2019-04-19LCDR Mark Blankenship, CO/FHChief of Party2019-04-19LT John R. Kidd, OPS/FHField Operations OfficerAs Chief of Party, field operations for this hydrographic survey were conducted under my direct supervision, with frequent personal checks of progress and adequacy. I have reviewed the attached survey data and reports.All field sheets, this Descriptive Report, and all accompanying records and data are approved. All records are forwarded for final review and processing to the Processing Branch.The survey data meets or exceeds requirements as set forth in the NOS Hydrographic Surveys Specifications and Deliverables, Field Procedures Manual, Letter Instructions, and all HSD Technical Directives. These data are adequate to supersede charted data in their common areas. This survey is complete and no additional work is required with the exception of deficiencies noted in the Descriptive Report.Data Acquisition and Processing Report2019-03-20Atlantic Hydrographic BranchMultibeam Echo Sounder BackscatterMultibeam Echo SounderAny revisions to the Descriptive Report (DR) applied during office processing are shown in red italic text. The DR is maintained as a field unit product, therefore all information and recommendations within this report are considered preliminary unless otherwise noted. The final disposition of survey data is represented in the NOAA nautical chart products. All pertinent records for this survey are archived at the National Centers for Environmental Information (NCEI) and can be retrieved via https://www.ncei.noaa.gov/. Products created during office processing were generated in NAD83 UTM 17N, MLLW. All references to other horizontal or vertical datums in this report are applicable to the processed hydrographic data provided by the field unit.metersUniversal Transverse Mercator (UTM)LCDR Mark Blankenship, NOAA2018-08-06Basic Hydrographic SurveyNavigable Area2018-09-272018-09-06Eastern2018OPR-G343-FH-18NOAA Ship FERDINAND R. HASSLERNortheast FloridaApproaches to Jacksonville, FLUnited States114NM East of Amelia Island40000FloridaH13131NOAAComplete Coverage requirements were met for data acquisition on the entirety of the H13131 survey area as specified in the 2018 HSSD.This survey was conducted northeast of the entrance to Jacksonville, approximately 14 nautical miles offshore of Amelia Island, FL. Data were acquired to the survey limits in accordance with the requirements in the Project Instructions and the 2018 Hydrographic Surveys Specifications and Deliverables (HSSD).file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_SurveyLimits.jpgH13131 survey extents with respect to survey limits.30.5016881.044130.627981.1699All MBES data were acquired to Complete Coverage requirement as specified in the 2018 HSSDThe entire survey is adequate to supersede previous data.3300502018-09-062018-09-072018-09-082018-09-092018-09-102018-09-232018-09-242018-09-252018-09-27000933.0000011.15.7000921.9000053.7S25000011.1000002702Maintaining maritime commerce to the Port of Jacksonville is critical for the economic vitality and security of the region. In 2013, shipping activity directly provided over 9,600 jobs and either induced or indirectly produced more than 14,000 more amounting to an estimated $1.8 billion in personal wages. In 2016, more than 18 million tons of waterborne commerce and almost 800,000 containers moved through the port. As well, the Naval Station Mayport, home of the Navy’s 4th Fleet is located near the mouth of the St. Johns River and provides for national defense and brings an additional 17,000 military and civilian jobs to the region. To accommodate anticipated growth, the harbors undergoing a greater than $700 million expansion project which will widen the river channel and turning basin, deepening them from 40 to 47 feet to support fully-loaded new Panamax class vessels. To assure adequate underkeel clearance for these deeper draft vessels, this survey will provide modern bathymetry to update 1970s vintage surveys in the approaches to the harbor. The data acquired will supersede Coast Survey charts and products, improving maritime safety and enhancing the regional economy and protecting the environment. Survey data from this project is intended to supersede all prior survey data in the common area. All waters in survey areaComplete Coverage (refer to HSSD Section 5.2.2.3)All waters in survey areaAll MBES acquisition requires backscatter (refer to HSSD Section 6.2)Survey coverage was in accordance with the requirements listed above and in the HSSD.Ellipsoidally Referenced SurveyVDatum_Sep-shapefile_xyNAD83_geoid12b.csarERS via VDATUMNorth American Datum 1983Projected UTM 17NAll data for survey H13131 have been reduced to Mean Lower Low Water (MLLW) using documented VDatum techniques documented in the DAPR. The 'Ferdinand R. Hassler' is equipped with Applanix POS/MV position and orientation systems on the port and starboard hulls. Correctors are derived using a Precise Point Positioning (PPP) approach. The POS/MV data was post-processed in Applanix POSPac MMS using the Applanix RTX service to produce Smoothed Best Estimates of Trajectory (SBETs) and RMS uncertainty files using the method of Post Processed Precise Point Positioning (5P). Additional information discussing the vertical or horizontal control for this survey can be found in the accompanying DAPR.file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_VR_Density.pngH13131 Data density of the VR finalized surfacefile:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_VR_TVU.pngH13131 Total Vertical Uncertainty in the VR finalized surface25.7914.16NOAA_VRH13131_MB_VR_MLLWVariable ResolutionCARIS VR Surface (CUBE)Complete MBES25.7914.16NOAA_VRH13131_MB_VR_MLLW_FinalVariable ResolutionCARIS VR Surface (CUBE)Complete MBESA density analysis was run using the VR finalized surface to calculate the number of soundings per surface node. The results determined that greater than 99.5% of all nodes contained five or more soundings which meets the data density specifications. A TVU analysis was run using the VR finalized surface. The results determined that greater than 99.5% of nodes were within IHO allowable Total Vertical Uncertainty for Order 1a surveys.NOAA Profile Version 5.8QPSFledermaus - FMGT7.8.3CarisHIPS/SIPS10.4.4H13131 contains seven designated soundings in accordance with HSSD Section 5.2.1.2.3. Zero designated soundings represent DTONs, six designated sounding occurs over "New" features that are addressed in the Final Feature File, and one designated sounding occurs over a wreck within a fish haven addressed below.Designated SoundingsTo evaluate crossline agreement, two surfaces of 2-meter grid resolution were created; one from the crossline depths, the other from the mainscheme depths. These two surfaces were differenced and statistics generated using the Pydro Compare Surfaces tool and results reviewed in CARIS HIPS & SIPS. The statistical analysis of the differences between the mainscheme and crossline surfaces is shown below. The average difference between the surfaces is -0.01 meters with a standard deviation of 0.06 meters; 95% of nodes agree within +/- 0.10 meters of the mean.file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_crossline_coverage.pngH13131 Crossline Coveragefile:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/XL_stats.pngH13131 Crossline difference statistical analysisThere were no conditions or deficiencies that affected equipment operational effectiveness.None ExistDuring MBES acquisition a total of 89 casts were made with the MVP from the ship and 3 CTD profiles were made with launch 2702. The mean time taken between casts is 1 hr: 45 minutes with a standard deviation of 57 minutes. There is one period of 4hr 20 minutes between casts on DN 250, otherwise all casts were made within the 4 hr maximum allowed window. file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_SVP.jpgH13131 sound speed profile locations40000NOAA Ship FERDINAND R. HASSLER2017SH12978The minimum and maximum depth difference between H13131 and H12978 is -0.39 and 0.49 meters respectively. The average difference is -0.02 meters with a standard deviation of 0.08 meters; 95% of the differenced nodes are within +/- 0.15 meters of the mean. Junction overlap ranges from ~100m to ~300m.file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_minus_H12978_VR.pngDifference Surface Statistics for H13131 and H12978file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_minus_H12978_VR_junction.jpgJunction between H13131 and H12978file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_minus_H12978_VR_junction_zoom.jpgJunction between H13131 and H12978, zoomed. Differences shown indicate moving sand waves.40000NOAA Ship FERDINAND R. HASSLER2017SEH12979The minimum and maximum depth difference between H13131 and H12979 is -0.92 and 0.64 meters respectively. The average difference is -0.01 meters with a standard deviation of 0.04 meters; 95% of the differenced nodes are within +/- 0.08 meters of the mean. Junction overlap ranges from ~150m to ~400m.file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_minus_H12979_VR.pngDifference Surface Statistics for H13131 and H12979file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_minus_H12979_VR_junction_north.jpgJunction between H13131 and H12979, northern sectionfile:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_minus_H12979_VR_junction_South.jpgJunction between H13131 and H12979, southern section20000SAIC2009NEH12099The minimum and maximum depth difference between H13131 and H12099 is -0.41 and 0.32 meters respectively. The average difference is -0.07 meters with a standard deviation of 0.07 meters; 95% of the differenced nodes are within +/- 0.14 meters of the mean. Junction overlap ranges from ~80m to ~180m.file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_minus_H12099_4m.pngDifference Surface Statistics for H13131 and H12099file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_minus_H12099_4m_junction_new.jpgJunction between H13131 and H12099H13131 junctions with H12978 and H12979, which was acquired by the Ferdinand R. Hassler. H12978 was acquired in 2017 and H12979 is part of the current project. H13131 also junctions with prior survey H12099, conducted by SAIC in 2009. To evaluate junction agreement, the two surfaces were differenced and statistics generated using the Pydro Compare Surfaces tool and results reviewed in CARIS HIPS & SIPS. The statistical analysis of the differences between the mainscheme and crossline surfaces are reported below.file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_Junctions.jpgH13131 Junction OverviewSonar system quality control checks were conducted as detailed in the quality control section of the DAPR.There were no other factors that affected corrections to soundings.None ExistNA0.5S250110.52702NAAll equipment and survey methods were used as detailed in the DAPR.Raw Backscatter was recorded within the Reson .s7k files. Backscatter was processed in accordance with Hydrographic Technical Directive (HTD) 2018-3 using the QPS Fledermaus GeoCoder Toolbox software. file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_Backscatter_Coverage.jpgBackscatter coverage for H13131All data reduction procedures conform to those detailed in the DAPR.All sounding systems were calibrated as detailed in the DAPR.file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/Hassler_stern_bow_clean.pngNOAA Ship FERDINAND R. HASSLERfile:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/2702.jpgNOAA Ship FERDINAND R. HASSLER launch 270237.73.77S2508.40.762702NOAA Ship FERDINAND R. HASSLER (S250) and her launch 2702 acquired all soundings during operations for H13131.MBESSeaBat 7125 SV2Teledyne RESONSound Speed SystemMVP200ODIM Brooke OceanConductivity, Temperature, and Depth SensorMicro-CTDODIM Brooke OceanPositioning and Attitude SystemPOS MV 320 v5ApplanixSound Speed SystemSVP 70Teledyne RESONMBESSonic 2022R2SonicSound Speed SystemMiniSVSValeportConductivity, Temperature, and Depth SensorSBE 19plusSea-Bird ScientificRefer to the Data Acquisition and Processing Report (DAPR) for a complete description of data acquisition and processing systems, survey vessels, quality control procedures and data processing methods. Additional information to supplement sounding and survey data, and any deviations from the DAPR are discussed in the following sections.No ferry routes or terminals exist for this survey.No abnormal seafloor and/or environmental conditions exist for this survey.No submarine features exist for this survey.No overhead features exist for this survey.No present or planned construction or dredging exist within the survey limits.Shoreline was not assigned in the Hydrographic Survey Project Instructions or Statement of Work.No new surveys or further investigations are recommended for this area.No new insets are recommended for this area.No prior survey comparisons exist for this survey.No platforms exist for this survey.No Aids to navigation (ATONs) exist for this survey.No Maritime Boundary Points were assigned for this survey.Survey soundings from H13131 were generated from a variable resolution CUBE surface in CARIS HIPS and SIPS and compared with the soundings from the largest scale Electronic Navigational Charts using the QC Tools 2 triangle rule tool. Contours from H13131 were also generated and visually compared with the charted contours from the largest scale Electronic Navigational Charts. One (1) sounding was flagged by using the triangle rule that measured a difference of four (4) feet.file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_ChartComparison_Contours_North.jpgSurveyed contours (blue) as compared to largest scale ENC contours (red) - northern areafile:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_ChartComparison_Contours_south.jpgSurveyed contours (blue) as compared to largest scale ENC contours (red) - southern areafile:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_ChartComparison_TIN.jpgResults from PC Tools 2 'Triangle Rule' showing a 4-foot differenceNo shoals or potentially hazardous features exist for this survey. Two uncharted obstructions exist within the limits of H13131 and are addressed in the Final Feature File.Five (5) bottom samples were acquired as part of H13131 and are addressed in the Final Feature File.No channels exist for this survey. There are no designated anchorages, precautionary areas, safety fairways, traffic separation schemes, pilot boarding areas, or channel and range lines within the survey limits. All charted features were investigated as part of H13131 and are addressed in the Final Feature File. The feature located at position 30-34-21.0N 081-07-42.8W within the charted fish haven is charted with a 48-foot sounding. The least depth for this feature in H13131 is 68 feet, which has been designated in the finalized surface, and therefor does not require a sounding due to it being deeper than the authorized minimum depth of the charted fish haven of 50 feet. The hydrographer recommends deleting the 48-foot sounding.file:///Q:/Survey/H13131_G343_FH_18/AHB_H13131/01_SAR/Reports/Survey/Descriptive_Report/Report/H13131_FishHavenSounding.jpgCharted sounding within fish havenENC US4FL50M generally compares well with survey H13131. Surveyed soundings generally agree to within +/- two (2) feet as compared to currently charted depths.800002018-12-21false2018-12-2121US4FL50MENC US4GA11M generally compares well with survey H13131. Surveyed soundings generally agree to within +/- two (2) feet as compared to currently charted depths. It was noted that the extent of the Fish Haven that was delivered in the Project Reference File did not match the extent that is currently charted on both ENC and RNC. 800002018-12-10false2018-12-1036US4GA11M