| Identifier | 2017-649-FA | ||||||||
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| Purpose | Topographic and Bathymetric survey of Little Holland Tract and Wildlands restoration site | ||||||||
| Location | Rio Vista, CA Little Holland Tract, Sacramento River Delta | ||||||||
| Summary | base, bathy, field_notes, matlab, photos, planning.svp, and topo data submitted to FAD 6/29/2017; Andrew Stevens | ||||||||
| Info derived | Combined topographic/bathymetric map of Little Holland Tract and Wildlands restoration site. | ||||||||
| Comments | Entries for this field activity are based on entries from Field Activity 2015-642-FA | ||||||||
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| Vehicles | MarFac; Chevy Suburban - gray; 7 pass; G62-2874L |
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| Organization |
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
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| Principal investigators | Jessica R Lacy | ||||||||
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| Data category: | Imagery, Location-Elevation, Sonar |
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| Data type: | Photo, Navigation, Transects, Single Beam |
| Equipment | Usage description | Data types | Datasets |
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| Waverunners | Navigation, Single Beam | 1 | |
| camera | Photo | (no data reported) | |
| Trimble R7 GPS (AS) | Benchmarks, Navigation, Profiles, Transects | 2 |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| Topography data collected in the Liberty Island Conservation Bank portion of the Cache Slough Complex | Trimble R7 GPS (AS) | This portion of the USGS data release presents topography data acquired in the Liberty Island Conservation Wildlands restoration site in 2017 (USGS Field Activity Number 2017-649-FA). Topographic data were collected on June 26 and 27, 2017 by walking with global navigation satellite system (GNSS) receivers mounted on backpacks. Hand-held data collectors were used to log raw data and display navigational information as the surveyors traversed the landscape. The final point data are provided in a comma-separated text file and are projected in cartesian coordinates using the Universal Transverse Mercator (UTM) Zone 10 North, meters coordinate system. | Andrew Stevens |
| Dataset name | Equipment | Description | Dataset contact |
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| Single-beam bathymetry data collected in the Cache Slough Complex, Sacramento-San Joaquin Delta, California, during USGS field activities 2017-649-FA and 2018-684-FA | Waverunners | This portion of the USGS data release presents single beam bathymetry data collected during surveys performed in the Cache Slough Complex, Sacramento-San Joaquin Delta, California in 2017 and 2018 (USGS Field Activity Numbers 2017-649-FA and 2018-684-FA). Bathymetry data were collected using personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The final point data from the PWCs are provided in a comma-separated text file and are projected in cartesian coordinates using the Universal Transverse Mercator (UTM) Zone 10 North, meters coordinate system. | Andrew Stevens |
| Digital elevation model (DEM) of the Cache Slough Complex, Sacramento-San Joaquin Delta, California | Trimble R7 GPS (AS) | This metadata describes a digital elevation model (DEM) created from bathymetric and topographic data collected between 2004 and 2019 in the Cache Slough Complex (CSC), northern Sacramento-San Joaquin Delta, California. We merged the newly collected bathymetric and topographic data presented in this data release (DOI:10.5066/P9AQSRVH) with 2019 surveys by the California Department of Water Resources (DWR), 2017 USGS Sacramento Delta Lidar, and 2004 bathymetry data from the Army Corp of Engineers. Small gaps of missing data were filled with existing DWR/USGS Delta DEMs to produce a seamless DEM of the Cache Slough Complex with a grid resolution of 1 m. Remaining gaps in the DEM are areas where there is currently no available data. | Theresa Fregoso |
