Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2015 Title: 2 meter Arc Raster grid of bathymetry acquired using a SEA Ltd. SWATHplus-H interferometric sonar within Barnegat Bay New Jersey by the U.S. Geological Survey in 2011, 2012, and 2013 (Esri binary grid, UTM 18N, WGS 84) Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Data Series Issue_Identification: 937 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: https://doi.org/10.3133/ds937 Online_Linkage: http://pubs.usgs.gov/ds/0937/downloads/raster/bathymetry/bbbath2m.zip Larger_Work_Citation: Citation_Information: Originator: Brian D. Andrews Originator: Jennifer L. Miselis Originator: William W. Danforth Originator: Barry J. Irwin Originator: Charles R. Worley Originator: Emile M. Bergeron Originator: Dann S. Blackwood Publication_Date: 2015 Title: Marine geophysical data collected in a shallow back-barrier estuary: Barnegat Bay, New Jersey Edition: 1.1 Series_Information: Series_Name: Data Series Issue_Identification: 937 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://dx.doi.org/10.3133/ds937 Online_Linkage: http://pubs.usgs.gov/ds/0937/ Description: Abstract: Water quality in the Barnegat Bay-Little Egg Harbor estuary along the New Jersey coast is the focus of a multidisciplinary research project begun in 2011 by the U.S. Geological Survey (USGS) in partnership with the New Jersey Department of Environmental Protection. This narrow estuary is the drainage for the Barnegat Watershed and flushed by just three inlets connecting it to the Atlantic Ocean, is experiencing degraded water quality, algal blooms, loss of seagrass, and increases in oxygen -depletion events, seaweed, stinging nettles, and brown tide. The scale of the estuary and the scope of the problems within it necessitate a multidisciplinary approach that includes characterizing its physical characteristics (for example, depth, magnitude and direction of tidal currents, distribution of seafloor and subseafloor sediment) and modeling how the physical characteristics interact to affect the estuary's water quality. Scientists from USGS Coastal and Marine Geology Program offices in Woods Hole, Massachusetts, and St. Petersburg, Florida, began mapping the sea floor of the Barnegat Bay-Little Egg Harbor estuary in November 2011 and completed in September 2013. With funding from the New Jersey Department of Environmental Protection and logistical support from the USGS New Jersey Water Science Center, they collected data with a suite of geophysical tools, including swath bathymetric sonar for measuring sea floor depth, a sidescan sonar for collecting acoustic-backscatter data (which provides information about sea floor texture and sediment type), subbottom profiler for imaging sediment layers beneath the floor of the estuary, and sediment samples with bottom photographs for ground validation of the acoustic data. More information about the four surveys that were part of this project can be found at the USGS Woods Hole Coastal and Marine Science Center Field Activity web pages: 2011-041-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2011-041-FA 2012-003-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2012-003-FA 2013-014-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2013-014-FA 2013-030-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2013-030-FA Purpose: The purpose of this bathymetric grid is to establish baseline bathymetry of the Barnegat Bay Estuary for regional, broad-scale analysis and to support higher resolution surveys in the future. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20111101 Ending_Date: 20130916 Currentness_Reference: ground condition of individual surveys during bathymetry collection: 20111101-20111107; 20120321-20120408; 20130313-20130326; 20130911-20130916. Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -74.328763 East_Bounding_Coordinate: -74.035580 North_Bounding_Coordinate: 40.095467 South_Bounding_Coordinate: 39.463621 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:e2442e04-4360-4135-8fca-a536ed50529b Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: St. Petersburg Coastal and Marine Science Center Theme_Keyword: RV Rafael Theme_Keyword: Bathymetry Theme_Keyword: Marine Geology Theme_Keyword: Interferometric Sonar Theme_Keyword: SWATHplus-H Theme_Keyword: ArcGIS Raster Theme_Keyword: Esri binary grid Theme_Keyword: field activity serial number 2011-041-FA Theme_Keyword: field activity serial number 2012-003-FA Theme_Keyword: field activity serial number 2013-014-FA Theme_Keyword: field activity serial number 2013-030-FA Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: bathymetry Theme_Keyword: sea-floor characteristics Theme_Keyword: interferometric sonar Theme_Keyword: marine geophysics Theme_Keyword: geospatial datasets Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: United States of America Place_Keyword: State of New Jersey Place_Keyword: Barnegat Bay Place_Keyword: Metedeconk River Place_Keyword: Mantoloking Place_Keyword: Toms River Place_Keyword: Forked River Place_Keyword: Barnegat Inlet Place_Keyword: Tuckerton Place_Keyword: Little Egg Harbor Place_Keyword: Little Egg Inlet Stratum: Stratum_Keyword_Thesaurus: none Stratum_Keyword: sea floor Stratum_Keyword: seafloor Temporal: Temporal_Keyword_Thesaurus: none Temporal_Keyword: 2011 Temporal_Keyword: 2012 Temporal_Keyword: 2013 Access_Constraints: none Use_Constraints: These data are not for navigational use. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: bbbath2m.jpg Browse_Graphic_File_Description: Thumbnail image of bathymetry collected with Barnegat Bay, NJ. File is located in the compressed zip file Browse_Graphic_File_Type: JPEG Data_Set_Credit: Please recognize the U.S. Geological Survey (USGS) as the source of this information. Native_Data_Set_Environment: Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095 Data_Quality_Information: Logical_Consistency_Report: Each line used to produce this grid has been reviewed and edited to remove inaccurate soundings. Completeness_Report: This grid does not include all bathymetric data collected within the Barnegat Bay Survey area. Data collected along some transit lines, and seismic-reflection tie lines were excluded from this grid. The "Grid" attribute in BarnBayBathTrks.shp (http://pubs.usgs.gov/ds/0937/downloads/shapefile/BarnBayBathTrks.zip) record the lines used to generate this grid. Data Gaps exist between adjacent lines. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Two different navigation systems (DGPS and RTK) were used to record horizontal positions of the bathymetric sonar. 2011-041-FA and 2013-014-FA: Differential Global Positioning System (DGPS) navigation was used to determine the horizontal position (x, and y coordinates) of the GPS antenna mounted above the SWATHplus-H transducers with sub-meter accuracy. A motion reference unit (Coda Octopus F180) was mounted directly above the sonar transducers and continuously measured vertical displacement (heave) and attitude (pitch and roll) of the vessel during data acquisition. Horizontal offsets between navigation and attitude antennas and the SWATHplus-H transducers were recorded and applied during acquisition in the configuration files for the Swath Processer and Coda Octopus software. Differential corrections were obtained real-time via the Wide Area Augmentation System (WAAS) providing horizontal accuracy of 1-2 meters. 2012-003-FA and 2013-030-FA Real Time Kinematic (RTK) navigation was used to determine the horizontal position (x, and y coordinates) of the GPS antenna mounted above the SWATHplus-H transducers with sub-meter accuracy. A RTK-enabled motion reference unit (Coda Octopus F190) was mounted directly above the sonar transducers and continuously measured vertical displacement (heave) and attitude (pitch and roll) of the vessel during data acquisition. Horizontal offsets between navigation and attitude antennas and the SWATHplus-H transducers were applied during acquisition in the configuration files for the Swath Processor and Coda Octopus software. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: A motion reference unit was mounted directly above the sonar transducers and continuously measured vertical displacement (heave) and attitude (pitch and roll) of the vessel during data acquisition. A Coda Octopus F180 motion reference unit was used for survey 2011-041-FA and 2013-014-FA. During surveys 2012-003-FA and 2013-030-FA a Coda Octopus F190 was used. Vertical offsets between navigation and attitude antennas and the SWATHplus-H transducers were applied during acquisition in the configuration files for the Swath Processor and Coda Octopus software. Vertical accuracy of the raw data may approximate 1 percent of water depth, based on SWATHplus interferometric sonar system specifications, which translates to 0.1 to 0.23 meters within the Barnegat Bay survey area. Real Time Kinematic (RTK)-GPS was used to continuously measure changes in sea-surface elevations relative to the North American Vertical Datum(NAVD 88) with decimeter-scale accuracies. Tide-correction was applied during post-processing (see process steps). Refraction artifacts were minimized by sound velocity profiles throughout the survey area to model the spatial and temporal variability of sound velocity structure of the water column. Changes in vessel draft due to fuel and water usage were not considered. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: Unpublished Material Title: raw SWATHPlus sxr files Geospatial_Data_Presentation_Form: raster digital data Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20111101 Ending_Date: 20130916 Source_Currentness_Reference: ground condition of individual surveys during bathymetry collection: 20111101-20111107; 20120321-20120408; 20130313-20130326; 20130911-20130916. Source_Citation_Abbreviation: Raw SXR files Source_Contribution: SONAR CONFIGURATION: Bathymetry data were acquired using a Systems Engineering and Assessment Ltd (SEA) SWATHplus-H interferometric sonar operating at a frequency of 468 kHz. The sonar transducers were mounted on a rigid pole installed on the bow of the R/V Rafael and was deployed at a depth of 0.7 m below the water line while collecting data. Typical sonar operating parameters include a transmit power of 60%, a transmit length of 34 or 43 cycles, and a sample rate of 4096 samples per channel. SPEED OF SOUND; sound velocity profiles were collected approximately every two hours, or when water properties changed using a hand-deployed sampler. Sound velocity data within the water column was measured using AML Oceanographic SVP Plus profiler during surveys 2011-041-FA and 2012-003-FA, and an AML Oceanographic MINOS-X profiler during 2013-014 and 2013-030. TIDES: Soundings were referenced to the North American Vertical Datum of 1988 (NAVD 88) using 1-minute averaged RTK-GPS sea-surface elevation data. Process_Step: Process_Description: Step 1:Process GPS Tides Data for all four surveys: Depths were corrected to North American Vertical Datum of 1988 (NAVD88)) using the 1 second RTK-GPS heights from the GPS receiver mounted over the SWATHplus-H sonar head. Two scripts were used to extract the navigation and described below: Script "getNovatelTides": extracts the "TID" record from each Hypack line file "parseHypackNovatelTides.awk": calculates the average TID value for every two minutes. Each day was appended to a master tide file in CARIS format ("SurveyName"Master.tid) and merged into the line files in Processing Step #3 below. Process_Date: 2013 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Step 2: Raw to processed conversion for all four surveys. Each raw SWATHplus bathymetric sonar file (*.sxr) was converted to a SWATHplus processed file (*.sxp) using Swath Processor software (v. 3.07). During the conversion process, sound velocity profiles were applied for the speed of sound within the water column and bathymetric filters were applied. Process_Date: 2013 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Step 3: SWATHplus to CARIS HIPS Conversion: A new CARIS HIPS project (v. 7.2) was created for each of the four surveys with projection information set to Universal Transverse Mercator (UTM) Zone 18 North, WGS 84. Each processed file (*.sxp) was imported to the new HIPS project using the import/conversion wizard. The line files for each day were merged with the Mastertide file (SurveyNameMasterTide.tid) to reference each line to NAVD 88. A 2-meter Bathymetric and Statistical Error (BASE) surface was created from the files for each day. The BASE surface for each day was reviewed for an inconsistencies or data anomalies. Navigation was edited as need using the navigation editor tool in HIPS. Filters were applied to each line including beam-to-beam slopes (1 degree) and an across track distance of 3-4 times water depth. For a nadir depth of 3 meters an across track filter of 3 times water depth would reduce the swath coverage to 9 meters on each side for a total swath coverage of 18 meters. Process_Date: 2013 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Step 4. Final surface creation. Survey lines for each Julian Day were reviewed using HIPS Swath Editor, finalized, and added to the surface for each of the four surveys. Output surfaces: 2011_041_2m.csar, 2012_003_2m.csar, 2013_014_2m.csar, 2013_030_2m.csar. Surfaces were combined in CARIS Base Editor (v. 4.0) using the "combine" tool and "Data Start Date is least" rule for overlapping cells. This rule condition means that earlier (pre- hurricane Sandy) surveys have importance over later surveys where they may overlap. Final output surface= BarnBayOFR2m.csar. This surface was then converted to an ascii raster (bbofrbath2m.asc) using the "export surface to Esri ASCII Raster" tool within Base Editor (v. 4.0). Ascii file was then imported to ArcGIS (v. 9.3.1) using the "ASCII to Raster" tool within the Conversion toolbox to produce the final 32-bit floating point grid (bbbath2m). Process_Date: 20140128 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Step 5. Changed incorrect data download links in the Online_linkage and Network_Resource_Name sections Process_Date: 20160607 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: USGS Thesaurus keywords added to the keyword section. Process_Date: 20180720 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 Process_Step: Process_Description: Crossref DOI link was added as the first link in the metadata. Process_Date: 20191115 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 Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20200908 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: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 34955 Column_Count: 12235 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 18 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -75.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 2.000000 Ordinate_Resolution: 2.000000 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Resolution: 0.01 Altitude_Distance_Units: meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Bathymetric depth values in Esri ArcRaster format. Data values represent depth in meters referenced to the North American Vertical Datum of 1988 (NAVD88). Depth range min: -22.30, max:-0.57. Entity_and_Attribute_Detail_Citation: Esri Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Electronic_Mail_Address: bandrews@usgs.gov Resource_Description: bbath2m.zip: Folder that contains the Esri binary grid bbbath2m which requires the grid folder and the associated info folder, bbbath2m.jpg browse graphic, and the associated FGDC metadata. Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm 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: AIG Format_Version_Number: ArcGIS 9.3.1 Format_Specification: Arc/Info Binary Grid Format_Information_Content: This WinZip (v. 14.0) file contains a bathymetric grid of Barnegat Bay, NJ and metadata. File_Decompression_Technique: Use WinZip or pkUnzip Transfer_Size: 20 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/ds/0937/downloads/raster/bathymetry/bbbath2m.zip Access_Instructions: Data can be downloaded using the World Wide Web (WWW) Fees: none Technical_Prerequisites: The grid contained in the .zip file is available as an Esri binary grid. To utilize this data, the user must have a GIS software package capable of reading an Esri binary grid. Metadata_Reference_Information: Metadata_Date: 20240318 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Contact_Instructions: The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318) Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time