OPR-W386-TJ-22 Approaches to Cleveland, OH Lake Erie NOAA Ship Thomas Jefferson (S222) H13683 15 5 NM Northeast of Presque Isle Pennsylvania United States 5000 2022 Matthew J. Jaskoski, CDR/NOAA Navigable Area 2022-08-02 2022-08-09 2022-08-14 Multibeam Echo Sounder Multibeam Echo Sounder Backscatter meters UTC Atlantic Hydrographic Branch Any 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, LWD - IGLD 1985. All references to other horizontal or vertical datums in this report are applicable to the processed hydrographic data provided by the field unit. CC0-1.0 (NOAA Field Units) CC0-1.0 https://creativecommons.org/publicdomain/zero/1.0/ https://creativecommons.org/publicdomain/zero/1.0/legalcode These data were produced by NOAA and are in the public domain within the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0). NOAA Survey H13683, located in Lake Erie within the sub locality of 5 NM Northeast of Presque Isle, PA, was conducted in accordance with coverage requirements set forth in the Project Instructions OPR-W386-TJ-22 (Figure 1). 42.297062 80.200821 42.200407000000006 80.065767 Survey layout for H13683, plotted over ENC US4PA21M. The black outline represent the geographical extents of the survey. The dashed yellow outline represents the survey limits set forth by the Project Instructions. MBES coverage shown in color. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/A.1_%20SurveyLimits.png Survey data were acquired in accordance with the requirements set forth by the Project Instructions (PI) and the 2022 Hydrographic Surveys Specifications and Deliverables (HSSD). Erie is Pennsylvania's primary port for accessing Lake Erie and the St. Lawrence Seaway. Erie, PA is occasionally used by container ships, tankers, barges, and other large shipping vessels. It also boasts a robust sailing and fishing community, scenic beauty, biodiversity, and historical connections. This area was identified as a statistically significant hotspot within the 2018 Hydrographic Health Model, a risk model that Coast Survey uses for evaluating priorities based upon navigational risk and the necessary quality of data to support modern traffic. The modern bathymetric survey in this area will not only identify hazards and changes to the lake bed, but will update National Ocean Service (NOS) nautical charting products and support Erie County's Lake Erie Quadrangle nomination for National Marine Sanctuary designation. https://www.sail-world.com/Australia/Erie-Pennsylvania-Small-place-big-boating/-127219? https://en.wikipedia.org/wiki/Economy_of_Erie,_Pennsylvania The entire survey is adequate to supersede previous data. Data acquired in H13683 meet multibeam echo sounder (MBES) coverage requirements for complete coverage, as required by the 2022 HSSD. This includes crosslines (see section B.2.1), NOAA allowable uncertainty (see Section B.2.10), and density requirements (see Section B.5.2). All waters in survey area. Complete Coverage (Refer to HSSD Section 5.2.2.3) All waters in survey area. Acquire backscatter data during all multibeam data acquisition (Refer to the HSSD Section 6.2) Survey coverage is in accordance with requirements listed in section 5.2.2 of the 2022 HSSD. Coverage requirements were met with 100% complete coverage MBES. One holiday exists outside of the sheet limits on the western edge of the sheet (Figure 2). An additional gap in coverage exists between the coverage achieved in H13683 and the assigned sheet limits, however it is not large enough to be classified as a holiday per specifications in the 2022 HSSD (Figure 3). Both of these gaps are fully covered by the adjacent contemporary survey H13670 and no features exist in those areas. Holiday outside of sheet limits, outlined in pumpkin, is centered around 42° 14' 13.81" N 080° 09' 52.74" W. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/A.4_Holiday.png Gap in coverage, outlined in arctic blue, is centered around 42° 15' 56.14" N 080° 11' 48.82" W. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/A.4_GapInCoverage.png S222 0.0 628.74 0.0 0.0 0.0 0.0 0.0 29.29 0.0 2903 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 629.75 0.0 0.0 0.0 0.0 0.0 29.29 0.0 4.65 3 0 0 0 16.91 2022-08-09 2022-08-10 2022-08-11 2022-08-12 2022-08-13 2022-08-14 Refer 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. S222 63.3 4.6 2903 8.5 1.2 NOAA Ship Thomas Jefferson file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.1_S-222.jpg Hydrographic Survey Launch 2903 file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.1_2903.png Positioning and Attitude System Applanix POS MV 320 v5 Conductivity, Temperature, and Depth Sensor AML Oceanographic MVP200 MBES Kongsberg Maritime EM 2040 MBES Backscatter Kongsberg Maritime EM 2040 Conductivity, Temperature, and Depth Sensor Sea-Bird Scientific SBE 19plus V2 Sound Speed System Teledyne RESON SVP 70 Sound Speed System Valeport Thru-Hull SVS Vessel configurations, equipment operations, data acquisition, and processing were consistent with specifications described in the DAPR. S222 collected 29.29 linear nautical miles of MBES crosslines, or 4.65% of mainscheme MBES data. The crosslines acquired represent good spatial and depth diversity for this survey area (Figure 6). A variable resolution Combined Uncertainty and Bathymetry Estimator (CUBE) surface of mainscheme data and a variable resolution CUBE surface of crossline data were differenced - the resulting mean was 0.02 m with a standard deviation of 0.07 m (Figure 7). Over 99.5% of nodes are compliant with fraction of allowable error standards (Figure 8). Visual inspection of the difference surface indicated no systematic issues. H13683 crossline fractional allowable error shown in color, overlaid onto survey data shown in greyscale. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.1_XL_Overview.png H13683 crossline and mainscheme comparison. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.1_XL_DepthStats.png H13683 fractional allowable error node distribution. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.1_XL_FracAllowErr.png ERS via VDATUM 0.0 0.045 S222 N/A 4 N/A 0.2 2903 4 N/A N/A 0.2 The bathymetric surface's uncertainty layer is compliant with 2022 HSSD uncertainty standards. Over 99.5% of all nodes pass uncertainty standards (Figure 9). H13683 uncertainty standards. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.2_UncertaintyStandards.png Survey H13683 junctions with H13611 and H13670 within the OPR-W386-TJ-22 project (Figure 10). H13683, in raspberry, along with junctioning sheets H13611, in lime, and H13670, in sherbet orange. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.3_JunctionOverview.png H13611 5000 2022 NOAA Ship Thomas Jefferson S Refer to survey H13611 Descriptive Report for junction analysis. H13670 40000 2022 NOAA Ship Thomas Jefferson W The eastern edge of H13683 junctions with sheet H13670. A variable resolution (VR) CUBE surface of H13683 data and a VR CUBE surface of H13570 data were differenced (Figure 11). The mean difference between bathymetric surface nodes was 0.00 m with a standard deviation of 0.06 m (Figure 12). Statistics and visual inspection indicate that surveys H13683 and H13670 are in general agreement. Fraction of allowable error surface difference comparison in color between H13683 and H13670. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.3_JunctionFracAllowErrImage.png H13683 and H13670 surface difference comparison statistics. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.3_JunctionDiffStats.png H13583 and H13670 fractional allowable error node distribution comparison stats. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.3_JunctionFracAllowErrStats.png Sonar system quality control checks were conducted as detailed in the quality control section of the DAPR. None Exist There were no conditions or deficiencies that affected equipment operational effectiveness. Thermal Stratification Thermal stratification is a persistent environmental condition encountered in the project area and was present for the duration for the survey. This stratification was identified in the MVP sound speed profiles (Figure 14) and resulted in varying degrees of refraction of the outer MBES swath. In locations where soundings were offset by a distance greater than the maximum allowable total vertical uncertainty (TVU), the data were rejected from being included in the bathymetric surface (Figure 15). The final delivered surfaces meet NOAA allowable vertical uncertainty parameters from the 2022 HSSD (Figure 9 - reference B.2.2 uncertainty figure). As such, the data remain sufficient to supersede previous data. Profiles from an MVP cast that represent typical conditions in the survey area. The strong thermocline in this cast similarly appears in most of the casts taken for this sheet. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.6_FactorsAffectingSoundings_SVPPlot.png 2D view of survey data showing downturn in the outer swath likely caused by sound speed issues. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.6%20Refraction%20Example.png MVP casts on S222 were conducted at an average interval of two hours, guided by observation of the surface sound speed and targeted to deeper areas. Cast frequency was increased in areas of greater depth where the thermocline could be fully measured. One static conductivity, temperature, and depth (CTD) cast was conducted prior to collecting holidays on Julian Day 226 using a Sea-Bird Seacat 19+ V2 CTD. All sound speed methods were used as detailed in the DAPR. A total of 60 sound speed profiles were collected as part of acquisition of H13683 and display good spatial diversity (Figure 16). Several casts taken in the southern end of the sheet were rejected for not reaching past the thermal stratification, resulting in refraction (Refer to section B.2.6 Factors Affecting Soundings). All sound speed profile data were concatenated into a master file for the sheet. MBES data were corrected by applying profiles nearest in distance in time (4 hours) using this master file. Overview of H13683 sound speed profile locations, plotted in carrot. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.2.7_CastLocations.png All 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. While HSL 2903 was used to acquire MBES data on H13683, only five lines were acquired to address holidays on the southern sheet edge. The 2m backscatter mosaic created from S222 data contains one holiday, so a mosaic was not created for the sparse 2903 data (Figures 17 and 18). However, the processed GSF files are included in the final deliverables package. 300 kHz backscatter mosaic from data acquired by S222 file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.4_S222Backscatter300kHz.png Holiday, outlined in cherry, within the backscatter mosaic from data acquired by S222. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.4_S222BackscatterHoliday.png NOAA Profile Version 2022 H13683_MB_VR_LWD CARIS VR Surface (CUBE) Variable Resolution 15.7 24.4 NOAA_VR Complete MBES H13683_MB_VR_LWD_Final CARIS VR Surface (CUBE) Variable Resolution 15.7 24.4 NOAA_VR Complete MBES H13683_MBAB_2m_S222_300kHz_1of1 MB Backscatter Mosaic 2 N/A Complete MBES Complete coverage requirements were met by 100% complete coverage MBES as specified under section 5.2.2.2 of the 2022 HSSD. All bathymetric grids for H13683 meet density requirements per the HSSD 2022 (Figure 19). There is one holiday and another data gap not large enough to meet the definition of a holiday for complete coverage requirements as discussed in Section A.4. H13683 data density standards. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/B.5.2_DensityStandards.png No Horizontal and Vertical Control Report (HVCR) is required for this survey. Low Water Datum IGLD-1985 ERS via VDATUM OPR-W386-TJ-22_NAD83_2011_VDatum_LWD_IGLD85 North American Datum 1983 Projected UTM 17 Trimble-RTX service was used with an Applanix POS MVv5 GNSS_INS system to obtain highly accurate ellipsoidally referenced position data to meet ERS specifications for H13683 MBES data from vessels HSL 2903 and S222. The Wide Area Augmentation System (WAAS) was used for real-time horizontal control during data acquisition on vessels HSL 2903 and S222. US4PA21M 80000 14 2021-10-15 2021-10-15 Surveyed soundings and contours were compared against previously charted data on ENC US4PA21M. Depth values were found to be in general agreement with previously charted soundings. The hydrographer believes the surveyed soundings do not pose a hazard to navigation. Three newly discovered features are included in the Final Feature File (FFF) and none were considered to be navigational hazards. No danger to navigation reports were submitted for this survey and all data acquired on H13683 are recommended to supersede prior data. No charted features exist for this survey. One uncharted feature was identified, investigated, and are recommended for charting. It is not considered dangerous to navigation (DTON) and no DTON reports were submitted for this survey. Reference the Final Feature File for further information. 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. No Aids to navigation (ATONs) exist for this survey. No Maritime Boundary Points were assigned for this survey. Four bottom sample locations were assigned for investigation (Figure 20). However, the hydrographer was only able to obtain samples from three locations. Details regarding bottom sample attribution can be found in the Final Feature File. H13683 bottom sample locations in lavender plotted over the 2m resolution backscatter mosaic. file:///Q:/OPR-W386-TJ-22/Surveys/H13683/01_HDR/Reports/Descriptive_Report/Report/Images/D.2.3_BottomSampleLocations.png 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. No abnormal seafloor or environmental conditions exist for this survey. 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 ENC scales 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. Matthew J. Jaskoski, CDR/NOAA Chief of Party 2022-09-23 Michelle M. Levano, LT/NOAA Field Operations Officer 2022-09-23 Erin K. Cziraki Chief Survey Technician 2022-09-23 Sarah G. Thompson Sheet Manager 2022-09-23