News & Events

Data Announcements

A plot of aerosol optical depths shows six different colors representing 415, 500, 615, 673, 870, and 1625 nm.

New Aerosol Optical Depth Data Available for CAPE-k, COURAGE, and BNF

This product reports cloud-screened aerosol optical depth from the direct normal irradiance measured by ARM 7-channel multifilter rotating shadowband radiometers.

19 May 2026

Lines show pressure and temperature recorded by an ARM radiosonde. Two dots on the plot indicate different radiosonde parameters.

Radiosonde Parameters Product Released for CoURAGE, EPCAPE Campaigns

The Convective Parameters Derived from Radiosonde Data (SONDEPARAM) value-added product applies stable and consistent algorithms to ARM radiosonde data to calculate useful convective cloud parameters.

11 May 2026

A 2x2 grid of panels shows North Slope of Alaska (NSA) X-Band Scanning ARM Precipitation Radar (XSAPR) reflectivity and echo masks for widespread precipitation and isolated precipitation. Panels showing cloud streets are not pictured in this cropped image. Plots were created by Marqi Rocque, Pacific Northwest National Laboratory.

ARM Produces First Characterized and Corrected NSA XSAPR Data

The X-Band Scanning ARM Precipitation Radar (XSAPR) at ARM’s North Slope of Alaska (NSA) atmospheric observatory provides valuable dual-polarization measurements of arctic precipitation.

14 April 2026

Six time-height plots of Southern Great Plains (SGP) Ka-Band ARM Zenith Radar (KAZR) general sensitivity (GE) and moderate sensitivity (MD) reflectivity, censor mask, and classification mask highlight the insects in the boundary layer (or biota, as indicated in the classification mask plots) on September 5, 2025. Plots were created by Marqi Rocque, Pacific Northwest National Laboratory.

Characterized, Calibrated Fixed-Site KAZR Data Available for 2025

These newly released data from the Ka-Band ARM Zenith Radar (KAZR) have undergone calibration, correction, and quality control processes beyond ARM’s standard quality checks and corrections.

10 April 2026

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