Annual apparent fishing effort from AIS vessel tracking, aggregated to H3 resolution-6 hexagonal cells (~36 km²) by gear type. Annual Cloud-Optimized GeoTIFFs at 0.1° resolution are also available for raster visualization.
s3://public-gfw/Hex columns: h6 (H3 res-6 cell), h0 (partition key), year, geartype, fishing_hours, ais_hours, vessel_month_count
H3 resolution: 6 (~36 km² avg cell area). Source data is 0.1° (~123 km²) monthly by flag+geartype. Each 0.1° cell center maps to ~3 H3 res-6 cells. Flag state is dropped in aggregation; gear type is preserved.
Partition layout: Hive-partitioned by h0 (H3 resolution-0 parent cell) — the standard layout shared by all datasets in this catalog. All 13 years (2012–2024) are stored together within each h0 file; filter with WHERE year = YYYY for single-year queries.
Values present in data: dredge_fishing, fishing (unclassified), fixed_gear (subtype uncertain), other_purse_seines, pole_and_line, pots_and_traps, purse_seines, seiners, set_gillnets, set_longlines, trawlers, trollers, tuna_purse_seines
No PMTiles are provided — use the annual COGs with a titiler raster tile source for web map visualization:
Replace 2022 with any year 2012–2024. Adjust rescale (fishing hours range) to taste.
ais_hours is total AIS presence time (fishing + transiting + loitering); always ≥ fishing_hours.vessel_month_count sums monthly MMSI presences — not unique vessels. A vessel active 12 months contributes 12.fishing and fixed_gear are catch-all gear types used when the model cannot classify more specifically.