The Arizona Water Observatory (AWO) provides water quality and water supply information for Arizona's water resources.
NOAA National Water Model Channel Routing Output
contains simulated flow and channel-related variables for river and stream segments, representing the movement of water through the channel network.
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NOAA National Water Model Land Data Assimilation System Output
aims to produce high quality fields of land surface states and fluxes by integrating satellite and ground-based observational data products
NOAA National Water Model Reach to Reach Routing Output
provides simulated streamflow and related hydrologic variables for millions of individual river and stream reaches across the U.S., representing how water is routed downstream through the national river network.
provides simulated water levels, storage, and outflows for lakes and reservoirs across the U.S. It delivers time-series data that supports monitoring, forecasting, and management of lake and reservoir conditions within the hydrologic network.
NOAA National Water Model Groundwater Output
provides data on the flux of water that moves from the modeled groundwater system into the surface water system or out of the groundwater storage component. The geometry for each item is the centroid of the associated NHD Plus catchment.
provides a subset of the USACE Corps Water Management System (CWMS) API specifically focused on water control management data
USDA Snowpack Telemetry Network (SNOTEL)
is an automated system of snowpack and related climate sensors primarily in mountainous regions in the Western United States which aims to collect data like snow water equivalent, accumulated precipitation, and air temperature.
USDA Air and Water Database (AWDB) Forecasts
provides predictions for climate and water supply conditions. It uses the same endpoint as SNOTEL but includes only forecasts
NOAA River Forecast Center Seasonal Forecasts
aggregates water supply forecast data from all regional NOAA river forecast centers into one collection.
California Nevada River Forecast Center Data Source
Colorado Basin River Forecast Center Data Source
Northwest River Forecast Center Data Source
USGS Parameter-elevation Regressions on Independent Slopes Model (PRISM)
provides a raster for high-resolution spatial climate data, including precipitation, temperature, and other climate variables, derived by combining point-based weather observations with digital elevation and other geographic information. Hosted by USGS; originally generated by Oregon State University
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NOAA River Stage Forecast 24 Hours / 1 day from now
predicts the water level (stage) in rivers and streams 2 days from now and is updated every 15-minutes
predicts the water level (stage) in rivers and streams 3 days from now and is updated every 15-minutes
predicts the water level (stage) in rivers and streams 10 days from now and is updated every 15-minutes
USGS National Map 3D Elevation Program (3DEP)
provides nationwide topographic elevation data, including bare-earth digital elevation models (DEMs) and derivative products such as hillshades, contours, and 3D surface models.
The list of all map services available by the USGS
provides a raster for classification of land cover types across the Contiguous United States (CONUS), including forests, wetlands, urban areas, agricultural lands, and water bodies. It is derived from satellite imagery and other remote sensing data
List of all map services available by the USGS
Arizona Department of Water Resources Groundwater Site Inventory
consists of field-verified data regarding wells and springs collected by personnel from the Hydrology Division's Basic Data Section, the U.S. Geological Survey and other co-operating agencies. This collection contains additional info joined from the Arizona Wells 55 Registry to enrich well metadata.
ADWR Interactive Maps and Data Documentation
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USGS Principal Aquifers in the Colorado Basin States
contains data from the Ground Water Atlas of the United States (published as part of the National Atlas in 1998, revised 2003) and indicates the areal extent of the uppermost principal aquifers on a national scale.
Arizona Department of Water Resources Active Management Areas
contains designated groundwater-management zones where water withdrawals are under regulatory oversight to address overdraft and ensure long-term sustainability
Arizona Department of Water Resources Groundwater Basins
contains the list of groundwater basins in Arizona. According to ARS 45-402(13) "Groundwater basin" means an area which, as nearly as known facts permit as determined by the director pursuant to this chapter, may be designated so as to enclose a relatively hydrologically distinct body or related bodies of groundwater, which shall be described horizontally by surface description.
USBR Reclamation Information Sharing Environment
contains information about USBR projects in the western United States such as dams, reservoirs, and powerplants.
contains data from NASA's Gravity Recovery and Climate Experiment (GRACE; 2002-2017) and GRACE Follow On (GRACE-FO; 2018-present) satellites, which detect small changes in the Earth's gravity field caused by the redistribution of water on and beneath the land surface. The paired satellites travel about 137 miles (220 km) apart at an altitude of 300 miles (485 km) and record small changes in the distance separating them as they encounter variations in the Earth's gravitational field.
NASA Soil Moisture Active Passive L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data, Version 8 (SPL4SMGP)
contains data for average geophysical land surface fields that are output by the L4_SM algorithm. Contains SMAP L-band brightness temperature data from descending and ascending half-orbit satellite passes assimilated into a land surface model