News & Events

The Atmospheric Radiation Measurement (ARM) User Facility produces news and features, data announcements, event announcements, and highlights about its activities to keep users informed.

This ARM Mobile Facility—a series of containers outfitted with sophisticated atmospheric and meteorological sampling equipment—will operate from December 2024 to November 2025 in Baltimore, Maryland as part of the Coast-Urban-Rural Atmospheric Gradient Experiment (CoURAGE). The CoURAGE main site will be located here, on this former high school athletic field at Morgan State University’s Clifton Park location.

Register for Second CoURAGE Science Team Meeting

4 April 2025

Registration is now open for the second Coast-Urban-Rural Atmospheric Gradient Experiment (CoURAGE) science team meeting. The meeting will be held June 18, 2025, in Baltimore, Maryland.

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News

A README file shows an overview of intensive operational period data, the metadata creator, contact information, the investigator, data citation, data format, and file naming convention. To the left of the open README file is a file directory.

ARM Releases New Browser for Intensive Operational Period Data

The aim of the new browser is to improve the experience of users wanting to find and download data from ARM intensive operational periods.

17 April 2025

Submit Nominations for 2025 ARM Service Awards

Tell ARM about staff members who have contributed to the facility or the user community in exceptional ways. Nominations are due April 18.

4 April 2025

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Features

Screenshot of the top of the SONDE instrument page, featuring a launch photo, a mentor video, and buttons to access the instrument handbook and browse and cite data

Welcome to the New-Look ARM.gov!

ARM.gov has gotten a refresh after more than eight years with its previous look. Peruse the site's new features!

27 February 2025

Busy at Bankhead

More instruments are going up at ARM’s newest long-term atmospheric observatory, and science activity is increasing.

27 February 2025

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Data Announcements

This sample plot shows droplet number concentration from the EPCAPE ARM Mobile Facility site in La Jolla, California. The plot shows calculated droplet number concentration for two different periods. The droplet number concentration is generally seen between 0.0 and 0.4 m-3. Image is provided by Chitra Sivaraman, Pacific Northwest National Laboratory.

New and Updated Cloud Droplet Number Concentration Data Available

The Droplet Number Concentration (NDROP) value-added product has been processed for the 2023–2024 Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE). In addition, the VAP has been updated to use reprocessed multifilter rotating shadowband radiometer data from the Eastern North Atlantic observatory.

8 April 2025

Large-Scale Forcing Data Released for EPCAPE Campaign

Two evaluation versions of large-scale forcing data are now available for ARM's 2023–2024 Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) in La Jolla, California.

1 April 2025

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Events & Meetings

2025 Joint ARM User Facility and ASR PI Meeting

Upload your Joint Meeting poster and presentation files by April 7.

17 March 2025

2024 AGU Presentations Featuring ARM Data

Virtual content from the 2024 American Geophysical Union (AGU) Annual Meeting will be available online until February 28, 2025.

9 January 2025

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Publications

ARM Fiscal Year 2025 Radar Plan Outlines Operational, Data Priorities

ARM’s newest radar plan outlines how engineering and data staff are prioritizing their time and effort in fiscal year 2025 to help ensure continued operational excellence of ARM’s radars.

13 February 2025