Atmospheric Radiation Measurement Climate Research Facility US Department of Energy

Colorado: Thunderhead Radiative Flux Analysis Campaign

15 November 2010 - 25 April 2011

Lead Scientist: Chuck Long

Observatory: AMF, SBS

The intent of the StormVex [Storm Peak Lab Cloud Property Validation Experiment] campaign was to create a correlative data set equivalent to between 200 and 300 aircraft flights in liquid and mixed phase clouds. This was achieved by placing the second ARM Mobile Facility (AMF2) in close proximity to an elevated platform that was heavily instrumented with aerosol, cloud and precipitation sensors. Storm Peak Lab (located east of Steamboat Springs, Colorado) is located at 3210m above sea level and was augmented with additional instruments that are typically used for airborne cloud research. The AMF2 operated at a location approximately 2.4 km west and lower in elevation (at 500m). However, the AMF2 main ground and sky radiometer set were placed at this valley floor location while the cloud remote sensors were deployed near the top of the gondola at the higher elevation site, a location designated as Thunderhead for the campaign. Having radiative closure at the Thunderhead and Storm Peak Lab sites was crucial for the optimal success of the StormVex campaign, thus we deployed a small radiometer system designed for small-footprint and remote deployments at both Thunderhead and Storm Peak Lab. These Basic Radiative Flux Analysis Systems (BRFAS) collected the measurements needed as inputs into the Radiative Flux Analysis package. Thus the BRFAS deployments provided not only radiation measurements needed for radiative closure at the Thunderhead and Storm Peak sites, but additional retrieved radiation and cloud parameters that complimented the AMF2 cloud remote sensors and in-situ sensors. In addition, the operational needs of the campaign benefited from the deployment of a Total Sky Imager with an upgraded camera that gave usable sky imagery under low light conditions. These data and data products were made available as part of the IOP data set.


Gerald Mace

Related Publications


Matsui N, CN Long, J Augustine, D Halliwell, T Uttal, D Longenecker, O Niebergall, J Wendell, and R Albee. 2012. "Evaluation of Arctic broadband surface radiation measurements." Atmospheric Measurement Techniques, 5(2), 10.5194/amt-5-429-2012.
Research Highlight

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Campaign Data Sets

IOP Participant Data Source Name Final Data
Chuck Long Radiative Flux Analysis- Thunderhead Site Order Data

SBS Data Sources

Name Full Name Browse Data
AOD Aerosol Optical Depth, derived from atmospheric extinction of solar irradiance Browse Data
AOSMET Meteorological Measurements associated with the Aerosol Observing System Browse Data
CCN Cloud Condensation Nuclei Particle Counter Browse Data
CEIL Ceilometer Browse Data
CPC Condensation Particle Counter Browse Data
CSPHOT Cimel Sunphotometer Browse Data
ECOR Eddy Correlation Flux Measurement System Browse Data
GNDRAD Ground Radiometers on Stand for Upwelling Radiation Browse Data
HSRL High Spectral Resolution Lidar Browse Data
MET Surface Meteorological Instrumentation Browse Data
MFRSR Multifilter Rotating Shadowband Radiometer Browse Data
MPL Micropulse Lidar Browse Data
MWR Microwave Radiometer Browse Data
MWR3C Microwave Radiometer, 3 Channel Browse Data
MWRRET MWR Retrievals Browse Data
NEPHELOMETER Nephelometer Browse Data
OZONE Ozone Monitor Browse Data
PSAP Particle Soot Absorption Photometer Browse Data
QCRAD Data Quality Assessment for ARM Radiation Data Browse Data
RWP Radar Wind Profiler Browse Data
SEBS Surface Energy Balance System Browse Data
SKYRAD Sky Radiometers on Stand for Downwelling Radiation Browse Data
SONDE Balloon-Borne Sounding System Browse Data
SONDEADJUST Sonde Adjust Browse Data
SWACR W-Band (95 GHz) ARM Cloud Radar, mounted to scan Browse Data
TSI Total Sky Imager Browse Data