Metadata: Identification_Information: Citation: Citation_Information: Originator: Andrew W. Stevens Originator: Guy Gelfenbaum Originator: Jamie MacMahan Originator: Ad J.H.M. Reniers Originator: Edwin P. Elias Originator: Christopher R. Sherwood Originator: Emily M. Carlson Publication_Date: 2017 Title: Lagrangian drifter data from the mouth of the Columbia River, Oregon and Washington, 2013 Geospatial_Data_Presentation_Form: NetCDF files Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/F7NG4NS1 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/F7NG4NS1 Online_Linkage: https://www.sciencebase.gov/catalog/file/get/5907955fe4b0fc4e448eb011?name=mcr13_drifter_data.zip Larger_Work_Citation: Citation_Information: Originator: Andrew W. Stevens Originator: Guy Gelfenbaum Originator: Jamie MacMahan Originator: Ad J.H.M. Reniers Originator: Edwin P. Elias Originator: Christopher R. Sherwood Originator: Emily M. Carlson Publication_Date: 2017 Title: Oceanographic measurements and hydrodynamic modeling of the mouth of the Columbia River, Oregon and Washington, 2013 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/F7NG4NS1 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/F7NG4NS1 Description: Abstract: Lagrangian surface currents were measured using drifters equipped with global navigation satellite system (GNSS) receivers. A total of 8 drifter deployments were performed between May 25 and June 8, 2013. For each deployment, drifters were released within the MCR and their positions were recorded until the drifters were recovered. The average duration of the drifter deployments varied between 1.6 h and 17.2 h and the number of drifters released in a deployment ranged between 11 and 84. The initial positions and timing of the release of the drifters relative to the tidal cycle varied throughout the drifter deployments. Digital files containing the drifter data from each deployment are available in NetCDF format. Purpose: These drifter deployments were conducted as a part of a larger investigation into the hydrodynamics of the mouth of the Columbia River, Oregon and Washington, in 2013. Supplemental_Information: Additional information about the field activities from which these data were derived are available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=S0313WO 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: 20130525 Ending_Date: 20130608 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: -125.177190 East_Bounding_Coordinate: -123.850667 North_Bounding_Coordinate: 46.434430 South_Bounding_Coordinate: 44.680610 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5907955fe4b0fc4e448eb011 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: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: Physical Oceanography Theme_Keyword: Currents Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Columbia River Place_Keyword: Pacific County Place_Keyword: Clatsop County Place_Keyword: State of Washington Place_Keyword: State of Oregon 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_Person_Primary: Contact_Person: Andrew W. Stevens 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 Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7424 Contact_Facsimile_Telephone: 831-427-4748 Contact_Electronic_Mail_Address: astevens@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/5907955fe4b0fc4e448eb011?name=drifter_overview_1.png&allowOpen=true Browse_Graphic_File_Description: Plot of drifter tracks from deployments 1-4. Browse_Graphic_File_Type: PNG Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/5907955fe4b0fc4e448eb011?name=drifter_overview_2.png&allowOpen=true Browse_Graphic_File_Description: Plot of drifter tracks from deployments 5-8. Browse_Graphic_File_Type: PNG Native_Data_Set_Environment: Matlab version 9.0.0.341360 running on Microsoft Windows 7 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Data were reviewed 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: All data fall 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: Horizontal positional accuracy provided by the manufacturer is 10 m. Lineage: Process_Step: Process_Description: The drifters were each constructed with a 0.5-m section of standard dimension ratio 35 polyvinyl chloride pipe capped at both ends. Holes were drilled into the end caps and a 2.27 kg weight was attached to the bottom of the drifter. Foam collars were attached around the outer diameter of the top caps to provide buoyancy for the drifters. Waterproof cases attached to the top of the drifters housed two types of GNSS receivers. Positioning of the drifters was recorded at 1-Hz intervals using an internally-logging Genie GT-31 L/1 GNSS receiver. Each drifter was also equipped with a SPOT GNSS device that reported drifter positions at 5-min intervals via satellite. The positions from the SPOT GNSS were used in the event that the drifter was not recovered. Process_Date: 20130301 Process_Step: Process_Description: A total of 8 drifter deployments were performed between May 25 and June 8, 2013. For each deployment, drifters were released within the mouth of the Columbia River and their positions were recorded until the drifters were recovered. Deployment and recovery operations were performed from the R/V Parke Snavely and two personal watercraft. Process_Date: 20130608 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. The data from each deployment were accumulated into NetCDF files for distribution. Process_Date: 20160617 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: 4479785 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: Overview_Description: Entity_and_Attribute_Overview: NetCDF files are self-contained and attribute information may be found in the header of the file itself. 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 - 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 (mcr13_drifter_data.zip) contains 8 individual NetCDF files, one for each drifter deployment. The files names represent drifter deployments beginning on MM-DD-YY (local time). 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: NetCDF Format_Version_Number: Matlab 9.0.0.341360 Format_Information_Content: Zip file contains drifter data in NetCDF format File_Decompression_Technique: zip archive Transfer_Size: 189.16 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5907955fe4b0fc4e448eb011?name=mcr13_drifter_data.zip Network_Resource_Name: https://doi.org/10.5066/F7NG4NS1 Access_Instructions: Data may be accessed and downloaded via the Internet Digital_Form: Digital_Transfer_Information: Format_Name: png Format_Version_Number: Matlab 9.0.0.341360 Format_Information_Content: PNG image showing drifter tracks for deployments 1-4 File_Decompression_Technique: none Transfer_Size: 1.21 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5907955fe4b0fc4e448eb011?name=drifter_overview_1.png Network_Resource_Name: https://doi.org/10.5066/F7NG4NS1 Access_Instructions: Data may be accessed and downloaded via the Internet Digital_Form: Digital_Transfer_Information: Format_Name: png Format_Version_Number: Matlab 9.0.0.341360 Format_Information_Content: PNG image showing drifter tracks for deployments 5-8 File_Decompression_Technique: none Transfer_Size: 1.93 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5907955fe4b0fc4e448eb011?name=drifter_overview_2.png Network_Resource_Name: https://doi.org/10.5066/F7NG4NS1 Access_Instructions: Data may be accessed and 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_Person_Primary: Contact_Person: Andrew W. Stevens 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 Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Country: United States of America Contact_Voice_Telephone: 831-460-7424 Contact_Electronic_Mail_Address: astevens@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998