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New and Improved ARM Broadband Radiation Data Now Available
Radiometers operate in mountainous terrain as part of the Surface Atmosphere Integrated Field Laboratory (SAIL) campaign near Crested Butte, Colorado. The campaign took place from September 2021 to June 2023. Photo is by David Chu, Los Alamos National Laboratory. The Atmospheric Radiation Measurement (ARM) user facility’s longtime recommended datastream for broadband surface irradiance measurements is…
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New Aerosol Chemical Speciation Monitor Data Product Now Available
This sample plot from ARM’s TRacking Aerosol Convection interactions ExpeRiment (TRACER) near Houston, Texas, shows a selection of aerosol mass concentrations corrected for composition-dependent collection efficiency. A new data product from the Atmospheric Radiation Measurement (ARM) user facility corrects time-of-flight aerosol chemical speciation monitor (ToF-ACSM) data for non-unity particle detection. The ToF-ACSM provides a quantitative…
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Aerosol Optical Properties Data Released for TRACER, SAIL Campaigns
Above are examples of properties available in the Aerosol Optical Properties value-added product files. Both plots illustrate one week of data from the TRacking Aerosol Convection interactions ExpeRiment (TRACER) in the Houston, Texas, area. The Aerosol Optical Properties value-added product (AOP VAP) is now available for two recent mobile deployments conducted by the Atmospheric Radiation…
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Updated: New Cloud Radar and Sonde Products Available for TRACER, SAIL Campaigns
Editor’s note (September 29, 2022): The end dates of the KAZRARSCL data for TRACER and SAIL have been updated below to reflect the availability of new data. The original announcement was published July 22, 2022. INTERPSONDE potential temperature output profiles are shown for October 7, 2021, during the TRacking Aerosol Convection interactions ExpeRiment (TRACER). The…
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Doppler Lidar Data Products Released for 3 ARM Campaigns
Time-height displays show Doppler lidar data from April 14, 2020, during the Cold-Air Outbreaks in the Marine Boundary Experiment (COMBLE). The top plot indicates wind speed (color) and wind vector direction (arrows), and the bottom plot provides vertical velocity. The Atmospheric Radiation Measurement (ARM) user facility operates Doppler lidars around the globe to provide measurements…
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New Aerosol Hygroscopicity Kappa Data Ready for Evaluation
Sample CCNSMPSKAPPA plots from the Surface Atmosphere Integrated Field Laboratory (SAIL) field campaign in Colorado show kappa values within critical diameter-supersaturation field space (top) and a time series of kappa (bottom) on March 15, 2022, at the Crested Butte Mountain Resort site. Hygroscopicity is the ability of a particle to take up moisture from the…