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irrigated-fields-tiles
PMTiles hosting for uffda.ag's Irrigated fields (BETA) map layer. See the release assets.
What this is: vector tiles of US field-boundary polygons meeting a validated irrigation definition (irrigated in at least 8 of the 24 satellite-mapped years 1997–2020, per LANID; fields 10 acres and up), with per-field attributes (acres, years irrigated, persistence score, mapped center-pivot overlap, county/state). Counts are mapped field-boundary polygons — not physical fields, farms, or irrigation machines.
Derived from: FTW — Fields of The World, Global 2024 edition (Taylor Geospatial and collaborators, CC-BY-4.0) · LANID, the Landsat-based Irrigation Dataset (Xie & Lark, Univ. of Wisconsin–Madison, CC-BY-4.0, 1997–2017; 2018–2020 extension by USGS, public domain) · GCPIS global center-pivot polygons (CC0) · U.S. Census Bureau TIGER/Line county reference (public domain).
License of the derived tiles: CC-BY-4.0. Attribution: "UFFDA (uffda.ag), derived from Fields of The World (CC-BY-4.0) and LANID (CC-BY-4.0)."
Methods write-up: https://uffda.ag/sandbox/irrigated-fields/whitepaper
Archival mirror of the same asset: https://github.com/uffda-ag/irrigated-fields-tiles/releases/tag/fields-2024-v1
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