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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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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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New Cloud Microphysics VAP Evaluation Data Available for 3 ARM Sites
Sample plots are from the Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE) near Andenes, Norway, and show the primary fields from MICROBASEKAPLUS (liquid water content, liquid effective radius, ice water content, ice effective radius) on May 25, 2020. Cloud microphysical properties affect cloud radiative heating, precipitation formation, and aerosol-cloud interactions, among other important…
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ARM Best Estimate Data Now Available for CACTI, COMBLE Campaigns
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. ARMBE data sets are now available for the Cloud, Aerosol, and Complex Terrain Interactions (CACTI) field campaign and the Cold-Air Outbreaks in the Marine Boundary Layer Experiment…
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Radiation Data Quality VAP Expands to COMBLE and MICRE Campaigns
These radiometers collected data during the 2016–2018 Macquarie Island Cloud and Radiation Experiment (MICRE). Photo is courtesy of Jeff Aquilina, Australian Bureau of Meteorology. The Atmospheric Radiation Measurement (ARM) user facility’s longtime recommended datastream for broadband surface irradiance measurements is Data Quality Assessment for ARM Radiation Data (QCRAD). The QCRAD value-added product (VAP) is now…
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Radiative Flux Analysis Data Released for COMBLE Campaign
This plot shows irradiance and albedo from the Radiative Flux Analysis (RADFLUXANAL) value-added product toward the end of the Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE) in May 2020. The Radiative Flux Analysis value-added product (RADFLUXANAL VAP) is now available for the 2019–2020 Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE) deployment…
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ARM Technician Goes on Work Trip of a Lifetime
Editor’s note: ARM technician Tercio Silva of Hamelmann Communications worked on the Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE) and the Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition. Here he shares his experience working on both campaigns. Photos are by Silva except where indicated. I am ready for the…
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For Careful, Comprehensive COMBLE, It’s a Wrap
After six months of collecting data on cold-air outbreaks in northern Norway, elated scientists are ready to wrestle with the data The first ARM Mobile Facility (AMF1), the chief instrument platform during the Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE), was sited right on the Norwegian Sea. Photo is by David Oaks, ARM.…