An official website of the United States government
blue sky with white clouds

World’s premier ground-based observations facility advancing atmospheric research

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.

ARM Looking for Its Next Director: PNNL Position Open

14 January 2026

With Jim Mather recently announcing his plan to retire this year, ARM now seeks a new director to lead its next decadal vision. Applications are due February 8, 2026.

Read More

Keep up with the Atmospheric Observer

Updates on ARM news, events, and opportunities delivered to your inbox

News

Work With ARM: Propose a New Campaign

ARM calls are now open for uncrewed aerial system and tethered balloon system missions in fiscal year 2027. Researchers may also propose small campaigns.

6 January 2026

2025 AGU Presentations Featuring ARM Data

The 2025 American Geophysical Union (AGU) Annual Meeting will be held from December 15 to 19 in New Orleans, Louisiana, as well as online.

3 December 2025

Features

Bankhead National Forest After 1 Year: From Vision to Reality

Learn how ARM’s newest atmospheric observatory grew in capabilities, scope, and data during its first year of operations in northern Alabama.

24 November 2025

Remembering Ken Kehoe of the ARM Data Quality Office

Kehoe, the associate manager of the ARM Data Quality Office, passed away August 13, 2025, at age 48.

26 September 2025

Data Announcements

New Precipitation Best Estimate Data Released for Evaluation

The Precipitation Best Estimate (PrecipBE) product provides time-series data and statistics on precipitation events measured at ground level by ARM.

30 December 2025

Tethered Balloon System Merged Data Produced for BNF and CoURAGE Flights

This value-added product allows for examination of cloud-base and boundary-layer heights while making it easier to access and use measurements from ARM tethered balloon system missions.

30 December 2025

Events & Meetings

ARM 2026 Summer School: Big Open Data Science

ARM will host an open science-focused summer school from May 18 to 22, 2026, at the National Weather Center in Norman, Oklahoma.

3 December 2025

Sessions Announced for 2026 AMS Annual Meeting

The 2026 American Meteorological Society (AMS) Annual Meeting will be held from January 25 to 29 in Houston, Texas, and online. Tell ARM about your sessions!

13 August 2025

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

Check Out ARM’s 2024 Annual Report

ARM’s latest annual report is now available online, summarizing facility activities from fiscal year 2024.

2 January 2025
ARM Logo

Follow Us:

Keep up with the Atmospheric Observer

Updates on ARM news, events, and opportunities delivered to your inbox

Subscribe Now

ARM User Profile

ARM welcomes users from all institutions and nations. A free ARM user account is needed to access ARM data.

Atmospheric Radiation Measurement (ARM) | Reviewed March 2025