| Identifier | 2019-614-FA | ||||||||
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| Purpose | collect bathymetry | ||||||||
| Location | Alviso Slough, Coyote Creek, Guadalupe Slough, South San Francisco Bay, California | ||||||||
| Summary | Collected bathymetry with Parke Snavely in Alviso Slough over two days. Also collected bathymetry with the KelpFly over two days, including in Guadalupe Slough. | ||||||||
| Info derived | bathymetry | ||||||||
| Comments | Also potentially using the KelpFly to map upstream portions of Guadalupe Slough | ||||||||
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| Vehicles | Mitsubishi Outlander G61-0912R |
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| Organization |
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
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| Principal investigators | Bruce E Jaffe | ||||||
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| Data category: | Location-Elevation, Sonar |
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| Data type: | Navigation, Interferometric |
| Equipment | Usage description | Data types | Datasets |
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| POS MV | Navigation | (no data reported) | |
| SWATH plus-M | Interferometric | 7 |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| April 2019 bathymetry (MLLW) of Coyote Creek and Alviso Slough, South San Francisco Bay, California | SWATH plus-M | 1-m resolution bathymetry collected in Coyote Creek and Alviso Slough in April 2019. Projection = UTM, zone 10 in meters, Horizontal Datum = NAD83 (CORS96), Vertical Datum = MLLW, all units in meters. The surveys extend east from Calaveras Point along Coyote Creek to the railroad bridge, along Alviso Slough to the town of Alviso (just over 7 km), and along the 9.8 km of Guadalupe Slough closest to the San Francisco Bay, California. | Amy Foxgrover |
| April 2019 bathymetry (NAVD88) of Coyote Creek and Alviso Slough, South San Francisco Bay, California | SWATH plus-M | 1-m resolution bathymetry collected in Coyote Creek and Alviso Slough in April 2019. Projection = UTM, zone 10 in meters, Horizontal Datum = NAD83 (CORS96), Vertical Datum = NAVD88, all units in meters. The surveys extend east from Calaveras Point along Coyote Creek to the railroad bridge, along Alviso Slough to the town of Alviso (just over 7 km), and along the 9.8 km of Guadalupe Slough closest to the San Francisco Bay, California. | Amy Foxgrover |
| April 2019 bathymetry (WGS84) of Coyote Creek and Alviso Slough, South San Francisco Bay, California | SWATH plus-M | 1-m resolution bathymetry collected in Coyote Creek and Alviso Slough in April 2019. Projection = UTM, zone 10 in meters, Horizontal Datum = WGS84(G1150), Elevations relative to the WGS84 Ellipsoid, all units in meters. The surveys extend east from Calaveras Point along Coyote Creek to the railroad bridge, along Alviso Slough to the town of Alviso (just over 7 km), and along the 9.8 km of Guadalupe Slough closest to the San Francisco Bay, California. | Amy Foxgrover |
| Bathymetry | SWATH plus-M | Bathymetric survey data were collected in March 2019 just south of Dumbarton Bridge in south San Francisco Bay, California. The bathymetry is provided as a 1-m resolution raster in geoTIFF format, referenced to the vertical datum of mean lower low water (MLLW). | Amy Foxgrover |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| Footprints and producers of source data used to create southern portion of the high-resolution (1 m) San Francisco Bay, California, digital elevation model (DEM) | SWATH plus-M | Polygon shapefile showing the footprint boundaries, source agency origins, and resolutions of compiled bathymetric digital elevation models (DEMs) used to construct a continuous, high-resolution DEM of the southern portion of San Francisco Bay. | Theresa Fregoso |
| Digital elevation model (DEM) of south San Francisco Bay, California, created using bathymetry data collected between 2005 and 2020 (MLLW) | SWATH plus-M | A 1-m resolution, continuous surface, bathymetric digital elevation model (DEM) of the southern portion of San Francisco Bay, was constructed from bathymetric surveys collected from 2005 to 2020. In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection of bathymetric surveys of large portions of San Francisco Bay. A total of 93 surveys were collected using a combination of multibeam and interferometric side-scan sonar systems. Of those 93 surveys, 75 consist of swaths of data ranging from 18- to just over 100-meters wide. These swaths were separated by data gaps ranging from 10- to just over 300-meters wide. The no-data areas required interpolation to create a continuous surface. The OPC surveys were combined with additional datasets collected by the United States Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA), NOAA National Ocean Service (NOS), and the United States Army Corps of Engineers (USACE) to create a continuous, high-resolution digital elevation model (DEM). The creation of this DEM refines techniques developed by the USGS to create DEMs from historic bathymetric data, and allow for the creation of a modern-day bathymetric surface that can be compared to earlier surveys to delineate regions of sediment erosion and deposition. | Theresa Fregoso |
| Digital elevation model (DEM) of south San Francisco Bay, California, created using bathymetry data collected between 2005 and 2020 (NAVD88) | SWATH plus-M | A 1-m resolution, continuous surface, bathymetric digital elevation model (DEM) of the southern portion of San Francisco Bay, was constructed from bathymetric surveys collected from 2005 to 2020. In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection of bathymetric surveys of large portions of San Francisco Bay. A total of 93 surveys were collected using a combination of multibeam and interferometric side-scan sonar systems. Of those 93 surveys, 75 consist of swaths of data ranging from 18- to just over 100-meters wide. These swaths were separated by data gaps ranging from 10- to just over 300-meters wide. The no-data areas required interpolation to create a continuous surface. The OPC surveys were combined with additional data sets collected by the United States Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA), NOAA National Ocean Service (NOS), and the United States Army Corps of Engineers (USACE) to create a continuous, high-resolution digital elevation model (DEM). The creation of this DEM refines techniques developed by the USGS to create DEMs from historic bathymetric data, and allow for the creation of a modern-day bathymetric surface that can be compared to earlier surveys to delineate regions of sediment erosion and deposition. | Theresa Fregoso |
