Acknowledgements

Secure subscription checkout, billing management, and account-specific invoice history and PDF receipts. Billing documents are available only to their authenticated account owner.

Weather forecasts and current atmospheric conditions for Calm planning and geo context. The sailing layer also reads its hourly 10 m wind (speed, direction, gusts, in knots) on a small grid over the viewport for the wind-arrow overlay and the tacking planner.

Seasonal climate normals used for planning windows beyond short-term forecasts.

Sea-surface temperature context for marine and coastal sessions.

Tide predictions, coastal water timing, and measured station water temperature (water_temperature product) used in Scout guidance + the Activity model's temperature term. Tidal current predictions (currentpredictions product: max flood/ebb speed and direction at ~600 New England stations) give the Current & Structure overlay its saltwater velocity — interpolated onto the channel network by the tile pipeline as `hydraulic_flow` / `hydraulic_station` — and the station datums behind the tidal bands.

River flow, water temperature, and gage-height observations for freshwater conditions.

National stream-reach geometry (NetworkNHDFlowline) — the provider reserved for the deferred per-waterbody freshwater likelihood layer in Scout.

Coarse native-range maps (HUC8) for 123 freshwater fish species, ingested into fish_native_ranges to drive the watershed-grain freshwater range / likelihood overlay.

Spatially-referenced occurrence records for introduced freshwater fish, aggregated to HUC8 watersheds (joined to WBD boundaries) and baked DB-free to a PMTiles range fill. Drives the Scout 'Introduced (NAS)' overlay — the only range surface for species with no native range here (brown trout, stocked rainbows).

Species habitat summaries (preferred depth, substrate, current, vegetation) curated into the per-species habitat-preference table that feeds the fused 'Activity' likelihood model's habitatMatch term. Combined with state fisheries habitat profiles.

Live occurrence-density map tiles (GBIF Maps API) streamed client-side to drive the Scout 'Observed density' freshwater overlay — where a species has actually been recorded, hex-binned by count. No pipeline, no DB; complements the curated native (Aquatic GAP) and introduced (NAS) range fills.

National hydrologic-unit (HUC) boundary polygons — the watershed geometry the NAS occurrences are joined to for the introduced-range (HUC8) fill, and the basis for the freshwater native-range overlay.

Historical flow normals used for seasonal planning and comparisons.

Elevation samples used for terrain-aware guidance and route context.

Bathymetry tiles and derived contours used for coastal and marine map overlays.

Bird frequency and notable sightings used in habitat, birding context, and the Endurance Capture seasonal species picker.

Species observations used for ecological and place-based natural history context.

Flood-zone overlays used in site and risk context.

Walkability and urban-form metrics used in urban and architectural context.

Demographic context used for neighborhood and place interpretation.

Wetland polygons with Cowardin codes. The map's wetland layer, and the activity grid's aquatic-vegetation term: estuarine/lacustrine aquatic bed (eelgrass, submerged vegetation) and emergent marsh read from the NWI ATTRIBUTE code per cell.

30 m land cover (2021/2024). The map's vegetation layer is classified from it, and the activity grid reads that class at each water cell as shoreline cover for the habitat term.

Nearby building context and map features used in site interpretation. The sailing layer queries it for harbours, marinas, chandleries, sailmakers, fuel docks, lighthouses and the pubs within walking distance of a marina.

Official US nautical chart raster (nowcoast:enc WMTS) proxied as the nautical chart overlay in Scout and on the Glaukas sailmaker chart — charted depths, contours, aids to navigation and restricted areas in NOAA symbology. The S-57 ENC cells themselves are the input to the nautical vector tile build.

Worldwide buoys, beacons, lights and harbour marks rendered from OpenStreetMap seamark tagging. The nautical-chart base map option and the sailing nautical chart overlay draw it over the survey bathymetry.

Walk, transit, and bike scores used for urban mobility context.

Road congestion and flow context used for urban timing and route conditions.

Static map images for saved and recommended locations in entry context and the Inspiration pinboard.

Reverse geocoding used to label GPS-selected locations in endurance and scribble flows.

Place search and venue context used in Slate suggestions and geo guidance.

Nearby and text place search used in location discovery and suggestions.

Recreation areas and facilities used in outdoor location suggestions.

Native vs. introduced status for freshwater game fish, used to colour stream reaches in the Scout freshwater overlay.

State fish-stocking records (waterbody, species, quantity) used to distinguish stocked from wild freshwater populations in Scout.

Authoritative state boundaries used to partition the Coast Survey map. Each build region processes a buffered area for context but emits only the non-overlapping core it owns, so the states merge into one archive with nothing drawn twice. Open water is allocated to the nearest state's boundary rather than clipped away, which is what keeps offshore bathymetry and the tidal bands intact.

Destination and local place context used in travel and location guidance.

Structured place and entity lookup used in location search.

Regional hatch timing for common trout-stream insects (mayfly, caddis, stonefly, midge) — season, water-temperature and growing-degree-day emergence windows, life stages, and matching fly patterns. Seeds the entomology forage stamps.

Vetted category-level, taxonomic-family, and exact-species silhouettes imported from PhyloPic into local assets and uploaded to Supabase Storage for ecology imagery, including structured coastal marine mammal, seabird, shellfish, and forage-fish coverage.

Curated reference profiles for 289 gamefish, forage fish, invertebrate/amphibian prey, and salmonid subspecies/hybrids — temperature preferences, habitat, seasonal peak months by region, fly/lure matches, a species-relationship graph (subspecies, life-history forms, color morphs, hybrids), and curated native/introduced + historic-range / migration-corridor / thermal-limit facts. Compiled from public fisheries science (FishBase, NOAA/MRIP & NOAA Fisheries, USGS NAS, ASMFC, Bonefish & Tarpon Trust, Western Native Trout Initiative, and peer-reviewed literature) with editorial synthesis; powers the seasonal food-web, target-species, and unified range/activity models.

Locally stored world heritage records used in search and place suggestions.