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  "as_of": "2026-08-26",
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    {"id":"usgs-hydrography","agency":"USGS","title":"3D Hydrography Program / National Hydrography Dataset","variables":["flowline","catchment","waterbody","network"],"access":["TNM services","downloads"],"url":"https://www.usgs.gov/3d-hydrography-program","refresh":"publication-driven","rights":"public domain"},
    {"id":"prism","agency":"PRISM Climate Group","title":"PRISM Time Series","variables":["precipitation","temperature","dewpoint","vpd"],"resolution":["800 m","4 km"],"temporal":"monthly 1895–present; daily 1981–present","access":["web services","FTP"],"url":"https://prism.oregonstate.edu/data/","refresh":"rolling six-month revision","rights":"terms apply"},
    {"id":"noaa-ghcnd","agency":"NOAA NCEI","title":"Global Historical Climatology Network Daily","variables":["precipitation","temperature","snow"],"temporal":"station-dependent; Douglas-area records from 1903","access":["NCEI access service"],"url":"https://www.ncei.noaa.gov/products/land-based-station/global-historical-climatology-network-daily","refresh":"daily","rights":"open"},
    {"id":"noaa-atlas14","agency":"NOAA","title":"Atlas 14 Precipitation Frequency","variables":["depth-duration-frequency","annual exceedance probability"],"access":["PFDS exports"],"url":"https://hdsc.nws.noaa.gov/pfds/","refresh":"published revision","rights":"public"},
    {"id":"noaa-mrms","agency":"NOAA","title":"Multi-Radar/Multi-Sensor System","variables":["radar precipitation","gauge-corrected precipitation"],"resolution":"approximately 1 km","access":["NOAA real-time services","archive"],"url":"https://www.nssl.noaa.gov/projects/mrms/","refresh":"minutes","rights":"public"},
    {"id":"nasa-power","agency":"NASA","title":"POWER","variables":["precipitation","temperature","evapotranspiration","solar"],"temporal":"1981–present","access":["REST API"],"url":"https://power.larc.nasa.gov/docs/services/api/","refresh":"daily/monthly","rights":"open"},
    {"id":"adwr-gwsi","agency":"Arizona Department of Water Resources","title":"Groundwater Site Inventory","variables":["well","spring","water level","water quality"],"access":["GIS services","downloads"],"url":"https://www.azwater.gov/gis-data-and-maps","refresh":"ongoing","rights":"public"},
    {"id":"fema-nfhl","agency":"FEMA","title":"National Flood Hazard Layer","variables":["flood zone","base flood elevation","floodway"],"access":["REST","downloads"],"url":"https://www.fema.gov/flood-maps/national-flood-hazard-layer","refresh":"publication-driven","rights":"public"},
    {"id":"inegi-conagua","agency":"INEGI / CONAGUA","title":"Mexican terrain, hydrography, aquifer, and climate sources","variables":["dem","hydrography","aquifer","station climate"],"access":["downloads","services","documents"],"url":"https://www.inegi.org.mx/temas/relieve/","refresh":"product-dependent","rights":"product-dependent"}
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}