Topographic measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015, using backpack GPS

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Alexander G. Snyder
Originator: Andrew W. Stevens
Originator: Emily Carlson
Originator: Jessica R. Lacy
Publication_Date: 2016
Title:
Topographic measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015, using backpack GPS
Geospatial_Data_Presentation_Form: comma-delimited text and shapefile
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7RX9954
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/F7RX9954
Online_Linkage:
https://www.sciencebase.gov/catalog/item/56671ef1e4b06a3ea36c8bf5
Larger_Work_Citation:
Citation_Information:
Originator: Alexander G. Snyder
Originator: Andrew W. Stevens
Originator: Emily Carlson
Originator: Jessica R. Lacy
Publication_Date: 2016
Title:
Digital elevation model of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7RX9954
Publication_Information:
Publication_Place: Santa Cruz, CA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7RX9954
Description:
Abstract:
Topographic data were collected by the U.S. Geological Survey (USGS) in 2015 for Little Holland Tract in the Sacramento-San Joaquin River Delta, California. The data were collected on foot using a global positioning system (GPS) backpack platform that consisted of survey-grade Trimble R10 and R7 global navigation satellite system (GNSS) receivers with Zephyr 2 antennas. Orthometric elevations relative to NAVD88 were computed using the National Geodetic Survey Geoid12a, and the final data were projected in Cartesian coordinates using the UTM Zone 10 North (meters) (NAD83[2011]) coordinate system. The mean estimated vertical uncertainty of the 2015 USGS GPS backpack survey is 3.5 cm. 
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 topographic and shallow-water bathymetric features.
Supplemental_Information:
Additional information about the field activities from which these data were derived are available online at: http://cmgds.marine.usgs.gov/fan_info.php?fan=2015-642-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:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 20150522
Single_Date/Time:
Calendar_Date: 20150619
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -121.666347272
East_Bounding_Coordinate: -121.64879356
North_Bounding_Coordinate: 38.350117093
South_Bounding_Coordinate: 38.310742125
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:56671ef1e4b06a3ea36c8bf5
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: GPS measurement
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: Global Positioning System (GPS) observations
Theme:
Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD)
Theme_Keyword: GPS (Global Positioning System)
Theme:
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Bathymetry and Elevation
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Sacramento-San Joaquin Delta
Place_Keyword: Little Holland Tract
Place_Keyword: Yolo County
Place_Keyword: Solano County
Place_Keyword: Liberty Island
Place_Keyword: Sacramento River Deep Water Ship Channel
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 navigational 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: 95060-5792
Country: US
Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov
Native_Data_Set_Environment:
Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2 (Build 3552) Service Pack N/A (Build N/A)
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Accuracy estimates were based on horizontal and vertical precision values calculated in Trimble Business Center, but no comparisons to "true" values were conducted.
Logical_Consistency_Report:
Data falls within expected ranges, efforts were made during digital elevation modeling to best represent reality.
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:
Accuracy estimates were based on horizontal precision values calculated in Trimble Business Center, but no comparisons to "true" values were conducted. Horizontal precision values for each point are included in the dataset, but overall the minimum, maximum, mean and standard deviation precision calculations were 0.009, 0.103, 0.0239, and 0.006 meters, respectively.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Accuracy estimates were based on vertical precision values calculated in Trimble Business Center, but no comparisons to "true" values were conducted. Vertical precision values for each point are included in the dataset, but overall the minimum, maximum, mean and standard deviation precision calculations were 0.194, 0.014, 0.0351, and 0.011 meters, respectively.
Lineage:
Process_Step:
Process_Description:
Established base station and collected data using GPS Backpack survey method with survey grade Trimble R10 and R7 GNSS receiver mounted backpacks. Survey design involved 4 people equipped with backpacks walking predesigned transect lines and outlining the edge of water, where accessible. A small area of the northern-most, low-lying topography was also measured using this method, although tall brush made most areas inaccessible or impractical.
Process_Date: 20150522
Process_Step:
Process_Description:
Collected data using GPS Backpack survey method with survey grade Trimble R10 and R7 GNSS receivers mounted backpacks. Survey design involved 4 people equipped with backpacks walking predesigned transect lines and outlining the edge of water, where accessible. A small area of the northern-most, low-lying topography was also measured using this method, although tall brush made most areas inaccessible or impractical.
Process_Date: 20150619
Process_Step:
Process_Description:
Backpack survey data were post-processed using Trimble Business Center (version 3.21) referenced to the static base station, set up on a temporary benchmark established for this survey.
Process_Date: 20150619
Process_Step:
Process_Description: All data were compiled into a single shapefile.
Process_Date: 20151117
Process_Step:
Process_Description:
Edits were made as needed to bring the metadata up to current PCMSC standards including standardizing doi# links, correcting typos, adding disclaimers, and refining keywords. Point of Contact and Metadata Contact information sections were changed to static PCMSC contact information. No data were changed. Users are advised to compare the metadata date of this file to any similar file to ensure they are using the most recent version.
Process_Date: 2020710
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Susan A Cochran
Contact_Organization:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Contact_Address:
Address_Type: mailing and physical
Address: 2885 Mission St.
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: United States
Contact_Voice_Telephone: 831-460-7545
Contact_Electronic_Mail_Address: scochran@usgs.gov
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: Point
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 57264
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: -123.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.6096
Ordinate_Resolution: 0.6096
Planar_Distance_Units: Meter
Geodetic_Model:
Horizontal_Datum_Name: D_North_American_1983
Ellipsoid_Name: GRS_1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Attribute Table
Entity_Type_Definition:
Table containing attribute information associated with the data set.
Entity_Type_Definition_Source: Producer defined
Attribute:
Attribute_Label: Date_Time
Attribute_Definition:
Date and time that data point was collected in Pacific Standard Time, yyyy-mm-dd hh:mm:ss.sss.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:
Unrepresentable_Domain: Unknown
Attribute:
Attribute_Label: Longitude
Attribute_Definition: Longitude coordinate of data point (NAD83 (2011)).
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 121.64887
Range_Domain_Maximum: 121.66628
Attribute_Units_of_Measure: Decimal Degrees
Attribute:
Attribute_Label: Latitude
Attribute_Definition: Latitude coordinate of data point (NAD83 (2011)).
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 38.31092
Range_Domain_Maximum: 38.35001
Attribute_Units_of_Measure: Decimal Degrees
Attribute:
Attribute_Label: Easting_m
Attribute_Definition:
Easting projected coordinate of data point - NAD83(2011), UTM Zone 10.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 616597.494
Range_Domain_Maximum: 618068.94
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Northing_m
Attribute_Definition:
Easting projected coordinate of data point - NAD83(2011), UTM Zone 10.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4241156.111
Range_Domain_Maximum: 4245504.909
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Ellip_Ht_m
Attribute_Definition: Height of data point with reference to the ellipsoid.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -32.203
Range_Domain_Maximum: -27.859
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Ortho_Ht_m
Attribute_Definition: Elevation with reference to Geoid 12A.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.434
Range_Domain_Maximum: 3.858
Attribute_Units_of_Measure: Meters
Attribute:
Attribute_Label: Hor_Acc_m
Attribute_Definition:
Estimate of horizontal accuracy based on 'H. Precision' measurements computer in Trimble Business Center.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0.103
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Vert_Acc_m
Attribute_Definition:
Estimate of vertical accuracy based on 'V. Precision' measurements computer in Trimble Business Center.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0.194
Attribute_Units_of_Measure: Meters
Overview_Description:
Entity_and_Attribute_Overview:
The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set.
Entity_and_Attribute_Detail_Citation:
The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - Science Base
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:
Topography data are available as both a comma-delimited text file and a shapefile, and include the associated 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. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile and comma-delimited text
Transfer_Size: 4.4
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://www.sciencebase.gov/catalog/file/get/56671ef1e4b06a3ea36c8bf5
Digital_Form:
Digital_Transfer_Information:
Format_Name: shapefile
Transfer_Size: 2.3
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://www.sciencebase.gov/catalog/item/56671ef1e4b06a3ea36c8bf5
Network_Resource_Name: https://doi.org/10.5066/F7RX9954
Access_Instructions:
Data can be downloaded using the Network Resource links. The first link will begin a direct download of the data. The second link points to the landing page for the entire data release.
Fees: None.
Metadata_Reference_Information:
Metadata_Date: 20201019
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: 95060-5792
Country: US
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
This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_F7RX9954/LHT15_BackpackGPS_FGDC.html>
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