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UK Civil HydrographyProgramme 2021Seabed characterisationBathymetryWreck investigationBackscatter

Civil Hydrography Annual Seminar 2021ContentsForeword2Introduction3Civil Hydrography Annual Seminar 20215News from the CHP6Survey Vessels 2020/217Collaboration & Partnerships8How the MCA Gathers Hydrographic Data10Propose a Survey11Survey Safety12Hydrographic Notes13Wreck Investigations13SS Richard Montgomery14Sharing Data with the MCA15Offshore Wind Energy & Shipping Safety16Guidelines for Offshore Renewal Energy Developers16MGN 543: Hydrography17Annex 1: CHP Surveys 2020/2118Annex 2: Planned CHP Surveys 2021/2220Annex 3: Indicative CHP Surveys 2022/2323Contacts251

Civil Hydrography Annual Seminar 2021ForewordI hope you and your teams are keeping safe and well throughout thisongoing and challenging period.I am extremely proud to report that the management and delivery of theUK Civil Hydrography Programme, and collaborative surveys, hascontinued apace throughout the Covid-19 restrictions. Indeed,internationally, the CHP may be one of a very small number of suchprogrammes that have continued to be operational throughout thepandemic. This is largely due to the flexibility, dedication and hard workof my Hydrography team, our colleagues at the UKHO, our collaborationpartners, and our contractors who have complied with the changing withgovt advice and rapidly introduced comprehensive policies to ensuresurvey operations continue whilst ensuring safety of all those involved.During the last two years, and despite the pandemic, the programme ofhigh priority surveys, collaborative surveys, analysis and reportingcompleted through the CHP has been larger than in previous years. Wehave maximised the periods of good weather and sea conditions, as wellas the application of new technologies, such as unmanned surfacevessels, often operating in challenging areas.As the largest commissioner of civil hydrography and seabed mappingin UK home waters the MCA recognises its responsibility to leadinitiatives to improve co-ordination and co-operation between funders ofGovernment hydrography. In addition to undertaking collaborativesurveys, further agreements have been established, expanding theMCA’s portfolio of public-sector collaborations. These relationships areresulting in coordination of medium-term survey programmes,expansion of survey capability, and maximising efficient utilisation ofpublic-funded survey assets and resources, to realise value for money.I would like to acknowledge all those involved with the various elementsof the CHP, whether on the vessels, on site, in the office or working fromremote locations.Andrew ColenuttHead of Hydrography & MeteorologyMaritime & Coastguard Agency2

Civil Hydrography Annual Seminar 2021IntroductionAs an executive agency of the Department forTransport, the Maritime and CoastguardAgency (MCA) plays a key role in implementingand enforcing the Government’s maritimesafety and environmental protection strategies.We are committed to preventing loss of life,continuously improving maritime safety andprotecting the marine environment. As ever,our mission remains: safer lives, safer shipsand cleaner seas.gather and report seabed data using their ownpersonnel, equipment and vessels.The CHP workscope is divided into thefollowing streams: Routine resurvey - navigationally criticalshallow water areas with mobile seabed; Shallow water - predominantly 0 to 40mwater depth; and Shallow to medium water - 0 to 200mwater depth.Within this remit, the MCA has overallresponsibility for the UK’s hydrographicobligations under the Safety of Life at SeaConvention (SOLAS) but works in closepartnership with the UK Hydrographic Office(UKHO) to ensure these obligations are met.This year saw the introduction of an additionalcontract, Supplementary Hydrographic SurveyServices, which the MCA may utilise tomaximise our involvement and input incollaborative opportunities, where the provisionof hydrographic survey services or technicalexpertise may be required to support suchinitiatives.The MCA manages a multi-million-poundbudget to systematically survey the watersaround the UK. This programme is known asthe “Civil Hydrography Programme” (CHP).Under the CHP, commercial contracts are let toensure accurate hydrographic information isgathered for updating the nation’s nauticalcharts and publications.To support the requirements of the CHP, ncludinghighresolutionmultibeam echosounders (MBES) and RealTime Kinematic (RTK) Global PositioningSystems (GPS) to ensure accurate tionally, more focused work includes highresolution wreck investigations, water columndata collection and seabed grab sampling.The CHP prioritises areas of highestnavigational safety risk and surveys and mapsUK home waters - defined by the boundaries ofthe UK’s Exclusive Economic Zone, an area inexcess of 720,000km2 - in order to keep ournation’s nautical charts and publicationscurrent, safe and fit for purpose.Prior to final data being accepted fromcontractors, it passes through a rigorous qualityassurance process at the UKHO’s BathymetryScientific Analysis Group, where checks aremade against items such as data density,interline consistency, geodetic parameters andtidal observations.The MCA makes extensive use of geographicinformation systems (GIS) to prioritise surveyareas using a contemporary risk analysismethodology capable of reflecting the changingpressures of the maritime sector.Once data has passed validation, it is archivedto the UKHO’s bathymetric database ready forinclusion in their nautical charting products.The hydrographic survey work commissionedfor the CHP is undertaken by contractors, who3

Civil Hydrography Annual Seminar 2021The UKHO hosts the Marine Environment Data and Information Network (MEDIN) Data Archive Centre(DAC) for bathymetry data. Bathymetry data collected through the CHP are made freely available -medin-bathymetry-data-archive-centreThe British Geological Survey hosts the MEDIN DAC for geology, geophysics and backscatter data.Backscatter data collected through the CHP are made freely available ography & Meteorology TeamThe MCA Hydrography and Meteorology team has grown to manage and deliver the UK MarineWeather Service and Maritime Safety Information. The team comprises: Andrew Colenutt – Head of Hydrography and Meteorology Paula English – Hydrography Programme Lead Aris Manou – Hydrography Lead Rebecca De Bono – Hydrography and Meteorology Programmes Coordinator Tammy Newey – Maritime Safety Information (MSI) Programme and Policy Lead Nel Clarke – MSI Programme and Policy Officer4

Civil Hydrography Annual Seminar 2021Civil Hydrography Annual Seminar 2021The MCA convene the Civil Hydrography Annual Seminar (CHAS), which is the only Governmentled marine event of its kind that opens its doors to the UK hydrographic survey and seabed mappingcommunity. The primary aim of CHAS is to provide an open forum for Government and industry tocome together to share their hydrographic data gathering and seabed mapping programmes for theforthcoming years to enable longer-term survey planning integration. The aims of CHAS are: To provide an open forum for public sector organisations to come together to share datagathering programmes for the forthcoming years To encourage co-operative working and survey planning integration To realise the financial benefits of co-funding such work.As the largest commissioner of civilhydrography and seabed mapping in UK homewaters the MCA recognises its responsibility tolead initiatives to improve co-ordination andco-operation between funders of Governmenthydrography.The MCA advocate a coordinated andintegrated approach to the longer-term surveyplanning, which hopefully will enable thehydrographic sector to manage fundingstreams more effectively, develop newpartnershipsandstrengthenexistingcollaborations between stakeholders.HI 1569 Sound of Raasay5

Civil Hydrography Annual Seminar 2021News from the CHPCHP Survey ContractsThe work scopes for 2021-23 have been awarded to the following marine survey contractorsfollowing a rigorous competitive tendering exercise:Clinton Marine Survey: CHP Lot 1 (Shallow) & CHP Lot 5 (Supplementary Survey Services)A-2-Sea Solutions: CHP Lot 2 (Shallow to Medium) & CHP Lot 3 (Routine Resurvey)EGS International: Lot 4 (Receiver of Wreck, SS Richard Montgomery)CHP 2020/21 surveysDespite the pandemic and associated challenges, a substantial programme of high priority surveys,including collaborative surveys, analysis and reporting has been completed. We have maximisedthe periods of good weather and sea conditions, as well as the application of new technologies, suchas unmanned surface vessels. In total, 27 CHP surveys have been conducted during 2020/21,covering approximately 5,821km2 of seabed:Lot 1: Shallow Water:Lot 3: Routine Resurvey:HI 1586 South of Isle of WightHI 1684 EA 3 Cockle Shoal Full areaHI 1587 Bridlington to Spurn HeadHI 1685 EA 4 Caister Road Focused areaHI 1678 Fowey to Eddystone RocksHI 1686 EA7 Cross Sands Full areaHI 1679 Eddystone Rocks to Bolt HeadHI 1687 EA9 Holm Channel Full areaHI 1682 Bass Rock to St Abb’s HeadHI 1688 EA10 Approaches to LowestoftFocused areaHI 1584 Northern Approach to Sunk TSSHI 1689 TE2a North SHipwash Full areaHI 1683 Spurn Head to Withernsea(commissioned by the North East RegionalCoastal Monitoring Programme, under theauspices of the CHP)HI 1690 TE3a South Ship Head Full areaHI 1691 TE3a Sunk Focused areaHI 1692 TE5Long Sand Head Full areaAdditional surveys (3 from Lot 1 broughtforward from 2021/22 and 1 from Lot 2):HI 1693 TE6 Black Deep Full areaHI 1589 Eastern HarrisHI 1698 TE2b South ShipwashHI 1676 Western Approach to AberporthHI 1694 DWR C1, C2, C3 Tail of the FallsHI 1677 St David’s Head to Strumble HeadHI 1695 DWR T Focused areaHI 1680 Kilbrannon SoundAdditional surveys from Lot 2:HI 1517 Lowestoft to Outer GabbardHI 1595 Mid-English ChannelHI 1511 North Channel TSS6

Civil Hydrography Annual Seminar 2021Survey Vessels 2020/21MV Northern Wind Clinton GroupMV Lode Clinton GroupXOcean XOceanSV Kaiku MeriTaito GroupFPV Morven A-2-Sea GroupCerys Line A-2-Sea Group7

Civil Hydrography Annual Seminar 2021Collaboration & PartnershipsAs the largest commissioner of civil hydrography and seabed mapping in UK home waters the MCArecognises its responsibility to lead initiatives to improve co-ordination and co-operation betweenfunders of Government hydrography. The MCA are always exploring opportunities to collaboratewith other organisations in order to further increase efficiencies under the gather once, use manytimes philosophy.Within the hydrographic community, effective collaborations have been established between publicsector organisations, government departments and with research and industry partners. Sharingmedium-term survey programmes and working together through partnerships and MoUs hasenabled survey capability to be taken forward within and between organisations whilst maximisingthe leverage of public-funded survey assets and resources.A number of successful partnerships with the MCA have arisen out of CHAS - most notably, theNational Network of Regional Coastal Monitoring Programmes (RCMPs) through close collaborationwith the Channel Coastal Observatory (CCO). The Memorandum of Agreement to carry outnearshore bathymetric surveys of the English Coastline has signatories from the following LeadAuthorities of the National Network of Regional Coastal Monitoring Programmes (RCMPs): NewForest District Council (Southeast RCMP); Teignbridge District Council (Southwest RCMP); theMetropolitan Borough of Sefton (Northwest RCMP); Scarborough Borough Council (NortheastRCMP); and East Riding of Yorkshire Council (ERYC RCMP).In 2020/21, HI 1683 Spurn Head to Withernsea was commissioned by the North East RCMP. Thissurvey was undertaken in partnership with the MCA under the auspices of the CHP. All data gatheredare made freely available under the Open Government Licence; are collected using the UK CHPSurvey Specification; and submitted under the CHP to additionally support the update of nauticalcharts and products by the UK Hydrographic Office.The MCA have also undertaken surveys of HI 1592 Fishguard to Cardigan and HI 1562 CardiganBay North, in collaboration with the Welsh Coastal Monitoring Centre. This arrangement mirrors theMoA with the NNRCMP.8

Civil Hydrography Annual Seminar 2021HI 1679 Eddystone Rocks to Bolt HeadIn October 2020, a Memorandum of Understanding was established between MCA and Cefas(Centre for the Environment, Fisheries and Aquaculture Sciences). The MoU enables Cefas toundertake approved survey operations considered under the auspices of the MCA CHP and enableMCA to undertake additional survey operations funded by Cefas, using MCA contractor’s via MCA’sCHP contractual arrangements. This agreement will optimise public expenditure by sharing the costsof procurement of swath bathymetry surveys for areas of mutual interest, avoiding duplication ofeffort, realise opportunities for survey collaboration and planning, and makes data freely availablefrom the MCA (via the UK Hydrographic Office (UKHO) Bathymetry INSPIRE Data Archive Centreand the British Geological Survey (BGS) Offshore GeoIndex Data Archive).The MCA are currently exploring further opportunities to collaborate on hydrographic survey andseabed mapping with colleagues from the Department of Infrastructure, Isle of Man, and potentialsurvey collaboration and maximizing use of CHP data with colleagues in the Environment Agency,Marine Scotland, NatureScot and Scottish Environmental Protection Agency.9

Civil Hydrography Annual Seminar 2021How the MCA gathers hydrographic dataHydrographic survey is the process of gathering a wide variety of data for the purpose of describingthe seafloor. To ensure that data is collected to the highest possible quality for navigational charting,the MCA specify the following requirements.StandardsQuality AssuranceAll surveys are conducted to the IHO Order 1asurvey standard, as defined by theInternational Hydrographic Organisation (IHO)publication ‘Standards for HydrographicSurveys, Special Publication S44, Edition 5’,withtheexceptionofsingle-beamechosounder (SBES) check lines under theRoutine Resurvey Programme.Data Quality Control In addition to QC procedures employed byCHP survey contractors, technicalpersonnel from both the MCA and UKHOroutinelyvisitcontractors’vesselsthroughout survey operations to verify dataquality. Prior to final survey data being acceptedfrom contractors, it passes through arigorous quality assurance process at theUKHO, where checks are made for itemssuchasdatadensity,inter-lineconsistency, geodetic parameters, tidalobservations etc. Contractors are asked to provide errorbudgets prior to and after every survey sothat the contribution of individual errorsources are tightly defined. This ensuresrigorous quality control of the final surveydataset.Technical RequirementsMultibeam Echosounder (MBES) Multibeam bathymetry is collected duringall CHP surveys. The MCA usually require 100%bathymetric coverage in all areas theysurvey. System detection capability is defined byIHO requirements. Contractors arerequired to detect objects whose size isgreater than a cube measuring 2m3, inwater depths of up to 40m, and a cube withsides equal to 10% of depth in deeperwaters. A minimum of 9 soundings per minimumdetectable object are required. Sound velocity measurements areroutinely taken throughout the survey inorder to position the soundings correctly. avigate safely.Uncharted wreck from HI 1591 St Abb’s Head to Farne IslandsHI 1589 Eastern Harris. Wreck of the steamship Stassa13

Civil Hydrography Annual Seminar 2021SS Richard MontgomeryThe SS Richard Montgomery was an American Liberty ship that went aground in the Thames Estuaryin August 1944 with a cargo of munitions. The wreck lies adjacent to the Medway Approach Channeland the wreck is designated as a dangerous wreck under section 2 of the Protection of Wrecks Act1973. The Maritime and Coastguard Agency has responsibility though the Receiver of Wreck formonitoring the condition of the wreck and regular surveys of the wreck are undertaken.From October 2019 the survey schedule for the SS Richard Montgomery has been expanded toprovide two surveys a year - a focused snapshot survey and a full survey taking place at six-monthintervals. The focused snapshot survey area includes the wreck and the seabed area immediatelyadjacent to the wreck. The full survey encompasses the wreck, the prohibited area around the wreck,the surrounding seabed area and a section of the dredged shipping channel to the south of thewreck.The MCA has extended the contract of EGS, the nominated contractor, to 2023. The snapshotsurvey scheduled for March 2020 was unfortunately cancelled due to Covid-19. However, a fullsurvey was undertaken in August/September 2020, which showed only minor change in the conditionof the wreck since the previous 2019 survey. The results suggest that the wreck condition remainsstable. The next snapshot survey is scheduled for April 2021.SS Richard Montgomery, September 2020 crown copyright.14

Civil Hydrography Annual Seminar 2021Sharing Data with the MCAIf you are considering performing a hydrographic survey and are willing to share your data with us,we can pass it on to the UK Hydrographic Office to help them compile new or updated nautical chartsand so help improve safety for mariners.Your survey does not need to be carried out to full charting standards to be of use. Even without afull search for dangers, a modern survey can improve on our knowledge of the seabed. There willbe no legal liability on you for the way that the data is used. However, data which fully complies withall aspects of IHO Order 1a would be ideal.The MCA are always happy to give help and advice on hydrographic data gathering requirements inorder to increase the usefulness of hydrographic survey data. Ideally bathymetry data would berendered and delivered in digital form, with: Data in one of the following formats:CARIS Project Directory, Qimera ProjectDirectory, or Generic Sensor Format.A report of the survey that describes how thedata was gathered and processed would be ofuse, especially if it includes: Spurious data cleaned from the final,delivered,datasetwithrejectedsoundings included, but flagged asdeleted. A list of the equipment and softwareused; How positioning equipment was set up,calibrated and used; Details of the method used for datacleaning. How the echo-sounder transducer wasset up and levelled, together with allsensor offsets; Digital data as full density (i.e. prior toany gridding or binning being applied),though if gridded datasets have beencreated then please include these too. Details of the horizontal datum to whichthe positions are referred (or the grid, ifappropriate); The soundings reduced using observedtides (not predicted tides from TideTables). How tides were measured, how the tidepole or tide gauge was levelled and howdepths were reduced to chart datum. Depths referenced to Chart Datum for thearea.15

Civil Hydrography Annual Seminar 2021Offshore Wind Energy & Shipping SafetyWith the increased growth of offshore windfarm developments in the North Sea, the countries aroundthe North Sea need and want to co-operate on where wind farms are sited, especially those proposednear the borders of the EEZ.Strengthening the existing relationships between the various Member States has resulted in greaterfocus to: better co-ordinate planning and development of offshore and onshore electricity gridexpansion to facilitate the expansion of offshore wind; collaborate on maritime spatial planning; develop an integrated approach to assessing cumulative impacts on navigation; and comment on proposed policies on surveying in and around windfarms, for navigation safetyand meeting SOLAS obligations.These areas of mutual interest will continue to be discussed and advanced at the North SeaHydrographic Commission Resurvey Working Group and the forum for Offshore Wind Energy andShipping Safety in the North Sea.Guidelines for Offshore RenewableEnergy DevelopersThe MCA has issued guidelines which areintended to aid developers when submittingdevelopment consent applications that impactupon hydrography. These guidelines should beread in conjunction with Marine Guidance Note(MGN) 543, which is currently being revisedand the new version, to be published inMarch/April 2021, will have a new MGNnumber. They are/will be available on the MCApages on gov.uk.salvage and towing, and counter pollution)caused by offshore renewable energyinstallation developments. It applies toproposals in United Kingdom internal waters,Territorial Sea and Exclusive Economic Zone.All hydrographic surveys should provide fullseafloor coverage that meets the requirementsof the IHO Order 1a survey standard. Particularattention should be given to horizontal andvertical sounding accuracy, together with targetdetection requirements. It is requested that alldata and reports are passed to the MCA forforwarding to the UKHO for the update of theUK’s nautical charts and publications.The MGN 543 guidance note highlights issuesthat need to be taken into consideration whenassessing the impact on navigational safetyand emergency response (search and rescue,16

MGN 543: HydrographyIn order to establish a baseline, confirm the safe navigable depth, monitor seabed mobility and toidentify underwater hazards, detailed and accurate hydrographic surveys are required of thedevelopment at the following stages: Pre-construction: the proposed generating assets area shall be undertaken as part of the licenceand/or consent application. The survey shall include all proposed cable route(s). Post-construction: Cable route(s). Post-decommissioning of all or part of the development: the installed generating assets area andcable route(s).The development may result in an alteration tomaritime traffic patterns as vessels seekalternative passage around the installedgenerating assets area. Where this is the case,it may be considered necessary that ahydrographic survey of these alternatepassages and their immediate environs beundertaken. MCA can provide guidance here ifrequired.Where shipping corridors are formed within oradjacent to the consented generating assetsarea, the requirement for hydrographic surveysshall be referred to the MCA and undertaken ona case-by-case basis. All hydrographic surveyslisted above should fulfil the requirements of theMCA’s ‘Hydrography Guidelines for OffshoreRenewable Energy Developers’.Where to DeliverOn completion of each survey, the bathymetricdata and associated report of survey should bedelivered to the MCA.Please send your data and reports to:Head of Hydrography & MeteorologyUK Technical Services NavigationThe MCA is responsible for collecting andsupplying data to the UKHO to update nauticalcharts and publications for the purposes ofnavigation safety.Maritime & Coastguard AgencyBay 2/25, Spring Place105 Commercial RoadThe commercial sensitivity of your data willalways be respected.Southampton, SO15 1EGDevelopers are reminded of the requirement toreport significant changes in depths fromcharted depths that become a navigationhazard to UKHO so Navigational Warnings andNotice to Mariners can be issued, if necessary.If you require any further assistance with theabove guidelines, please contact the MCA at:hydrography@mcga.gov.uk17

Civil Hydrography Annual Seminar 2021Annex 1: CHP Surveys 2020/2118

Civil Hydrography Annual Seminar 202119

Civil Hydrography Annual Seminar 2021Annex 2: Planned CHP Surveys 2021/2220

Civil Hydrography Annual Seminar 202121

Civil Hydrography Annual Seminar 202122

Civil Hydrography Annual Seminar 2021Annex 3: Indicative CHP Surveys 2022/23The following graphic shows the high priority areas that are under consideration for eithertaking forward in 2022/23 or subsequent years, or may be brought forward to the currentyear, depending on available MCA budget, collaboration opportunities and survey capacity.23

Civil Hydrography Annual Seminar 202124

Civil HydrographyAnnualSeminarUK Civil HydrographyProgramme 2015Edition2021ContactsMaritime and Coastguard AgencySpring Place105 Commercial RoadSouthamptonSO15 1EGTel:Web:020 3817 2000www.gov.uk/mcaHydrography and Meteorology TeamHeadHydrographyMeteorology,MCA& Meteorology AndrewColenuttTel: 020381 72674AndrewColenutt,Head& ofHydrography020 381 72428Paula English, Hydrography Programme Lead020 381 72489Aris Manou, Hydrography Lead020 381 72244Rebecca De Bono, Hydrography & MeteorologyProgrammes Co-ordinator020 381 72431Tammy Newey, MSI Programme and Policy Lead020 381 72183Nel Clarke, MSI Programme and Policy OfficerE-mail:hydrography@mcga.gov.ukCHP MCA@mcga.gov.ukMSI MCA@mcga.gov.ukUse of Admiralty charts contained within are Crown copyright and/or databaserights. Reproduced by permission of the Controller of Her Majesty’s StationaryOffice and the UK Hydrographic Office (www.ukho.gov.uk). Crown copyright

responsibility for the UK’s hydrographic obligations under the Safety of Life at Sea Convention (SOLAS) but works in close partnership with the UK Hydrographic Office (UKHO) to ensure these obligations are met. The MCA manages a multi-million-pound

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