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Black Carbon Data Product Available for Use
Sample plots show black carbon mass concentrations and size distributions from February 16, 2020, at ARM’s North Slope of Alaska (NSA) atmospheric observatory. On this day, smoke from biomass burning approached the NSA. The Atmospheric Radiation Measurement (ARM) user facility developed a data product for scientists to measure the black carbon (BC) mass loadings in…
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New Aerosol Hygroscopicity Kappa Data Available
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 ARM’s Aerosol Observing System (AOS) site on Crested Butte Mountain. The CCN particle counter and SMPS operated as part…
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ARM Best Estimate Data Released for SAIL Campaign
ARMBEATM relative humidity (top) and surface precipitation (bottom) are shown for the first 120 days of 2022 during the Surface Atmosphere Integrated Field Laboratory (SAIL) campaign. The Atmospheric Radiation Measurement (ARM) user facility provides tailored datastreams known as ARM Best Estimate (ARMBE) data products for use in the evaluation of global climate models. Two ARMBE…
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Quality-Assured SAIL X-Band Radar Data Now Available
A site camera on Crested Butte Mountain captures the Colorado State University X-band scanning radar during the Surface Atmosphere Integrated Field Laboratory (SAIL) campaign near Crested Butte, Colorado. Quality-assured data from the radar are now available. During the 2021–2023 Surface Atmosphere Integrated Field Laboratory (SAIL) campaign near Crested Butte, Colorado, the Atmospheric Radiation Measurement (ARM)…
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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…