twr: Facility-specific multi-level Meteorological Instrumentation

Three tall towers are installed at Atmospheric Radiation Measurement Climate Research Facility sites: a 60-m triangular tower at the Southern Great Plains (SGP) Central Facility (CF), a 21 m walkup scaffolding tower at the SGP Okmulgee forest site (E21), and a 40-m triangular tower at the North Slope of Alaska (NSA) at Barrow.

The towers are used for meteorological, radiological, and other measurements.

Instrument systems installed on the towers are listed in section 7, Instrument Details, although only the Temperature/Relative Humidity/Vapor Pressure (T/RH/VP) measurements made on the SGP CF tower are described in detail. Information on measurements made by the other instrument systems on the towers can be found at individual instrument systems web pages.



  • Fixed
  • AMF1
  • AMF2
  • AMF3

Related Publications


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Van Weverberg K, CJ Morcrette, H Ma, SA Klein, and JC Petch. 2015. "Using regime analysis to identify the contribution of clouds to surface temperature errors in weather and climate models." Quarterly Journal of the Royal Meteorological Society, 141(693), 10.1002/qj.2603.


Zhang Y, CN Long, WB Rossow, and EG Dutton. 2010. "Exploiting diurnal variations to evaluate the ISCCP-FD flux calculations and radiative-flux-analysis-processed surface observations from BSRN, ARM, and SURFRAD." Journal of Geophysical Research – Atmospheres, 115(D15), D00K11, 10.1029/2009jd012743.

Schuh AE, AS Denning, KD Corbin, IT Baker, M Uliaz, N Parazpp, AE Andrews, and DJ Worthy. 2010. "A regional high-resolution carbon flux inversion of North America for 2004." Biogeosciences, 7(5), 10.5194/bg-7-1625-2010.


Voyles JW. 2008. ACRF Instrumentation Status: New, Current, and Future - December 2007 – January 2008. DOe ARM Climate Research Facility. DOE/SC-ARM/P-08-004.1.


Voyles JW. 2007. ACRF Instrumentation Status: New, Current, and Future September – October 2007. DOe ARM Climate Research Facility. DOE/SC-ARM/P-07-002.8.

Voyles JW. 2007. ACRF Instrumentation Status: New, Current, and Future - November/December 2007. DOe ARM Climate Research Facility. DOE/SC-ARM/P-07-002.10.

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