Citation:
Citation_Information:
Originator: Theresa A. Fregoso
Originator: Amy C. Foxgrover
Originator: Bruce E. Jaffe
Publication_Date: 20230405
Title:
Bathymetric change of Central San Francisco Bay, California: 1971 to 2020
Geospatial_Data_Presentation_Form: Raster Digital Data Set
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9Y5PEV0
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/P9Y5PEV0
Online_Linkage:
Larger_Work_Citation:
Citation_Information:
Originator: Theresa A. Fregoso
Originator: Bruce E. Jaffe
Originator: Amy C. Foxgrover
Publication_Date: 2023
Title:
Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9Y5PEV0
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/P9Y5PEV0
Description:
Abstract:
This 25-m-resolution surface presents bathymetric change of Central San Francisco Bay, California (hereafter referred to as Central Bay). This surface compares a 1-m-resolution digital elevation model (DEM) of the central portion of San Francisco Bay (Fregoso and others, 2021), comprised of bathymetry data in the Central Bay region from the time period referred to as the 2010s because the majority of the surveys were in that decade, to a 25-m-resolution DEM of Central Bay comprised of historic surveys from 1971 to 1984 (referred to as the 1980s because the majority of the surveys were in that decade). The creation of this change surface involved the resampling of the 1-m-resolution 2010s DEM to match the 25-m-resolution 1980s Central Bay DEM. Adjusting the 1990 surface to account for the modern tidal cycle while also applying a bias correction in attempts to account for interpolation uncertainties.
Purpose:
These data are part of a sediment change analysis project of San Francisco Bay to understand current patterns of sediment gains and loss in efforts to help develop a sediment budget. 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 changes in elevations between the two time periods. These data are not intended to be used for navigational purposes.
Supplemental_Information:
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: 1971
Ending_Date: 2020
Currentness_Reference: ground condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.516883
East_Bounding_Coordinate: -122.196019
North_Bounding_Coordinate: 37.989176
South_Bounding_Coordinate: 37.722243
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: digital elevation models
Theme_Keyword: coastal processes
Theme_Keyword: bathymetry
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
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:632b683ed34e900e86c509db
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: San Francisco Bay
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Central Bay
Access_Constraints: none
Use_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.
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:
Map showing bathymetric change of Central Bay, from 1971 to 2020, in meters.
Browse_Graphic_File_Type: JPEG
Native_Data_Set_Environment: Microsoft Version 6.2 (Build 9200); Esri ArcGIS 10.8.1.14362
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: Environmental Systems Research Institute, Inc (ESRI)
Publication_Date: 2021
Title: Aggregate (Spatial Analyst)
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://doi.org/10.3133/ofr20081312
