ENC PRODUCTION PROCESS DESIGN FOR CROATIAN PART OF THE
ADRIATIC SEA AREA
T.D. Leder1, M. Lapaine2
1 - Hydrographic Institute of the Republic of Croatia, Split
2 - Geodetic faculty, Zagreb
nenad.leder@hhi.hr
Hydrographic Institute of the
Republic of Croatia (HIRC) has been producing Electronic Navigational Charts
(ENC) since 2001 in cooperation with C-map Italy. ENC’s cells have been
produced based on HIRC paper charts. All ENC cell range (105 cells) nowadays is
at the end of validation and quality control process faze. Production plan in
HIRC is that at the end of year 2006 (December) all navigation purposes ENC
cells, covering whole Croatian area, will be on PRIMAR distribution centre.
The process of ENC production,
proposed by the Italian company C-Map, did not prove to conform to specific
qualities of the Croatian part of the Adriatic as archipelagic sea and HIRC's
135 years long tradition of chart production. It is the reason why there
occurred the need for a redesign of the process of ENC production.
HIRC intended to start the
production process redesign with planning of the national ENC cell production
very soon, selecting and defining:
geographic areas and usage bands for each area (scale range to be used for
particular navigational purposes), usage scale or optimal compilation scale for
particular navigational purpose, and dimensions of particular ENC cells for
each of the six main navigational purposes.
Within production process redesign a new classification of ENC cells for the Croatian part of the Adriatic Sea will be proposed in the form of regular rectangular network, offering multiple advantages over the classification based on paper charts. Classification will be made according to CHRIS WG „Recommendation for Consistent ENC Data Encoding“. Also, a usage bands and compilation scales for each ENC usage band will be proposed.