Responses to Survey on Production of HD ENCs by IHO Member States
Survey conducted through IHO CL26/2021 on the production of high-density ENCs resulted in responses from 37 Member States including Australia, Malaysia, Bangladesh, Netherlands, Belgium, and more. The summary outlines various countries' approaches and strategies for producing HD ENCs, showcasing the diverse methods and initiatives in place.
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Summary of IHO Member States Responses to the Survey on the Production of HD ENCs IHO CL 26/2021 and 42/2021 Compilation by IHO Secretariat 1
Outline Survey on the production of high density ENCs (HD ENCs) was conducted through IHO CL26/2021 The period is from 1st July to 30th September 2021. 37 MS answered Australia Malaysia Bangladesh Netherlands Belgium New Zealand Brazil Peru Canada Poland Chile Portugal China Republic of Korea Colombia Romania Denmark Singapore Ecuador Slovenia Estonia Spain Egypt South Africa Finland Suriname France Sweden Germany Tunisia Greece UK Iceland US Islamic Republic of Iran Uruguay Japan 2
37/37 responses 2 comments CA The CA representation to ENCWG informed the national Products and Services Committee of the existence of this Annex CL (translated by Secretariat) We are aware of the publication S-65 Annex A Ed. 1.0.0, but we do not know how this publication came to be part of the IHO publications, since we have no record that the IHO's procedure for approval of its publications has been complied with. S-65 Annex A makes several assumptions and generalizations regarding the situation. The understanding that ENCs are produced directly from paper charts, and therefore do not give the possibility to provide accurate information on the bathymetry they contain, particularly the ENCs of ports and restricted waters are not supported with respect to the corresponding ENCs produced by Chile through the SHOA. SHOA carries out surveys for ENCs of ports and Berthing areas (purposes 5 & 6) complying with the standards established for hydrographic surveys, and therefore the concept of ENC HD is not applicable to Chile. 3
36/37 responses If yes, please explain production basic strategy in few words and use cases you are aware of. 16 comments (1/2) AU Specific areas of Port approaches in consultation with Ports BE We already make HD-like ENC's for out pilots for more then 10 years. Usage 4 with 1m contours, U5 with 0.5m contours and U6 with 1dm contours.We started with testing for official HD-ENC's, but due to shortage of staff this is for the moment on-hold. We would like to continue as soon as possible CA CA has produced a very limited number of HD ENCs. This was done, and could be done in the future. to address very specific user requests in specific situations. CN Meet the needs of users. EC We produce ENCs Band 6 (Berthing) EG reproduction of ENCs which contains areas with the dynamic seabed ES (translated by Secretariat) Guadalquivir river and Port of Seville. Navigable rivers subject to tidal influence, and very busy harbors with narrow channels and entrances. GB HD ENCs are derived from multi-beam survey data in areas of restricted depth where ENC users require a wider range of safety contour values than available from standard ENCs. MY Our organization had produced HD ENC like other ENCs even before Annex A was available. The HD- ENC will be updated according to the S-65. NZ We worked in partnership with a NZ port (Napier) to produce a prototype hdENC for use on the Pilots PPU. This allowed us to develop the process, tools and requirements for the production & maintenance of NZ hdENC.The strategy for the production of a hdENC is as follows:- The Port will complete a business case requirements document (designed by LINZ)- LINZ will review requirements doc and make recommendations on hdENC or an alternative solution- LINZ and port agree on hdENC requirements and commit to production/maintenance/distribution- hdENC product is created, tested, produced, maintained and distributed as part of the NZ ENC folio PL No HD ENCs production and there are no production plans. At present only production on demand special charts with HD bathymetry (usually in .pdf or .tiff format). SG Singapore incorporates HD bathymetry into our ENCs. This has been done even before Annex A to Edition 1.0.0 of S-65 was available. SR HD ENCs were produced in accordance with S57 . New data sets were created. TN Currently we not produce HDENCs, but we plan to produce them in the future. 4
Q2) 15 comments (2/2) US Comment: We produced a set of ""HD-like"" Band 6 ENCs for the port of Los Angeles/Long Beach (LA/LB) prior to the publication of Annex A, but we don't label them as HD ENCs. ZA Currently investigating how best to implement and produce HD ENCs with available resources. 32/37 responses 11 comments BD Not yet incorporated CA In many cases, clients e.g. pilots, harbour authorities, have asked for higher density soundings as opposed to more contours within an area requiring precision navigation (usually berthing) and enhanced depiction of wharf infrastructure: conspicuous objects, bollards, limiting/controlling depth. areas. CO The bathymetric data is collected by Multibeam survey system ES (translated by Secretariat) Depends on traffic density and importance of the ports. FR (translated by Secretariat) To date, France does not produce HD ENCs and does not plan to produce them. France plans to examine the interest of S 102 and HD ENC in terms of benefits for the end user on the one hand, and for the producing service on the other hand. For this reason, the Shom does not answer to all the following questions. KR KHOA is producing and distributing ENCs(Band 6, for Berthing) covering main ports and channels, however, KHOA has not produced HD ENCs. NL We add a 15 m depth line to our ENCs where relevant, but we do not consider this sufficient to be an HD ENC or a HD-like ENC. PE HD data is not being incorporated into existing charts SE There are a few harbours and fairways where we have incorporated a few specific depth contours. US Comment: The LA/LB Band 6 cells contain much more detailed depth curves than on our regular ENCs. UY (translated by Secretariat) We have areas with special order surveys within the ENCs. 5
35/37 responses 18/37 responses 18 comments (1/2) BD Not yet planned BE Fairways BR Not applicable as DHN does not produce HD ENCs. CA b. Channels and waterways are also specific areas in addition to a. Main ports.Currently, client-focused case- by-case production decisions.Our product usage merge from 6 into 3 will merge harbour/berthing products into one cell. We will likely need to rely on MCSL to show the two levels of data.S-102 implementation will be systematically deployed. The CA answer is both a Main ports, and b. Channels and waterways CO A and B DE Germany produces bENC and S-102 datasets. The production of HD ENC is currently not an option or us. EC We plan to adopt the systematic coverage to main ports, channels and waterways. EG main ports with the rapid changing seabed FI Main channels 6
Q2.2) 18 comments (2/2) GB We are analysing a combination of vessel routes, draft and water depth to identify areas where navigation is constrained by depth and users require more flexibility in setting their safety contour in ECDIS. These areas are expected to include ports, anchorage areas and coastal routes.Comment on Q2.3: Answer - Through customer feedback, port recommendation and analysis of traffic patterns and depth constraints. (it would only let me select one option). KR Main ports and channels/waterways if necessary for safe navigation NZ We would also include channels and waterways if requested by the customer PE Special charts upon request SE Since we do not plan any systematic coverage the second part of Q2.2 is not applicable. US Comment: The LA/LB cells were produced for a specific request from the port and for a specific use case. We do not have plans at this time to expand that type of product to other ports. UY (translated by Secretariat) Critical areas maintained by dredging, port terminals with a large flow of overseas vessels, Safe Water Access Corridor to the R o de la Plata. ZA The aim to to achieve Main Ports and approaches thereto. 31/37 responses 2 comments CA The CA answer is a, b, c, and d. KR KHOA considers all above items(feedback, port recommendation, traffic analysis etc) when we produce ENCs(Band 6) *AU answer is a, b and c. 7
Q3) In your country, who is the organization responsible for the production of HD ENCs? 33/37 responses 31/37 responses 5 comments CA There are unofficial products being produced that are similar to b-ENCs and are produced more quickly. Some pilots and mariners use them and they are produced by other parts of government usually on behalf of the Port Authority. These are produced and disseminated outside CHS's production and distribution chain. KR KHOA has not produced HD ENC but all charts can be produced by KHOA only. NL Port Authorities produce unofficial HD ENCs for use in Portable Pilot Units (PPUs) only. PE Not involved in the production US Comment: The United States Army Corps of Engineers (USACE) produces large scale Inland ENCs that may be considered similar to HD charts for U.S. inland waters. 8
31/37 responses 8 comments CA Only nautical charts (including ENCs) and publications produced by, or on , the authority of, the CHS are considered 'official' products. GB UKHO is the main producer of HD ENCs. We also work with port authorities to approve and distribute their ENCs, which may include HD ENCs. NL Port Authorities produce unofficial HD ENCs for use in Portable Pilot Units (PPUs) only. PE Hydrographic Office solely responsible SE It is only the Swedish Maritime Administration, where the SE HO is organized, who is producing ENCs in Sweden. SG The Hydrographic Division of the Maritime and Port Authority of Singapore US Comment: The National Oceanic and Atmospheric Administration (NOAA) is the U.S. National Hydrographic Office and produces ENCs for the coastal waters of the U.S. and its territories.Comment: The United States Army Corps of Engineers (USACE) produces large scale Inland ENCs that may be considered similar to HD charts for U.S. inland waters. ZA In South Africa, the Hydrographic Office is the only organisation capable of producing HD ENCs. 9
22/37 responses 8 comments CA There is some liaison between CHS and other government bodies managing survey contracts to ensure survey data meets CHS standards which could then be easily ingested by CHS. DK Not relevant. GB Responsibility for the production of some port ENCs is delegated to port authorities. There remains close collaboration on the production processes and UKHO validates the ENCs produced before distribution. PE There is no other responsible office PL See answer in Q3.1 SE The SE HO is the only official producer of ENCs in Sweden. Q4 is not applicable. SG Not applicable US Comment: USACE is the authority for the inland waters of the U.S. 24/37 responses 3 comments PE Yes, its going to be used the same national code SE The SE HO is the only official producer of ENCs in Sweden. Q4.1 is not applicable. ZA No, we do not as we currently do not produce HD ENCs - therefore not applicable. 10
23/37 responses 6 comments CA No. These are not official products. EC The port authority is not authorized to produce ENCs. PE There is no other entity with own code SE The SE HO is the only official producer of ENCs in Sweden. Q4.2 is not applicable. US USACE uses their own S-62 producer code, 553, U3 ZA No, we do not as we currently do not produce HD ENCs - therefore not applicable. 11
Q5) What is the update regime of your HD ENCs? Is it driven by the update regime of the surveys? Impact on quality control? Impact on the distribution chain? (RENC, etc.)? Impact on the other usage bands? 20 comments BR Not applicable as DHN does not produce HD ENCs. CA Not a lot of updating of berthing scale products has occurred. It is usually driven by consultation, new dredging action or an incident. CO CO does not publish HD ENCs chart, yet DE See Q2.2 comment DK Question cannot be answered/not relevant. EC Update regime of the surveys ES (translated by Secretariat) for the first two: surveys and quality control. FI The ENCs with HD-type information included will follow the regular updating regime for ENCs. Updates are issued based on new information received. GB The update regime is driven by the frequency of surveys. When new survey data is received it is used to update the bathymetric surface and a HD ENC new edition is produced. MY Update the regime of the surveys/new information by conducting impact analysis with the current products. NZ The update regime is determined by the update regime of the surveys.Maintenance, i.e. surveys & NE hdENC is driven by the berth/channel rate of accretion. The period of surveys and NE is part of the agreement for hdENC between the port and LINZ. PE Update due new surveys PL No HD ENCs production SE HD ENC is not produced in Sweden. Q5 is not applicable. SG Driven by the update regime of the surveys SI When new survey is available. SR update regime is based on the monitoring survey of the ports. TN currently we are not producing HD-ENCs, but we plan to produce them in the future. US Comment: All NOAA ENCs are updated with new hydrographic survey data as it is received and compiled, as well as changes from any other sources such as aids to navigation, new shoreline, and so forth. The HD ENCs are processed through the same review process, quality control, and distribution chain (IC-ENC) as our other ENCs. ZA If we did produce it would most likely by be driven by the update regime of the surveys. 12
21/37 responses 7 comments DK Question cannot be answered/not relevant. MY Monthly update PE Will be updated when new surveys been performed SE HD ENC is not produced in Sweden. Q5.1 is not applicable. SR Depending on the port ( based on rate of sedimentation) , updates can be done annually, semi- annually and quarterly. US NOAA ENCs are published on a weekly basis if there are updates to release. ZA Not applicable. 22/37 responses 6 comments CA It is usually driven by consultation, new dredging action or an incident. DK Question cannot be answered/not relevant. NZ Maintenance, i.e. surveys & NE hdENC is driven by the berth/channel rate of accretion. The period of surveys and NE is part of the agreement for hdENC between the port and LINZ. PE Depend on new surveys SE HD ENC is not produced in Sweden. Q5.2 is not applicable. US Comment: New survey data will trigger an update or new edition for an LA/LB cell (HD ENC) which would be published on our weekly update cycle. 13
Q5.3) Average time between two HD ENCs editions 21 comments AU up to 12 months, depending on port survey routines BE Variable, depends on the frequency of surveys, area, dredging, storm, ... BR Not applicable as DHN does not produce HD ENCs. CA Not applicable. CO CO does not publish HD ENCs chart, yet DE see Q2.2 comment DK Question cannot be answered/not relevant. EC Depends on new survey data EG depend on the updated regime of the surveys ES for the first two: surveys and quality control FI Varies based on new information received. GB The time between HD ENC editions is determined by the availability of new source data, mainly new survey data. MY 1 to 2 years depending on survey data availability. NZ Maintenance, i.e. surveys & NE hdENC is driven by the berth/channel rate of accretion. The period of surveys and NE is part of the agreement for hdENC between the port and LINZ. PE According to the prioritization of new hydrographic surveys and significant changes due to natural phenomena SE HD ENC is not produced in Sweden. Q5.3 is not applicable. SG Approximately every two years SI Usually annually, except in exceptional cases may also be more frequent. SR Depending on the port ( based on rate of sedimentation) , updates can be done annually, semi- annually and quarterly. US 3 monthsComment: These include changes other than survey information, such as shoreline and ATONS. It is dependent on new information that is received. ZA Not able to comment due to non production of HD ENCs. 14
21/37 responses 7 comments DK Question cannot be answered/not relevant. GB Normally the variability of the area will drive the resurvey frequency, which in turn drives the frequency of HD ENC editions NZ Maintenance, i.e. surveys & NE hdENC is driven by the berth/channel rate of accretion. The period of surveys and NE is part of the agreement for hdENC between the port and LINZ. PE When the situations warrant it due to climatic changes SE HD ENC is not produced in Sweden. Q5.3.1 is not applicable. SG Routine surveys US Comment: The LA/LB port is accessed by dredged channels that are regularly maintained and surveyed. 21/37 responses 8 comments (1/2) DK Question cannot be answered/not relevant. FI HD infomation is produced only where best quality data is available. GB Delivery of new survey data will result in a new edition of the HD ENC PE According to established planning, according to type of chart 15
Q5.3.2) 8 comments (2/2) SE HD ENC is not produced in Sweden. Q5.3.2 is not applicable. SG Routine surveys US Comment: All survey data received for LA/LB is typically the same order, so the latest data supersedes the previous surveys. ZA If we did produce, it would depend on the last survey order. 24/37 responses 10 comments AU Just to Usage 5 for consistency of standard contours BE In the underlying usage we won't update the batymetry as frequently CO CO only publish ENCs DE we use the bathymetric data provided by source of bENC or S-102 dadatsets FI Not producing specific HD ENCs GB Smaller scale UKHO ENCs are updated based on the content of larger scale ENCs produced by port authorities. NZ LINZ would maintain other ENCs using data from hdENC.For example, high res coastline & shoreline construction would be used in Usage 5 ENCs PE At the moment we do not have HD ENC charts SE HD ENC is not produced in Sweden. Q5.3.3 is not applicable. US Comment: In the LA/LB area, data used to update the Band 6 cells is used to update other scale bands that cover the same area. 16
Q6) In critical areas where HD ENCs are produced 2/37 responses 24 comments (1/2) AU up to 12 months BE Depends if there has been dredging activities taking place, condition of the weather (storm), ... BR Not applicable as DHN does not produce HD ENCs. CA As required. CN No defined period. CO CO only publish ENCs DE see Q2.2 comment DK Question cannot be answered/not relevant. EC We do not produce HD ENCs. We just produce ENCs Band 6 EG depends on the HO's Plan ES (translated by Secretariat) It is coordinated with Port Authorities to carry out an annual / biennial survey between the IHM and the aforementioned Authorities, but it all depends on variability in each Port. FI Varies, usually not even once a year. The existence of HD information ENC is not major factor in survey planning. GB Resurvey frequency is determined by the rate of change in the seabed in each area. MY 2 to 5 years and as per required NZ The update regime is determined by the update regime of the surveys.Maintenance, i.e. surveys & NE hdENC is driven by the berth/channel rate of accretion. The period of surveys and NE is part of the agreement for hdENC between the port and LINZ. PE When there are significant changes in critical areas, dredging ones, sedimentation or upon user request. But there is no HD charts production PL No HD ENCs production SE HD ENC is not produced in Sweden. Q6.1 is not applicable. 17
Q6.1) 23 comments (2/2) SG Not applicable SR 3 months or more TN currently we are not producing HD-ENCs, but we plan to produce them in the future. US 5 months. Comment: In the LA/LB area, these are typically USACE channel surveys. UY By not producing HD ENCs, the current surveys are carried out to improve the quality and to update the old data found in our cartography. ZA Not applicable - still to be determined. 17/37 responses 10 comments BE All survey data is validated in the same way, HD-ENC contours are produced automatically. BR Not applicable as DHN does not produce HD ENCs. CO CO only publish ENCs DK Question cannot be answered/not relevant. NZ Any survey must meet the LINZ hdENC survey specification, i.e. LINZ-Special Order 1The deliverables include a 0.5m bathymetry grid.LINZ will validate the survey data and use automated processes to create the hdENC from the 0.5m bathymetry grid PE Semi automated distribution. SE HD ENC is not produced in Sweden. Q6.2 is not applicable. TN currently we are not producing HD-ENCs, but we plan to produce them in the future. US Comment: Depth contours and sounding selections can be done automatically but there is extensive clean-up of data and the integration of the surrounding features that is done manually. ZA If we did produce HD ENCs, we would follow a manual processing/validation process. 18
9/37 responses 16 comments BR Not applicable as DHN does not produce HD ENCs. CA 2 months to greater than 6 months.Length of time depends on the urgency, resources and if it is a 'Trusted source'. CO CO only publish ENCs DK Question cannot be answered/not relevant. ES (translated by Secretariat) 1 year. When there is a major modification involving a danger to navigation, it is one month. FI Months unless significant changes are observed during the survey, in which case the significant changes are processed and promulgated more urgently. GB The time between survey and release of a HD ENC is 1-2 months in most cases. However specific requirements can be delivered in weeks. MY 6 to 8 months from survey to HD ENC NZ The hdENC is created in 1 week, and distributed via NZ ENC Service and IC-ENC RENC PE Upon request. SE HD ENC is not produced in Sweden. Q6.3 is not applicable. SG Not applicable TN currently we are not producing HD-ENCs, but we plan to produce them in the future. US 3 monthsComment: This is dependent on the amount of resources and the size of the survey, priority is always given to data critical for safe navigation. UY (translated by Secretariat) We have a dynamic work rhythm, for this reason, when we produce high definition electronic charts the update time would be 1 month.carrying out the corresponding survey. ZA Not applicable - still to be determined. *AUanswer is 2 weeks? and 1 month? . 19
37/37 responses 1 comment PE Yes, we know it. 20
Q8) Are you aware of specific requirements by Port State Control authorities? 29/37 responses 10 comments AU No specific requirement beyond normal ENC carriage BE Not aware of any specific requirements. DE The German PSC has no specific requirements regarding HD ENC KR As an organization that manufactures nautical charts, of course, we're aware of all requirements for safe navigation by Port State Control authorities. But It's difficult to answer the above question. Please clarify the questions about specific requirements for HD ENCs or S-102 products. MY No specific requirement by Port State Control Authorities NZ There are no specific requirements by NZ Port State Control authority - Maritime NZ PE We are the autonomous governing body SG Not applicable SR Port State Control Authorities are aware the requirements of Nautical Charts but not explicitly HD ENCs US Comment: The content of the LA/LB Band 6 ENCs and their specific use by the port was coordinated with the U.S. Coast Guard (USCG). 21
29/37 responses 8 comments CA Canada is producing and distributing S-102 data through a RENC, but this is not a Port State Authority requirement. CO CO has not started the Sxx production DE The German PSC has no specific requirements regarding S-102 products. KR Please see the Q8.1's comment NZ There are no specific requirements by NZ Port State Control authority - Maritime NZ PE We are the autonomous governing body SG Not applicable US Comment: Future NOAA S-102 products' content and intended uses will be coordinated with the USCG. 22
Q8.3) In your opinion, what are the advantages and drawbacks if any, of a HD ENC compared to a non HD S-101 ENC coupled with S-102 product? 26 comments (1/2) AU haven't compared at this stage, but expecting better granularity BE At this moment easy to produce and distribute.At this very moment it gives the mariner a detailed, usuable chart.For the future, when S102 is in use/mature, less. BR DHN believes the combination of S-101 and S-102 complies a better trade-off in terms of production effort, as well as a more suitable set of specialized data. CA There can be more flexibility with S101 and S-102 for the mariner to display the contours interval.The surface can be generated faster (usually automatically) from a multibeam survey, compared to compiling and generating contours for HD ENCs. The mariner, therefore, can get a more current 'view' of the situation, in other words, better situational awareness.S-102 is raster product. To generate vectorized contours and depths, the electronic chart system e.g. PPU, must make some internal calculations. This can be particularly challenging if the survey coverage is not 100% complete. The size of the HD ENC can be an issue, i.e. too large, if not careful with scale and geographic limits. CO CO has not started the Sxx production DE S-102 products can be produced semi-automatically at a higher update frequency. The file size is not limited. The user can select any possible depth contour and is not limited by the depth contour which is provied by the products. DK Different production time. EC The advantage is while more bathymetric information, it provides more security to sailors. EE We are not aware of possible advantages or drawbacks. As we are not producing HD ENC-s and have little experience with S-101 coupled with S-102 EG S-101 ENC coupled with S-102better visualization of data in terms of clutter ES (translated by Secretariat) Production of depth contours at maximum resolution (advantage), and increase in size (Mb) of the ENC (disadvantage). FI HD ENC is available as S-57 already now and does not require S-100 capable ECDIS even if the future. For S-100 ECDIS user the S-101+S-102 combination is better option though. GB There is significant feedback from mariners that the inflexibility in setting safety contour values in areas restricted by depth is a problem in ECDIS and potentially a safety risk. This was most recently highlighted in the UK Marine Accident Investigation Branch (MAIB) and Danish Maritime Accident Investigation Branch (DMAIB) report into ECDIS use. This report highlighted as a key challenge ""the frequent impracticability of the setting of an efficient safety contour, leading to the use of 'official workarounds' (e.g. included in recognised guidance) and 'unofficial workarounds' (e.g. alarm disablement) to optimise the display to make the best of a bad job. Alternatively, the safety contour is ignored altogether.""The safety contour defaults to the nearest shoaler contour value available in the ENC, often showing navigable water as being behind the safety contour. This means that users have to conduct individual risk assessments for entering port, turn off or acknowledge multiple unnecessary alarms and navigate on an ECDIS display that doesn't accurately show their safe water. HD ENCs allow this problem to be solved in the ECDIS being used for navigation. Whilst this will be possible using a combination of S-101 and S-102 in the future, it will be many years before this solves the user's problem in the type-approved navigational ECDIS.There also remain unanswered questions about how gridded S-102 data will be used to derive a safety contour within a system, how usable that will be for a navigator and where any liability for errors in the processing of the data will lie. These issues need to be resolved before we can fully understand how S-102 data will be used for navigation. 23
Q8.3) 26 comments (2/2) GR They are two separate products, they can be displayed individually and they do not affect overlapping. MY HD ENC depends on the usage band while non HD S-101 ENC is coupled with S-102 products. The advantage of HD ENC is the data structure are vector which has a faster loading period compared to the S-102 data structure which is bigger in size. The advantage of S-102 is the data accuracy is based on resolution however require higher processing unit/hardware to display in real time. NL We assume that ships with small UKC will be launching customers of S-101 ENCs coupled with S-102 bahtymetry. We prefer to use our limited resources to focus on the introduction of S-100 series products, rather than HD ENCs. NZ The hdENC is a stand alone S-57/S-101 ENC proven product that is fit for purpose for all users/systems, i.e. Mariners/Pilots using PPU/ECDIS/ECS. PE HD charts are advantageous in required critical areas PL S-101/S-102 - more innovative solution, e.g. giving the opportunity of depth contours automatic calculation with the desired values or dynamic calculation of ""under keel clearance"", better data presentation. Drawback: The S-102 datasets can be very large which may make their management more difficult. Probably a necessity of the additional training courses for ECDIS users of using S-101/S-102 data. The way of data display (e.g. 3D) may result to a smaller focus on conducting navigation/manoeuvring. HD ENC - does not require additional training course or investment in software.Drawback: HD ENC may reduce the ECDIS display readability due to the larger number of contour lines, density of soundings. SE One advantage with S-102 is that the user has the flexibility to choose any uniquedepth level. Further more S-102 enable a full intergration with S-104 and S-129 and other S-xxx products.The production of S-102 is less resource consuming than the production of HD ENCgiven to complex topological restraints in ENCs. SI Using S-102 product for the areas where and when needed. SR Advantages of the non HD S-101 ENC coupled with S102; it has the option to turn off layer if not needed to de clutter the available data for the user. TN The standard S-102 can resolve the recovery problem between ENC cells and elaborate better representation of seabed morphology. US Comment: The process for producing a bathymetry only NOAA S-102 product from survey data should take less time than the additional work needed to incorporate the data into a complete cartographic product. Having the 'HD' data in a separate overlay will allow users who need that data will be able to obtain it, while the more general users who do not require the enhanced bathymetry will be able to use the S-101 ENC on its own. UY (translated by Secretariat) When the mariner has the possibility of displaying a S-102 base surface bathymetry in ECDIS during navigation, he will have a more effective and useful product available to view detailed seabed morphology, as well as its slope and features. ZA Improved safety of navigation, bmo setting better safety contours with higher resolution data sets. 24
34/37 responses 13 comments BD Not yet planned CA Production has already started in some areas. All the 'key areas' for regular production have not yet been determined. CL (translated by Secretariat) Not for the time being. EC Not at the moment. EE According to the regional hydrographic commssion strategy. GB We have published trial S-102 data and we are expanding the number of ports that it covers. We expect to start the regular production of S-102 data as the standard matures. GR Not before 2025 NZ Our focus is solely on the production of hdENC for NZ ports at this time and for the foreseeable future. This does not preclude the production of S-102 products in the future. PE When conditions allow PL On channels, waterways, anchorage areas and main ports. US Comment: One of the primary goals of NOAA's National Bathymetric Source project is to produce S-102 products. UY (translated by Secretariat) In Ports, main channels, recommended routes. ZA Main commercial ports only. 25
19/37 responses 17 comments BE But there will be overlap during a long period and we will take the user feedback into account. CA In some instances, this has yet to be determined, e.g. areas that are not very dynamic and mariners uptake of S-102. DE See Q2.2 comment DK We don't have HD ENCs EC We do not intend at the moment. FI This is something to be reviewed when there is more experience of S-102. GB We believe that there will be a role for HD ENCs until type-approved ECDIS using S-101 and S-102 data are in operation on vessels. MY For the time being, we will maintain both products until no demand from the user. NZ Our focus is the production of hdENC for NZ ports at this time and for the foreseeable future. This does not preclude the production of S-102 products in the future. PE They will be maintained as required, in specific areas PL No HD ENCs production PT We do not produce HD ENC SE SE has no plans to produce HD ENCs. Q10 is not applicable. SR adapt S-102 US Comment: When we have implemented S-101 and S102 production, the combination of the two will replace the current 'HD-like' Band 6 ENCs. UY (translated by Secretariat) No response, due to SOHMA is not producing HD ENCs. ZA Not applicable. 26
Q11) Once S-101 becomes operational and S-100 ECDIS become available, do you envisage to convert your existing HD ENCs? 21/37 responses 13 comments AU possibly until S-102 inhouse capability is developed DE see Q2.2 comment DK Question cannot be answered/not relevant EE It is unlikely that we start producing HD ENC's before S-101. GB We haven't yet considered whether or not there is a role for HD ENCs once S-100 ECDIS are operational PE From the information available PL No HD ENCs production PT We do not produce HD ENC SE SE has no plans to produce HD ENCs. Q11.1 is not applicable. TN currently we are not producing HD-ENCs, but we plan to produce them in the future. US Comment: All of NOAA's current ENC coverage will be converted to S-101, including the few HD ENCs that exist. As S-102 products are available we will adapt these future S-101 HD ENC products to account for this by re-compiling them to be consistent with the other S-101 ENCs in our suite. UY No response, due to SOHMA is not producing HD ENCs. ZA When data becomes available. 27
23/37 responses 10 comments AU once a capability is up and running CA Yes, for most of these areas. However, in areas of low rates of change/variability and/or in the case where the HD or HD-like ENCs exist outside priority S-102 areas, they may persist. DE see Q2.2 we intend to produce S-102 products in future DK Question cannot be answered/not relevant EE It is unlikely that we start producing HD ENC's before S-102. GB We haven't yet considered whether or not there is a role for HD ENCs once S-100 ECDIS are operational NZ Our focus is the production of hdENC for NZ ports at this time and for the foreseeable future. This does not preclude the production of S-102 products in the future. PE Upon request PL No HD ENCs production UY No se responde dado que SOHMA no se encuentra produciendo ENCs HD.No response, due to SOHMA is not producing HD ENCs. 28
22/37 responses 13 comments BE Only for a certain transition period. DE We do not intend to produce HD ENC DK If we had HD ENCs, then probably not EC In the future. EE It is unlikely that we start producing HD ENC's before S-102. FI At least to begin with to support S-57 ECDIS users. GB We haven't yet considered whether or not there is a role for HD ENCs once S-100 ECDIS are operational MY We will maintain HD ENCs until no demand from the user. NZ Our focus is the production of hdENC for NZ ports at this time and for the foreseeable future. This does not preclude the production of S-102 products in the future. PE Would replace S-102 PL No HD ENCs production SE SE has no plans to produce HD ENCs. UY No response, due to SOHMA is not producing HD ENCs. 29
Q12) Based on your experience (HD ENCs, S-102 test data sets), what are the top 3 recommendations you would like to share with the IHO Member States willing to start their production of HD ENCs? 25 comments (1/2) AU Based on our existing portfolio of 10 HDENC cells and 5 in production we offer: stakeholder enagagement; introduce automation into the production; well defined survey requirements BE 1. No (or less) generalisation of the depthlines & -areas (1m contours are generated)2. Define the scamin of the depthlines on 100, so the mariner can choose his/her safety depth in colour without seeing the cluthering of all the depthlines3. Only HD-ENC on the fairways BR DHN does not have recommendations to share because does not produce HD ENCs and has not started to test de production of S-102. CA 1. Consult with users who need/want them and have tools to use them.2. Focus on the production of S-102 in key areas (as determined in part by 1. above) including ensuring there is the data accuracy, tools, and the survey capacity to support them and the ability to deliver them in a timely manner. 3. Plan the transformation of S-57 to S-101 ENCs, to maximize the advantages of S-101 and S-102 working together. CL (translated by Secretariat) No experience CO CO does not have any experience, yet DK We have no experience. EC We do not have produced HD ENCs. We have just produced ENCs Band 6 (Berthing). EE We have no experience with HD ENC-s and little experience with S-102, so we withdraw from any recommendations currently. EG still doesn't have the full experience to share ES (translated by Secretariat) 1. Increased safety for mariners. 2. Improved quality control. 3. Modification to the chart scheme (chart boundaries). GB Keep the user in mind at all times. HD ENCs are a way to improve the operation of ECDIS in critical, depth- constrained areas. They can be made available to users quickly for use in their main navigational ECDIS, without waiting for changes to standards and regulations. They need to be targeted at areas where they add the most value to users. Their usage band and compilation scale needs to be tailored to the radar range that users are expected to be using in the area of the HD ENC, otherwise they will not display on the ECDIS at the right time. IR Nothing to be shared at the moment KR Even with the production of HD ENCs and S-102 products, S-57 ENCs will still exist. In order for new tries for safe navigation to be more promptly effective, it's necessary to develop equipment such as ECDIS which displays such products. For example, we need to consider whether single equipment will display S-57/S-101 and HD ENCs, or individual equipment will display different ENCs, and how they will be displayed for safe navigation. MY The HO will still need to produce HD ENC if there are still demand from the users. Areas that have critical UKC are prioritize for HD ENC. 30
Q12) 25 comments (2/2) NZ Early engagement with the customer:- customer led, demand driven, a business decision which will require significant investment, clear understanding and agreement of requirements and responsibilities/liabilities.Adopt automated tools & processes (the principle of automation) to enable production at paceDevelop relevant documentation and guidelines for customers and staff PE We are in implementation and development PL No experiences PT Portugal not agree with HD ENC. Portugal support S-102. SE SE has no plans to produce HD ENCs, so SE refrains to recommend anything in regards to HD ENCs. HOs may consider to develop S-102 data sets as a more long term sustainable option for a flexible depth contour selection, integrated with other S-xxx products. SG 1) determine suitable area for HD ENC coverage2) portrayal of HD contours3) keeping within file size limit of 5MB SR 1)Produce HD ENC's directly in S102 format2)Produce HD ENC's in line with sedimentation rate and/or survey regime if used for ports or port approaches. TN currently we are not producing HD-ENCs, but we plan to produce them in the future. US Comment: 1) If a hydrographic office wants to proceed with HD Chart production, produce HD products for discrete problem areas, rather than duplicating large areas of coverage at the Band 6 scale band.2) If there are no urgent needs for high resolution data, consider deferring the production of high resolution products if possible and focus on transitioning to S-101 and S-102 production. UY No response, due to SOHMA is not producing HD ENCs. 31
Q13) Based on your experience (HD ENCs, S-102 test data sets), what are the top 3 recommendations you would like to share with the IHO Member States willing to start their production of S-102 products? 25 comments (1/2) BE We do not have enough experience with S-102 products to give any recommendations. BR DHN does not have recommendations to share because does not produce HD ENCs and has not started to test de production of S-102. CA 1. Focus on the updating of the S-102 and their database.2. Have access to systems that can use the data to see how it is portrayed and used.3. Understand and develop the complete production chain from data acquisition to the end user. It can be complex and require several steps, technologies, and partners to make the whole process effective and efficient. CL (translated by Secretariat) No experience CO CO does not have any experience, yet DE Definition of the areas, definition of schema (grid or chart based), appropriate software DK We have no experience. EC We do not have produced S-102 products. EE We have no experience with HD ENC-s and little experience with S-102, so we withdraw from any recommendations currently. EG still doesn't have the full experience to share ES (translated by Secretariat) Implementation of a specific production plan which is different in some respects from the standard ENCs. GB Our overall approach to the development of new services follows the Build, Measure and Learn process. Build-measure-learn (BML) is a process of building a product, measuring user metrics and learning from them to better respond to customer needs and improve the product. Start by building an initial S-102 test data set and make it available for testing and feedback with users, measure progress and capture your learning so you can build this into your approach.From our experience of building HD-ENCs and S-102 datasets and measuring the reaction of users, we recommend:1.Naming of cells needs careful consideration. A naming convention which provides the opportunity to work across S-100 data sets whilst also supporting producers and users (human and machine) whilst following the guidance provided in the standards is not easy to achieve.2.The production of the new S-102 datasets and/or HD ENCs is driven by user need but the availability of existing, future and supporting data to generate the new products at appropriate resolutions must be factored into scheming/gridding of these services.3.Through giving our experts time and space to dedicate to understanding and testing future standards we have been able create valid test beds and feedback mechanisms to support our future production systems. This has enabled us to consider the technology necessary for the future along with the skills and expertise required. IR Nothing to be shared at the moment KR Please see the Q12's comment. MY We are still in the development process of producing S-102 products. PE We are in implementation and development PL No experiences 32
Q13) 25 comments (2/2) PT States should invest in S-102 and should abandon the concept of HD ENC due to the danger of spreading ENC without standardised requirements. SE S-102 is a important part of the s-100 concept.Interoperability with other s-1XX products will be provided. SG Capacity building SI It's still work in progress for us. First step is to plan the areas where the HD ENC, S-102 test data set is needed. SR Not much experience , still in transition fase 1) when producing cells , take into account the data size . Possible divide area into manageable cells or product area.2) make a suitable transition plan based on HO circumstances TN currently we are not producing HD-ENCs, but we plan to produce them in the future. US 1. Consider that in the future S-102 data may replace the depth information in S-101 products and that the data still needs to be considered safe for navigation and have the appropriate data quality and metadata applied.2. As noted in Question 8.3's response, theoretically, S-102 products should be easier to produce than HD ENCs as most of the production can be automated. This will save on resources that are typically limited and allow for a focus on transition to S-101. UY No response, due to SOHMA is not producing HD ENCs. 33
