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Proposed LASSO Expansion Scenarios Get a Deeper Look at Workshop
Editor’s note: William Gustafson, principal investigator for the Large-Eddy Simulation (LES) ARM Symbiotic Simulation and Observation (LASSO) workflow, sent in this update. A workshop earlier this year helped us move closer to making a final decision on the next phase of LASSO. On May 2, 2019, an international group of 16 scientists gathered to discuss…
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MPLCMASK Evaluation Data Available for MARCUS Campaign
An updated version of the Micropulse Lidar Cloud Mask (MPLCMASK) value-added product (VAP) provides cloud boundaries and linear depolarization ratio (LDR) for the Measurements of Aerosols, Radiation, and Clouds over the Southern Ocean (MARCUS) field campaign. Lidar cloud boundary data are useful for identifying cloud base height and cloud thickness in optically thin clouds. The…
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New Cloud Type VAP and Visualization Available
A new data product—the Cloud Type Classification (CLDTYPE) value-added product (VAP)—provides an automated cloud type classification based on macrophysical quantities derived from vertically pointing lidar and radar. Up to 10 layers of clouds are classified into seven cloud types based on predetermined and site-specific thresholds of cloud top height, cloud base height, and thickness. Inputs…
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Saudades for the Azores
Francesca Gallo, an atmospheric scientist at Los Alamos National Laboratory, sent in this post. I first arrived in the Azores on a foggy, wintery January day. I remember only clouds and cows everywhere. “It’s just for six months, not a day more than that,” I thought. Almost seven years later, when I left the Azores…
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Boost Attendance at Your AGU Presentation
One of the best ways to draw attendees to your AGU sessions is to be highlighted on the ARM and Atmospheric System Research (ASR) websites. If you, or one of your team members, is presenting (talk or poster) at the upcoming AGU meeting December 10 to 14—and if that presentation is based on your ASR-funded…
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LASSO Case Study: Users Rope In ‘Cloud Problem’ for a Closer Look
Graham Feingold and other theoreticians use the new tool to test model parameterizations This is the second article in a series of case studies. To some of us, “lasso” refers to a stiff loop of rope handy for throwing. To statisticians, it is a way of doing regression analysis. For atmospheric scientists who develop and…
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UEC Profile: Combining Models With Observations, Andrew Gettelman Puzzles Out Cloud-Aerosol Interactions
An active modeler calls himself ‘an evangelist’ for ARM data This is the sixth article in a series of profiles on members of the ARM User Executive Committee (UEC). “We model clouds pretty well, and we model aerosols pretty well,” says Andrew Gettelman, a scientist with the National Center for Atmospheric Research (NCAR) in Boulder,…
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Seeking Early ACE-ENA Results
With data in from the Aerosol and Cloud Experiments in the Eastern North Atlantic (ACE-ENA) field campaign, co-principal investigator Robert Wood of the University of Washington will have an overview oral presentation on the effort at the 15th Conference on Cloud Physics, hosted by the American Meteorological Society. The presentation is scheduled for July 10…
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Gearing Up for a Stormy CACTI Deployment
Editor’s note: Anjeli Doty of the Los Alamos National Laboratory ARM team sent in this update. Towering stacks of ominous dark clouds, splitting strikes of bright lightning, and torrential rain typify weather in the rugged Sierras de Córdoba mountain range in north-central Argentina. It is a place to find the perfect storm—perfect, that is, to…
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MARCUS Means a Rolling, Rich Science Look at the Southern Ocean
DOE-funded campaign gathers the most complete set of data on aerosol and cloud properties from shipboard instruments over the stormy Southern Ocean At dockside in Hobart, Australia, the bright red-orange Aurora Australis looks blunt and wide. When not in its berth, the rugged ship pounds like a 100-meter hammerhead through the violent waves of the…