OPR-P136-RA-16OPR-P136-RA-16North Coast of Kodiak IslandNOAA Ship RAINIERH129195UganikAlaskaUnited States400002016CAPT Edward J. Van Den AmeeleNavigable Area2016-05-162016-06-132016-06-30Multibeam Echo SounderMultibeam Echo Sounder BackscattermetersUniversal Transverse Mercator (UTM)UTCPacific Hydrographic BranchThe purpose of this survey is to provide contemporary surveys to update National Ocean Service (NOS) nautical charts. All separates are filed with the hydrographic data. Any revisions to the Descriptive Report (DR) generated during office processing are shown in bold red italic text. The processing branch maintains the DR as a field unit product, therefore, all information and recommendations within the body of the DR are considered preliminary unless otherwise noted. The final disposition of surveyed features is represented in the OCS nautical chart update products. All pertinent records for this survey, including the DR, are archived at the National Centers for Envitronmental Information (NCEI) and can be retrieved via http://www.ncei.noaa.gov/.NOAAThis survey is referred to as "Uganik" within the Project Instructions. This area covers approximately five square nautical miles of the entrance to Uganik Passage on the north coast of Kodiak Island, Alaska (Figure 1).57.875865153.45333333357.8299416667153.405231667Acquired survey coverage of H12919 on Chart 16597file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Survey%20Outline.pngExisting set net fishing sites along both shores of Uganik Passage prevented coverage for the assigned sheet limits (Figure 2). Four areas, along the southwest corner, southern shore, and southeast corner, as well as the northwest corner of the sheet, were not surveyed due to the presence of nets.H12919 deviations from assigned sheet limits due to the presence of fishing netsfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20survey%20deviations.pngThe purpose of this project is to provide contemporary data to update National Ocean Service (NOS) nautical charting products, which support Kodiak's fishing fleet and increasing levels of passenger vessel traffic.The entire survey is adequate to supersede previous data.Survey H12919 met the standards for data quality as outlined in NOS Hydrographic Surveys Specifications and Deliverables (HSSD) March 2016. The Grid Quality Analysis function in Pydro QC Tools was used to determine IHO compliance for complete coverage. 99.87% of H12919 MBES nodes met HSSD complete coverage requirements (Figures 3 - 6).MBES data within the 1-meter finalized CUBE surfacefile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919_MB_1m_MLLW_Final.density.pngMBES data within the 2-meter finalized CUBE surfacefile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919_MB_2m_MLLW_Final.density.pngMBES data within the 4-meter finalized CUBE surfacefile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919_MB_4m_MLLW_Final.density.pngMBES data within the 8-meter finalized CUBE surfacefile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919_MB_8m_MLLW_Final.density.pngInshore limit to 8 meters water depthComplete MBES coverage with backscatter (HSSD Section 5.2.2.3), or set line spacing for Multibeam Echosounder (MBES) or Single Beam Echosounder (SBES) at 100m (HSSD Section 5.2.2.4)Greater than 8 meters water depthComplete Coverage with MBES (HSSD Section 5.2.2.3 - Option A)Complete multibeam echosounder coverage covered most of the assigned area, with the exception of the four fishing net areas noted (Figures 7-9). Coverage to the Navigable Area Limit Line (NALL) was not achieved in these four areas. These areas could not be safely developed any further, due to the presence of set net fishing in the area. The area in the northwest corner measures approximately 300 by 150 meters, the area in the southwest corner measures approximately 400 by 380 meters, the area in the central southern limit measures approximately 870 meters by 280 meters, and the area in the southeast corner measures approximately 450 meters by 175 meters. One additional holiday was identified outside of the assigned limits for H12919 (Figure 10). This area has sufficient coverage from adjacent survey H12848. H12919 complete coverage holidaysfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Holidays.pngH12919 holidaysfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Holidays%20West.pngH12919 holidays, continuedfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Holidays%20Southeast.pngH12919 holiday outside of assigned survey limitsfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Holiday%20Outside.pngH12919 Survey Coverage (Chart 16597)file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Survey%20Coverage.png2804067.8300000002803015.860000000280203.480000015.1902801018.1500000000105.3200105.32105.32015.19014.42502404.922016-06-132016-06-152016-06-162016-06-222016-06-232016-06-272016-06-292016-06-30Refer 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.28048.81.128038.81.128028.81.128018.81.119055.70.319065.80.3All data for H12919 were acquired by survey launches 2801, 2802, 2803, and 2804 and skiffs 1905 and 1906. The survey launches acquired MBES depth soundings, backscatter data, sound speed profiles, and bottom samples. The skiffs conducted shoreline verification.Sea-Bird ElectronicsSBE 19plus SEACAT ProfilierConductivity, Temperature, and Depth SensorResonSVP71Sound Speed SystemResonSeaBat 7125-BMBESResonSeaBat 7125 SV2MBESApplanixPOS M/V v5Positioning and Attitude SystemMultibeam crosslines were acquired by Rainier Launch 2802. An 8-meter CUBE surface was created using H12919 mainscheme lines, with an accompanying 8-meter CUBE surface generated from only crosslines (Figure 12). Two 8-meter difference surfaces were created in CARIS HIPS and SIPS for the purpose of computing total vertical uncertainty (TVU) statistics: one surface ranging from 0 meters to 100 meters for IHO Order I, and another surface ranging from 100 meters and deeper for IHO Order II. The difference surface was compared to HSSD allowable TVU standards, resulting in 97.87% of depth differences between H12919 mainscheme and crossline data meeting HSSD TVU standards (Figure 13). When examining areas outside the allowable difference for the IHO Order I and II surfaces, the majority fell in areas of sloping and dynamic sea floor (Figures 14-15). This analysis was performed on H12919 data reduced to Mean Lower-Low Water (MLLW) using Ellipsoidally Referenced Zoned Tides (ERZT) methods.Depth-colored MBES overlay of H12919 crosslines.file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Crossline%20Overlay.pngSummary table indicating percentage of difference surface nodes between H12919 mainscheme and crossline data for associated depths.file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20IHO%20Compliance%20table.pngOverlay of crossline depth differences with 8-meter MBES IHO Order I depth layerfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20IHO%20Failure.pngOverlay of crossline depth differences with 8-meter MBES IHO Order II depth layerfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20IHO%20Failure%20Order%20II.png00.018129ERS via ERZT2801, 2802, 2803, 280430.15Total Propagated Uncertainty (TPU) values for H12919 were derived from a combination of fixed values for equipment and vessel characteristics, as well as field assigned values for sound speed uncertainties. Tidal uncertainties were accounted for by examining the created 1000-m separation model and statistically determining a measured uncertainty. The measured tide uncertainty value of 0.018129 meters was entered to account for ERZT processing methods. See the OPR-P136-RA-16 ERZT memo included in Supplemental Correspondence for further information. In addition to the usual a priori estimates of uncertainty, some real-time and post processed uncertainty sources were also incorporated into the depth estimates of this survey. Real-time uncertainties from Reson MBES sonars were recorded and applied during post processing. Applanix TrueHeave (POS) files, which record estimates of heave uncertainty, were also applied during post processing. Finally, the post processed uncertainties associated with vessel roll, pitch, yaw and navigation, were applied in CARIS HIPS using SBET / RMS files generated using POSPac software. Uncertainty values of submitted finalized grids were calculated in CARIS HIPS and SIPS using the "Greater of the Two" of uncertainty and standard deviation (scaled to 95%). The Finalized CSAR Surface QA tool within Pydro Explorer was used to analyze H12919 MBES data. The results showed that more than 99% of H12919 nodes across all depth ranges met HSSD TVU uncertainty requirements (Figures 16-19).Pydro histogram plot showing HSSD uncertainty compliance of H12919 1-meter resolution gridfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919_MB_1m_MLLW_Final.tvu_qc.pngPydro histogram plot showing HSSD uncertainty compliance of H12919 2-meter resolution gridfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919_MB_2m_MLLW_Final.tvu_qc.pngPydro histogram plot showing HSSD uncertainty compliance of H12919 4-meter resolution gridfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919_MB_4m_MLLW_Final.tvu_qc.pngPydro histogram plot showing HSSD uncertainty compliance of H12919 8-meter resolution gridfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919_MB_8m_MLLW_Final.tvu_qc.pngThe supplemental correspondence noted is attached.H12919 junctions with two surveys: H12848 and H12916. These two surveys were also acquired by Rainier as part of project OPR-P136-RA-16. H12919 Junction Surveysfile:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Junctions.pngH12919 junction areas with H12916 and H12848file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Junction%20Overlap.pngH12848400002016NOAA Ship RAINIERSEOverlap with survey H12848 was approximately 2,900 meters along the eastern boundary of H12919 (Figures 20-21). Depths in the junction area range from 3 to 140 meters. For the respective depths, the difference surface was compared to the allowable IHO Order 1 and IHO Order 2 TVU standards specified in the HSSD. In total, 96.1% of the depth differences between H12919 and junction survey H12848 are within allowable uncertainties (Figure 22). Differences greater than 1-meter between the two surfaces most frequently occurred over slopes.Summary table indicating the percentage of nodes from the junction overlap that met HSSD allowable TVU standards.file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Junction%20Table.pngH12916400002016NOAA Ship RAINIERNWJunction analysis specifics between H12919 and H12916 are located in the H12916 DR.Sonar 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.19 sound speed profiles were acquired using SBE 19plus CTD probes at discrete locations within the survey area at least once every four hours, when significant changes in surface speed were observed, or when surveying in a new area. All 19 casts were applied to survey data using the "Nearest in distance within time (4 hours)" profile selection method. 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.Raw Backscatter was logged as a 7k file and will be sent to the Processing Branch. Backscatter was not processed by the field unit.CARISHIPS and SIPS9.1.6NOAA Profile V_5_4All features were processed using CARIS HIPS and SIPS 9.1 and CARIS Notebook 3.1.H12919_MB_1m_MLLWCUBE10.48162.47NOAA_1mComplete MBESH12919_MB_1m_MLLW_FinalCUBE10.1920NOAA_1mComplete MBESH12919_MB_2m_MLLWCUBE20.66162.46NOAA_2mComplete MBESH12919_MB_2m_MLLW_FinalCUBE21840NOAA_2mComplete MBESH12919_MB_4m_MLLWCUBE40.80162.38NOAA_4mComplete MBESH12919_MB_4m_MLLW_FinalCUBE43680NOAA_4mComplete MBESH12919_MB_8m_MLLWCUBE81.14162.24NOAA_8mComplete MBESH12919_MB_8m_MLLW_FinalCUBE872162.24NOAA_8mComplete MBESAll CARIS CUBE surfaces were created with lines reduced to MLLW via ERZT methods. Twenty soundings were designated in accordance with HSSD requirements. Thirteen soundings were designated in accordance with HSSD requirements. The 8-meter grid resolution range was expanded to include the full range of the survey coverage, in lieu of creating a 16-meter surface. See Supplemental Correspondence for HSD Operations Project Manager approval. The supplemental correspondence noted is attached.Additional information discussing the vertical or horizontal control for this survey can be found in the accompanying HVCR.Columbia RiverSeldovia945-5500ERS via ERZTH12919_WGS84_MLLW_SEP_1000mEllipsoidally Referenced Zoned Tides (ERZT) methods were used to transform between the ellipsoid and water level data. A 1000-meter resolution separation model between the ellipsoid and MLLW was computed using the real-time position measurements observed during the survey relative to the water line and the loaded TCARI tide file. "GPS tides" were then computed using the above separation model and the corrected GPS-height-to-water level data (SBET). The 1000-meter resolution separation model was generated in WGS84 due to the SBETs being exported in WGS84. For additional information see the OPR-P136-RA-16 ERS Capability Memo included with the supplemental correspondence.World Geodetic System of 1984 (WGS84 (G1674))Universal Transverse Mercator (UTM) Zone 5 NorthSmart BaseSingle BaseAC02AkhiokCorpAK2005AC18Ushagat_IsAK2008KOD5KODIAK 5AC24KINGSALMONAK2006AC39SHUYAKISSPAK2006KOD6KODIAK 6AC34OldHarbor_AK2006AC67PILLARMTN_AK2006AC38QUARTZ_CRKAK2005The Mids9715Kodiak 313kHzDGPS connectivity for real-time acquisition was inconsistent for the duration of the survey: Wide Area Augmentation System (WAAS) served as the primary real time horizontal control source. Chart comparisons were made using a CARIS sounding and contour layer derived from an 8-meter combined CUBE surface. The contours and soundings were overlaid on the charts and compared for general agreement and to identify areas of significant change. Charts 16597 and 16576 demonstrate agreement where they overlap, on the north half of the survey area. Chart 16597 was used to make chart comparisons for Uganik. 16597255980000102015-042016-08-022016-08-06In Uganik, the 50-fathom, 10-fathom, and 3-fathom surveyed contours generally follow the charted contours. The surveyed 10-fathom contour is generally inshore from the charted 10-fathom contour on the southern shore, whereas the surveyed 10-fathom contour is further offshore on the northern shore (Figure 23). There are several shoals inshore of the charted 10-fathom curve (Figures 24-26). There are two shoaler surveyed areas that fall outside of the charted 50-fathom contour (Figure 27). Derived soundings generally disagree with existing chart soundings, ranging from discrepancies of 2 to 28 fathoms.Chart 16597 comparison of H12919file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Chart%20Comparison%20Overview.pngShoals outside of 10-fathom and 3-fathom contours.file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Chart%20Comparison%20SE%20Shoal.pngShoals outside of 10-fathom and 3-fathom contours.file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Chart%20Comparison%20NW%20Shoal.pngShoals outside of 10-fathom and 3-fathom contours.file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Chart%20Comparison%20NE%20Shoal.pngShoal soundings beyond 50-fathom contour.file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Report/Components/SupportFiles/H12919%20Chart%20Comparison%20NE.png1657628718000052015-042016-08-022016-08-06US4AK5QM8000062016-04-172016-04-17falseIn the area of survey H12919, Electronic Navigation Chart (ENC) US4AK5QM coincides with Chart 16597, therefore a comparison between H12919 and the ENC is equivalent to the preceding comparison with Chart 16597.No Maritime Boundary Points were assigned for this survey.No charted features exist for this survey.No uncharted features exist for this survey.2H12919 DTON Report2016-07-13H12919 Danger to Navigation Report2016-08-03Danger to Navigation Reports are included in Appendix II of this report.The DTON Report is attached.Dtons on Chart 16576file:///M:/OPRP136RA16/Surveys/H12919/Compilation/Working/dton.jpgAll shoals and hazardous features were investigated in accordance with the Project Instructions and the HSSD, and are addressed in the Final Feature File submitted with this report. Some coastline features were not provided with SORIND and SORDAT from the original CSF. The issue was reported to HSD, please see supplemental correspondence. The supplemental correspondence noted is attached.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.Two bottom samples were assigned in the Project Reference File. Five total bottom samples were collected, and can be found in the final feature file. Samples were collected in the vicinity of proposed sites. Additionally, samples were collected from sites in line with historical bottom types, according to the chart, and other areas designated as potential locations for anchoring.Shoreline verification was conducted near predicted low water in accordance with the applicable sections of the NOAA HSSD and FPM. There were 11 assigned features for this survey. All of the assigned features were addressed as required with the S-57 attribution and recorded in the H12919 Final Features File to best represent the features at survey scale. Features found by leveling are referenced to estimated depths that have been corrected using discrete zoning, whereas features found using multibeam coverage have depths referenced to the 1-meter final CUBE surface which was corrected using ERZT methods. SORIND/SORDAT information was missing for five of the depth contour (DEPCNT) features associated with the Composite Source File (CSF) and Final Features File. 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 ferry routes or terminals exist for this survey.No platforms exist for this survey.No Significant Features 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 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 and Specifications Deliverables Manual, 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.Edward J. Van Den Ameele, CAPT/NOAACommanding Officer, NOAA Ship Rainier2016-10-05Steven Loy, LT/NOAAField Operations Officer, NOAA Ship Rainier2016-10-05James B. JacobsonChief Survey Technician, NOAA Ship Rainier2016-10-05Shelley T. Devereaux, ENS/NOAAJunior Officer, NOAA Ship Rainier2016-10-05