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State Networks Regional and National Networks Additional Network Resources

Regional and National Data Networks

Data from many surface networks are available to the atmospheric science and hydrology communities.  Select a link for more detailed information on that network, or see the summary table below for an overview of available observations.

Go to the Interactive National Networks Map
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Summary Table of Regional and National Networks

Near real-time/archived data available for air temperature (AirT); relative humidity (RH); wind (speed, direction, sometimes gust); precipitation (Ppt); snowfall and snow depth (Snow), solar radiation (Solar); barometric pressure (Press); soil temperature at various levels; soil moisture at various levels; and derived dew point temperature (Td).  Number of stations are approximate and for the continental US.

Click on Network to go to description, click on map icon to see map of network stations.

Network Map Start Year Sites AirT RH Wind Ppt Solar Press Snow Soil T Soil M Td
ASOS Open map of network 1990s     850 X X X X   X       X
AWOS Open map of network 1990s     650 X X X X   X       X
AWDN Open map of network 1990s     147 X X X X X     X   X
CoCoRaHS Open map of network 1998 12,500       X     (X)      
GL Buoys Open map of network 1979 106 X   X     X        
HADS   1990s 15,000 (X) (X) (X) X             
US COOP Open map of network 1890   7,500 X     X     X      
FORTS Open map of network 1790-1892     326 X X X X   X X      
RAWS Open map of network 1980s 1,850 X X X X X     (X)    X
SCAN Open map of network 1991     165 X X X X X X   X X X
SWMP Open map of network 1995 28 X X X X X X         
USCRN Open map of network 2001     106 X X X X X     X X  
RCRN Open map of network 2006       92 X     X            
  • ASOS sites also report visibility, cloud height, sky condition.
  • AWOS sites variously report visibility, cloud height, sky condition, thunderstorm and lightning detection
  • AWDN sites estimate potential evapotranspiration
  • Some CoCoRAHS sites measure evapotranspiration
  • HADS sites also report river height
  • RAWS sites collect fuel temperature and moisture measurements
  • () not all sites report this parameter
  • Stations valid as of spring 2013


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