Citation:
Citation_Information:
Originator: Theresa A. Fregoso
Originator: Bruce E. Jaffe
Originator: Amy C. Foxgrover
Publication_Date: 20200117
Title:
Digital elevation model (DEM) of northern San Francisco Bay, California, created using bathymetry data collected between 1999 and 2016 (MLLW)
Geospatial_Data_Presentation_Form: Raster Digital Data Set
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9TJTS8M
Publication_Information:
Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA
Publisher: U.S. Geological Survey
Online_Linkage:
Online_Linkage: https://doi.org/10.5066/P9TJTS8M
Larger_Work_Citation:
Citation_Information:
Originator: Theresa A. Fregoso
Originator: Bruce E. Jaffe
Originator: Amy C. Foxgrover
Publication_Date: 2020
Title:
High-resolution (1 m) digital elevation model (DEM) of San Francisco Bay, California, created using bathymetry data collected between 1999 and 2016
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9TJTS8M
Publication_Information:
Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/P9TJTS8M
Online_Linkage:
Description:
Abstract:
A 1-m resolution, continuous surface, bathymetric digital elevation model (DEM) of the northern portion of San Francisco Bay, which includes San Pablo Bay, Carquinez Strait, and portions of Suisun Bay, was constructed from bathymetric surveys collected from 1999 to 2016.
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’s 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.
Purpose:
These data were compiled using new techniques to create a high-resolution DEM of the northern portion of San Francisco Bay, which will be used to document and assess changes in seafloor morphology. These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems (GIS) or other software to identify elevations. These data are not intended to be used for navigational purposes.
Supplemental_Information:
Additional information about the USGS field activity from which some of these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2015-633-FA. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in Esri format, this metadata file may include some Esri-specific terminology.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1999
Ending_Date: 2016
Currentness_Reference: ground condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.494946625
East_Bounding_Coordinate: -121.863425774
North_Bounding_Coordinate: 38.136493633
South_Bounding_Coordinate: 37.954045436
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5e16baa2e4b0ecf25c57fc3a
Theme:
Theme_Keyword_Thesaurus: The National Map Collection Thesaurus
Theme_Keyword: Digital Elevation Model (DEM) 1 meter
Theme_Keyword: Lidar Point Cloud (LPC)
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: digital elevation models
Theme_Keyword: bathymetry
Theme_Keyword: lidar
Theme_Keyword: topography
Theme_Keyword: geographic information systems
Theme_Keyword: geospatial datasets
Theme_Keyword: single-beam echo sounder
Theme_Keyword: multibeam sonar
Theme_Keyword: GPS measurement
Theme:
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Bathymetry and Elevation
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: geographic information systems (GIS)
Theme_Keyword: single-beam echo sounder
Theme_Keyword: multibeam echo sounder
Theme_Keyword: topographic mapping
Theme_Keyword: Global Positioning System (GPS) observations
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation
Theme_Keyword: inlandWaters
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: San Francisco Bay
Place_Keyword: San Pablo Bay
Place_Keyword: Suisun Bay
Place_Keyword: Carquinez Strait
Access_Constraints:
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes.
Use_Constraints:
None. Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Contact_Person: PCMSC Science Data Coordinator
Contact_Address:
Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
Browse_Graphic_File_Description:
Bathymetric map of the northern portion of San Francisco Bay (MLLW).
Browse_Graphic_File_Type: JPEG
Native_Data_Set_Environment:
Microsoft Version 6.2 (Build 9200); Esri ArcGIS 10.6.1 (Build 9270) Service Pack N/A (Build N/A)
Cross_Reference:
Cross_Reference:
Citation_Information:
Originator: Environmental Systems Research Institute, Inc (ESRI)
Publication_Date: 2015
Title: Topo to Raster help page
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: National Oceanic and Atmospheric Administration (NOAA)
Publication_Date: 2019
Title: Vertical Datum Transformation (VDatum)
Online_Linkage: https://vdatum.noaa.gov/welcome.html
Cross_Reference:
Citation_Information:
Originator: Theresa A. Fregoso
Originator: Amy C. Foxgrover
Originator: Bruce E. Jaffe
Publication_Date: 2008
Title:
Sediment Deposition, Erosion, and Bathymetric Change in Central San Francisco Bay: 1855-1979
Online_Linkage: https://pubs.er.usgs.gov/publication/ofr20081312