158.30654127853.9555126944166.54575058359.6668651111Figure 1: D00215 Survey OutlineSupportFiles\D00215_Survey_outline.pngThis hydrographic survey was acquired in accordance with the requirements defined in the 2016 NOS Hydrographic Survey Specifications and Deliverables Manual (HSSD) Section 5.2.2.5.2 Reconnaissance Surveys. All requirements set forth in the NOAA Field Procedures Manual for Hydrographic Surveying (FPM) dated May 2014 and Hydrographic Survey Technical Directives (HTD) 2016-1 were met. Please reference Data Acquisition and Processing Report OSD-PHB-16_FISHPAC_DAPR for a complete description of data acquisition and processing systems, survey vessels, quality control procedures and data processing methods.The vertical datum for this project is Mean Lower Low Water. TCARI was the vertical control method used. A request for final tides was submitted on October 27, 2016. Final tides were received on November 14, 2016 with preliminary zoning accepted as final.See attached Tide Note dated November 14, 2016. TCARIUnalaska, AK9462620Port Moller, AK9463502Village Cove, AK9464212During real-time acquisition, S220 received correctors from the Wide Area Augmentation System (WAAS) for increased accuracies similar to USCG DGPS stations. WAAS was the sole method of positioning for survey D00215. No DGPS stations were available for realtime horizontal control.Wide Area Augmentation System (WAAS)Figure 2: D00215 NOAA Allowable Uncertainty StatisticsSupportFiles\D00215_Uncertainty _stats.pngFigure 3: D00215 Density StatisticsSupportFiles\D00215_Density _stats.pngFigure 4: D00215 4m Uncertainty StatisticsSupportFiles\D00215_MB_4m_MLLW_Final.tvu_qc.pngFigure 5: D00215 16m Uncertainty StatisticsSupportFiles\D00215_MB_16m_MLLW_Final_TVU_QC.pngTo verify that all data meet the accuracy specifications as stated in the HSSD, a child layer titled "NOAA_Allowable_1" was created for the 4 meter and "NOAA_Allowable_2" for the 16 meter finalized surfaces using the equations stated in Section C.2.1 of the DAPR. These surfaces were then analyzed using the Pydro Finalized CSAR QA tool. Figure 2 shows an overview of the NOAA Allowable Uncertainty layers in each of the surfaces. Figures 4 and 5 shows the statistics for each of the individual surfaces. It was found that at least 98% of nodes in the 4 meter and 16 meter grids meet or exceed NOAA Allowable Uncertainty specifications for all depths of survey D00215. Based on analysis from the CSAR QA tool, 94.14% of nodes have five or more soundings, exceeding the 80% requirement for set line spacing surveys as per HSSD 5.2.2.4 (Figure 3). For individual graphs per surface of uncertainty and density requirements, see the Standards Compliance Review in Appendix IIFigure 8: D00215 45 degree filtering due to numerous fliers caused by a heavy sea state.SupportFiles\D00215_Filtering.pngFigure 9: Holiday created due to changing collecting modes for the EM710.SupportFiles\Line_0308_DN240_NoData_1.pngFigure 10: DN234 and DN235 blow outs due to sea state and filtering of D00215.SupportFiles\DN234_Blowout.pngFairweather utilized the Freefall Cone Penetrometer (FFCPT) for taking sound speed casts as the instrument was the primary unit of sound speed data for the FISHPAC project. A stationary FFCPT and a SeaBird 19plus CTD were conducted once a day when weather and sea state allowed. Additionally, an FFCPT cast was preformed over each trawl station when the weather and sea state allowed safe operations. An FFCPT cast was preformed approximately every 3 hours, meeting the requirements per HSSD 5.2.2.5.2 for sound speed. Holidays Holidays exist in the delivered data due to the acquisition technique of this survey. The largest of which was created on DN240 when the Kongsberg EM710 stopped collecting data for approximately 11 minutes. This was due to the sonar having to switch ping modes from shallow to deep and then reacquire the bottom track, as seen in Figure 9. Sea State On DN234 and DN235, Fairweather encountered heavy seas that greatly affected data quality, causing numerous blowouts to occur, as seen in Figure 10. The trackline was modified from collecting data north and south to collecting data west and northeast to improve data quality in riding with the seas. Data was filtered to exclude all data 45 degrees off nadir for the entire survey to reduce noise and more accurately represent the seafloor, as shown in Figure 8. Backscatter Raw backscatter data were logged in the Kongsberg EM710 .all file. The data have been sent to the Pacific Hydrographic Branch for processing. One line per day of acquisition was processed by the field unit for quality control. This project, FISHPAC, was in support of NMFS to acquire high quality backscatter data for characterization of seafloor habitats. The survey is a survey of opportunity to update hydrographic data in the Eastern Bering Sea. The assigned trackline for the FISHPAC project is lacking in modern hydrographic data and the survey trackline is an opportunity to update outdated soundings. Due to D00215 lacking full seafloor coverage, in adequately charted areas only shoaler than charted depths were selected for application to charts during compilation. In areas where no charted soundings exist, new soundings were selected at chart scale regardless of depth values.Data from this survey is intended to supersede all prior survey data in the common area.The entire survey is adequate to supersede previous data.Data Acquisition and Processing Report (DAPR)2016-10-21The survey data meet or exceed requirements as set forth in the NOS Hydrographic Surveys and Specifications Deliverables Manual, Field Procedures Manual, Letter Instructions, and all HSD Technical Directives, except as noted in this Discriptive Report Summary. These data are adquate to supersede charted data in their common areas. This survey is complete and no additional work is required unless otherwise noted herein. 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.2016-12-02Chief of PartyCDR Mark Van Waes, NOAA2016-12-02Operations OfficerLT Bart Buesseler, NOAA2016-12-02Chief Survey TechnicianHCST Douglas A. Bravo2016-12-02Sheet ManagerENS Kathryn A. Richwine, NOAAA comparison was performed between survey D00215 and charts 16006 and 16011 as well as ENC US2AK5FM, US1WC04M, and US1B01M using CARIS HIPS and SIPS sounding layers derived from the 16 meter combined surface. The soundings were overlaid on the charts to assess differences between the surveyed soundings and the charted depths. Due to the nature of the trackline survey, the majority of the charted depths did not fall on the survey trackline. Many charted depths close to the trackline are consistent with the trend in the area. All data from D00215 should supersede charted data. In general, surveyed soundings agree within 3 fathoms of the majority of charted depths. A full discussion of the disagreements follows below. The charted depths of Chart 16006 and Chart 16011 are identical to those found on ENCs US2AK5FM, US1WC04M, and US1BS01M. All discussions regarding comparisons between surveyed soundings and charted depths are covered under the Chart 16006 and Chart 16011 discussions below. Soundings from D00215 are in general agreement with charted depths on Chart 16006, with most depths agreeing within 3 fathoms. The largest differences are seen in the southern portion of survey D00215 where differences range to more then 25 fathoms, as seen in Figure 6. Additional surveys in this area are recommended. Soundings from D00215 are in general agreement with charted depths on Chart 16011, with most depths agreeing within 3 fathoms. The largest differences are seen in the southern portion of survey D00215, with shoaler soundings ranging to 22 fathoms, as seen in Figure 7. Additional surveys in this area are recommended. The NOAA CUBE parameters defined in the HSSD were used for the creation of all CUBE surfaces in Survey D00215. The surfaces have been reviewed where noisy data, or "fliers," are incorporated into the gridded solutions causing the surfaces to be shoaler or deeper than the true sea floor. Where these spurious soundings cause the gridded surface to be shoaler or deeper than the reliably measured seabed by greater than the maximum allowable Total Vertical Uncertainty at that depth, the noisy data have been rejected by the Hydrographer and the surface recomputed. Flier Finder v3, part of the QC Tools package within Pydro, was used to assist the search for spurious soundings following the gross cleaning. Flier Finder was run multiple times for each surface, reducing the flier height value for each consecutive run. This allowed Flier Finder to accurately and quickly identify gross fliers, but as the flier height was reduced the effectiveness of the tool diminished. At this point, the hydrographer ceased using the tool and returned to manual cleaning. 392016-09-062016-08-2024152015-12102318816011372016-09-062016-08-2024112015-1215340761600614US2AK5FM10231882016-06-21false2016-08-1510US1WC04M35000002016-04-28false2016-09-168US1BS01M35000002016-04-15false2016-09-16Figure 6: Comparison of D00215 soundings as compared to Chart 16006 depths.SupportFiles\16006_Soundings.pngFigure 7: Comparison of D00215 soundings as compared to Chart 16011 depths.SupportFiles\16011_Soundings_shoaler.pngNew shoal survey sounding on chart 16305 (depths in fathoms)file:///M:/OSDPHB16-FISHPAC/Surveys/D00215/Compilation/Working/chart%201305.jpgBlank areas without soundings on Chart 13000 (depths in fathoms)file:///M:/OSDPHB16-FISHPAC/Surveys/D00215/Compilation/Working/chart%201300.jpgThe Field did not compare the multibeam data with the largest scale RNC and ENC charts that are within the limits of D00215. The charts named above are the smallest charts for the region. During this survey acceptance review a new set of soundings was created from the final combined base surface to compare new survey data against the RNC and ENC largest charts, The following charts are within the limits of D00215. Raster Chart Scale ENC Charts Scale 16300 1:100,000 US3AK50M 1:300,000 16305 1:200,000 US3AK61M 1:300,000 16315 1:100,000 US4AK52M 1:100,000 16338 1:100,000 US4AK53M 1:100,000 16520 1:300,000 US4AK86M 1:100,000 16546 1:300,000 US4AK87M 1:100,000 16343 1:80,000 US4AK84M 1:200,000 16528 1:40,000 US5AK6CM 1:40,000 As already described in this section of the DR summary, select soundings from the data from D00215 should supersede charted data. It was found that in general, surveyed soundings agree with a majority of the charted depths with some exceptions such as: (see images a reference) A few survey soundings that are close to the trackline were found to be shoaler than the charted soundings. A few survey soundings were found to be shoalest between charted soundings. There are blank areas without soundings that can be updated from the survey. Survey D00215 does not reveal any dangerous shoaling that would require any additional surveys. However some charts in the region have sections without much hydrography. Assessment of need for additional survey work should be determined by OPS using AIS tracking and heat maps. NOAA 4mD00215_MB_4m_MLLWReconnaissanceCUBE4NOAA 16mD00215_MB_16m_MLLWReconnaissanceCUBE16NOAA 4mD00215_MB_4m_MLLW_FinalReconnaissanceCUBE4400NOAA 16mD00215_MB_16m_MLLW_FinalReconnaissanceCUBE16100040AlaskaOSD-PHB-162016-08-092016-08-27NOAA Ship FAIRWEATHERBristol Bay1023188Kongsberg EM710North American Datum of 1983 (NAD83)TCARICDR Mark Van Waes, NOAAD002152016-08-15UTM Zone 3NMean Lower Low WaterEastern Bering Sea