Center-pivot polygons from GMIE (UFFDA calls this set GCPIS)
Mapped center-pivot irrigation circles worldwide. The second dataset behind UFFDA's irrigated-fields layer.
What this is
Polygons of center-pivot irrigation systems — the circular fields a pivot arm sweeps — released as part of GMIE, a global maximum irrigation extent dataset. UFFDA uses them to flag whether a field boundary sits under a pivot: field boundaries are drawn as parcels, so a pivot field usually renders as a square with a circle inside it. Naming, plainly: GCPIS is UFFDA's internal shorthand for this pivot layer, not the name the authors published it under. The upstream dataset is GMIE.
Why we surface it
Pivot or not is the single most useful thing to know about how a field is watered, and it is not recoverable from the boundary shape. This is the open dataset that supplies it.
What you can do with it
Shown for commercial use. Personal, research, and nonprofit use is often more permissive — switch the verdict lens on the catalog.
- Internal / individual use
- Public domain. Use it for anything — internal, resale, AI training, closed products. No attribution legally required (crediting the source is still the decent thing to do).
- Redistribute the data
- Public domain. Use it for anything — internal, resale, AI training, closed products. No attribution legally required (crediting the source is still the decent thing to do).
- Republish a derivative
- Public domain. Use it for anything — internal, resale, AI training, closed products. No attribution legally required (crediting the source is still the decent thing to do).
- Build into a private product
- Public domain. Use it for anything — internal, resale, AI training, closed products. No attribution legally required (crediting the source is still the decent thing to do).
This decoder is a starting point, not legal advice. For commercial deployment, run the actual license terms past someone who reads them for a living.
◆ Schema · Sample · Citation
No schema, sample, or citation on file for this one yet.
Related — same domain
- LANID — Landsat-based Irrigation Dataset for the United StatesCC-BY 4.0 for the 1997–2017 core (credit Xie & Lark, University of Wisconsin–Madison). The 2018–2020 extension is a US federal work, so uncopyrighted — but USGS asks it be passed on unedited and cited, and we reproject and tile it. Cite that half and say what changed; it isn't unconditional public domain.
- FAO WaPOR v3 (FAO)CC-BY-SA 4.0 (v3; attribution + share-alike on redistribution; commercial use permitted)
- FAO GMIA / AQUASTAT irrigated areas (FAO)CC-BY 4.0 with FAO commercial-promotion restriction
- GRACE / GRACE-FO (NASA JPL / GFZ)Public domain