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Doppler Lidar Data Products Released for 2 ARM Campaigns
The Atmospheric Radiation Measurement (ARM) User Facility operates Doppler lidars (DLs) at its fixed and mobile sites to provide height- and time-resolved measurements of radial velocity, attenuated aerosol backscatter, and signal-to-noise ratio. Radial velocity measurements from ARM DLs are used to derive profiles of horizontal winds from plan position indicator (PPI) scans and vertical velocity statistics…
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Cloud Type Classification Product Available for EPCAPE and CAPE-k
The Cloud Type Classification value-added product (CLDTYPE VAP) is now available for the 2023–2024 Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) in La Jolla, California. In addition, CLDTYPE processing has begun for the 2024–2025 Cloud And Precipitation Experiment at kennaook (CAPE-k) in northwestern Tasmania. CLDTYPE provides an automated cloud type classification based on macrophysical quantities derived…
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ARM User Executive Committee Welcomes New Members
Your votes have been counted, and seven new members have been chosen to represent you on the Atmospheric Radiation Measurement (ARM) User Facility’s User Executive Committee (UEC). During the election period from October 24 to November 8, 2024, ARM received 359 ballots, which tied 2022’s record turnout. Twenty-two candidates appeared on the ballot. Thank you…
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New Aerosol Optical Depth Data Available for 4 ARM Sites
The Aerosol Optical Depth (AOD) value-added product derived from 7-channel multifilter rotating shadowband radiometer (MFRSR) measurements is now available for the Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) in La Jolla, California; the Surface Atmosphere Integrated Field Laboratory (SAIL) campaign near Crested Butte, Colorado; and the North Slope of Alaska (NSA) and Eastern North Atlantic (ENA) atmospheric observatories.…
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Compare Modeled and Observed Clouds at COMBLE With ARM Radar Simulator Product
To facilitate the direct comparison of earth system model outputs with its ground-based radar measurements, the Atmospheric Radiation Measurement (ARM) User Facility produces joint histograms of radar reflectivity and height with its cloud radar simulator. The simulator converts model-calculated cloud properties to what a cloud radar can observe. Scientists can compare the observed joint histograms,…
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DOE Program Provides Opportunities for U.S. Graduate Students
Applications open for 2025 Solicitation 1 cycle The U.S. Department of Energy (DOE) Office of Science Graduate Student Research (SCGSR) program is now accepting applications for the 2025 Solicitation 1 cycle. Applications are due at 5 p.m. Eastern time Wednesday, May 7, 2025. Since 2014, the SCGSR program has provided support to outstanding U.S. graduate students…
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ARM Fiscal Year 2025 Radar Plan Outlines Operational, Data Priorities
The Atmospheric Radiation Measurement (ARM) User Facility evaluates its activities each fiscal year to make sure they provide the most benefit and impact to the scientific community within budget and staffing constraints. ARM’s newest radar plan outlines how engineering and data staff are prioritizing their time and effort in fiscal year 2025 (FY2025) to help…
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Cloud Condensation Nuclei Vertical Profile Data Product Extended to ENA
The Retrieved Number concentration of Cloud Condensation Nuclei value-added product (RNCCN VAP) is now available for evaluation for the Eastern North Atlantic (ENA) atmospheric observatory. This VAP provides the vertical distribution of cloud condensation nuclei (CCN) number concentrations at Atmospheric Radiation Measurement (ARM) User Facility sites for better representation of aerosol indirect effects in climate…
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SAIL Campaign, ARM Get Nods on BAMS Cover
NOAA partner study also featured in issue In its December 2024 print issue, the Bulletin of the American Meteorological Society (BAMS) spotlighted the recent Surface Atmosphere Integrated Field Laboratory (SAIL) campaign conducted in Colorado by the Atmospheric Radiation Measurement (ARM) User Facility. The cover photo, taken by scientist Gijs de Boer in March 2022, features…
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Updated: Propose for ARM FY2026 Tethered Balloon System Missions
Editor’s note (February 11, 2025): The calls below are both CLOSED. Scientists can propose for new missions or request to analyze aerosol samples collected on flights The Atmospheric Radiation Measurement (ARM) User Facility has two proposal calls open simultaneously for its tethered balloon systems (TBS). For fiscal year 2026 (FY2026), ARM is now accepting preliminary…