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Large-Scale Forcing Data Released for Macquarie Island Campaign
The map shows the variational analysis domain (enclosed by the red circle) for the Macquarie Island Cloud and Radiation Experiment (MICRE). The domain is centered at 158.9oE, 54.5oS. The ARM site on Macquarie Island is located at the center of the domain. Continuous large-scale forcing data are now available for the Macquarie Island Cloud and…
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Improved Microwave Radiometer Retrieval Data Produced for 2 ARM Sites
This Microwave Radiometer Retrievals (MWRRET) quicklook image provides information from ARM’s Southern Great Plains Central Facility on July 2, 2021. The image shows, from top to bottom, observed brightness temperatures at 23.8 GHz (blue) and 31.4 GHz (red); retrieved precipitable water vapor from the physical method (blue) and statistical method (green); and retrieved liquid water…
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Improved Broadband Radiation Data Quality Files Available From Southern Great Plains
A broadband radiometer station at ARM’s Southern Great Plains Central Facility near Lamont, Oklahoma, measures broadband solar (shortwave) and infrared (longwave) radiation. Data from this station have been processed as part of a new release for the Data Quality Assessment for ARM Radiation Data (QCRAD) product. The Atmospheric Radiation Measurement (ARM) user facility processes yearly…
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Satellite-Aligned Version of Ka-Band ARM Zenith Radar Product Now Available
The top image shows best-estimate reflectivity from the Ka-Band ARM Zenith Radar Active Remote Sensing of CLouds (KAZRARSCL) product for a sample day at the Southern Great Plains atmospheric observatory. The middle image provides the KAZRARSCL best-estimate reflectivity after statistical alignment with CloudSat. The bottom image shows the CloudSat reflectivity offset that was applied at…
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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…
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ARM Best Estimate Data Sets Updated for 2 ARM Observatories
The plots show ARMBEATM relative humidity (top) and surface precipitation (bottom) from May to October 2020 at ARM’s Southern Great Plains (SGP) atmospheric observatory. 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 earth system models. The ARM Best…
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New Data Set Available From COMBLE Campaign
Top image: Reflectance from the Aqua MODIS satellite visible channel shows cloud streets extending from the ice edge southward to Norway on March 13, 2020. The black star marks the location of the ARM Mobile Facility site near Andenes, Norway, with red, blue, green, and yellow lines indicating back trajectories at 500 meters, 1,000 meters,…
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Large-Scale Forcing Data Released for COMBLE Campaign
The map shows the variational analysis domain (enclosed by the red circle) for the Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE). The domain is centered at 14.9oE, 70.6oN. The first ARM Mobile Facility (AMF1), sited near Andenes, Norway, is located at the edge of the domain. Continuous large-scale forcing data are now available…
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LASSO-CACTI Beta Release Available
Editor’s note: William Gustafson, principal investigator for the Large-Eddy Simulation (LES) ARM Symbiotic Simulation and Observation (LASSO) activity, sent in this update. This is a rendering of the simulated radar reflectivity over the ARM Mobile Facility site during CACTI as viewed from the southwest at 19 UTC (Coordinated Universal Time) on January 29, 2019. The…
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New Aerosol Hygroscopicity Kappa Data Released for 3 ARM Sites
Sample CCNSMPSKAPPA plots from the Cloud, Aerosol, and Complex Terrain Interactions (CACTI) field campaign show kappa values within critical diameter-supersaturation field space, top, and a time series of kappa, bottom, on November 15, 2018. Hygroscopicity is the ability of a particle to take up moisture from the environment and is important for understanding the formation…