WEND Update MACHC 2014 WENDWG 4 4 rd

WEND Update MACHC 2014

WENDWG 4 4 rd Meeting held March 18 -19, 2014 Highlights Review of WEND principles and governance ENC Issues (Gaps and Overlaps) WEND Database

Review of WEND Principles and Governance • Establishing a minimum set of RENC standards • Will enable the possibility of the establishment of additional RENCs Developed a procedure for resolving overlapping ENC data Submitted to IRCC 5 Decision: RENCs to first use the procedure on overlaps as an IRCC procedure until more input is received and then possibly propose this to be an IHO resolution.

Draft Procedure for Resolving Overlaps 1. Criteria for Assessing the Risks a) b) c) d) e) Geographical location of the overlap (port approaches worse than deep water) and shipping density in that area (many ships worse than few). Size of the area of overlapping data (large is worse than small). Scale of the overlapping cells (large scale probably worse than small scale but the quality of the different scales is also a factor as some ECDIS display the larger scale automatically where overlaps occur). Shipping route patterns - the direction that ships usually transit through the area covered by the overlapping data (where there is a large north to south overlap it would potentially present a greater risk where ships are normally heading north or south than where they are normally heading east or west). Differences in the overlapping data relating to positions of the same feature and also the existence or non-existence of features (many worse than few).

Draft Procedure for Resolving Overlaps 2. Initial Procedures for Addressing the Risks at the ENC Producer level a)ENC Producer MS which have overlaps within their own coverage should, as soon as possible, crop the cells to eliminate the overlap. b)Where possible, ENC Producer MS which have overlaps with another ENC Producer MS’ coverage should take the initiative in discussing arrangements with the other ENC Producer MS for cropping either or both cells to eliminate the overlap. Agreeing an exchange of data may be helpful to facilitate such cropping. c)Where eliminating overlaps is not possible, ENC Producer MS should nonetheless examine the data within the areas of overlap with a view to ensuring, wherever possible, that the data is the same. In prioritizing this work, account should be taken of the criteria in paragraph 1 above. Agreeing an exchange of data may be helpful to facilitate the comparison. d)When it is not possible to eliminate overlaps the ENC Producer MS should align their updating regimes within the overlap areas.

Draft Procedure for Resolving Overlaps 3. Following Procedures at the RHC level The assessment of what may be navigationally significant should be guided by the best practices The RHC may seek the assistance of a Regional ENC Coordination Centre (RENC) to assist in the implementation of this risk assessment and should take a proactive approach with the ENC Producer MS, to resolve overlap issues within the region.

ENC Issues (Gaps and Overlaps) • ENC Gaps for the MACHC • Reported in March 2014 PORT Castaway Cay Palua El Tablazo Maracaibo San Marcos Half Moon Cay Puerto Ordaz Pascagoula light. area Donaldsonville Puerto Costa Maya Charco Azul Coco Cay Matanzas El Palito Cayo Moa Cienfuegos Turbo Panama Canal Great Stirrup Cay Caripito Cabo Rojo Puerto Carenero Puerto Cabello Puerto Miranda Galveston light. are Puerto Castilla COUNTRY RANK 2006 Bahamas Venezuela Mexico Bahamas Venezuela United States of America Mexico Panama Bahamas Venezuela Cuba Colombia Panama Bahamas Venezuela Dominican Republic Venezuela United States of America Honduras 1498 967 1942 705 1230 1461 618 1888 1555 1157 905 1177 1079 540 1761 1310 520 11 1898 1624 1363 1890 219 468 335 1996

ENC Issues (Gaps and Overlaps) ENC Overlaps for the MACHC reported March 2014 CELLNAME US 4 LA 15 M US 5 TX 32 M US 3 GC 01 M US 1 GC 09 M CELLNAME_1 US 4 LA 13 M US 5 TX 26 M MX 300711 GB 1 A 20 M 2 All Overlaps have since been resolved

WEND Database • WEND database • consists of data from IC-ENC, Primar and future RENCs • IHB is also developing a ENC coverage catalogue • Need to identify the type of metadata that will populate the catalogue

Next Meeting: Singapore, March 3 -5 Thank You!