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Southern Great Plains Site in Path of Tornado
On April 30, at about 10:30 p.m, a tornado touched down in Medford, Oklahoma, northwest of the Central Facility at ARM’s Southern Great Plains site. As the storm track moved southeast, ARM’s new network of scanning precipitation radars captured the storm signatures in extreme detail. Unfortunately, SGP site staff experienced even more detail, as the…
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AMIE Comes to an End on Manus and Gan Islands
On March 31, the ARM Madden-Julian Oscillation (MJO) Investigation Experiment, or AMIE, came to an end, signaling the return of the second ARM Mobile Facility (AMF2) to the United States and a return to routine operations at the ARM site on Manus Island in Papua New Guinea. Researchers have already begun analyzing the AMIE data…
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SGP Site Staff Share Successes, Challenges in the Name of Science
Large-scale observation network in Korea opens door to new collaborations Daniel Hartsock and Dr. Kyungjeen Park look on as Pat Dowell describes the operation of a disdrometer at the SGP site. A sensor under the instrument’s ‘hood’ measures rain rate and drop size distribution.Dr. Kyungjeen Park, Korea Meteorological Administration, faces a tremendous responsibility: develop a…
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Expanding Horizons for Climate Research
In 2012, the Atmospheric Radiation Measurement (ARM) Climate Research Facility begins outfitting two new remote climate observation sites at opposite ends of the climate spectrum—one in the harsh arctic environs of Oliktok Point, Alaska, and the other in the mild marine climate of the Azores, in the North Atlantic Ocean. Scientists will use measurements from…
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The World’s Largest Radar Laboratory
In the past year, the Department of Energy’s Atmospheric Radiation Measurement (ARM) Climate Research Facility deployed 18 new scanning radars at its research sites in Oklahoma, Alaska, and the tropical western Pacific. Today at the American Geophysical Union meeting in San Francisco, Gerald “Jay” Mace, a professor of atmospheric science at the University of Utah,…
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User Facility Highlights at AGU 2011 Fall Meeting
At this year’s American Geophysical Union Fall Meeting, ARM’s scientific users are presenting dozens of oral and poster sessions describing their research using data from the user facility. DOE’s Climate and Environmental Sciences Division will host a Town Hall Meeting Tuesday, December 6, seeking community input for the Green Ocean Amazon 2014 campaign.
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New Study Reveals and Quantifies Magnitude of Long-term Aerosol Effects on Clouds and Precipitation
A study published in Nature Geoscience this week reveals a trend that atmospheric scientists have been mulling for decades: the effects of aerosols on clouds and rainfall. The findings, based on a 10-year data set of ground-based measurements from the ARM Southern Great Plains site in Oklahoma, corroborate an analysis of NASA global satellite products.…
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Aloha! Mobile Facility to Sail the Pacific; Southern Great Plains Hosts Aerosol and Carbon Campaigns
The Department of Energy recently announced the selection of new field campaigns that will take place from 2012 through 2013. They include an investigation of marine cloud processes between California and Hawaii using the ARM Mobile Facility onboard the Horizon Spirit cargo ship and aerosol and carbon studies at ARM’s Southern Great Plains site in…
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AMIE, What You Wanna Do?
Starting October 1, the ARM Mobile Facility began obtaining measurements from the sky above Gan Island, part of the Addu Atoll in the Maldives. Combined with continuous measurements from ARM’s permanent site on Manus Island in Papua New Guinea, data collected during AMIE will help scientists analyze the atmospheric phenomena that drive the Madden Julian…
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Pass the lotion; new study shows drying trend over Great Plains
Analysis of infrared energy levels useful for similar evaluations at local scale Illustration of seasonal infrared energy trends observed at the ARM Southern Great Plains site between 1996 and 2010. Click on image to enlarge. In a study published this month in the Journal of Climate, researchers found less infrared energy reaching Earth’s surface above…