarantees, either expressed or implied, as to the completeness, accuracy or correctness of the data, nor accepts or assumes any liability arising from or for any incorrect, incomplete, or misleading data provided pursuant to this document. |
| Spatial Coverage | |
| Purpose | The SRGA illustrates channel movement of the Sacramento River from 1896 to 2012. Pre- and post-Shasta Dam meander channels show waterway migration patterns and geomorphologic changes that occurred during each time period. (Construction on Shasta Dam began in 1938 and ended in 1945.) Geologic units mapped along the river indicate areas of geologic control (sedimentary rock units that resist erosion), as well as areas where sedimentary deposits display a greater potential for erosion. The meander patterns of the historical meander belt (pre-1896) and the modern meander belt (1896–2012) are apparent within the sedimentary deposits of the river’s floodplain. LiDAR data was used to create a hillshade mosaic to improve the geologic control boundary by enhancing visual signatures of terraces, meander scrolls, and abandoned channels covered by heavy vegetation. In addition, total station topographic survey data collected in the field over a 27-year period, from 1985 to 2012, indicate erosion patterns at 16 sites along the Sacramento River where there is the highest potential for bank erosion. For each of the 16 sites, geographic information system tools were used to determine the area of erosion for both the pre- and post-Shasta Dam time periods. |
| Identification Information Citation |
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| Credit | California Department of Water Resources, Northern Region Office |
| Progress | Published in Paper Form & Published on Open Data Portal |
| Maintenance and Update Frequency | None Planned |
| Point of Contact |
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| Metadata Contact |
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| Distributor Contact |
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| Distributor Contact Address |
Address Type:
California Department of Water Resources, Attention: Publications Office
P.O. Box 942836 Sacramento, California 94236-0001 USA |
| Native Dataset Environment | Spatial, Tabular |
| Last Updated | June 5, 2019, 15:24 (UTC) |