U.S. Geological Survey 2015 1.0 vector digital data Data Series 937 Woods Hole Coastal and Marine Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program https://doi.org/10.3133/ds937 http://pubs.usgs.gov/ds/0937/downloads/shapefile/BarnBayBathTrks.zip Brian D. Andrews Jennifer L. Miselis William W. Danforth Barry J. Irwin Charles R. Worley Emile M. Bergeron Dann S. Blackwood 2015 1.0 Data Series 937 Reston, VA U.S. Geological Survey http://dx.doi.org/10.3133/ds937 http://pubs.usgs.gov/ds/0937/ 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 cooperation 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 seafloor 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 seafloor depth, a sidescan sonar for collecting acoustic-backscatter data (which provides information about seafloor texture and sediment type), and a subbottom profiler for imaging sediment layers beneath the floor of the estuary. 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 The purpose of these data are to manage the location and filenames of the approximately 2,164 kilometers of bathymetry files collected by the USGS in Barnegat Bay, New Jersey. 20111101 20130916 ground condition of individual surveys during bathymetry collection: 20111101-20111107; 20120321-20120408; 20130313-20130326; 20130911-20130916. Complete None planned -74.318604 -74.049521 40.089499 39.468328 USGS Metadata Identifier USGS:3e2a4d6a-2af3-4a73-8923-fade324e22b4 none U.S. Geological Survey USGS Coastal and Marine Geology Program Woods Hole Coastal and Marine Science Center RV Rafael Bathymetry Marine Geology Interferometric Sonar SWATHplus-H polyline shapefile field activity serial number 2011-041-FA field activity serial number 2012-003-FA field activity serial number 2013-014-FA field activity serial number 2013-030-FA ISO 19115 Topic Category oceans location USGS Thesaurus navigational data marine geophysics geospatial datasets Geographic Names Information System (GNIS) United States of America State of New Jersey Barnegat Bay Metedeconk River Mantoloking Toms River Forked River Barnegat Inlet Tuckerton Little Egg Harbor Little Egg Inlet none 2011 2012 2013 none none Brian Andrews U.S. Geological Survey Geographer mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 USA 508-548-8700 x2348 508-457-2310 bandrews@usgs.gov BarnBayBathTrks.jpg Image of tracklines along which bathymetry was collected with Barnegat Bay, NJ. File is located in the compressed zip file. JPEG Please recognize the U.S. Geological Survey (USGS) as the source of this information Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095 Navigation was checked for consistency and any erroneous points were removed during processing. Duplicate names may exist for the "LineName" attribute; however a further query of the data by the "Survey" attribute will produce unique tracklines for each record in this spatial dataset. Navigation data from all survey lines processed in CARIS HIPS are included in this spatial dataset. Two different navigation systems (DGPS and RTK) were used to record horizontal positions of the bathymetric sonar because RTK system was not available for all four surveys. 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 applied during acquisition in the configuration files for the SWATHplus-H and Coda Octopus F180 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 SWATHplus-H and Coda Octopus F190 software. U.S. Geological Survey Unpublished Material digital data disc 20111101 20130916 ground condition of individual surveys during bathymetry collection: 20111101-20111107; 20120321-20120408; 20130313-20130326; 20130911-20130916 raw sxr files SONAR CONFIGURATION: Bathymetry data were acquired using 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. Step 1: Raw to Processed Conversion: Navigation information is recorded and stored within each SWATHplus raw (sxr) data file and converted to a processed file (sxp) using SEA Swath Processor software (v. 3.07). Data were converted during each survey in the year 2011, 2012, and 2013. 2013 Brian Andrews U.S. Geological Survey Geographer mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 USA 508-548-8700 x2348 508-457-2310 bandrews@usgs.gov Step 2: CARIS Processing: A new Computer Aided Resource Information System (CARIS) Hydrographic Information Processing System (HIPS) project (v. 7.2) was created for each of the four surveys with projection information set to Universal Transverse Mercator (UTM) Zone 18, WGS 84. Each SWATHplus processed file (sxp) was imported to the new CARIS project using the Import/Conversion Wizard. Navigation was checked and edited as needed using the Navigation Editor tool.Data were processed during each survey in the year 2011, 2012, and 2013. 2013 Brian Andrews U.S. Geological Survey Geographer mailing and physical address

384 Woods Hole Rd

Woods Hole MA 02543-1598 USA 508-548-8700 x2348 508-457-2310 bandrews@usgs.gov Step 3: Convert CARIS Tracklines to a shapefile: The tracklines in the separate CARIS projects were converted to an Esri shapefile during a two-step process. First the CARIS tracklines were converted to a CARIS Map (.des) using the export tool within HIPS "HIPS to CARIS Map" Input File: All lines in the HIPS project. The "Export Track Lines" option was checked. Output File: "SurveyName"BathTrks.des Second, using CARIS Conversion Utility (v. 2.1) The CARIS Map (.des) file was converted to an Esri shapefile. During the conversion the name of the HIPS line file "Source" and "Day" were carried over to the shapefile. Input File: "SurveyName"BathTrks.des Output File: "SurveyName"BathTrks.shp. 20140128 Step 4. Add Attributes to each survey shapefile: The following string attributes were added to each of the four trackline shapefiles by using the context menu within ArcCatalog (v. 9.3.1). "JDay", "Survey", and "LineName" The JDay was derived from the "Day" attribute, and "LineName" was derived from the "Source" attribute from CARIS. Deleted the "Day" and "Source" attributes once calculation was complete. 2013 Brian Andrews U.S. Geological Survey Geographer mailing and physical address

384 Woods Hole Rd

Woods Hole MA 02543-1598 USA 508-548-8700 x2348 508-457-2310 bandrews@usgs.gov Step 5. Merge into a File Geodatabase feature class. The four separate bathymetric tracklines from each of the three surveys ("SurveyName"BathTrks.shp) were merged into one feature class (BarnBayBathTrks) using the "Merge" Tool in ArcToolbox (v. 9.3.1). 201403 Brian Andrews U.S. Geological Survey Geographer mailing and physical address

384 Woods Hole Rd

Woods Hole MA 02543-1598 USA 508-548-8700 x2348 508-457-2310 bandrews@usgs.gov Step 6: Add "Grid" attribute and populate with lines used for final bathymetry grid http://pubs.usgs.gov/ds/0937/downloads/raster/bbbath2m.zip. Created new field using the "add field" context menu in ArcMap (v. 9.3.1). Populated the new field "Grid" by manually selecting lines that were not used in the final grid (bbbath_2m) and then using the context menu "Field Calculator" to add "no" to those selected lines. Used the "Switch Selection" menu to select all lines that were used for the final grid and populated those selected records with "yes" using same method as above. The lines included in the "bbtl2m" grid are included in the metadata for that data set. 20140414 Brian Andrews U.S. Geological Survey Geographer mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 USA 508-548-8700 x2348 508-457-2310 bandrews@usgs.gov Step 7: Convert to Shapefile. The final feature class of all bathymetry tracklines were converted to a shapefile using the "export to shapefile (single" context menu within ArcCatalog (v. 9.3.1). Input file: BarnBayBathTrks (FC), output file: BarnBayBathTrks.shp. During the conversion process the data were projected from the UTM Zone 18 WGS 84 coordinate system to the Geographic Coordinate System of 1984 (WGS 84). 20140414 Brian Andrews U.S. Geological Survey Geographer mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 USA 508-548-8700 x2348 508-457-2310 bandrews@usgs.gov USGS Thesaurus keywords added to the keyword section. 20180720 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Crossref DOI link was moved to the first link in the metadata. 20191115 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Added keywords section with USGS persistent identifier as theme keyword. 20200908 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Vector String 1084 0.000001 0.000001 Decimal degrees D_WGS_1984 WGS_1984 6378137.000000 298.257224 BarnBayBathTrks SWATHplus bathymetry tracklines collected in Barnegat Bay, NJ. USGS FID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. JDay The Julian Day the data were collected where Julian day is the integer number representing the interval of time in days since January 1 of the year of collection. USGS 72 311 Survey Woods Hole Coastal and Marine Science Center Field Activity Number. For example, the Field Activity number 2011-041-FA:where the first 4 characters are the year of the survey (2011), followed by the sequential number of the survey (041), followed by "FA" for Field Activity. USGS Character set. Shape_Leng Length of each feature in meters (UTM 18 WGS 84), automatically calculated in the feature class before exporting to shapefile USGS 0.85 14865.89 0.1 Grid Attribute records whether the data were used in the final bathymetric grid published in this report. "Yes" means this line is a source for the grid bbbath2m http://pubs.usgs.gov/ds/0937/downloads/raster/bbbath2m.zip, "no" mean it was not used in the bbbath2m grid USGS Character set. LineName Name of the survey line and corresponding raw data file that was collected along that line. For example "L123F2" is survey line (L) 123, File2 (F2) USGS Character set Brian Andrews U.S. Geological Survey Geographer mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543 USA 508-548-8700 x2348 bandrews@usgs.gov BarnBayBathTrks.zip: contains BarnBayBathTrks.shp and the associated shapefile files, BarnBayBathTrks.jpg browse graphic, and the associated FGDC metadata. 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. shapefile ArcGIS 9.3 Esri polyline shapefile WinZip (v. 14.0) file contains survey tracklines for SWATHplus bathymetry collected in Barnegat Bay, NJ and associated metadata. Use WinZip or pkUnzip 100.962 http://pubs.usgs.gov/ds/0937/downloads/shapefile/BarnBayBathTrks.zip http://pubs.usgs.gov/ds/0937/ Data can be downloaded using the World Wide Web (WWW) none This zip file contains data in shapefile format. The user must have software capable of uncompressing the WinZip file and displaying the shapefile. 20240318 Brian Andrews U.S. Geological Survey Geographer mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 USA 508-548-8700 x2348 508-457-2310 whsc_data_contact@usgs.gov The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318) FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time