OPR-J359-KR-18Vicinity of Apalachicola, FloridaCape San Blas, FloridaFugro Pelagos, Inc.H131542Complete coverage multibeam (MBES) with acoustic backscatterCentral Cape San Blas ShoalsFloridaUnited States400002018Dean R. MoylesNavigable Area2018-07-112018-09-092018-09-27Multibeam Echo SounderMultibeam Echo Sounder BackscattermetersUniversal Transverse Mercator (UTM) NAD83UTCAtlantic Hydrographic BranchContractorSurvey H13154 (Table 1) is located approximately 12 linear nautical miles southwest of the southern end of Cape San Blas, Florida. The R/V Acadiana acquired full coverage multibeam echosounder (MBES) and multibeam echosounder acoustic backscatter within the assigned survey limits from 9 September 2018 to 27 September 2018. All sounding data in this survey predates the arrival of Hurricane Michael. The storm, a high-end Category 4 hurricane, made landfall on October 10, 2018 in Mexico Beach, FL approximately 43 linear nautical miles North of the center of OPR-J359-KR-18. Fugro was forced to evacuate the area and abandon further operations until post-storm assessments could be made and the area reopened by local and federal authorities. With sustained winds of 155 mph, the area experienced severe damage to infrastructure and utilities. Given the significance of this weather event, a post-hurricane crossline data set was acquired by a new vessel (M/V Pelagos) on Julian Days: 322, 323, 338, and 340. The vessel used to acquire the reported soundings herein was unavailable post-storm. These new crosslines spanned the entire data set acquired prior to the hurricane within the sheet limits of H13153, H13154, H13155, and H13156. Due to the significant changes in surveyed depths, NOAA directed no further acquisition in these areas. This mandate directly affected crossline percentage to mainscheme acquisition quotas (Section B.2.1) and small data gaps that would have been achieved otherwise (Section A.4). For further reference, refer to Appendix II of this report. 29.5899372585.617405277829.430714277885.4303120833Survey H13154 location relative to overall sheet limits of OPR-J359-KR-18file:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/Overview.PNGSurvey limits were acquired in accordance with the requirements in the Project Instructions and the HSSD.The Vicinity of Apalachicola project will provide contemporary surveys to update National Ocean Service (NOS) nautical charting products. It is offshore of Apalachicola Bay and Joseph Bay, FL. The survey will provide updated bathymetry and feature data to address concerns of migrating shoals, thus reducing the risk to navigation within the project area. The Apalachicola Surveys delineate the western extent of the Big Bend Mapping project, a Florida Coastal Mapping Program (FCMaP) priority. This multi-year, multi-agency mapping project will fill in an area in which only 2% of the seafloor is mapped to modern standards. Improving the understanding of the bathymetry, geomorphology, bio-diversity and distribution of habitats in this region will support Floridian fisheries, coastal modeling, and resource management. The project will cover approximately 323 square nautical miles of high priority survey area identified in the latest iteration of NOAA HSD's risk based prioritization model. Data from this project will supersede all prior survey data providing modern hydrographic survey data for this area and updating the local charting products.The entire survey is adequate to supersede previous data.All waters in survey areaComplete coverage MBES with acoustic backscatterThree small coverage holidays exist along the sheet limits of H13154: 29-32-49.88N 085-36-35.28W 29-30-32.22N 085-36-18.09W 29-29-14.42N 085-33-04.41W Junction survey H13155 provides overlapping soundings into the sheet limits of H13154, covering these gaps. Survey H13154 full coverage MBESfile:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/H13154_Full_MBES_Coverage.PNGR/V Acadiana01173.690000051.46001173.690000051.4604.38700044.032018-09-092018-09-102018-09-112018-09-122018-09-132018-09-142018-09-152018-09-162018-09-172018-09-182018-09-192018-09-212018-09-222018-09-262018-09-272018-12-042018-12-06Refer 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.R/V Acadiana574.5R/V Acadiana acquired multibeam echosounder, acoustic backscatter, surface sound velocity, sound velocity profiles, attitude and positioning data within the survey limits of H13154. For a detailed listing of equipment used to acquire survey data, refer to the DAPR submitted with this report under Project Reports. Teledyne RESONSeaBat 7125 SV2MBESTeledyne RESONSVP 70Sound Speed SystemTeledyne OceanscienceUnderway CTDConductivity, Temperature, and Depth SensorAML OceanographicSV&PSound Velocity and Pressure SensorApplanixPOS MV 320 v5Positioning and Attitude SystemFor a detailed listing of equipment, refer to the DAPR submitted with this report. Crosslines for survey H13154 were acquired in accordance with sections 5.2.4.2 of the HSSD 2018. Of the 10,027,125 nodes compared between H13154 mainscheme MBES and MBES crosslines, all are within 1m difference. The mean difference is 0m, with a standard deviation of 0.1m. The upper limits of difference occur along the peaks of sand waves, which are known to shift in the survey area. H13154 mainscheme MBES differenced to crossline statistical outputfile:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/XL_MS_dif.PNG0.10.101ERS via VDATUMAcadiana0.993N/A0.25Survey H13154 uncertainty values were evaluated both in CARIS HIPS and SIPS and via Pydro QC tools v2.7.5. Both the 1m (Figure 4) and 2m (Figure 5) finalized grids meet uncertainty standards with 99.5% of nodes exceeding minimum requirements. H13154 1m finalized grid TPU QCfile:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/H13154_MB_1m_MLLW_Final.QAv5.tvu_qc.pngH13154 2m finalized grid TPU QCfile:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/H13154_MB_2m_MLLW_Final.QAv5.tvu_qc.pngData from three contemporary junction surveys to H13154 are available at the time of this report. Survey data were compared by running a difference surface in CARIS HIPS and SIPS on finalized 1m surfaces for each survey (Figure 6). Junction surveys to H13154: H13155, H13153, and H13156file:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/All_JUNX.PNGH13155400002018R/V AcadianaSWOf 3,451,431 nodes differenced between survey H13154 and H13155, 100% agree within 0.3m. The minimum difference is -0.3m, the maximum difference is 0.3m with a mean of 0.1m and a standard deviation of 0.1m. Survey H13154 differenced to Survey H13155file:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/54_55_junx.PNGH13153200002018R/V AcadianaNEOf 2,846,421 nodes differenced between survey H13154 and H13153, the gross majority of soundings agree within 0.5m. The minimum difference is -1.6m, the maximum difference is 1.7m with a mean difference difference of 0.0m and a standard deviation of 0.2m. The largest differences were assessed for systematic error, but it is the opinion of the hydrographer that these differences are the result of sandwave movement. Survey H13154 differenced to Survey H13153file:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/54_53_Junx.PNGExample of shifting sandwave between Day 234 (purple) H13153 and Day 255 (green)H13154file:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/H13154_H13153_sw_shift.PNGH13156400002018R/V AcadianaNEOf 705,686 nodes differenced between survey H13154 and H13156, 100% agree within 0.5m. The minimum difference is -0.4m, the maximum difference is 0.3m with a mean difference of 0.0m and a standard deviation of 0.1m. Survey H13154 differenced to Survey H13156file:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/54_56_junx.PNGSonar system quality control checks were conducted as detailed in the quality control section of the DAPR.None ExistThere were no conditions or deficiencies that affected equipment operational effectiveness.None ExistThere were no other factors that affected corrections to soundings.Sound velocity profiles were acquired every two hours from the R/V Acadiana using either a Teledyne Oceanscience underway CTD, or an AML Sound Velocity & Pressure (SV&P) sensor.Refer to the DAPR for additional information.Temporal and geographic distribution of SVP casts within survey H13154file:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/SVP_54.PNGAll equipment and survey methods were used as detailed in the DAPR.All data reduction procedures conform to those detailed in the DAPR.All sounding systems were calibrated as detailed in the DAPR.All equipment and survey methods were used as detailed in the DAPR.Teledyne CARISHIPS & SIPS9.1.9QPSFMGT7.8.7NOAA Extended Attribute Files V5_7H13154_MB_1m_MLLW.csarCARIS Raster Surface (CUBE)18.0529.90NOAA_1mComplete MBESH13154_MB_1m_MLLW_Final.csarCARIS Raster Surface (CUBE)18.0520NOAA_1mComplete MBESH13154_MB_2m_MLLW.csarCARIS Raster Surface (CUBE)28.0729.89NOAA_2mComplete MBESH13154_MB_2m_MLLW_FinalCARIS Raster Surface (CUBE)21829.89NOAA_2mComplete MBESH13154_MBAB_2m_400kHzMB Backscatter Mosaic200N/AComplete MBESAdditional information discussing the vertical or horizontal control for this survey can be found in the accompanying HVCR.Mean Lower Low WaterERS via VDATUMJ359_Buffer1mi_xyNAD83-MLLW_geoid12b.csarNorth American Datum 1983Projected UTM 16A selected sounding set was made from both the finalized 1m and 2m grids with the following characteristics: shoal biased; 1 to 10,000mm at map scale; defined radius of 5. An overall sounding selection was created from charted soundings from ENCs US3GC05M, US4FL68M, and US4FL60M. The two were then compared with a minimum threshold of 1m survey soundings shoal to charted soundings using the Chart Review feature within Pydro QC tools (Figures 12 and 13). Changes most frequently ocur along the tops of sandwaves as they shift throughout the area. Surveyed soundings deeper than charted soundings were not analyzed. QC tools output instances of survey H13154 soundings shoal to charted soundings >1m.file:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/H13154_chart_comp.PNGQC tools output instances of surveyed soundings shoal to charted soundings >1m over survey H13154 area with ENC soundings TIN. file:///Z:/hydrograhy-noaa2018/05_Reporting/OPR-J359-KR-18/H13154/Processed/Reports/Survey/Descriptive_Report/Report/H13154_DR_Images/H13154_Chart_comps_grid.PNGUS3GC05M456394472018-09-132018-09-13falseUS4FL68M80000152018-01-032019-02-15falseUS4FL60M80000232019-02-142019-02-14falseNo Maritime Boundary Points were assigned for this survey.No charted features exist for this survey.No uncharted features exist for this survey.No shoals or potentially hazardous features exist for this survey.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.A total of 7 bottom samples were acquired within the sheet limits of survey H13154 per appendix H of the HSSD 2018. For a complete discussion, refer to the final feature file submitted with this report.Shoreline was not assigned in the Hydrographic Survey Project Instructions or Statement of Work.No prior survey comparisons exist for this survey.No Aids to navigation (ATONs) exist for this survey.No overhead features exist for this survey.No submarine features exist for this survey.No platforms exist for this survey.No ferry routes or terminals exist for this survey.Large shifting sandwaves exist in the survey area. These were investigated with respect to the relevance of the survey purpose noted in Section A.2.No present or planned construction or dredging exist within the survey limits.No new surveys or further investigations are recommended for this area.No new insets are recommended for this area.As 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.Dean R. MoylesChief of Party2019-04-08