Metadata: Identification_Information: Citation: Citation_Information: Originator: Erin O. Lyons Originator: Nancy T. DeWitt Publication_Date: 20240220 Title: Coastal Single-beam Bathymetry Data Collected in 2022 From Breton Island, Louisiana Geospatial_Data_Presentation_Form: tabular and vector digital data Larger_Work_Citation: Citation_Information: Originator: Erin O. Lyons Originator: Nancy T. DeWitt Originator: Jim G. Flocks Originator: Billy J. Reynolds Originator: Andrew S. Farmer Originator: Julie C. Bernier Originator: Benjamin A. Galbraith Originator: Chelsea A. Stalk Originator: Natasha J. Nieckoski Originator: Maxwell O. Reynolds Publication_Date: 20240220 Title: Coastal Single-beam Bathymetry Data Collected in 2022 From Breton Island, Louisiana Series_Information: Series_Name: U.S. Geological Survey data release Issue_Identification: doi:10.5066/P97NH83J Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Online_Linkage: https://doi.org/10.5066/P97NH83J Description: Abstract: As part of the restoration monitoring component of the Deepwater Horizon early restoration project, scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC) conducted single-beam and multibeam bathymetry surveys around Breton Island, Louisiana (LA), from August 3-5, 2022, for Field Activity Number (FAN) 2022-328-FA. The purpose of data collection was to develop a baseline digital elevation model of the seafloor around Breton Island for comparison with both previous and future elevation assessments, and to evaluate elevation change following island restoration. The survey encompassed approximately 65 square kilometers of nearshore environment including the former Mississippi River to Gulf Outlet and submerged areas of South Breton Island. The single-beam bathymetry was acquired using two 12-foot personal watercrafts (PWCs) and a 20-foot Twin Vee. All vessels were outfitted with high precision Global Navigation Satellite System (GNSS) receivers, motion reference units, and survey grade single-beam echosounders. For further information regarding data collection and/or processing, please see the metadata associated with this data release. For additional information on post-processing steps please refer to DeWitt and others (2016) and Hansen and others (2017). Purpose: This data release serves as an archive of single-beam bathymetry collected August 3-5, 2022, offshore of Breton Island, LA, during USGS Field Activity Number 2022-328-FA; subFANs 22BIM07 (research vessel [R/V] Twin Vee), 22BIM08 (R/V Shark – WVR1), and 22BIM09 (R/V Chum – WVR1). Additional survey and data details are available on the Coastal and Marine Geoscience Data System (CMGDS) at, https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-328-FA. The dataset, Breton_Island_2022_SBES_WGS84_UTM16N_xyz.zip provides single-beam bathymetry data points (x,y,z) referenced to World Geodetic System 1984 (WGS84) Universal Transverse Mercator (UTM) Zone 16 North (N) for the horizontal (x,y) and WGS84 ellipsoid height for the vertical (z). The dataset Breton_Island_2022_SBES_NAD83_NAVD88_UTM16N_GEOID18_xyz.zip provides single-beam bathymetry data points (xyz) referenced to North American Datum of 1983 (NAD83) UTM Zone 16N for the horizontal (x,y,z) and North American Vertical Datum of 1988 (NAVD88) orthometric height using the GEOID18 model for the vertical (z). Supplemental_Information: For the single-beam bathymetry data, the differential positioning was obtained through post-processing the base station data to the rovers. The dataset was transformed from the initial WGS84 (G1762) UTM 16N, ellipsoid height datum to NAD83 UTM 16N NAVD88, using the GEOID18 model (National Oceanic Atmospheric Administration [NOAA] and the National Geodetic Survey [NGS] VDatum software version 4.6.1 - https://vdatum.noaa.gov/). Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20220803 Ending_Date: 20220805 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -89.2405080 East_Bounding_Coordinate: -89.0922384 North_Bounding_Coordinate: 29.5347687 South_Bounding_Coordinate: 29.4324346 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:b751241e-b0ca-4c7f-a324-afaa815ad2b8 Theme: Theme_Keyword_Thesaurus: Global Change Master Directory Theme_Keyword: EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY > COASTAL BATHYMETRY Theme_Keyword: GOVERNMENT AGENCIES-U.S. FEDERAL AGENCIES > DOI > USGS DOI/USGS/CMG/SP Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: marine geology Theme_Keyword: geophysics Theme_Keyword: bathymetry Theme_Keyword: single-beam echo sounder Theme_Keyword: ocean characteristics Theme_Keyword: ocean processes Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: hydrography Theme_Keyword: trackline Theme_Keyword: single-beam bathymetry Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: elevation Theme_Keyword: oceans Theme_Keyword: location Theme_Keyword: imageryBaseMapsEarthCover Place: Place_Keyword_Thesaurus: Common Geographic Areas Place_Keyword: Louisiana Place_Keyword: United States Place_Keyword: Breton Islands Place: Place_Keyword_Thesaurus: None Place_Keyword: Breton Island, Louisiana Place_Keyword: Mid-Gulf Coast Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 2022 Access_Constraints: None. These data are held in the public domain. Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originator of these data in future products or derivative research. These data should not be used for navigational purposes. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Erin O. Lyons Contact_Organization: Cherokee Nation System Solutions Contact_Position: Biological Scientist Researcher V Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701-4846 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: elyons@contractor.usgs.gov Data_Set_Credit: Funding and (or) support for this study were provided as part of the restoration monitoring component of the Deepwater Horizon early restoration project. Native_Data_Set_Environment: Environment as of Metadata Creation: Microsoft Windows 10 Enterprise Version 22H2 (Build 19045.3570); Environmental Systems Research Institute (Esri) ArcMap version 10.8.2.28388; Esri ArcGIS Pro version 3.1.3; NOAA NGS VDatum software version 4.6.1 (https://vdatum.noaa.gov/); NGS Online Positioning User Service (OPUS, https://geodesy.noaa.gov/OPUS/); NovAtel’s GrafNav, version 8.90.5126; Horizontal Time-Dependent Positioning (HTDP) online transformation utility version 3.2.9; HYPACK A Xylem Brand version 21.0.2.0; CARIS HIPS and SIPS (Hydrographic Information Processing System and Sonar Information Processing System) version 11.4.16; XTools Pro version 23.0.4565. Cross_Reference: Citation_Information: Originator: Nancy T. Dewitt Originator: Joseph J. Fredericks Originator: James G. Flocks Originator: Jennifer L. Miselis Originator: Stanley D. Locker Originator: Jack L. Kindinger Originator: Julie C. Bernier Originator: Kyle W. Kelso Originator: Billy J. Reynolds Originator: Dana S. Wiese Originator: Trevor N. Browning Publication_Date: 20160801 Title: Archive of bathymetry and backscatter data collected in 2014 nearshore Breton and Gosier Islands, Breton National Wildlife Refuge, Louisiana: U.S. Geological Survey Data Series 1005 Series_Information: Series_Name: U.S. Geological Survey Data Series Issue_Identification: 1005 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ds1005 Cross_Reference: Citation_Information: Originator: Mark E. Hansen Originator: Nancy T. Dewitt Originator: Billy J. Reynolds Publication_Date: 20170810 Title: Archive of bathymetry data collected in South Florida from 1995 to 2015 Series_Information: Series_Name: U.S. Geological Survey Data Series Issue_Identification: 1031 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ds1031 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The accuracy of the data was determined during data collection. This dataset is derived from a single field survey using identical equipment set-ups, and staff; therefore, the dataset is internally consistent. Methods were employed to maintain data collection consistency aboard the platforms. During mobilization, each piece of equipment was isolated to obtain internal- and external-offset measurements with respect to the survey platform. All the critical measurements were recorded manually, and then digitally entered into their respective programs. Offsets between the single-beam transducers, motion reference units, and the antenna reference point (ARP) were measured using a geodimeter and accounted for during acquisition and (or) in post-processing. Differential Global Positioning System (DGPS) coordinates were obtained using the following post-processing software packages: NGS OPUS and NovAtel’s Waypoint Product Group GrafNav. Logical_Consistency_Report: These data were collected during a single field activity with consistent instrument calibrations. Completeness_Report: This data release contains single-beam bathymetry data points in the horizontal position and vertical elevation (x,y,z) from August 2022 collected around Breton Island, Louisiana. Users are advised to read the complete metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The USGS installed a benchmark on Breton Island in 2007, stamping BRET, which does not have an associated Permanent Identifier (PID) as it is not in the NGS database. The coordinate values of the GPS base station (BRET) are the time-weighted average of values obtained from the NGS OPUS. The GPS and GNSS occupations occurred during surveys in 2007, 2014, and 2022. The latest realization G1762 was introduced on 01/23/21. The survey acquisition dates succeed this date; therefore, it was the appropriate datum realization for post-processing the navigation data which was acquired in the WGS84 datum. The base position used for post-processing the bathymetry in this data release was 29°29’38.33211 North (WGS84-G1762), 89°10’29.28099 West (WGS84-G1762), and -25.254 meters (m) ellipsoid height (WGS84-G1762). The USGS installed a PK Nail on a bulkhead and erected a GPS base station called BRT2, which serves as the secondary base station, but it was not needed for post-processing this dataset. The kinematic trajectories (rover to base) were processed using NovAtel’s Waypoint GrafNav software. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The ellipsoid height value -25.254 m (WGS84-G1762) was used in NovAtel’s Waypoint GrafNav software. Please refer to the Horizontal_Positional_Accuracy_Report segment for vertical position transformation into ellipsoid height. Lineage: Process_Step: Process_Description: GNSS Acquisition: Two Global Navigational Satellite Systems (GNSS) base stations were established on NGS benchmarks in which the roving vessels would be within 10 kilometers (km) of the base station at a given time. The primary benchmark BRET was approximately located in the middle of the survey extent and the secondary base station BRT2 was located to the northeast. The base stations were continually occupied and equipped with a Spectra Precision SP90M GNSS receiver recording full-carrier-phase positioning signals from satellites via Trimble Zephyr 3 Base GNSS antennas recording at a rate of 0.1 second (s). Process_Date: 2023 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Erin O. Lyons Contact_Organization: Cherokee Nation System Solutions Contact_Position: Biological Scientist Researcher V Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701-4846 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: elyons@contractor.usgs.gov Process_Step: Process_Description: Single-Beam Bathymetry Acquisition: The single-beam bathymetric data collected under the USGS FAN 2022-328-FA, include three separate survey platforms/subFANs; the R/V Twin Vee (subFAN 22BIM07), the R/V Shark (WVR1 subFAN 22BIM08) and the R/V Chum (WVR2 - subFAN 22BIM09), the 12-foot Yamaha PWCs. The R/V Twin Vee collected 253.85 line-km, the R/V Shark collected 138.53 line-km, and the R/V Chum collected 163.00 line-km. Boat motion was recorded on each vessel at 50-millisecond (ms) using a SBG Ellipse A motion sensor. HYPACK A Xylem Brand, a marine surveying, positioning, and navigation software package, managed the planned-transect information and provided real-time navigation, steering, correction, data quality, and instrumentation-status to the boat operator. Depth soundings were recorded at 50-ms intervals using an Odom echotrac CV100 echosounder with a 4-degree, 200-kilohertz (kHz) transducer. For each vessel, data from the GNSS receiver, motion sensor, and echosounder were recorded in real-time and merged into a single raw data file (.RAW) in HYPACK, with each device string referenced by a device identification code and time stamped to Coordinated Universal Time (UTC). Sound velocity profile (SVP) measurements were collected using SonTek Castaway Conductivity, Temperature, and Depth (CTD) instruments. The instruments were periodically cast overboard to record changes in water column speed of sound (SOS). A total of 87 successful sound velocity casts were collected and ranged in depth from 0.15 to 12.65 m, and in sound velocity from 1515.17 to 1542.43 meters per second (m/s). Process_Date: 2023 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Erin O. Lyons Contact_Organization: Cherokee Nation System Solutions Contact_Position: Biological Scientist Researcher V Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701-4846 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: elyons@contractor.usgs.gov Process_Step: Process_Description: Differentially Corrected Navigation Processing: The USGS installed a benchmark on Breton Island in 2007, stamping BRET, but does not have an associated Permanent Identifier (PID) as it is not in the NGS database. The coordinate values of the GPS base station (BRET) are the time-weighted average of values obtained from the NGS OPUS. The GPS and/or GNSS (based upon antenna type) occupations occurred during surveys in 2007, 2014, and 2022. The base position used for post-processing the navigation in this data release was 29°29’38.33211 North (WGS84-G1762), 89°10’29.28099 West (WGS84-G1762), and -25.254 meters (m) ellipsoid height (WGS84-G1762). The kinematic trajectories (rover to base) and base station coordinates were imported and processed using NovAtel’s Waypoint GrafNav software. Each kinematic GNSS data session from the survey vessel was post-processed to the concurrent base GNSS data session. Analyzing the data plots, trajectory maps, processing logs, satellite health plots, and other viewing utilities that GrafNav produces, provided measures to attain trajectory solutions (between the base and the rover) free of erroneous data that resulted in fixed positions. Some examples include 1) excluding satellites flagged by the program as having bad/poor health or cycle slips, 2) Excluding poor satellite time segments that have a negative influence toward a fixed solution, and 3) adjusting the satellite elevation mask angle to improve the position solutions (DeWitt and others, 2016; Hansen and others, 2017). The final differentially corrected, precise DGPS positions were computed at 0.1 s and exported in American Standard Code for Information Interchange (ASCII) text format in WGS84 (G1762) UTM 16N geodetic datum. Process_Date: 2023 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Erin O. Lyons Contact_Organization: Cherokee Nation System Solutions Contact_Position: Biological Scientist Researcher V Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701-4846 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: elyons@contractor.usgs.gov Process_Step: Process_Description: Bathymetry Processing: All data were processed using CARIS HIPS and SIPS. First, a vessel file *.vhf unique to the platform, was created that contains the surveyed offsets measurements between the sensors. A CARIS project was created using the *.vhf file, and then the HYPACK .RAW and the SPV profiles *.SVP were loaded. Next, the differentially corrected navigation files were imported using the generic data parser tool. Then, the differently corrected navigation files overwrote every non-differential position in the HYPACK .RAW file based upon time. The bathymetric data components (position, motion, depth, and SOS) were then georeferenced and geometrically corrected in CARIS to produce processed x,y,z positional data. Once georeferenced, the data were reviewed and edited for outliers, including further review in the Subset Editor utility for crossing status, and questionable areas or data points were removed. The geometrically corrected point data were then exported as an x,y,z ASCII text file referenced to WGS84 (G1762) UTM 16N (DeWitt and others, 2016; Hansen and others, 2017). Process_Date: 2023 Source_Produced_Citation_Abbreviation: 22BIM07_TVEE_SBES_WGS84_UTM16N_Level003_xyz.txt Source_Produced_Citation_Abbreviation: 22BIM08_WVR1_SBES_WGS84_UTM16N_Level003_xyz.txt Source_Produced_Citation_Abbreviation: 22BIM09_WVR2_SBES_WGS84_UTM16N_Level003_xyz.txt Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Erin O. Lyons Contact_Organization: Cherokee Nation System Solutions Contact_Position: Biological Scientist Researcher V Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701-4846 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: elyons@contractor.usgs.gov Process_Step: Process_Description: Quality Control, Quality Assurance (QA/QC) and Uncertainty Analysis: The single-beam data (all vessels contained in one file) exported from CARIS HIPS and SIPS (x,y,z ASCII text file) were transformed in Esri ArcMap to a point shapefile (.shp) utilizing the "Create Feature Class From XY Table" geoprocessing tool. The projection was set to WGS84 UTM 16N. The generated shapefiles were visually reviewed for any obvious outliers or problems. Next, polyline shapefiles (representing tracklines) was produced from the point shapefiles using XTools Pro "Make Polylines from Points" geoprocessing tool for each survey platform (subFANs 22BIM07, 22BIM08 and 22BIM09). Utilizing both the x,y,z (point) and trackline (polyline) shapefiles, a Python script was used to evaluate elevation differences at the intersection of crossing tracklines by calculating the elevation difference between points at each intersection using an inverse distance weighting equation with a search radius of 5 m. The crossing analysis yielded a 6.30 cm root-mean-square (RMS) error for all crossings (DeWitt and others, 2016; Hansen and others, 2017). When the R/V Twin Vee crossed one of its own lines, the crossing analysis yielded a 2.23 cm RMS error. When the R/V Twin Vee crossed a line surveyed by the R/V Chum, the crossing analysis yielded a 12.36 cm RMS error. When the R/V Twin Vee crossed a line surveyed by the R/V Shark, the crossing analysis yielded an 8.03 cm RMS error. When the R/V Chum crossed one of its own lines, the crossing analysis yielded a 6.48 cm RMS error. When the R/V Chum crossed a line surveyed by the R/V Shark, the crossing analysis yielded a 7.11 cm RMS error. When the R/V Shark crossed one of its own lines, the crossing analysis yielded a 6.48 cm RMS error. The crossings in ArcMap were solely used as a QA/QC and the ASCII export from CARIS was used as the final data product. The ASCII text file can be downloaded from this data release in Breton_Island_2022_SBES_WGS84_UTM16N_xyz.zip, and the trackline shapefile from Breton_Island_2022_SBES_WGS84_UTM16N_tracklines.zip. Source_Used_Citation_Abbreviation: 22BIM07_TVEE_SBES_WGS84_UTM16N_Level003_xyz.txt Source_Used_Citation_Abbreviation: 22BIM08_WVR1_SBES_WGS84_UTM16N_Level003_xyz.txt Source_Used_Citation_Abbreviation: 22BIM09_WVR2_SBES_WGS84_UTM16N_Level003_xyz.txt Process_Date: 2023 Source_Produced_Citation_Abbreviation: Breton_Island_2022_SBES_WGS84_UTM16N_xyz.txt Source_Produced_Citation_Abbreviation: Breton_Island_2022_SBES_WGS84_UTM16N_tracklines.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Erin O. Lyons Contact_Organization: Cherokee Nation System Solutions Contact_Position: Biological Scientist Researcher V Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701-4846 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: elyons@contractor.usgs.gov Process_Step: Process_Description: Datum Transformation: NOAA/NGS's VDatum was used to transform the single-beam data points' horizontal and vertical datums (x,y,z). The first transformation was from WGS84 (G1762) UTM 16N into NAD83 (horizontal) UTM 16N and NAVD88 (vertical) using GEOID18 with a reported vertical uncertainty of 0.0671095 m. VDatum reports a nationwide standard deviation of 2.0 centimeters (cm) for ellipsoid - NAD83 transformations, and a nationwide standard deviation of 5.0 cm for NAD83 to NAVD88 transformations in the coastal regions of the continental U.S. For more information about the positional accuracy for these datum transformations, visit the Estimation of Vertical Uncertainties VDatum webpage, https://vdatum.noaa.gov/docs/est_uncertainties.html. The resultant ASCII text data files can be downloaded from this data release in Breton_Island_2022_SBES_NAD83_NAVD88_UTM16N_GEOID18_xyz.zip. Source_Used_Citation_Abbreviation: Breton_Island_2022_SBES_WGS84_UTM16N_xyz.txt Process_Date: 2023 Source_Produced_Citation_Abbreviation: Breton_Island_2022_SBES_NAD83_NAVD88_UTM16N_GEOID18_xyz.txt Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Erin O. Lyons Contact_Organization: Cherokee Nation System Solutions Contact_Position: Biological Scientist Researcher V Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701-4846 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: elyons@contractor.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: 2553419 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 16N Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -87.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.6096 Ordinate_Resolution: 0.6096 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: World Geodetic System of 1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257223563 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: World Geodetic System of 1984 Altitude_Resolution: 0.01 Altitude_Distance_Units: meters Altitude_Encoding_Method: Attribute values Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Breton_Island_2022_SBES_WGS84_UTM16N_xyz.txt Entity_Type_Definition: Comma-delimited ASCII text file (.txt) containing the processed single-beam bathymetry data points from USGS FAN 2022-328-FA (subFANs 22BIM07, 22BIM08, and 22BIM09). Data are in the native acquisition and processing datum WGS84 (G1762) UTM Zone 16N. Text file attributes include WGS84_UTM16N_X (easting), WGS84_UTM_16N_Y (northing), WGS84_ELLIPSOID (ellipsoid height), WGS84_UTM_16N_LAT (latitude), WGS84_UTM16N_LONG (longitude), YEAR, DOY (day of year), UTC_TIME (Coordinated Universal Time), and HYPACK_LINE (HYPACK trackline name). Entity_Type_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: WGS84_UTM16N_X Attribute_Definition: x-axis coordinate, easting, WGS84 UTM 16N. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 282693.199 Range_Domain_Maximum: 297159.704 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: WGS84_UTM16N_Y Attribute_Definition: y-axis coordinate, northing, WGS84 UTM 16N. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3257889.791 Range_Domain_Maximum: 3269131.285 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: WGS84_ELLIPSOID Attribute_Definition: z-value, ellipsoid height (elevation), WGS84 UTM16N. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -38.793 Range_Domain_Maximum: -25.991 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: WGS84_UTM16N _LAT Attribute_Definition: x-axis coordinate, latitude, WGS84. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 29.432435 Range_Domain_Maximum: 29.534769 Attribute_Units_of_Measure: Decimal Degrees Attribute: Attribute_Label: WGS84_UTM16N_LONG Attribute_Definition: y-axis coordinate, longitude, WGS84. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -89.240508 Range_Domain_Maximum: -89.092238 Attribute_Units_of_Measure: Decimal Degrees Attribute: Attribute_Label: YEAR Attribute_Definition: Calendar year of data acquisition. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2022 Range_Domain_Maximum: 2022 Attribute: Attribute_Label: DOY Attribute_Definition: Day of Year of data acquisition. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 215 Range_Domain_Maximum: 217 Attribute: Attribute_Label: UTC_TIME Attribute_Definition: UTC time of data acquisition. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 13:17:10.224 Range_Domain_Maximum: 23:48:11.960 Attribute_Units_of_Measure: HH:MM:SS.s Attribute: Attribute_Label: HYPACK_LINE Attribute_Definition: Identifier assigned to each HYPACK line during acquisition. Attribute_Definition_Source: HYPACK/U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Example: 22BIM07_TVEE_0002_1741_1000, where the first 8 characters are the subFAN followed by an underscore (22BIM07_, 22BIM08_, or 22BIM09_), the next 5 characters are the platform/vessel followed by and underscore (TVEE_, WVR1_ or WVR2_), the next 14 characters are the HYPACK Line number and start time in UTC (0002_1741). If the line number has a segment there will be a value amended to that line (_0001, etc.). Detailed_Description: Entity_Type: Entity_Type_Label: Breton_Island_2022_SBES_NAD83_NAVD88_UTM16N_GEOID18_xyz.txt Entity_Type_Definition: Comma-delimited ASCII text file (.txt) containing of the processed single-beam bathymetry data points from USGS FAN 2022-328-FA (subFANs 22BIM07, 22BIM08, and 22BIM09). Data were re-projected from its native datum to NAD83 NAVD88 UTM Zone 16 North coordinate system with respect to the GEOID 18 datum. Text file attributes include WGS84_UTM16N_X (easting), WGS84_UTM_16N_Y (northing), WGS84_ELLIPSOID (ellipsoid height), WGS84_UTM_16N_LAT (latitude), WGS84_UTM16N_LONG (longitude), YEAR, DOY (day of year), UTC_TIME (Coordinated Universal Time), and HYPACK_LINE (HYPACK trackline name). Entity_Type_Definition_Source: VDatum Attribute: Attribute_Label: NAD83_UTM16N_X Attribute_Definition: x-axis coordinate, easting, NAD83 UTM 16N. Attribute_Definition_Source: VDatum Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 282694.055 Range_Domain_Maximum: 297160.557 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: NAD83_UTM16N_Y Attribute_Definition: y-axis coordinate, northing, NAD83 UTM 16N. Attribute_Definition_Source: VDatum Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3257889.186 Range_Domain_Maximum: 3269130.677 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: NAVD88_G18 Attribute_Definition: z-value, orthometric height (elevation) in NAVD88 GEOID 18 Attribute_Definition_Source: VDatum Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -13.008 Range_Domain_Maximum: -0.178 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: NAD83_UTM16N_LAT Attribute_Definition: x-axis coordinate, latitude, NAD83 UTM 16N. Attribute_Definition_Source: VDatum Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 29.432429 Range_Domain_Maximum: 29.534763 Attribute_Units_of_Measure: Decimal Degrees Attribute: Attribute_Label: NAD83_UTM16N_LONG Attribute_Definition: y-axis coordinate, longitude, NAD83 UTM 16N. Attribute_Definition_Source: VDatum Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -89.240499 Range_Domain_Maximum: -89.092229 Attribute_Units_of_Measure: Decimal Degrees Attribute: Attribute_Label: YEAR Attribute_Definition: Calendar year of data acquisition. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2022 Range_Domain_Maximum: 2022 Attribute: Attribute_Label: DOY Attribute_Definition: Day of Year of data acquisition. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 215 Range_Domain_Maximum: 217 Attribute: Attribute_Label: UTC_TIME Attribute_Definition: UTC time of data acquisition. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 13:17:10.224 Range_Domain_Maximum: 23:48:11.960 Attribute_Units_of_Measure: HH:MM:SS.s Attribute: Attribute_Label: HYPACK_LINE Attribute_Definition: Identifier assigned to each HYPACK line during acquisition. Attribute_Definition_Source: HYPACK/U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Example: 22BIM07_TVEE_0002_1741_1000, where the first 8 characters are the subFAN followed by an underscore (22BIM07_, 22BIM08_, or 22BIM09_), the next 5 characters are the platform/vessel followed by and underscore (TVEE_, WVR1_ or WVR2_), the next 14 characters are the HYPACK Line number and start time in UTC (0002_1741). If the line number has a segment there will be a value amended to that line (_1000, _2000, etc.) Detailed_Description: Entity_Type: Entity_Type_Label: Breton Island 2022 SBES WGS84 UTM16N Tracklines.shp Entity_Type_Definition: Polyline shapefile of the 252 single-beam bathymetry tracklines containing FID, Shape, HYPACK Line name, and line length (in meters). Entity_Type_Definition_Source: Esri Attribute: Attribute_Label: FID Attribute_Definition: Automatically generated feature attribute by Esri. Attribute_Definition_Source: Esri Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 252 Attribute: Attribute_Label: Shape Attribute_Definition: Automatically generated feature attribute by Esri. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: PolylineZM Attribute: Attribute_Label: Length_m Attribute_Definition: Length of the trackline polyline, in meters. Attribute_Definition_Source: Esri Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0829276794323 Range_Domain_Maximum: 6805.03026935 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: HYPACK_LIN Attribute_Definition: Identifier assigned to each HYPACK line during acquisition. Attribute_Definition_Source: HYPACK/U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Example: 22BIM03_SLED_0002_1741_1000, where the first 8 characters are the subFAN followed by an underscore (22BIM03_ or 22BIM05_), the next 5 characters are the platform/vessel followed by and underscore (SLED_ or WVR2_), the next 14 characters are the HYPACK Line number and start time in UTC (0002_1741). If the line number has a segment there will be a value amended to that line (_0001, etc.). Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Person: USGS SPCMSC Data Management Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Country: United States Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov Resource_Description: Breton_Island_2022_SBES_NAD83_NAVD88_UTM16N_GEOID18_xyz.txt, Breton_Island_2022_SBES_WGS84_UTM16N_tracklines.shp, Breton_Island_2022_SBES_WGS84_UTM16N_xyz.txt Distribution_Liability: This digital publication was prepared by an agency of the United States Government. Although these data were processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text, shapefile File_Decompression_Technique: ZIP Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P97NH83J/data/Breton_Island_2022_SBES_WGS84_UTM16N_xyz.zip Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P97NH83J/data/Breton_Island_2022_SBES_WGS84_UTM16N_tracklines.zip Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P97NH83J/data/Breton_Island_2022_SBES_NAD83_NAVD88_UTM16N_GEOID18_xyz.zip Fees: None Metadata_Reference_Information: Metadata_Date: 20240220 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Person: USGS SPCMSC Data Management Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Country: United States Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998