Navigable Area Habitat Mapping 2022 F00864 Ohio Pennsylvania Lake Erie Lake Erie Transects 10000 2022-08-16 2022-08-17 2022-07-08 OPR-W386-TJ-22 NOAA Ship Thomas Jefferson (S222) Matthew J. Jaskoski, CDR/NOAA MBES Kongsberg Maritime EM 2040 MBES Backscatter Kongsberg Maritime EM 2040 Atlantic Hydrographic Branch meters 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. North American Datum 1983 Low Water Datum IGLD-1985 VDatum Projected UTM 17 2022-11-08 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). This hydrographic survey was acquired in accordance with the requirements defined in the Project Instructions OPR-W386-TJ-22. Data collected during transit (East-West) was processed along with the required transect lines (North-South) (Figure 1). 42.341858333333334 82.53538333333333 41.46160277777778 80.26984444444444 Survey layout for F00864 overlaid on RNC 14820. The red outline represents the geographical extents of the survey. The dark green lines represent the MBES transect and transit lines. SupportFiles\F00864 Figure 1.png This survey supports research into the habitat of the zebra mussel, an invasive species. It aims to help determine the extent of the zebra mussel's coverage across the central basin of Lake Erie. The entire survey is adequate to supersede previous data. 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. The following vessel was used for data aquisition during this survey: S222 Length Overall: 63.4m Draft: 4.6m A sound speed profile was acquired at the beginning of each acquisition day and at least once every four hours thereafter. MVP casts on S-222 were collected approximately every hour and targeted to deeper areas of the sheet in order to fully sample the thermocline. All sound speed methods were used as detailed in the DAPR. A total of 16 sound speed profiles were collected as part of acquisition of F00864 and display good spatial diversity (Figure 2). 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. Additional information to supplement sounding and survey data, and any deviations from the DAPR are discussed in the following sections. F00864 Sound Speed Cast Locations SupportFiles\Figure xx F00846 Sound Speed Cast Locations.png The following survey specific parameters were used for this survey: Survey Specific Tide TPU values: - ERS via VDATUM measured: 0.0 meters - ERS via VDATUM zoning: 0.045 meters Survey Specific Sound Speed TPU Values for S222: -Measured MVP: 4 m/sec -Surface: 0.2 m/sec The bathymetric surface's uncertainty and density layers are compliant with the 2022 HSSD. Over 99.5% of all nodes pass uncertainty and density standards (Figures 3 and 4). Due to the nature of this survey, a crossline comparison was not required. F00864 uncertainty standards SupportFiles\F00864_MB_VR_LWD.QAv6.tvu_qc.png F00864 Data Density SupportFiles\F00864_MB_VR_LWD.QAv6.density.png US4MI11M 100000 22 2021-11-12 2022-07-27 US4OH01M 80000 18 2022-11-16 2022-11-16 US4OH02M 80000 11 2022-07-27 2022-07-27 US4OH04M 100000 8 2018-03-15 2020-05-15 US4PA20M 100000 7 2017-02-22 2020-05-15 US4PA21M 80000 14 2021-10-15 2022-03-31 F00864_MB_VR_LWD CARIS VR Surface (CUBE) Variable Resolution 10.9 25.3 NOAA_VR MBES Trackline F00864_MB_VR_LWD_Final CARIS VR Surface (CUBE) Variable Resolution 10.9 25.3 NOAA_VR MBES Trackline F00864_MBAB_2m_S222_300kHz_1of4 MB Backscatter Mosaic 2 N/A MBES Trackline F00864_MBAB_2m_S222_300kHz_2of4 MB Backscatter Mosaic 2 N/A MBES Trackline F00864_MBAB_2m_S222_300kHz_3of4 MB Backscatter Mosaic 2 N/A MBES Trackline F00864_MBAB_2m_S222_300kHz_4of4 MB Backscatter Mosaic 2 N/A MBES Trackline After multiple rounds of cleaning, a total of three fliers remain as detected by NOAA's QC Tool Flier Finder available in the Pydro CL-19 suite. The hydrographer reviewed the flagged nodes and considers them to be accurate representations of the lake bed. Refer to the DAPR for a complete description of vertical control procedures. Refer to the DAPR for a complete description of horizontal control procedures. 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 5) and resulted in varying degrees of refraction of the outer MBES swath. However, this refraction did not result in vertical displacement of soundings that was greater than the maximum allowable total vertical uncertainty (TVU) at any depth (Figure 6). The final delivered surfaces meet NOAA allowable vertical uncertainty parameters from the 2022 HSSD. As such, the data remain sufficient to supersede previous data. Surveyed soundings were compared against previously charted data on the ENCs. Depth values were found to be in general agreement with previously charted soundings, though some shallower soundings exist across the transect and transit lines. The hydrographer does not believe any surveyed soundings pose a hazard to navigation, but recommends charted soundings be updated to reflect the survey. Sound speed profiles from MVP casts that represent typical conditions in the survey area. SupportFiles\MVP Sound Speed Profiles Julian Days 228 229.png 2D view of survey data showing upturn in the outer swath likely caused by sound speed issues. 2D view exaggeration 19x. SupportFiles\Refraction.png 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 Survey Summary 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, Standing and 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 Survey Summary Report. Matthew J. Jaskoski, CDR/NOAA Chief of Party 2022-12-06 Sydney M. Catoire, LT/NOAA Field Operations Officer 2022-12-06 Erin K. Cziraki Chief Survey Technician 2022-12-06 Danielle H. Black Assistant Survey Technician 2022-12-06