Tiles at half the size, with land areas

Maritime zone tiles for @openwaters/maritime-zones 0.2.0. The package downloads the tiles it needs from this release and checks each against the sha256 in tiles.json.

636 seekable zstd tiles (256 KiB frames, level 19), 142 MB in total. Sizes and SHA-256 cover the compressed downloads.

Zone and boundary features: Marine Regions Maritime Boundaries Geodatabase (Flanders Marine Institute), CC-BY 4.0. Land features: Flanders Marine Institute (2020). World Countries Geodatabase, CC-BY 4.0, adapted from ESRI World Countries 2014 with DeLorme (2014) source data. Country polygon rings come from MarineRegions:worldcountries_esri_2014 and include inland borders and holes. The source hashes are recorded in upstream.lock.json. Marine Regions land_v9 is not used.

VLIZ has approved derived-tile redistribution and the monthly upstream-check load. Maintainers monitor Marine Regions updates to avoid distributing deprecated versions. World Countries supplies a proxy for normal baselines, not a complete legal-baseline model. The v0.1.0 release uses OpenStreetMap coastlines and retains its own NOTICE and ODbL 1.0 terms. npm publication is authorized and follows the matching tile release; see CONTRIBUTING.md for publishing instructions.

• Internal Waters (v4, world, 2023): 113 features
• Archipelagic Waters (v4, world, 2023): 23 features
• Territorial Seas (12 NM) (v4, world, 2023): 230 features
• Contiguous Zones (24 NM) (v4, world, 2023): 220 features
• Exclusive Economic Zones (200 NM) (v12, world, 2023): 285 features
• High Seas (v2, world, 2024): 1 feature
• World countries (ESRI, 2014): 294 features

Not for navigation. Marine Regions data "is not meant to be used for legal, economical … or navigational purposes" and "has no legal value whatsoever". See the attached NOTICE for the citation and licence of each layer.