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Local Energy-budget Measurement (LEM) Weather Station Data



This data is from the University of Utah's LEMS instruments captured September - November  2012 and  April - June 2013 during the Mountain Terrain Atmospheric Modeling and Observations (MATERHORN-X) field campaign. LEMS are solar powered, low-cost Energy-budget Measurement Stations, which have been designed and assembled at the University of Utah EFD lab. LEMS monitor incoming solar radiation (LI-200), 2-m air temperature and relative humidity (Sensirion SHT 15, Humidity +/- 2-5% Temperature +/- 0.5K), air pressure (Bosch BMP085), surface temperature (Zytemp TN9), as well as soil temperature and moisture (Decagon 5TM) at two levels below ground. Data are logged using an Arduino-based open source controller with a data logger that can store up to 2 GB of data. These are the original raw data files and have not undergone quality control procedures. These files are in ASCII CSV format with a header line. Data filenames contain the specific instrument ID. The time stamps are based off of UTC time for all the instruments for the MATERHORN-X data, unless it was stated otherwise.  Please see the README file for more information.

Data access

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Additional information

Data Quality final
  • 1.0 (2017-04-10)
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Related projects
Spatial Type unknown
Frequency 10 second
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2012-09-27 00:00:00
End datetime 2013-06-05 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 40.13494, Minimum (South) Latitude: 40.04003
Minimum (West) Longitude: -113.45104, Maximum (East) Longitude: -113.11196

Primary point of contact information

EOL Data Support <>

Additional contact information


Pardyjak, E. 2017. Local Energy-budget Measurement (LEM) Weather Station Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 15 Jul 2024.

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