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Regional Surface Meteorological Networks
   
Great Lakes Environmental Research Laboratory (GLERL) Real-Time Meteorological Observation Network - The GLERL operates this network of 7 stations with locations primarily around southern Lake Michigan (1 in Indiana). The network provides up to 5-minute observations of air temperature, wind speed, and wind direction. For further information visit the GLERL network home page.
   
WTWO WeatherNet - WTWO-TV in Terra Haute, Indiana operates this network of 14 stations located primarily at schools throughout westcentral Indiana (13 in Indiana). The network provides up to 1-minute observations of air temperature, relative humidity, wind speed, wind direction, precipitation, and barometric pressure. For further information visit the WTWO network page.
   
WANE WeatherNet - WANE-TV in Ft. Wayne, Indiana operates this network of 20 stations located primarily at schools throughout northeastern Indiana and northwestern Ohio (16 in Indiana). The network provides up to 1-minute observations of air temperature, relative humidity, wind speed, wind direction, precipitation, and barometric pressure. For further information visit the WANE network page.
   
WSNS WeatherNet - WSNS-TV in Chicago, Illinois operates this network of 187 stations located primarily at schools throughout northern Illinois (10 in Indiana). The network provides up to 1-minute observations of air temperature, relative humidity, wind speed, wind direction, precipitation, and barometric pressure. For further information visit the WSNS network page. No map yet.
   
WSBT WeatherNet - WSBT-TV in South Bend, Indiana operates this network of 13 stations located primarily at schools throughout northern Indiana (10 in Indiana). The network provides up to 1-minute observations of air temperature, relative humidity, wind speed, wind direction, precipitation, and barometric pressure. For further information visit the WSBT network page.
   
WFIE WeatherNet - WFIE-TV in Evansville, Indiana operates this network of 14 stations located primarily at schools throughout southwestern Indiana and western Kentucky (6 in Indiana). The network provides up to 1-minute observations of air temperature, relative humidity, wind speed, wind direction, precipitation, and barometric pressure. For further information visit the WFIE network page.
   
WMAQ WeatherNet - WMAQ-TV in Chicago, Illinois operates this network of 113 stations located primarily at schools throughout northern Illinois (4 in Indiana). The network provides up to 1-minute observations of air temperature, relative humidity, wind speed, wind direction, precipitation, and barometric pressure. For further information visit the WMAQ network page.
   
WHIO WeatherNet - WHIO-TV in Dayton, Ohio operates this network of 28 stations located primarily at schools in and around Dayton, Ohio (1 in Indiana). The network provides up to 1-minute observations of air temperature, relative humidity, wind speed, wind direction, precipitation, and barometric pressure. For further information visit the WHIO network page.
WTVQ WeatherNet - WTVQ-TV in Lexington, Kentucky operates this network of 39 stations located primarily at schools throughout Kentucky and 1 station in Indiana. The network provides up to 1-minute observations of air temperature, relative humidity, wind speed, wind direction, precipitation, and barometric pressure. For further information visit the WTVQ network page. No map yet.
   
State and Local Surface Meteorological Networks
   
Purdue Automated Agricultural Weather Station Network (PAAWS) - Purdue University operates this network of 9 stations at each of its Agricultural Research Centers throughout the state of Indiana. The network provides 30-minute observations of air temperature, wind speed, wind direction, solar radiation, precipitation, and soil temperature at a depth of 4 cm. For further information visit the PAAWS home page.
   
Road Weather Information System (RWIS) - The Indiana Department of Transportation (DOT) operates this network of 31 stations located throughout Indiana. The network provides variable temporal resolution observations of air temperature, relative humidity, dew point, wind speed, wind direction, visibility, and precipitation (yes/no). For further information visit the Indiana DOT RWIS web page. This data set is included in the NOAA/FSL MADIS data set. Map at Web Site
   
Indiana Air Monitoring Network - The Indiana Department of Environmental Management Office of Air Quality operates this network of 7 stations with locations around the state of Indiana. The network provides hourly observations of wind speed, wind direction (all sites), air temperature, relative humidity (6 sites), solar radiation (2 sites), and barometric pressure (1 site). For further information visit the Air Monitoring Branch.
   
WISH WeatherNet - WISH-TV in Indianapolis, Indiana operates this network of 56 stations located primarily at schools throughout central Indiana. The network provides up to 1-minute observations of air temperature, relative humidity, wind speed, wind direction, precipitation, and barometric pressure. For further information visit the WISH network page.
   
Precipitation and Radar Networks    
Community Collaborative Rain, Hail and Snow Network (CoCoRaHS) - The Colorado Climate Center at Colorado State University overseas this cooperative network of observers located throughout Indiana. The network provides daily observations of precipitation, snowfall, and snow depth. Hailpad observations are also made at many locations. For further information visit the CoCoRaHS home page. No map.
   
NOAA/National Centers for Environmental Prediction (NCEP) Hourly Precipitation Data - NOAA/NCEP routinely develops a National Multi-sensor Hourly Precipitation Analysis (Stage II) data set from hourly radar precipitation estimates and from hourly gage reports. The gage data includes hourly observations from ~4000 gages across the US (45 in Indiana) collected by the NOAA River Forecast Centers and sent to NCEP. Further information on these data is available at: http://wwwt.emc.ncep.noaa.gov/mmb/ylin/pcpanl/.
   
NOAA/NWS Cooperative Observer 15-minute Precipitation Network - The NOAA/NWS routinely collects 15-minute observations of precipitation from Fisher-Porter and Universal rain gages operated by 2777 cooperative observers located throughout the US (77 in Indiana). These data are archived at NOAA/NCDC as data set TD 3260. For further information visit the NOAA/NCDC TD3260 page at: http://ols.nndc.noaa.gov/plolstore/plsql/olstore.prodspecific?prodnum=C00505-TAP-A0001
   
Weather Surveillance Radar 1988 Doppler (WSR-88D) Network - The NOAA/NWS and the Department of Defense operate this network of 143 WSR-88D radars across the contiguous US (3 in Indiana). The Level II data are the three meteorological base data quantities (reflectivity, mean radial velocity, and spectrum width) and are recorded at all NWS and most DOD sites. Level II data are then processed in order to create a number of meteorological analysis products known as Level III data. Level III data are recorded at the NWS sites. The Level III products included base reflectivity, base spectrum width, base velocity, composite reflectivity, echo tops, velocity azimuth display (VAD) wind profile, vertically integrated liquid (VIL), 1-hour precipitation, storm total precipitation, hail index overlay, mesocyclone overlay, severe weather probability overlay, storm structure, storm tracking information overlay, and tornadic vortex signature overlay. All Level II and III data are archived at NOAA/NCDC. For further information visit the NOAA/NCDC Radar Resources page at: http://www.ncdc.noaa.gov/oa/radar/radarresources.html or the NOAA Radar Operations Center at: http://www.roc.noaa.gov/.
   
Radiation and Flux Networks
   
United States Department of Agriculture (USDA) UV-B Monitoring Network - The USDA operates this network of 29 stations with locations throughout the US (1 in Indiana). The network provides 3-minute observations of spectral total/direct/diffuse radiation, air temperature, relative humidity, solar radiation, barometric pressure, and photosynthetically active radiation. For further information visit the
   
Ameriflux Network - The Ameriflux network consists of 54 sites conducting long-term measurements of CO2, water and energy fluxes throughout the US (1 in Indiana). The typical observational frequency is 30 minutes. The parameters measured at each site vary, but Ameriflux has defined a core set of parameters that most sites collect, including fluxes of CO2, energy and water, basic meteorological and radiation parameters, and soil temperature and moisture. For further information visit the Ameriflux home page at: http://public.ornl.gov/ameriflux/Participants/Sites/Map/index.cfm.
   
Soil Networks
   
North Central River Forecast Center (NCRFC) Soil Temperature Network - The NCRFC operates this network of 47 stations (1 in Indiana) that collect weekly readings of soil temperature at depths of 2, 4, 8, 20, 40 and 60 in at locations throughout the north central US. For further information visit the NCRFC Soil Temperature Network web page.
   
Hydrology Networks
   
United States Geological Survey (USGS) Streamflow Network - The USGS (part of the US Department of the Interior) operates this network of 7237 streamflow gages (141 in Indiana) at locations throughout the US. The network provides hourly or more frequent observations of stage (water level) from which discharge (flow) is computed using a stage-discharge rating relation. The rating is defined by occasional direct current-meter measurements of discharge. All data are available through the USGS and the district offices in each state. Many of these gages provide realtime data relayed via the GOES satellite data collection system. The realtime data are provisional data that have not been reviewed or edited. These realtime data may be subject to significant change and are not citeable until reviewed and approved by the USGS. Realtime data may be changed after review because the stage-discharge relationship may have been affected by: 1) backwater from ice or debris; 2) algal and aquatic growth in the stream; 3) sediment movement; and 4) malfunction of recording equipment. Each station record is considered provisional until the data are published. The data are usually published with 6 months of the end of the water year (1 October to 30 September). Data users are cautioned to consider carefully the provisional nature of the information before using it. For further information on the USGS streamflow network visit the USGS Water Resources of the United States page or the USGS Indiana District Office home page.
   
Upper Air Networks
   
NOAA Profiler Network (NPN) - The NOAA/Forecast Systems Laboratory (FSL) operates this network of 32 404 MHz wind profilers primarily across the central portion of the United States (1 in Indiana). Each site provides 6-minute and hourly vertical profiles of wind speed and wind direction. Additionally, 11 of the NPN sites have a collocated Radio Acoustic Sounding System (RASS) that provides 6-minute and hourly vertical profiles of virtual temperature (none in Indiana). For further information visit the NPN home page. An archive of the hourly wind profiles is available from NCAR/SCD.
   
Ground Based Global Positioning System (GPS) Meteorology Demonstration Network (GPS-MET) - The NOAA/FSL ingests data from 323 GPS locations around the US operated by many different agencies (2 in Indiana). Typically each location provides 30-minute observations of integrated precipitatable water along with a number of surface meteorology parameters (air temperature, relative humidity, barometric pressure, etc). For further information visit the GPS-MET home page.