Legacy "ISU AgClimate" 1986-~2013
"ISU Soil Moisture Network" ~2013-present

Minute/Hourly Data:

the present data collection interval from this network is every 15 minutes for the vineyard sites and every minute for the others. the minute interval data only started in 2021 though. the default download is to provide the hourly data.

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Reference Evapotranspiration (alfalfa)















The Ames-AEA, Ames-Kitchen, and Jefferson locations have the CS SoilVue 10 installed.


Vineyard Station-only Variables








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How should missing values be represented?:

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Description of variables in download

station
National Weather Service Location Identifier for the site. this is a five character identifier.
valid
Timestamp of the observation either in CST or CDT
tmpf
Air Temperature [F]
relh
Relative Humidity [%]
solar
Solar Radiation [Joule/m2]
precip
One Hour Precipitation [inch]
speed
Wind Speed [mph], 10 minute average, 10 ft above ground
drct
Wind Direction [degrees North], 10 minute average, 10 ft above ground
et
Potential Evapotranspiration (Alfalfa) [inch]
soil04t
4 inch Depth Soil Temperature [F]
soil12t
12 inch Depth Soil Temperature [F]
soil24t
24 inch Depth Soil Temperature [F]
soil50t
50 inch Depth Soil Temperature [F]
soil12vwc
12 inch Depth Soil Volumetric Water Content [%]
soil24vwc
24 inch Depth Soil Volumetric Water Content [%]
soil50vwc
50 inch Depth Soil Volumetric Water Content [%]