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Cloud Type Classification Product Released for Eastern North Atlantic
Time-height displays show reflectivity (top) and cloud types (bottom) on August 15, 2016, at ARM’s Eastern North Atlantic atmospheric observatory. The Cloud Type Classification value-added product (CLDTYPE VAP) is now available for the Atmospheric Radiation Measurement (ARM) user facility’s Eastern North Atlantic (ENA) atmospheric observatory. CLDTYPE provides an automated cloud type classification based on macrophysical…
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New Precipitation Radar Data Products Released for 2 ARM Observatories
Plots from the North Slope of Alaska data set show, clockwise from top left, hydrometeor classification (gate ID), reflectivity, cross-correlation coefficient, and velocity texture (mean Doppler velocity) generated from version 2 of the CMAC value-added product for November 23, 2019. The top left plot shows IDs of ground clutter, snow, and multitrip. Gate ID—the classification…
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Cloud Condensation Nuclei Vertical Profile Data Product Updated
This sample plot from ARM’s Southern Great Plains atmospheric observatory shows the retrieved number concentration of cloud condensation nuclei at 0.4% supersaturation for September 22, 2016. A new version of the Retrieved Number concentration of Cloud Condensation Nuclei value-added product (RNCCN VAP) is now available for evaluation. This VAP provides the vertical distribution of cloud…
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New Precipitation Product Released for TRACER Campaign
This laser disdrometer operated in Guy, Texas, during the TRacking Aerosol Convection interactions ExpeRiment (TRACER). Laser disdrometers measure drop size spectra and fall velocity of hydrometeors. A new precipitation value-added product (VAP) is now available for the 2021–2022 TRacking Aerosol Convection interactions ExpeRiment (TRACER) near Houston, Texas. The Laser Disdrometer Quantities (LDQUANTS) VAP provides quality-controlled…
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New Microwave Radiometer Retrieval Data Available for Eastern North Atlantic
This Microwave Radiometer Retrievals version 2 (MWRRETv2) quicklook image is from January 24, 2022, at the Eastern North Atlantic atmospheric observatory. From top to bottom, panels show observed brightness temperatures at 23.8 (blue), 30 (red), and 89 GHz (green); physically (red and blue) and statistically (green) retrieved precipitable water vapor; physically (red and blue) and…
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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 MOSAiC Value-Added Product Released to Evaluation
ARM deployed a Doppler lidar on the research icebreaker R/V Polarstern for the Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition. The Polarstern left Tromsø, Norway, in September 2019 for a 13-month expedition that went through the central Arctic. A new value-added product (VAP) developed specifically for the Multidisciplinary Drifting Observatory for…
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Cloud Type Classification Product Released for COMBLE Campaign
Time-height displays show reflectivity (top) and cloud types (bottom) on April 14, 2020, near Andenes, Norway, during the Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE). The Cloud Type Classification value-added product (CLDTYPE VAP) is now available for the 2019–2020 Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE) deployment near Andenes, Norway. CLDTYPE…
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ARM Best Estimate Data Available From Oliktok Point, Alaska
ARMBEATM relative humidity (top) and surface precipitation (bottom) are shown from the first 120 days of 2020 at Oliktok Point, Alaska. 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 data sets are now available…