High-resolution bathymetry data collected in 2010 in Skagit Bay, Washington

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Eric E. Grossman
Originator: Peter Dartnell
Originator: David P. Finlayson
Publication_Date: 2018
Title:

High-resolution bathymetry data collected in 2010 in Skagit Bay, Washington

Geospatial_Data_Presentation_Form: TIFF
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F7JM27VN

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/F7JM27VN
Online_Linkage:

https://www.sciencebase.gov/catalog/item/59b8711ee4b08b1644df60ae

Larger_Work_Citation:

Citation_Information:

Originator: Eric E. Grossman
Originator: Peter Dartnell
Originator: David P. Finlayson
Publication_Date: 2018
Title:

High-resolution bathymetry and acoustic-backscatter data collected in 2004, 2005, 2007, and 2010 in Skagit Bay, Washington

Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F7JM27VN

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/F7JM27VN
Online_Linkage:

https://www.sciencebase.gov/catalog/item/59b0579ae4b020cdf7d6e344

Description:

Abstract:

These metadata describe the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) 2010 bathymetry data collected in Skagit Bay Washington that is provided as a 1-m resolution TIFF image, as well as a 1-m resolution shaded-relief TIFF image. In 2004, 2005, 2007, and 2010 the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) collected bathymetry and acoustic backscatter data in Skagit Bay, Washington using an interferometric bathymetric sidescan sonar system mounded to the USGS R/V Parke Snavely and the USGS R/V Karluk. The research was conducted in coordination with the Swinomish Indian Tribal Community, Skagit River System Cooperative, Skagit Watershed Council, Puget Sound Nearshore Ecosystem Restoration Project, and U.S. Army Corps of Engineers to characterize estuarine habitats and processes, including the sediment budget of the Skagit River and the influence of river-delta channelization on sediment transport. Information quantifying the distribution of habitats and extent that sediment transport influences habitats and the morphology of the delta is useful for planning for salmon recovery, agricultural resilience, flood risk protection, and coastal change associated with sea-level rise.

Purpose:

These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software to identify bathymetric features. These data are not intended to be used for navigation.

Supplemental_Information:

Additional information about the field activities from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=K104PS https://cmgds.marine.usgs.gov/fan_info.php?fan=K205PS https://cmgds.marine.usgs.gov/fan_info.php?fan=K107PS https://cmgds.marine.usgs.gov/fan_info.php?fan=S410PS
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: 2010
Ending_Date: 2010

Currentness_Reference: ground condition at time data were collected.

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -122.692
East_Bounding_Coordinate: -122.469
North_Bounding_Coordinate: 48.417
South_Bounding_Coordinate: 48.246

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:59b8711ee4b08b1644df60ae

Theme:

Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD)
Theme_Keyword: Bathymetry
Theme_Keyword: Seafloor Topography

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: environment
Theme_Keyword: imageryBaseMapsEarthCover

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Bathymetry
Theme_Keyword: sea-floor acoustic reflectivity
Theme_Keyword: Geology

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: seabed

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Pacific Coastal and Marine Science Center
Theme_Keyword: PCMSC

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: State of Washington
Place_Keyword: Puget Sound
Place_Keyword: Strait of Juan de Fuca
Place_Keyword: Skagit 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 originators of the dataset and in products derived from these data. This information is not intended for navigation purposes.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Peter Dartnell
Contact_Organization:

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Contact_Position: Physical Scientist
Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-460-7415
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: pdartnell@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

https://www.sciencebase.gov/catalog/file/get/59b8711ee4b08b1644df60ae?name=SkagitBay_2010_QV.jpg&allowOpen=true

Browse_Graphic_File_Description: quick view image of 2010 Skagit Bay bathymetry data
Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Caris HIPS and SIPS (ver. 9) and ArcMap (ver. 10.3.1) on a Windows 7 computer.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: Not applicable for raster data.

Logical_Consistency_Report: No formal logical accuracy tests were conducted.
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:

Estimated to be no less than 1 m, owing to water depth and total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Estimated to be no less than 0.5% water depth, owing to water depth and total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations.

Lineage:

Process_Step:

Process_Description:

In 2010 the USGS, PCMSC mapped a portion of Skagit Bay within Puget Sound, Washington. A 234-kHz interferometric bathymetric sidescan sonar system was pole-mounted to the USGS, PCMSC R/V Parke Snavely. In 2017 the USGS, PCMSC downloaded the 2010 bathymetry data as a BAG file in UTM-10, WGS84 coordinates from the USGS archives and imported into a Geographic Information System (ESRI, ArcMap) and converted to a grid. The grid was converted to an ASCII XYZ file using Fledermaus software. The XYZ file coordinates and depths were transformed to NAD83 coordinates relative to NAVD88 depths using V-Datum software (version 3.7). The new XYZ file was gridded into a 1-m surface using Fledermaus software, exported as an ASCIIRaster file, imported into a GIS and then export as a TIFF file in UTM, zone 10 NAD83 coordinates relative to NAVD88. Also, a shaded relief bathymetry grid was generated from the bathymetry data using the ESRI, ArcMap 'hillshade' tool. The grid was then exported as a TIFF file in UTM zone 10, NAD-83 coordinates. The image does not contain depth/elevation information.

Process_Date: 2017

Process_Step:

Process_Description:

Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.

Process_Date: 20201019
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:

Raster_Object_Type: Grid Cell
Row_Count: 17935
Column_Count: 15289
Vertical_Count: 1

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:

UTM_Zone_Number: 10
Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -123.00000
Latitude_of_Projection_Origin: 0.00000
False_Easting: 500000.0
False_Northing: 0.00

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:

Abscissa_Resolution: 1.0
Ordinate_Resolution: 1.0

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: NAD83
Ellipsoid_Name: GRS80
Semi-major_Axis: 6378137.00
Denominator_of_Flattening_Ratio: 298.257223563

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Datum 1983
Altitude_Resolution: 0.1
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: value
Entity_Type_Definition: depth in meters relative to NAVD88
Entity_Type_Definition_Source: Producer defined

Overview_Description:

Entity_and_Attribute_Overview:

The complete 1-m resolution 2010 Skagit Bay bathymetry grid was originally archived as a TIFF image with the following attributes.

Cell size = 1.0
Number of rows = 17935
Number of columns = 15289

Data type = floating point

Boundary
Xmin = 523433
Xmax = 538722
Ymin = 5344166
Ymax = 5362101

Statistics
Minimum value = -104.75
Maximum value = 0.36
Mean = -21.50
Standard deviation = 16.25

Coordinate system description
Projection  UTM
Zone  10
Datum  NAD83
Vertical Reference NAVD88
Units  meter

Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey - ScienceBase

Contact_Address:

Address_Type: Mailing and Physical
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225

Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov

Resource_Description:

These data are available in TIFF format (skagitbay_2010_bathymetry_1m_utm10_nad83_navd88.tif) contained in a single zip file (skagitbay_2010_bathymetry_1m_utm10_nad83_navd88.zip), which includes a tif world file (.tfw) and CSDGM FGDC-compliant metadata. A shaded-relief version (skagitbay_2010_shadedrelief_1m_utm10_nad83.tif) is contained in a second zip file (skagitbay_2010_shadedrelief_1m_utm10_nad83.zip), which also includes a tif world file (.tfw) and CSDGM 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: TIFF
Format_Version_Number: ArcMap (version 10.3.1)
Format_Information_Content:

The .zip files contains the TIFF (.tif), the projection file (.tfw), and the XML (.xml) version of the metadata.

File_Decompression_Technique: WinZip
Transfer_Size: 23.5

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/59b8711ee4b08b1644df60ae?name=skagitbay_2010_bathymetry_1m_utm10_nad83_navd88.zip

Network_Resource_Name: https://doi.org/10.5066/F7JM27VN

Access_Instructions: Data can be downloaded via the Internet

Digital_Form:

Digital_Transfer_Information:

Format_Name: TIFF
Format_Version_Number: ArcMap (version 10.3.1)
Format_Information_Content:

The .zip files contains the TIFF (.tif), the projection file (.tfw), and the XML (.xml) version of the metadata.

File_Decompression_Technique: WinZip
Transfer_Size: 12.1

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/59b8711ee4b08b1644df60ae?name=skagitbay_2010_shadedrelief_1m_utm10_nad83.zip

Network_Resource_Name: https://doi.org/10.5066/F7JM27VN

Access_Instructions: Data can be downloaded via the Internet

Fees: None.

Technical_Prerequisites:

The downloadable data file has been compressed with the "zip" command and can be unzipped with Winzip (or other tool) on Windows systems. To utilize these data, the user must have software capable of uncompressing the WinZip file and importing and viewing a TIFF file.

Metadata_Reference_Information:

Metadata_Date: 20201019
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Peter Dartnell
Contact_Organization:

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Contact_Position: Physical Scientist
Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: United States of America

Contact_Voice_Telephone: 831-460-7415
Contact_Electronic_Mail_Address: pdartnell@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_F7JM27VN/skagitbay_2010_bathymetry_1m_metadata.html>