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Successful LASSO Tutorial Held at University of Maryland, Baltimore County
Editor’s note: William Gustafson, principal investigator for the Large-Eddy Simulation (LES) ARM Symbiotic Simulation and Observation (LASSO) activity, and Henrique Barbosa, an associate professor in the University of Maryland, Baltimore County (UMBC) Department of Physics, provided the following blog post. On May 2 and 3, 2023, the Atmospheric Radiation Measurement (ARM) user facility, in conjunction…
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COMBLE Graces BAMS Cover
The gorgeous photo of northern Norway on the cover of the May 2023 issue of the Bulletin of the American Meteorological Society (BAMS) pairs a picturesque view of the North Atlantic with an equally impressive suite of atmospheric and climate instruments. The photo shows the mobile observatory operated by the Atmospheric Radiation Measurement (ARM) user…
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Telecommunications Outages Affecting North Slope of Alaska
A severed undersea fiber optic cable is causing varying levels of internet and phone outages this week across the North Slope of Alaska. The North Slope Borough has issued an emergency declaration related to the outages. Current estimates are that it could take six to eight weeks to fix the cable about 34 miles north…
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First CAPE-K Instrument Arrives Onsite; Campaign Preparations Ramp Up
Site visit and science planning meeting take place in April The Cloud And Precipitation Experiment at Kennaook (CAPE-K) is still 10 months from starting operations, but the first instrument for the campaign is already onsite in northwestern Tasmania. The Australian Bureau of Meteorology (BOM) has loaned an AS-15 automatic radiosonde launcher to the Atmospheric Radiation…
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New Data Product Determines Thermodynamic Phase of Cloud Hydrometeors
Thermodynamic cloud phase identification is important to understand many cloud processes such as ice particle production, precipitation formation, and cloud life-cycle evolution, and it is essential to improve our understanding of cloud radiative properties and the atmospheric radiative budget. Because ice particles and liquid droplets have distinct sizes, shapes, fall velocities, and refractive indexes, clouds…
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ARM Best Estimate Data Produced for TRACER 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 data sets are now available from the TRacking Aerosol Convection interactions ExpeRiment (TRACER), which ran from October 2021 through September 2022 near Houston, Texas. The ARM…
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Radiative Flux Analysis Data Released for TRACER Campaign
The Radiative Flux Analysis value-added product (RADFLUXANAL VAP) is now available for the 2021–2022 TRacking Aerosol Convection interactions ExpeRiment (TRACER) near Houston, Texas. RADFLUXANAL calculates clear-sky irradiance in the shortwave and longwave surface fluxes from the measured broadband irradiance. This VAP also calculates fractional sky cover and cloud parameters, including effective visible cloud optical depth, cloud…
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Cloud Type Classification Product Expands to North Slope of Alaska
The Cloud Type Classification value-added product (CLDTYPE VAP) is now available for the Atmospheric Radiation Measurement (ARM) user facility’s North Slope of Alaska (NSA) atmospheric observatory. CLDTYPE provides an automated cloud type classification based on macrophysical quantities derived from vertically pointing lidar and radar at ARM sites. Up to 10 layers of clouds are classified…
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ARM Special Announcement: Updated COVID-19 (Novel Coronavirus) Guidance
As field operations ramp up for the summer, we wanted to update you on our COVID safety protocols. With the expiration of the U.S. coronavirus public health emergency declaration in May, some data used to monitor COVID-19 activity are no longer being collected or have changed. Also, we recognize that test reporting has become less…
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ARM30 and Beyond: The Evolution of ARM Data
Now in its fourth decade of collecting atmospheric data, ARM embraces adaptability to meet evolving user needs This is the 10th and final article in the yearlong “ARM30” series of stories on the evolution of ARM―its data, sites, science missions, field campaigns, and people. Over the past 30-plus years, the Atmospheric Radiation Measurement (ARM) user…