WORLDWIDE ENC DATABASE WORKING GROUP WENDWG NORTH SEA

WORLDWIDE ENC DATABASE WORKING GROUP (WENDWG) NORTH SEA HYDROGRAPHIC COMMISSION (NSHC) Membership: Belgium, Denmark, France, Germany, Iceland, Ireland, Netherlands, Norway, Sweden, United Kingdom. NSHC Report - REGION D Implementation of ENC Schemes Nigel Sutton (UK) International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Status of the ENC Scheme in Region D Overview NSHC ENC COVERAGE Usage Band 1 15 ENCs International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Status of the ENC Scheme in Region D General NSHC ENC COVERAGE Usage Band 2 71 ENCs International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Status of the ENC Scheme in Region D Coastal NSHC ENC COVERAGE Usage Band 3 200 ENCs International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Status of the ENC Scheme in Region D Approaches NSHC ENC COVERAGE Usage Band 4 932 ENCs International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Status of the ENC Scheme in Region D Harbour NSHC ENC COVERAGE Usage Band 5 817 ENCs International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Status of the ENC Scheme in Region D Berthing NSHC ENC COVERAGE Usage Band 6 160 ENCs International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Coverage issues Development of the NSHC ENC scheme The ENC scheme of Greenland is still being developed by Denmark. International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Existence of overlapping ENCs that may have a possible impact on safe navigation SUMMARY OF OVERLAP REPORTS AS AT DECEMBER 2018 Cellname 1 DK 1 NORSO GB 100160 NL 1 NZ 100 DK 2 NORSO NL 21037 P NO 2 A 0404 NO 2 B 0400 NO 2 B 0404 NO 2 B 0412 NO 2 B 0800 NO 2 B 0804 NO 2 B 1200 DK 3 HORRO FR 367350 NL 301505 NL 302593 NO 3 A 0404 NO 3 B 0800 NO 3 B 1200 DE 121000 GB 100160 DE 221000 GB 2 C 2182 DK 2 NORSO GB 2 C 2182 GB 22182 D DE 321001 BE 3 VLBNK GB 301187 DE 321002 GB 300278 GB 300272 GB 300291 GB 300295 Usage Band Risk ICCWG Status 1 1 1 2 2 2 2 2 3 3 3 3 3 Low Low Low Low Low Low Live Live Live Live Live Live International Hydrographic Organization Organisation Hydrographique Internationale IC-ENC Status Low risk Accept No record Low risk Resolved Low risk Accept No record Low risk Low risk Current situation ENC overlaps (2018): Requires investigaion UB 3 = 9 UB 2 = 9 UB 1 = 3 Requires investigaion WENDWG 9, Brest, France 26 – 28 February 2019 Overlaps are low risk

Existence of overlapping ENCs that may have a possible impact on safe navigation Overview NSHC ENC OVERLAPS Usage Band 1 3 ENC overlaps International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Existence of overlapping ENCs that may have a possible impact on safe navigation General NSHC ENC OVERLAPS Usage Band 2 9 ENC overlaps International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Existence of overlapping ENCs that may have a possible impact on safe navigation Coastal NSHC ENC OVERLAPS Usage Band 3 9 ENC overlaps International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Coverage issues, gaps and risk assessment analysis Overview NSHC ENC GAPS & OVERLAPS Usage Band 1 Example of gaps and overlaps on diagonals International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Coverage issues, gaps and risk assessment analysis Overview NSHC ENC GAPS Usage Band 1 2 ENCs International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Coverage issues, gaps and risk assessment analysis General NSHC ENC GAPS Usage Band 2 8 ENC gaps International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Problems or outstanding issues, Recommendations All overlaps and gaps occur on diagonals and along national maritime boundaries - Low risk NSHC overlaps and gaps range from 5 m to 30 m - Challenging process to reduce low risk overlaps and gaps to S-57 guidance of ≤ 5 m (S-57 Appendix B. 1 Annex A) - Should the 5 m overlapping buffer zone used on adjoining national limits be increased? Overlaps and gaps on land - S-57 guidance on seamless ENC coverage advises that no overlaps and gaps on land should occur. - Should all low risk overlaps and gaps on land be resolved within a year? International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019

Actions requested of WENDWG is invited to note the report from NSHC. International Hydrographic Organization Organisation Hydrographique Internationale WENDWG 9, Brest, France 26 – 28 February 2019