{"id":1280,"slug":"openet-irrigation-data-free","title":"NASA / USDA OpenET — free Landsat-based evapotranspiration data via API for automated irrigation decision-support","kind":"reference","scope":"business","status":"current","audiences":["kevin","smb-owner","candid-team"],"topics":["open-data","weather-data-demand"],"reference_body":"**Claim:** **NASA / USDA OpenET** provides **free Landsat-based evapotranspiration (ET) data**, with an API supporting automated retrieval into farm decision-support systems.\n\n**Source:** https://www.nasa.gov ; https://etdata.org\n\n**Confidence:** Verified.\n\n**Why this matters for Candid:** Worked example of high-resolution scientific open data with direct operational value — irrigation timing. For ag-tech / vineyard / orchard SMB clients this is the free first input, replacing paid satellite data.","rationale_body":null,"metadata":null,"links":{"outgoing":[],"incoming":[{"slug":"research-brief-data-driven-tools-smb-june-2026","title":"Research brief: live data and data-driven tools for SMBs — when it's an edge, when it's overkill (June 2026)","kind":"reference","scope":"business","link_type":"relates-to"},{"slug":"gallo-winery-openet-20pct-water-reduction","title":"E. & J. Gallo Winery — reported using OpenET ET data to \"reduce applied water by up to 20%\"","kind":"reference","scope":"business","link_type":"depends-on"},{"slug":"rule-rent-or-use-free-for-data-about-the-world","title":"R1 — Rent (or use free) for data ABOUT THE OUTSIDE WORLD; you will never out-collect the Census Bureau","kind":"rule","scope":"business","link_type":"depends-on"}]},"created_at":"2026-06-20T16:57:38.899Z","updated_at":"2026-06-20T16:57:38.899Z"}