Lagrangian ocean surface drifter deployments off the National Park of American Samoa, Tutuila, American Samoa, 2015

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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: Joshua B. Logan
Publication_Date: 2017
Title:

Lagrangian ocean surface drifter deployments off the National Park of American Samoa, Tutuila, American Samoa, 2015

Geospatial_Data_Presentation_Form: comma-delimited text
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F7RN362H

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/F7RN362H
Online_Linkage:

https://www.sciencebase.gov/catalog/file/get/58c9b834e4b0849ce97b4bd8?name=NPSADrifterCSVFiles_namedwithLCLStart.zip

Larger_Work_Citation:

Citation_Information:

Originator: Kurt J. Rosenberger
Originator: Curt D. Storlazzi
Publication_Date: 2017
Title:

Data from coastal circulation and water-column properties in the National Park of American Samoa, February-July 2015

Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F7RN362H

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/F7RN362H

Description:

Abstract:

Satellite-tracked, DGPS-equipped Lagrangian surface-current drifter deployments were conducted over 12 weeks between 14 April and 7 July 2015 at various locations within and offshore of the National Park of American Samoa study area to track surface currents. The drifters internally logged their location every 1 minute, and they transmitted their positions to satellites every 5 minutes. A drogue was attached to the drifters at 1 m below sea level in order to track the currents at that depth.

Purpose:

These drifter deployments were conducted as a part of a larger investigation into the circulation and transport along the coast off the National Park of American Samoa on the island of Tutuila, American Samoa.

Supplemental_Information:

Additional information about the field activities from which these data were derived are available online at:
http://cmgds.marine.usgs.gov/2015-601-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: 20150414
Ending_Date: 20150707

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: -170.762114
East_Bounding_Coordinate: -170.623177
North_Bounding_Coordinate: -14.204308
South_Bounding_Coordinate: -14.296368

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:58c9b834e4b0849ce97b4bd8

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Oceans
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Water Column Features

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Ocean Circulation

Theme:

Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD)
Theme_Keyword: CORAL REEFS
Theme_Keyword: OCEAN CURRENTS

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: Physical Oceanography

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Samoa Islands
Place_Keyword: National Park of American Samoa
Place_Keyword: Territory of American Samoa
Place_Keyword: Tutuila Island

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 and National Park Service 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
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA

Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

https://www.sciencebase.gov/catalog/file/get/58c9b834e4b0849ce97b4bd8?name=NPSADrifterPlot.jpg&allowOpen=true

Browse_Graphic_File_Description: Plot of all deployments of drifter tracks
Browse_Graphic_File_Type: JPEG

Data_Set_Credit:

Staff of the National Park of American Samoa contributed to the deployment of the drifters over the time period of deployments.

Native_Data_Set_Environment: Data were plotted in ArcGIS.
Cross_Reference:

Citation_Information:

Originator: Curt D. Storlazzi
Originator: Olivia M. Cheriton
Originator: Joshua B. Logan
Originator: Timothy B. Clark
Publication_Date: 2017
Title:

Coastal circulation and water-column properties in the National Park of American Samoa, February-July 2015

Online_Linkage: https://doi.org/10.3133/ofr20171060

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Data were plotted in ARC/GIS to ensure that only data points that represent the period that each drifter was free-floating are included, and extraneous points were removed (such as points on land or on the research vessel).

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:

Horizontal positional accuracy provided by the manufacturer (Pacific Gyre) is +/- 10 meters

Lineage:

Process_Step:

Process_Description:

Data were imported into Matlab to parse the data from one data file into individual drifter deployments. Distance, azimuth and drifter velocity were calculated using the GPS fixes.

Source_Used_Citation_Abbreviation: derivation of speed
Process_Date: 20170118

Process_Step:

Process_Description:

Edited attribute resolution on two attributes to be numeric only (from "1 second" to "1"). Updated Point of Contact and Metadata Contact information. No data were changed.

Process_Date: 20190507
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Susan A. Cochran
Contact_Organization: Pacific Coastal and Marine Science Center

Contact_Position: Assistant Deputy Center Director
Contact_Address:

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

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: Point
Point_and_Vector_Object_Count: 8910

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: ASCII Table
Entity_Type_Definition:

Comma-delimited ascii table of time, position, distance and direction travelled, and speed of ocean Lagrangian drifter.

Entity_Type_Definition_Source: Producer defined

Attribute:

Attribute_Label: DT_UTC
Attribute_Definition: Date and time referenced to Universal Coordinated Time
Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 14-Apr-2015 00:00:00
Range_Domain_Maximum: 07-Jul-2015 23:59:59
Attribute_Units_of_Measure: seconds
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: DT_LCL
Attribute_Definition: Date and time referenced to Local Time
Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 14-Apr-2015 00:00:00
Range_Domain_Maximum: 07-Jul-2015 23:59:59
Attribute_Units_of_Measure: seconds
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: LAT
Attribute_Definition: Latitude in decimal degrees
Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -14.285861
Range_Domain_Maximum: -14.191470
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.000001

Attribute:

Attribute_Label: LON
Attribute_Definition: Longitude in decimal degrees
Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -170.733699
Range_Domain_Maximum: -170.651163
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.000001

Attribute:

Attribute_Label: UTMX
Attribute_Definition:

X-coordinate in Universal Transverse Mercator Projection, Zone 2

Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 8420640.8
Range_Domain_Maximum: 8431075.6
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: UTMY
Attribute_Definition:

Y-coordinate in Universal Transverse Mercator Projection, Zone 2

Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 528725.1
Range_Domain_Maximum: 537629.9
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: UTMZONE
Attribute_Definition: UTM Zone for this latitude/longitude
Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: UTM Zone
Enumerated_Domain_Value_Definition: Zone Number
Enumerated_Domain_Value_Definition_Source: unknown

Attribute:

Attribute_Label: DIST_M
Attribute_Definition: Along-track distance travelled between point x and point x-1
Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 181.5
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: AZIMUTH
Attribute_Definition: Azimuth of distance travelled between point x and point x-1
Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 360
Attribute_Units_of_Measure: Degrees
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: VEL_MS
Attribute_Definition: Velocity of drifter between point x and point x-1
Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 2
Attribute_Units_of_Measure: Meters per second
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: VEL_KTS
Attribute_Definition: Velocity of drifter between point x and point x-1
Attribute_Definition_Source: Global Positioning System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 4
Attribute_Units_of_Measure: Nautical miles per hour (knots)
Attribute_Measurement_Resolution: 0.1

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 - 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:

This zip file (NPSADrifterCSVFiles_namedwithLCLStart.zip) contains 26 individual .csv files, one for each drifter deployment. The files names represent YYYY-MM-DD-HHMMSS (local time) and drifter number.

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: csv
Format_Information_Content:

Zip file contains the csv tables for each individual drifter deployment.

File_Decompression_Technique:

Windows users can use WinZIP to uncompress the files; Apple Macintosh users, Archive Utility; Linux and Unix users, gunzip.

Transfer_Size: .280

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/58c9b834e4b0849ce97b4bd8?name=NPSADrifterCSVFiles_namedwithLCLStart.zip

Network_Resource_Name: http://doi.org/10.5066/F7RN362H

Access_Instructions: Data can be downloaded via the Internet

Fees: None.

Technical_Prerequisites: These data can be viewed with any text editor software.

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
Country: United States

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_F7RN362H/NPSADrifter_metadata.html>