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ARM Enters Helium Conservation Mode at Southern Great Plains
Responding to a nationwide helium supply chain disruption, the Atmospheric Radiation Measurement (ARM) user facility has temporarily cut back on weather balloon launches. At scheduled intervals, ARM sends up balloons with radiosondes attached to collect measurements of temperature, pressure, humidity, and winds. Because of the disruption to the helium supply chain, ARM’s Southern Great Plains…
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ARM Recognizes Women’s History Month 2022
In this video, ARM recognizes Women in Science for Women’s History Month. With March being Women’s History Month, the Atmospheric Radiation Measurement (ARM) user facility wants to acknowledge the many women who have been important contributors to ARM’s history. The list below is by no means comprehensive. Rather, this page features a collection of articles…
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ARM Considers Future of Its Scanning Cloud Radars
Users are invited to share their feedback during upcoming radar listening sessions The Atmospheric Radiation Measurement (ARM) user facility deploys an extensive suite of complex instrumentation to tackle a broad range of science objectives. To allow for the flexibility to deploy new capabilities, ARM must sometimes retire capabilities that are less impactful. A recommendation from…
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From the User Executive Committee (UEC) Subgroup Chairs: February 2022
From Numbers to Data: Advancing Calibration and Uncertainty Communication Editor’s note: In 2021, the ARM User Executive Committee (UEC) created four subgroups to continue previous work and start new efforts to broaden community outreach. In a four-part series of blogs, each subgroup chair will introduce their subgroup, share their subgroup’s ideas and recommendations to ARM,…
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ARM Instruments and Data Products Update: Clouds, Radiation, and Precipitation
Editor’s note: This is an update from ARM Engineering and Process Manager Jennifer Comstock, who also oversees ARM science products. Upgrading instruments and data products is an important activity for ARM to keep measurements current and up to date. ARM has been updating cloud and radiation instruments over the last several years. The multifilter rotating…
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ARM Finishes Radiometer Upgrades; Related Data Product Updates Underway
In fiscal year 2021, the Atmospheric Radiation Measurement (ARM) user facility completed a major upgrade of shortwave spectral instruments at its ground-based sites. ARM added a seventh channel to its multifilter rotating shadowband radiometers (MFRSRs), multifilter radiometers, and normal incidence multifilter radiometers. Data from these instruments are used to derive column-integrated properties, such as aerosol…
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Experts Swarm Houston to Track Thunderstorms
Overlapping campaigns, some with data already, try to unwind the puzzle of coastal deep convection It is hard enough to understand what influences weather, climate, and air quality. Clouds add complex uncertainties. So do aerosols, the ultrafine liquid and solid particles that make clouds possible. Aerosol sources, chemistry, and life spans are not often well…
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Urban Pollution Affects the Life Cycle of Amazon Rainforest Clouds
ASR-funded work builds upon earlier research using ARM data from GoAmazon2014/15 campaign Aerosols play a crucial role in the Earth’s energy balance and water cycle by interacting with incoming solar radiation and serving as critical seeds for cloud formation. However, their indirect effects on clouds, radiation, and precipitation are some of the most uncertain factors…
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ARM Data Show Potential of Forests to Affect a Continent’s Climate
In Scandinavia and other northern lands, boreal forests produce gases that contribute to particle formation. In the atmosphere, these particles can influence cloud properties and, by extension, the climate. Analyzing data gathered in a Finnish forest, an international team of researchers found that boreal forests might be able to moderate earth system changes across a…
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Aerosol Chemical Speciation Monitor VAP Moves to Production
Production data are now available from a value-added product (VAP) that corrects aerosol chemical speciation monitor (ACSM) data for non-unity particle detection. The Atmospheric Radiation Measurement (ARM) user facility previously released this VAP—referred to as ACSM, corrected for composition-dependent collection efficiency (ACSMCDCE)—as an evaluation data product. The ACSM, installed in most ARM Aerosol Observing Systems,…