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Data Data Discovery Data Sources Work with ARM Data Understanding Data Quality Capabilities Atmospheric Observatories Instruments VAPs Modeling Computing Resources Research Campaigns Publications Research Highlights News & Events Data Announcements Features News Field Notes Events About Management Structure Facility Documents History Future Directions Facility Usage COVID-19 Update as of February 16, 2021: Start of TRACER campaign delayed; observatories remain operational. Read the announcement. The world’s premier ground-based observations facility advancing atmospheric and climate research MOSAiC: A Sustained Echo of Data With the epic Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition at an end, researchers begin to wrangle with rich ARM measurements. A Wide View of CACTI Research Major scientific meetings recently featured new work from the Cloud, Aerosol, and Complex Terrain Interactions (CACTI) field campaign in Argentina. ACE-ENA Data in Spotlight at AGU, AMS Scientists are mining ARM’s aerial and ground-based data from the Aerosol and Cloud Experiments in the Eastern North Atlantic (ACE-ENA) campaign. Atmospheric Observatories SGP NSA ENA AAF AMF 2021 ARM/ASR Joint Meeting Deadlines Now Available Published: 18 March 2021 Events , Facility News Note key dates leading up to the next Joint ARM User Facility/Atmospheric System Research (ASR) Principal Investigators Meeting, which will be held virtually from June 21 to 24. Read more Deadlines Coming for AGU and AMS Annual Meetings Published: 18 March 2021 Events The American Geophysical Union (AGU) and the American Meteorological Society (AMS) recently announced proposal submission deadlines for the 2021 AGU Fall Meeting and 2022 AMS Annual Meeting. Read more Shaocheng Xie: Translating ARM Data for Science Published: 16 February 2021 Feature Stories and Releases Learn about Xie, a cloud and earth system modeler whose many roles include coordinating the science translators who help make ARM measurements more accessible. Read more BAMS Paper Highlights Initial ARM Southern Ocean Campaign Results Published: 16 February 2021 Facility News The Measurements of Aerosols, Radiation, and Clouds over the Southern Ocean (MARCUS) field campaign and the Macquarie Island Cloud and Radiation Experiment (MICRE) are documented in a new overview paper. Read more From the New User Executive Committee (UEC) Chair Published: 10 February 2021 Blog , Field Notes , From the UEC Read the first message from UEC Chair Allison C. Aiken to learn about the first meeting of the current UEC, plans in the virtual era, and how you can engage with committee members. Read more ARM Provides Data Access over 25 years of atmospheric data gathered during normal operations and field campaigns Instruments Explore more than 400 instruments that collect data at locales spanning diverse climate regimes Campaigns Conduct atmospheric science in strategic locations around the world Models Retrieve large-eddy simulation (LES) model simulations and analysis tools Publications Discover ARM-related research on clouds and aerosols, and their interaction with Earth’s energy balance and representation in earth system models Atmospheric Radiation Measurement User Facility CONNECT WITH ARM Create Account Organization Reviewed September 2020 POLICIES Data Policies Campaign Guidelines Linking Policies Diversity, Equity, & Inclusion Privacy & Security Notice HELP Ask Us Data Questions FAQs Account Management RESOURCES Media Outreach Acronyms Glossary WORKING WITH ARM Use ARM Facilities Acknowledge ARM Submit a Proposal Find Employment View ARM Priorities × I need help with... Name Email Subject Send Cancel × × SGP Central Facility Instrument Locations × Exploring the ARM.Gov Website × Title OK...