Metadata: Identification_Information: Citation: Citation_Information: Originator: Samantha C. McGill Originator: Andrew W. Stevens Publication_Date: 20240806 Title: Topographic data from two marshes and adjacent shallows in Northern San Francisco Bay, California, 2022-2023 Geospatial_Data_Presentation_Form: comma-delimited text Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P1XZFGCX Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P1XZFGCX Larger_Work_Citation: Citation_Information: Originator: Samantha C. McGill Originator: Jessica R. Lacy Originator: Joanne C.T. Ferreira Originator: Daniel J. Nowacki Originator: Andrew W. Stevens Originator: Angela C. Tan Publication_Date: 2024 Title: Hydrodynamic and sediment transport data from two marshes and adjacent shallows in Northern San Francisco Bay, California 2022-2023 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P1XZFGCX Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested Citation: McGill, S.C., Lacy, J.R., Ferreira, J.C.T., Nowacki, D.J., Stevens, A.W., and Tan, A.C., 2024, Hydrodynamic and sediment transport data from two marshes and adjacent shallows in Northern San Francisco Bay, California 2022-2023: U.S. Geological Survey data release, https://doi.org/10.5066/P1XZFGCX. Online_Linkage: https://doi.org/10.5066/P1XZFGCX Description: Abstract: Topographic data were collected in the Corte Madera Marsh, San Pablo National Wildlife Refuge Marsh, and at the time-series stations in the shallows adjacent to each marsh in Northern San Francisco Bay between April 2022 and September 2023. The topographic data were acquired using global satellite navigation system receivers that were either mounted on backpacks and hiked over the marsh surface or mounted on a survey rod held shipside against a deployed platform or on the water surface. Sometimes an additional staff was used in conjunction with the shipside survey rod to reach the platform, which we refer to as an integrated collection method. Purpose: Topographic data were collected as part of a study to produce information useful for prioritizing marsh restoration sites, assessing restoration actions, and understanding mechanisms of sediment delivery to marshes. These data are intended for researchers, students, policy makers, and the general public. Supplemental_Information: Information about the data collection field activities can be found at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-619-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2023-603-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20220412 Ending_Date: 20230918 Currentness_Reference: ground condition at time data were collected Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.5056495 East_Bounding_Coordinate: -122.472715 North_Bounding_Coordinate: 38.1186296 South_Bounding_Coordinate: 37.9285518 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:d0410af8-8e05-43a1-81bd-7e484344cce4 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: elevation Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Bathymetry and Elevation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: topography Theme_Keyword: GPS measurement Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: Global Positioning System (GPS) observations Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: San Francisco Bay Place_Keyword: Marin County Place_Keyword: Sonoma County Place_Keyword: State of California Place_Keyword: San Pablo Bay Place: Place_Keyword_Thesaurus: none Place_Keyword: Corte Madera marsh Place_Keyword: San Pablo Bay National Wildlife Refuge Place_Keyword: Corte Madera Bay Access_Constraints: No access constraints 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. 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: Marsh_topo_pictures.png Browse_Graphic_File_Description: Images of both Corte Madera Marsh and San Pablo Marsh being surveyed. Browse_Graphic_File_Type: PNG Cross_Reference: Citation_Information: Originator: Paul H. Rydlund Originator: Brenda K. Densmore Publication_Date: 2012 Title: Methods of practice and guidelines for using survey-grade global navigation satellite systems (GNSS) to establish vertical datum in the United States Geological Survey Other_Citation_Details: Rydlund, P.H., Jr., and Densmore, B.K., 2012, Methods of practice and guidelines for using survey-grade global navigation satellite systems (GNSS) to establish vertical datum in the United States Geological Survey: U.S. Geological Survey Techniques and Methods, book 11, chap. D1, 102 p. with appendixes. Online_Linkage: https://doi.org/10.3133/tm11D1 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: No formal attribute accuracy tests were conducted. Logical_Consistency_Report: All data falls within expected ranges. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Survey-grade positioning for the topographic data were achieved with global navigation satellite system (GNSS) receivers operating in real time kinematic mode with differential corrections from a single GNSS base station placed on a benchmark with established coordinates relative to the North American Datum of 1983 (2011 realization). The position of the GNSS base station was established using two static occupations conforming to level 1 quality as defined by Rydlund and others (2012). Uncertainty in the horizontal positions of the topographic data relative to the GNSS base station were estimated during acquisition using Trimble Access software and provided for each measurement in the dataset. The estimated uncertainty in horizontal positions at the 95 percent confidence interval ranged between 0.001 and 0.114 m with a mean of 0.023 m. Uncertainty in the horizontal positions associated with variable posture of the surveyor during data collection is unknown. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Uncertainty in the elevations above the reference ellipsoid of relative to the GNSS base station were estimated during acquisition using Trimble Access software or via post processing using Trimble Business Center software. The estimated uncertainty in vertical positions at the 95 percent confidence interval ranged between 0.015 and 0.089 m with a mean of 0.043 m. Uncertainty in the horizontal positions associated with variable posture of the surveyor during data collection is unknown. Lineage: Process_Step: Process_Description: Survey grade topographic data were collected with GNSS receivers mounted on either, survey rods, backpacks, or an integrated method which used a survey rod placed above a platform or object whose elevation above bed was known. Prior to data collection, vertical distances between the GNSS antennas and the ground were measured using a tape measure. Hand-held data collectors running Trimble Access were used to log raw data and display navigational information allowing surveyors to follow planned survey lines when appropriate. The positions of the topographic platforms collected in RTK mode were retained, and Trimble Business Center software was used to apply differential corrections to topographic data collected in autonomous mode when VHF communication with the base station failed. Orthometric elevations relative to the NAVD88 vertical datum were computed for all survey platforms, using National Geodetic Survey Geoid18 offsets. Orthometric heights in the North American Vertical Datum 1988 vertical datum were computed using National Geodetic Survey Geoid18 offsets. Process_Date: 20230918 Process_Step: Process_Description: Raw topographic data were imported into Trimble Business Center for inspection. All available data were exported in comma-delimited text format for distribution. Process_Date: 20240515 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Samantha C. McGill Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical Address: 2885 Mission St. City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7543 Contact_Electronic_Mail_Address: scmcgill@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 9714 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0000001 Longitude_Resolution: 0.0000001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS_1980 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257222101 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Resolution: 0.001 Altitude_Distance_Units: meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Attribute Table Entity_Type_Definition: Table containing attribute information associated with the dataset Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: FAN ID Attribute_Definition: U.S. Geological Survey field activity number (FAN). Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2022-619-FA Enumerated_Domain_Value_Definition: Samples collected during USGS field activity 2022-619-FA. Additional information about this field activity can be found at https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-619-FA. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2023-603-FA Enumerated_Domain_Value_Definition: Samples collected during USGS field activity 2023-603-FA. Additional information about this field activity can be found at https://cmgds.marine.usgs.gov/fan_info.php?fan=2023-603-FA. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute: Attribute_Label: datetime_utc Attribute_Definition: The date and time of data collection in Coordinated Universal Time (UTC) Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 04/12/2022 17:46:04 Range_Domain_Maximum: 9/18/2023 17:56:21 Attribute_Units_of_Measure: date and time in mm/dd/yyyy HH:MM:SS format Attribute: Attribute_Label: longitude Attribute_Definition: Longitude coordinate of data point relative to the North American Datum of 1983 Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -122.5056495 Range_Domain_Maximum: -122.4727150 Attribute_Units_of_Measure: Decimal degrees Attribute: Attribute_Label: latitude Attribute_Definition: Latitude coordinate of data point relative to the North American Datum of 1983 Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 37.9285518 Range_Domain_Maximum: 38.1186296 Attribute_Units_of_Measure: Decimal degrees Attribute: Attribute_Label: easting Attribute_Definition: East coordinate of data point relative to the North American Datum of 1983, projected in the Universal Transverse Mercator(UTM) Zone 10 North, meters, coordinate system Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 543443.594 Range_Domain_Maximum: 4218411.445 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: northing Attribute_Definition: North coordinate of data point relative to the North American Datum of 1983, projected in the Universal Transverse Mercator (UTM) Zone 10 North, meters, coordinate system Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 543457.924 Range_Domain_Maximum: 4219107.584 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: ellipsoid_ht Attribute_Definition: Height in meters of data point with reference to the reference ellipsoid Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -33.538 Range_Domain_Maximum: -29.093 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: ortho_ht Attribute_Definition: Height in meters of data point with reference to the North American Vertical Datum of 1988 computed using National Geodetic Survey Geoid18 offsets. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1.223 Range_Domain_Maximum: 2.928 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: h_precision Attribute_Definition: Precision of the horizontal coordinate (95 percent confidence interval) estimated by the data acquisition software. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.010 Range_Domain_Maximum: 0.114 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: v_precision Attribute_Definition: Precision of the vertical coordinate (95 percent confidence interval) estimated by the data acquisition software. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.015 Range_Domain_Maximum: 0.089 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: feature_code Attribute_Definition: Relevant information regarding the location surveyed, may give the name of the location or transect or a brief descriptor of the observed location. "NA" indicates that no additional information was noted. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: text to describe sample location or name of station Attribute: Attribute_Label: method Attribute_Definition: Method of sample collection Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: backpack Enumerated_Domain_Value_Definition: Global satellite navigation system receiver was mounted onto backpack. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: survey rod Enumerated_Domain_Value_Definition: Global satellite navigation system receiver was mounted onto survey rod Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: integrated Enumerated_Domain_Value_Definition: Global satellite navigation system receiver was mounted onto survey rod and used in conjunction with an additional reference object Enumerated_Domain_Value_Definition_Source: Producer defined Overview_Description: Entity_and_Attribute_Overview: The first line of the csv file is a header line Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - CMGDS Contact_Address: Address_Type: mailing and physical Address: 2885 Mission St. City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Resource_Description: Topographic data are available as comma-delimited text files (CorteMadera_Marsh_Topo.csv, SanPablo_Marsh_Topo.csv, and TimeSeriesSites_Topo.csv), along with associated FGDC-compliant metadata. Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text Format_Version_Number: Trimble Business Center Version 5.60 Format_Information_Content: Comma-separated text files, ranging in size from 5 to 965 KB File_Decompression_Technique: No compression applied Transfer_Size: 1.0567 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P1XZFGCX Access_Instructions: Data can be downloaded using the Network_Resource_Name link then scrolling down to the Location-Elevation Data section. Fees: None. Metadata_Reference_Information: Metadata_Date: 20240806 Metadata_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 Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998