maws: Automatic Weather Station

For the SGP site only, all of the MAWS sensors are mounted on a 10-m tiltable mast. For all other sites, including the first ARM Mobile Facility (AMF1), second ARM Mobile Facility (AMF2), third ARM Mobile Facility (AMF3), Eastern North Atlantic (ENA), and North Slope of Alaska (NSA), sensors will be co-located with the MET instruments.

The data are collected in one-minute averages of 10-second samples (as set in the logger configuration file US313v29.dtg created with Vaisala Lizard software) and collected daily (daily file created by Vaisala MetCast Observation Console software).



  • Fixed
  • AMF1
  • AMF2
  • AMF3

Active Instrument Locations

Facility Name Instrument Start Date
Central Facility, Lamont, OK 2014-09-08
Central Facility, Barrow AK 2019-06-10
Graciosa Island, Azores, Portugal 2017-05-05
Oliktok Point, Alaska; AMF3 2016-05-31


Lamraoui F, J Booth, and C Naud. 2018. "WRF hindcasts of cold front passages over the ARM Eastern North Atlantic Site: a sensitivity study." Monthly Weather Review, 146(8), 10.1175/MWR-D-17-0281.1.
Research Highlight


Maahn M, G de Boer, J Creamean, G Feingold, G McFarquhar, W Wu, and F Mei. 2017. "The observed influence of local anthropogenic pollution on northern Alaskan cloud properties." Atmospheric Chemistry and Physics, 17(23), doi:10.5194/acp-17-14709-2017.
Research Highlight

Holdridge DL and JA Kyrouac. 2017. Meteorological Automatic Weather Station (MAWS) Instrument Handbook. Ed. by Robert Stafford, U.S. Department of Energy. DOE/SC-ARM-TR-195.

McGibbon J and CS Bretherton. 2017. "Skill of ship-following large-eddy simulations in reproducing MAGIC observations across the northeast Pacific stratocumulus to cumulus transition region." Journal of Advances in Modeling Earth Systems, 9(2), 10.1002/2017MS000924.


Maschwitz G, U Löhnert, S Crewell, T Rose, and DD Turner. 2013. "Investigation of ground-based microwave radiometer calibration techniques at 530 Hpa." Atmospheric Measurement Techniques, 6, 10.5194/amt-6-2641-2013.
Research Highlight


Long CN and DJ Holdridge. 2012. Investigations of Possible Low-Level Temperature and Moisture Anomalies During the AMIE Field Campaign on Manus Island. U.S. Department of Energy. DOE/SC-ARM/TR-119.

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