OPR-L318-FA-13Approaches to LA Long Beach, CALong Beach, CANOAA Ship FAIRWEATHERH126193Not applicableApproaches to San PedroCaliforniaUnited States100002013CDR David J. Zezula, NOAANavigable Area2013-08-012013-09-192013-11-03Multibeam 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 Geophysical Data Center (NGDC) and can be retrieved via http:// www.ngdc.noaa.gov/.NOAAThe Survey area is located in Long Beach, CA, within the sub-locality of the Approaches to San Pedro.33.6965444444118.30760277833.6238194444118.1630305561H12619 Survey OutlineSupportFiles\H12619_survey_outline.jpgThe purpose of this project is to provide contemporary surveys to update National Ocean Service (NOS) nautical charting products. H12619 will address critical areas as identified in the 2012 NOAA Hydrographic Survey Priorities (NHSP). The entire survey is adequate to supersede previous data.Survey Limits were acquired in accordance with the requirements in the Project Instructions and the HSSD.2OPR-L318-FA-13 project area and H12619 coverage graphicSupportFiles\Project_overview.pngSurvey Coverage was in accordance with the requirements in the Project Instructions and the HSSD.2013-09-192013-09-242013-09-252013-09-302013-10-272013-10-292013-11-022013-11-030100023.89S2200.00204.930.000.000.000.000.000.000.0028080.0023.420.000.000.000.000.005.080.0028050.0079.710.000.000.000.000.006.150.0028060.0035.870.000.000.000.000.008.160.0028070.0032.240.000.000.000.000.0012.250.0028010.0089.860.000.000.000.000.000.000.000.00466.040.000.000.000.000.0031.640.006.8Refer 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.s22070.44.728018.641.1228058.641.1228068.641.1228078.641.1228088.641.12RESON7111MBESRESON7125MBESRESONSVP71Sound Speed SystemRESONSVP70Sound Speed SystemSea-BirdSBE 19PlusSound Speed SystemApplanixPOS MV V4Positioning and Attitude SystemThe Sea-Bird SBE 19Plus is a type of Conductivity, Temperature, and Depth SensorCrosslines were collected, processed and compared in accordance with 5.2.4.3 of the HSSD. Surface differencing in CARIS Bathy DataBASE was used to assess crossline agreement with main-scheme lines. Figure 3 depicts a difference surface between a 16-meter surface made with main-scheme lines only and an 16-meter surface made with crosslines only. This difference surface is submitted digitally in the Separates II folder. Crossline and main-scheme differences (gray indicates agreement, cool colors indicate crosslines shoaler than main-scheme and warm colors indicate crosslines are deeper) Figure 4 is a statistical representation of crossline differences, which shows 95% of all nodes have a maximum deviation of +/- 0.27 meters.3H12619 Crosslines OverviewSupportFiles\H12619_crossline_scale.jpg4H12619 Crosslines StatisticsSupportFiles\H12619_Crossline_comparison.png0.010.08280120.5280520.5280620.5280720.5280820.5S-22020.5The areas of overlap between the sheets were reviewed in CARIS Subset Editor for sounding consistency and by surface differencing appropriately combined surfaces to assess surface agreement.. The soundings and surfaces are in agreement within half a meter. The junction agreement is within the total allowable vertical and horizontal uncertainty in their common areas and depths for shallow grades. Data overlap between all surveys was achieved. See Figure 5 for area of overlap.5Junctions between H12617, H12618, H12619, and H11882SupportFiles\H12619_Junction_Surveys.jpgH1261860002013NOAA Ship FAIRWEATHERNEThe areas of overlap between H12619 and H12618 were reviewed in CARIS subset editor for consistency and by surface differencing a 4-meter (H12619) and a 2-meter(H12618) combined surface in CARIS BathyDatabase. The data was found to show 95% of the nodes had a maximum deviation of +/- 0.23 meters, as shown in Figure 6.6H12619 and H12618 junction deviationSupportFiles\H12619_H12618_Junction.pngH1261760002013NOAA Ship FAIRWEATHERNThe areas of overlap between H12619 and H12617 were reviewed in CARIS subset editor for consistency and by surface differencing a 4-meter (H12619) and a 2-meter(H12617) combined surface in CARIS BathyDatabase. The data was found to show 95% of the nodes had a maximum deviation of +/- 0.13 meters, as shown in Figure 7. 7H12619 and H12617 junction deviationSupportFiles\H12619_H12617_Junction.txt.pngH11882200002008Fugro Pelagos, Inc.SThe areas of overlap between H12619 and H11882 were reviewed in CARIS by surface differencing a 16-meter (H12619) combined surface and a 10-meter(H11882) surface in CARIS BathyDatabase. The data was found to show 70% of the nodes had a maximum deviation of +/- 0.77 meters, as shown in Figure 8. The region of overlap for these surveys encompass a steep and deep cannon, which accounts for the incidents of high deviation as seen in Figure 9. This high deviation is due impart to the difference in surface resolution and the uncertainty of CUBE hypotheses in steep areas.8H12619 and H11882 junction deviationSupportFiles\H12619_H11882_Junction.txt.png9H12619 and H11882 junction area with higher deviationSupportFiles\H12619_H11882_highDeviation_area.pngSonar system quality control checks were conducted as detailed in the quality control section of the DAPR.MVP problemThe Moving Vessel Profiler (MVP) was out of commission for all RESON 7111 multibeam acquisition on sheet H12619. The condition of the MVP lead to fewer sound speed casts being collected and resulted in noticeable artifacts seen in Figure 10. 10RESON 7111 Sound Velocity artifactSupportFiles\H12619_SVP.jpgData not meeting IHO specifications due to these sound velocity artifacts were rejected (see below, B.2.6).Sound speed artifact due to inadaquate sampling frequencyAs mentioned above in section B.2.5, there are numerous instances where the CUBE surface has been pulled down to the tails of overlapping survey lines with sound speed artifacts. Areas of the CUBE surface that were out-of-spec were rejected as seen in Figure 11.11CUBE surface pulled down to tail of frownSupportFiles\H12619_SV_IHO.pngSound speed measurements were conducted as discussed in the Data Acquisition section of the DAPR except as noted belowThe Fairweather's MVP was non-operational during ship survey with the RESON 7111. During ship acquisition a Seabird 19plus CTD was used for SVP.All equipment and survey methods were used as detailed in the DAPR.IHO UncertaintyAfter filtering all RESON 7111 data to 70 degrees off nadir on both port and starboard, data from both the RESON 7111 and 7125 meet the data accuracy specifications as stated in the NOS Hydrographic Surveys Specifications and Deliverables (HSSD). The following results were found: 100% of the nodes in the finalized 1-meter grid meet IHO order 1 specifications for uncertainty. 100% of the nodes in the finalized 2-meter grid meet IHO order 1 specifications for uncertainty. 99.93% of the nodes in the finalized 4-meter grid meet IHO order 1 specifications for uncertainty. 99.89% of the nodes in the finalized 8-meter grid meet IHO order 1 specifications for uncertainty(72-100meters.) 100% of the nodes in the finalized 8-meter grid meet IHO order 2 specifications for uncertainty(100-160meters.) 100% of the nodes in the finalized 16-meter grid meet IHO order 2 specifications for uncertainty. See Standards Compliance Review in Appendix V and Figure 12.12Finalized surfaces, IHOSupportFiles\IHO.jpgDensityDensity requirements for the 1m, 2m, 4m, 8m, and 16m finalized surfaces were achieved with an average of 99.38% of finalized surface nodes containing five or more soundings. See Standards Compliance Review in Appendix V.Holiday AssessmentComplete multibeam coverage was obtained within the limits of H12619. For holidays larger than three surface grid nodes, the corresponding multibeam side scan was examined and no navigationally significant items were found. The least depths of all navigationally significant features are represented by H12619. Data holidays exist in the two meter surface; one in the North central section of the sheet (Figure 13) and one on the East end of the sheet (Figure 14.)13H12619, holiday North East of the fish havenSupportFiles\H12619_Holiday1.png14H12619, holiday on the East end of the sheetSupportFiles\H12619_Holiday2.pngData is adequate for charting.All data reduction procedures conform to those detailed in the DAPR.All sounding systems were calibrated as detailed in the DAPR.Backscatter was logged to 7k files and submitted to NGDC for file backup and to the Pacific Hydrographic Branch for processing. Backscatter was not processed by the field unit.NOAA Profile V_5_3H12619_MB_1m_MLLWCUBE1NOAA_1mComplete MBESH12619_MB_2m_MLLWCUBE2NOAA_2mComplete MBESH12619_MB_4m_MLLWCUBE4NOAA_4mComplete MBESH12619_MB_8m_MLLWCUBE8NOAA_8mComplete MBESH12619_MB_16m_MLLWCUBE16NOAA_16mComplete MBESH12619_MB_1m_MLLW_FinalCUBE1020NOAA_1mComplete MBESH12619_MB_2m_MLLW_FinalCUBE21840NOAA_2mComplete MBESH12619_MB_4m_MLLW_FinalCUBE43680NOAA_4mComplete MBESH12619_MB_8m_MLLW_FinalCUBE872160NOAA_8mComplete MBESH12619_MB_16m_MLLW_FinalCUBE16144523.14NOAA_16mComplete MBESH12619_MB_16m_MLLW_CombinedCUBE160523.14NOAA_16mComplete MBESThe NOAA CUBE parameters mandated in HSSD were used for the creation of all CUBE BASE surfaces in Survey H1619. The surfaces have been reviewed where noisy data, or 'fliers' are incorporated into the gridded solution causing the surface to be shoaler 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 vertical uncertainty at that depth, the noisy data have been rejected and the surface recomputed.H12619_MB_16m_MLLW_combined created during office processing was used for compilation.Data LogsData acquisition and processing notes are included in the acquisition and processing logs, and additional processing such as final tide and sound velocity application is noted in the H12619 Data Log spreadsheet. All data logs are submitted digitally in the Separates I folderCritical SoundingsDesignation of soundings followed procedures as outlined in section 5.1.1.2 of the HSSD. Survey 12619 required 5 designated soundings. One sounding was designated as a Danger to Navigation. The remaining four soundings are required to accurately represent the sea floor. See Figure 15.15H12619 Designated SoundingsSupportFiles\H12619_Designated_Sounding.jpgIt was necessary to designate 11 additional soundings at the processing branch so that the sea floor was accurately represented or for feature creation.Data Processing DeviationsWhile all Crosslines were filtered to 45 degrees off nadir on both port and starboard, some data was re-accepted to fill gaps created by filtering.No additional Horizontal or Vertical Control Report will be submitted with H12619.Mean Lower Low WaterDiscrete ZoningLos Angeles, CA94106609410660.tidFinal ApprovedL318FA2013CORP_Rev.zdfFinal2013-11-122013-11-19Preliminary zoning is accepted as the final zoning for project OPR-L318-FA-2013.Tide note is attached.North American Datum of 1983 (NAD83)UTM zone 11 NorthSmart BaseCRHSCRHS_SCGN_CS1999CAT3CAT#_SCGN_CS2008TORPTORRANCE AIRPORTTRAKBOMMER CANYONSBCCSBCC_SCGN_CS1999CAT2CAT2_SCGN_CS2000BLSABOLSA CHICA CHANNELCSDHCSU DOMINGUEZFVPKFAIRVIEW PARKLBC2LONG BEACH CC2LBCHLONG BEACHPVE3PALOS VERDESPVHSPENINSULA HIGH SCHOOLSACYSANTA ANA CORP. YARDVTISMARINE EXCHANGEVessel kinematic data were post-processed using Applanix POSPac processing software and SmartBase Post Processed Kinematic methods described in the DAPR. Smooth Best Estimate of Trajectory (SBET) and associated error (RMS) data were applied to all MBES data in CARIS HIPS. For further details regarding the processing and quality control checks performed see the H12619 POSPac Processing Logs spreadsheet located in the SBET folder with the GNSS data. All data from H12619 can be referenced to the ellipsoid with noted exceptions outlined in section C.3, "Apply SBET and associated error values failure."Point Loma, CA - 302 kHzBakersfield, CA - 305 kHzUSCG DGPS station, Point Loma (302 kHz) was the primary DGPS station used. Bakersfield station (305 kHz) was used as an alternate on DN302 when the signal from Point Loma was degraded beyond the tolerable limit set in Applanix's POSView application.POSPac Error ValuesRoll, pitch, gyro, and navigation (and elevation) uncertainty values were supplied by a SBET RMS file generated by Applanix POSPac.Apply SBET and associated error values failureDuring the application of POSPac SBETs and associated error values in Caris, the process failed for several HDCS lines. For most instances the SBET time extents did not overlap the line or SBET creation failed (POS MV file (2013_302_2805.596-.600) from 2805 DN 302 is corrupt and cannot create an SBET), which is detailed in Figure 16.16SBET errorsSupportFiles\H12619_SBET_error.jpgSBET was not applied to any of the 23 lines from S220 DN268. SBET and SBET RMS were not applied to line S220 DN267 2013M_2670507. SBET was not applied but SBET RMS was applied to two lines from 2801 DN300: 2013M_3002253 and 2013M_3002304. No positional discrepancies exist due to these SBET/ SBET RMS errors.Soundings were created in CARIS HIPS and SIPS at the appropriate map scale for each chart comparison. H12619 soundings were layered above both a transparent 16 meter combined surface and most recent Raster charts for the area (18746, 18749). Charted soundings were then visually compared with H12619 generated sounding for agreement as seen in Figure 17. A similar process was conducted for H12619 generated contours and charted contours as seen in Figure 18.17Generated soundings in North East corner of sheet over chart 18746SupportFiles\H12619_Soundings_NE.png18Generated contours over chart 18746SupportFiles\H12619_18746_contours.png18746189780000392013-062014-01-072014-01-18Soundings from survey H12619 generally agreed within one to two fathoms of chart 18746 with one exception. An uncharted obstruction with associated designated sounding in the North West corner of the sheet has an 11 fathom sounding near charted 17 and 18 fathom depths as seen in Figure 19. Contours generated in CARIS BDB closely approximate the charted 20, 50, 100, 150, 200, 250-fathom contours.1911 Fathom sounding near 17 and 18 fathom depthsSupportFiles\Chart_11fath_DS.png18749190320000432010-042014-01-072014-01-18Soundings from survey H12619 generally agreed within one to five feet of chart 18749 with noted exceptions. Contours generated in CARIS BDB closely approximate the charted 120 and 300-foot contours. US4CA60M80000172013-11-182013-11-18falseSoundings from survey H12619 generally agreed within one to two fathoms on chart US4CA60M. Contours in CARIS HIPS closely approximate the charted contours. See discussion from Raster chart 18746 for more details.US5CA61M20000302013-09-162013-09-16falseSoundings from survey H12619 generally agreed within one to five feet on chart US5CA61M. Contours in CARIS HIPS closely approximate the charted contours. See discussion from Raster chart 18749 for more details.There is one AWOIS item located within the limits of H12619, item #50158. This assigned AWOIS item was investigated with 200% MBES. No object was found within the search radius. Recommend removing AWOIS item #50158 from the AWOIS database.There were 8 AWOIS items in this survey, one of which (#50158) was assigned for full investigation. Two obstructions were discovered within the search radius for this AWOIS at the processing branch. All features were addressed during office review, see feature report.No Maritime Boundary Points were assigned for this survey.All assigned charted features were investigated and are included in the survey's Final Feature File. One assigned charted feature was not addressed by the field and was proven by MBES at the Processing Branch. One uncharted feature was found with the MBES, submitted as a DTON, and included in the survey's final feature file.Additional uncharted obstructions were found during office processing at the branch and are recommended for charting.1H12619_DTON2013-12-03Danger to Navigation Reports are included in Appendix II of this report.20DTON General AreaSupportFiles\H12619_DTON_general_area.png21DTON CARIS SubsetSupportFiles\H12619_DTON_Subset.pngNo shoals or potentially hazardous features exist for this survey.Non-maintained channels (Los Angeles and Long Beach channel), precautionary areas, and pilot boarding areas exist within the survey limits, but were not investigated.No bottom samples were required for this survey.No shoreline features were present within the bounds of this survey.Prior survey comparisons exist for this survey, but were not investigated.Survey H12619 included six (6) aids to navigation (ATONs). All six ATONs were found to be on-station and appear to be serving their intended purpose as charted.No overhead features exist for this survey.Submarine features exist for this survey, but were not investigated.Ferry routes and/or terminals exist for this survey, but were not investigated.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.CDR David J. Zezula, NOAAChief of Party2014-05-21LT Ryan A. Wartick, NOAAField Operations Officer2014-05-21HCST Tami M. BeduhnChief Survey Technician2014-05-21LT Ryan A. Wartick, NOAASheet Manager2014-05-21Data Acquisition and Processing Report2013-05-21Coast Pilot Report2013-11-15