Metadata: Identification_Information: Citation: Citation_Information: Originator: Catherine N. Janda Originator: Jonathan A. Warrick Originator: Daniel Buscombe Originator: Sharon F. Batiste Originator: Mark A. Lundine Publication_Date: 20250814 Title: Tidally corrected shoreline positions for five groin fields sites around the United States Geospatial_Data_Presentation_Form: comma-delimited text Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P14BIJDN 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/P14BIJDN Online_Linkage: https://www.sciencebase.gov/catalog/item/68751d74d4be025f81987c27 Larger_Work_Citation: Citation_Information: Originator: Catherine N. Janda Originator: Jonathan A. Warrick Originator: Daniel Buscombe Originator: Sharon F. Batiste Originator: Mark A. Lundine Publication_Date: 2025 Title: Satellite-derived shorelines for five groin field sites across the United States. Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P14BIJDN Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested Citation: Janda, C.N., Warrick, J.A., Buscombe, D.D., Batiste, S.F., and Lundine, M.A., 2025, Satellite-derived shorelines for five groin field sites across the United States : U.S. Geological Survey data release, https://doi.org/10.5066/P14BIJDN. Description: Abstract: This data release provides tidally corrected shoreline positions for five groin field sites of around the United States (Ventura, CA, Newport Beach, CA , Santa Monica, CA, Long Branch, NJ, Sandwich, MA). The CSVs are derived from the software CoastSeg (Fitzpatrick and others, 2024). CoastSeg collects satellite images from Google Earth Engine to create shoreline data along with user supplied inputs based on the CoastSat methodology (Vos and others, 2019). Data have been tidally corrected based on beach foreshore slopes. The data can be viewed in either a text or spreadsheet program. Purpose: These shoreline positions were used to observe the change in shoreline position over the entire observed record for groin field sites across the country. The data are intended to be used to find erosion and accretion patterns, as well as observing if groin fields behave similarly at varying locations. This data set can be used both in geographic information systems (GIS) as well as other software such as MATLAB or Python. Supplemental_Information: 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: 19840101 Ending_Date: 20221231 Currentness_Reference: Years of available satellite imagery used to determine shoreline positions. Date range of January 1, 1984, to December 31, 2022, was used within CoastSeg (Fitzpatrick and others, 2024) to download satellite images from Google Earth Engine. Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -119.302302 East_Bounding_Coordinate: -70.390003 North_Bounding_Coordinate: 41.778327 South_Bounding_Coordinate: 33.603224 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: environment Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Structures Theme_Keyword: Distributions Theme_Keyword: Physical Habitats and Geomorphology Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: Ocean Sciences Theme_Keyword: Remote Sensing Theme_Keyword: Visible Light Imaging Theme_Keyword: Sea-level Change Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: Shoreline Accretion Theme_Keyword: Shoreline Erosion 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 Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:68751d74d4be025f81987c27 Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: State of California Place_Keyword: State of New Jersey Place_Keyword: Commonwealth of Massachusetts Place_Keyword: Sandwich Place_Keyword: Sandwich Harbor Place_Keyword: Long Branch Place_Keyword: Ventura Place_Keyword: Ventura City Beach Place_Keyword: Santa Monica Place_Keyword: Santa Monica Bay Place_Keyword: Newport Beach 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 Native_Data_Set_Environment: The datasets were created on a Windows 11 operating system, using CoastSeg v1.2.16. Results are outputted as R files that are read into Matlab R2019b and Python 3.8. Cross_Reference: Citation_Information: Originator: Sharon Fitzpatrick Originator: Daniel Buscombe Originator: Jonathan A. Warrick Originator: Mark A. Lundine Originator: Killian Vos Publication_Date: 2024 Title: CoastSeg: an accessible and extendable hub for satellite-derived shoreline (SDS) detection and mapping Other_Citation_Details: Fitzpatrick, S., Buscombe, D., Warrick, J.A., Lundine, M.A., Vos, K., 2024, CoastSeg: an accessible and extendable hub for satellite-derived shoreline (SDS) detection and mapping: Journal of Open Source Software, https://doi.org/10.21105/joss.06683. Online_Linkage: https://doi.org/10.21105/joss.06683 Cross_Reference: Citation_Information: Originator: Killian Vos Originator: Kristen D. Splinter Originator: Mitchell D. Harley Originator: Joshua A. Simmons Originator: Ian L. Turner Publication_Date: 2019 Title: CoastSat: A Google Earth Engine-enabled Python toolkit to extract shorelines from publicly available satellite imagery Other_Citation_Details: Vos K., Splinter, K.D., Harley M.D., Simmons, J.A., Turner, I.L., 2019, CoastSat: A Google Earth Engine-enabled Python toolkit to extract shorelines from publicly available satellite imagery: Environmental Modelling & Software, https://doi.org/10.1016/j.envsoft.2019.104528 Online_Linkage: https://doi.org/10.1016/j.envsoft.2019.104528 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attribute values are estimated such as shoreline position based on satellite imagery. Vos and others (2019) assessed this method which compared to ground-based surveys at Duck, North Carolina. The authors are using a cross-shore horizontal error of 10 meters root mean squared error (RMSE) in most locations. In more dynamic areas such as river mouths, capes, and the ends of spits, the uncertainty is greater, and all positions should be inspected further. Logical_Consistency_Report: Data have undergone quality assurance and quality control (QA/QC) and fall within expected ranges. Completeness_Report: Data are considered complete for the information presented. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Data are respective with its specified transect locations. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: There has not been a formal accuracy assessment of vertical position in this dataset and/or is not applicable. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2020 Title: Landsat 4-5 Thematic Mapper Level-1, Collection 2 Geospatial_Data_Presentation_Form: Remote-Sensing Image Publication_Information: Publication_Place: online Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P918ROHC Type_of_Source_Media: online database Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19840101 Ending_Date: 20120531 Source_Currentness_Reference: Date range of available satellite imagery used to determine shoreline positions Source_Citation_Abbreviation: Landsat 5 imagery Source_Contribution: The archive of satellite images from Earth Explorer was used to derive the shoreline positions for the study Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2022 Title: Landsat 7 Enhanced Thematic Mapper Plus Level-1, Collection 2 Geospatial_Data_Presentation_Form: Remote-Sensing Image Publication_Information: Publication_Place: online Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9TU80IG Type_of_Source_Media: online database Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19990401 Ending_Date: 20221231 Source_Currentness_Reference: Date range of available satellite imagery used to determine shoreline positions Source_Citation_Abbreviation: Landsat 7 imagery Source_Contribution: The archive of satellite images from Earth Explorer was used to derive the shoreline positions for the study Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2022 Title: Landsat 8-9 Operational Land Imager / Thermal Infrared Sensor Level-1, Collection 2 Geospatial_Data_Presentation_Form: Remote-Sensing Image Publication_Information: Publication_Place: online Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P975CC9B Type_of_Source_Media: online database Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20130201 Ending_Date: 20221231 Source_Currentness_Reference: Date range of available satellite imagery used to determine shoreline positions Source_Citation_Abbreviation: Landsat 8-9 imagery Source_Contribution: The archive of satellite images from Earth Explorer was used to derive the shoreline positions for the study Source_Information: Source_Citation: Citation_Information: Originator: Copernicus Data Release EU Publication_Date: 2017 Title: Sentinel imagery (from Sentinel 2) Geospatial_Data_Presentation_Form: image Publication_Information: Publication_Place: online Publisher: Copernicus Data Release Online_Linkage: https://dataspace.copernicus.eu/explore-data/data-collections/sentinel-data/sentinel-2 Type_of_Source_Media: online database Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20170301 Ending_Date: 20221231 Source_Currentness_Reference: Date range of available satellite imagery used to determine shoreline positions Source_Citation_Abbreviation: Sentinel 2 imagery Source_Contribution: The archive of satellite images from Google Earth Engine was used to derive the shoreline positions for the study Source_Information: Source_Citation: Citation_Information: Originator: Carrere, L. Originator: Lyard, F. Originator: Cancet, M. Originator: Guillot, A. Originator: Picot, N. Publication_Date: 20160501 Title: FES (Finite Element Solution) 2014, a new tidal model—Validation results and perspectives for improvements Geospatial_Data_Presentation_Form: NetCDF Publication_Information: Publication_Place: online Publisher: AVISO Online_Linkage: https://www.aviso.altimetry.fr/en/data/products/auxiliary-products/global-tide-fes/description-fes2014.html Type_of_Source_Media: online database Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20160501 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: FES 2014 Source_Contribution: Tidal corrections in CoastSeg were made with tide height predictions from the FES 2014 model Source_Information: Source_Citation: Citation_Information: Originator: Amy Farris Originator: Kathryn M Weber Publication_Date: 2024 Title: Beach foreshore slope for the East Coast of the United States Geospatial_Data_Presentation_Form: CSV Publication_Information: Publication_Place: online Publisher: U.S. Geological Survey Online_Linkage: https://www.sciencebase.gov/catalog/item/663d18a6d34e77890839e46f Type_of_Source_Media: online database Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19970915 Ending_Date: 20180807 Source_Currentness_Reference: Ground condition at time data were collected Source_Citation_Abbreviation: Slopes_East Source_Contribution: The foreshore slopes were used to help tide correct the time-series data in CoastSeg Source_Information: Source_Citation: Citation_Information: Originator: Amy Farris Originator: Kathryn M Weber Publication_Date: 2024 Title: Beach foreshore slope for the West Coast of the United States Geospatial_Data_Presentation_Form: CSV Publication_Information: Publication_Place: online Publisher: U.S. Geological Survey Online_Linkage: https://www.sciencebase.gov/catalog/item/65a0296bd34e5af967a3841d Type_of_Source_Media: online database Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20220901 Ending_Date: 20110730 Source_Currentness_Reference: Ground condition at time data were collected Source_Citation_Abbreviation: Slopes_West Source_Contribution: The foreshore slopes were used to help tide correct the time-series data in CoastSeg Process_Step: Process_Description: Set up CoastSeg toolbox (Fitzpatrick and others, 2024) to derive the imagery and extract shorelines to be used in the region of interest (ROI). Version 1.2.16 was used to download the imagery from January 1, 1984, to December 31, 2022. Process_Date: 20240920 Process_Step: Process_Description: Ran CoastSeg toolbox on imagery downloaded from Google Earth Engine for the time period and geographical region of interest. CoastSeg version v1.2.16. was used to extract the shoreline positions. Only images free of clouds or pixel errors were included. Source_Used_Citation_Abbreviation: Landsat 5 imagery Source_Used_Citation_Abbreviation: Landsat 7 Source_Used_Citation_Abbreviation: Landsat 8-9 imagery Source_Used_Citation_Abbreviation: Sentinel 2 imagery Process_Date: 20241001 Process_Step: Process_Description: Data were tidally corrected in CoastSeg based off the slope data. Source_Used_Citation_Abbreviation: Slopes_East Source_Used_Citation_Abbreviation: Slopes_West Source_Used_Citation_Abbreviation: FES 2014 Process_Date: 20241101 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: 978745 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00000001 Longitude_Resolution: 0.00000000000001 Geographic_Coordinate_Units: Decimal Degrees Geodetic_Model: Horizontal_Datum_Name: WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.25722 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: NAVD88 Depth_Resolution: 1.0 Depth_Distance_Units: meters Depth_Encoding_Method: Implicit coordinate Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: [field site]_tidally_corrected_transect_time_series.csv Entity_Type_Definition: CSV file consisting of shoreline positions from 1984-2022 for five groin field sites across the United States (Ventura, CA, Newport Beach, CA, Santa Monica, CA, Long Branch, NJ, Sandwich, MA) that are tidally corrected based on satellite imagery from CoastSeg. Entity_Type_Definition_Source: Producer Defined Attribute: Attribute_Label: dates Attribute_Definition: date and time of extracted shoreline Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1984-03-23 17:50:13+00:00 Range_Domain_Maximum: 2022-12-30 15:21:20+00:00 Attribute_Units_of_Measure: time in yyyy-mm-dd HH:MM:SS+MS format Attribute: Attribute_Label: id Attribute_Definition: Unique identifier of transects along each region of intrest Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Unrepresentable_Domain: Transect IDs are defined based on the region of interest and geographical area within CoastSeg. CoastSeg assigns a three letter ID to the region of interest and then the number represents the transect number within that region. Attribute: Attribute_Label: x_start Attribute_Definition: Starting latitude position of transects Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -119.3013366 Range_Domain_Maximum: -70.41873515 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00000001 Attribute: Attribute_Label: y_start Attribute_Definition: Starting longitude position of transects Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 33.6048768400829 Range_Domain_Maximum: 41.7745954964064 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00000001 Attribute: Attribute_Label: x_end Attribute_Definition: Ending latitude position of transects Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -119.3008974 Range_Domain_Maximum: -70.41756874 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00000001 Attribute: Attribute_Label: y_end Attribute_Definition: Ending longitude position of transects Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 33.6021974100000 Range_Domain_Maximum: 41.7762958039487 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.0000000000001 Attribute: Attribute_Label: tide Attribute_Definition: observed tide at each recorded shoreline in meters with respect to mean sea level (MSL) Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1.57664120800000 Range_Domain_Maximum: 1.98502355268893 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 0.00000000000001 Attribute: Attribute_Label: cross_distance Attribute_Definition: distance along transect of extracted shoreline from transect origin point Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -13.8938642 Range_Domain_Maximum: 378.5238597 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 0.0000001 Attribute: Attribute_Label: shore_x Attribute_Definition: Latitude position of derived shoreline point Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -119.30127380 Range_Domain_Maximum: -70.41783678 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00000001 Attribute: Attribute_Label: shore_y Attribute_Definition: Longitude position of derived shoreline point Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 33.60341938 Range_Domain_Maximum: 41.77588717 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00000001 Attribute: Attribute_Label: slope Attribute_Definition: slope used for tide correction Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.067 Range_Domain_Maximum: 0.140 Attribute_Units_of_Measure: meters/meters Attribute_Measurement_Resolution: 0.001 Attribute: Attribute_Label: ref_elevation Attribute_Definition: Reference elevation Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Unrepresentable_Domain: Reference elevation is used within CoastSeg to aid in the tide correction process. Reference elevation for all sites in this study was mean sea level (MSL), and all sites had a reference elevation of zero. Overview_Description: Entity_and_Attribute_Overview: CSV files for Ventura, CA, Newport Beach, CA, Santa Monica, CA, Long Branch, NJ, and Sandwich, MA from 1984-2022. The first line of the CSV is a header line containing the names of each column. CSVs contain the date, transect ID, transect staring latitude point, transect starting longitude point, transect ending latitude point, transect ending longitude point, tide, cross distance, shoreline point latitude, shoreline point longitude, slope, and reference elevation of each point derived from the satellite imagery. Files are named by region and ROI number if the region has more than one ROI. ROIs are numbered from west to east or south to north following the numbering given by CoastSeg. 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 CSV format contained in a single zip file (GroinField_csv.zip) accompanied by 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: comma-deliminated text Format_Information_Content: These data are available in CSV format (for example, Ventura_transect_time_series_tidally_corrected.csv) contained in a single zip file (GroinField_csv.zip). Shorelines are identified by points along the transects where the start and end point of each transect is included in the CSV. File_Decompression_Technique: WinZip or archive utility Transfer_Size: 33 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/68751d74d4be025f81987c27 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/68751d74d4be025f81987c27 Network_Resource_Name: https://doi.org/10.5066/P14BIJDN Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of data and metadata. The second link points to a landing page with metadata and data. The third link points to the landing page for the entire data release. Fees: None. Technical_Prerequisites: These data can be viewed with GIS software such as ArcGIS or QGIS, numerical processing software such as Matlab or python, or any text editing software. Metadata_Reference_Information: Metadata_Date: 20250814 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