News & Events

Data Announcements

This cropped MWRRET quicklook image provides information from the Bankhead National Forest supplemental site at Double Springs in northwestern Alabama on July 18, 2025. The image shows retrieved precipitable water vapor from the physical method (blue) and statistical method (green) with sonde launch times noted (purple); and retrieved liquid water path from the physical method (blue) and statistical method (green). The full image is in the data announcement.

New Microwave Radiometer Retrieval Data Released

The Microwave Radiometer Retrievals (MWRRET) value-added product is available for the first time for several ARM sites. In addition, the MWRRET data set for ARM’s North Slope of Alaska atmospheric observatory has been extended.

3 August 2026

A set of four panels, with the left panel showing a map of the San Diego, California, region with variational analysis domains indicated for the EPCAPE campaign in La Jolla. The three panels on the right show omega from different versions of the VARANAL value-added product and the difference in omega between the two versions.

New EPCAPE VARANAL Forcing Data Released to Evaluation

A new version of continuous large-scale forcing data for the 2023–2024 Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) is now available from ARM.

30 July 2026

A data plot shows two lines, which each illustrate data from a variational analysis domain. One of the domains has a radius of 75 kilometers, and the other has a radius of 150 kilometers.

New Southern Great Plains Continuous Large-Scale Forcing Data Released

This constrained variational analysis (VARANAL) value-added product includes both the large-scale forcing terms and the evaluation fields, which can be used for driving a variety of models and validating simulations.

13 July 2026

Three vertically stacked plots show mean Doppler velocity, reflectivity, and a comparison of multifilter rotating shadowband radiometer and sunphotometer product data.

ARM Releases New Cloud Optical Depth Product

ARM has developed the Three-Channel Sunphotometer Cloud Mode (SPHOTCOD) value-added product to provide information on cloud properties for process studies.

8 July 2026

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