| Identifier | 2018-684-FA | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Purpose | collect baseline bathymetry and acoustic backscatter data within the San Francisco Bay delta and the Sacramento deep-water shipping channel | ||||||||
| Location | San Francisco Bay Delta | ||||||||
| Summary | Bathymetry and acoustic backscatter | ||||||||
| Info derived | bathymetry and acoustic-backscatter | ||||||||
| Projects | |||||||||
| Platform |
|
||||||||
| Vehicles | Explorer G62-2733K |
||||||||
| Itinerary |
|
||||||||
| Bounds |
|
| Organization |
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
|
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Principal investigators | Jessica R Lacy | ||||||||
| Crew members |
|
||||||||
| Information specialist(s) |
|
| Data category: | Location-Elevation, Sonar |
|---|---|
| Data type: | Navigation, Interferometric, Single Beam |
| Equipment | Usage description | Data types | Datasets |
|---|---|---|---|
| POS MV | Navigation | (no data reported) | |
| Waverunners | Navigation, Single Beam | 1 | |
| SWATH plus-M | Interferometric | 4 |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| Acoustic-backscatter data collected in the Cache Slough Complex and the Sacramento River Deep Water Ship Channel | SWATH plus-M | Acoustic-backscatter data were collected during a 2018 swath survey in the Cache Slough Complex and the Sacramento River Deep Water Ship Channel, California. Data were collected by the U.S. Geological Survey (USGS) during USGS field activity 2018-684-FA, using interferometric bathymetric sidescan sonar systems mounded to the USGS R/V San Lorenzo and the R/V Kelpfly. The backscatter data are provided as GeoTIFF images. | Peter Dartnell |
| Digital elevation model (DEM) of the Sacramento River Deep Water Ship Channel (DWSC) | SWATH plus-M | This metadata describes a digital elevation model (DEM) created from bathymetric and topographic data collected between 2017 and 2019 in the Sacramento River Deep Water Ship Channel (DWSC), 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) and 2017 USGS Sacramento Delta Lidar, to produce a seamless digital elevation model of the DWSC at a grid resolution of 1 m. | Theresa Fregoso |
| Swath bathymetry data collected in the Cache Slough Complex and the Sacramento River Deep Water Ship Channel | SWATH plus-M | Bathymetry data were collected during a 2018 swath survey in the Cache Slough Complex and the Sacramento River Deep Water Ship Channel, California. Data were collected by the U.S. Geological Survey (USGS) during USGS field activity 2018-684-FA, using interferometric bathymetric sidescan sonar systems mounded to the USGS R/V San Lorenzo and the R/V Kelpfly. The bathymetry data and a shaded-relief version are provided as GeoTIFF images. | Peter Dartnell |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| 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 | SWATH plus-M | 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 |
