| Identifier | S0111SF | ||||||||
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| Alternate names | S-01-11-SF | ||||||||
| Purpose | Measure tidal flat and subtidal morphology. Collect baseline data set for change detection. | ||||||||
| Description | United States Geological Survey, Pacific Science Center. Chief Scientists: Bruce Jaffe, David Finlayson. Swath survey data (SWATHplus 234.5 kHz) of field activity S-01-11-SF in Dumbarton Bridge, San Francisco Bay, CA from 01/18/2011 to 01/21/2011 | ||||||||
| Location | CA | ||||||||
| Info derived | Bathymetry and Acoustic Backscatter | ||||||||
| Comments | This effort is part of a multi-disciplinary GD/BRD/WRD study entitled Effects of regional wetland restoration on mud flats of the South San Francisco Bay: avian ecology, food webs, and sediment supply . Other surveys included in this effort: S-16-08-SF, S-1-09-SF, S-3-09-SF, S-9-09-SF, S-1-10-SF, S-10-10-SF, S-17-10-SF. Staff information imported from InfoBank Bruce Jaffe David Finlayson Tom Reiss | ||||||||
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| Activity | Swath survey |
| Organization |
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
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| Principal investigators | David P FinlaysonBruce E Jaffe | ||||||
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| Data category: | Location-Elevation, Sonar |
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| Data type: | Navigation, Interferometric, Multibeam |
| Equipment | Usage description | Data types | Datasets |
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| GPS | Navigation | (no data reported) | |
| SWATHplus 234.5 kHz | Interferometric, Multibeam | 5 |
| Dataset name | Equipment | Description | Dataset contact |
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| Bathymetry | SWATHplus 234.5 kHz | Bathymetric survey data were collected in January 2011 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 |
| File list | SWATHplus 234.5 kHz | Amy Foxgrover |
| Dataset name | Equipment | Description | Dataset contact |
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| 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) | SWATHplus 234.5 kHz | 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) | SWATHplus 234.5 kHz | 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) | SWATHplus 234.5 kHz | 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 |
Foxgrover, A.C.; Jaffe, B.E.; and Fregoso, T.A., 2022, Bathymetric surveys collected near Dumbarton Bridge in south San Francisco Bay, California, 2008 to 2019: , https://doi.org/10.5066/P9BIB67S.
Fregoso, T.A.; Jaffe, B.E.; and Foxgrover, A.C., 2020, High-resolution (1 m) digital elevation model (DEM) of San Francisco Bay, California, created using bathymetry data collected between 1999 and 2020 (ver. 2.0, July 2021): , https://doi.org/10.5066/P9TJTS8M. (Abstract)
