Category: Data Announcements

  • Access Ice-Nucleating Particle Data From MOSAiC Expedition

    The Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition featured the first data capturing the annual cycle of ice-nucleating particles in the central Arctic. In the Atmospheric Radiation Measurement (ARM) Data Center, two principal investigator data sets on ice-nucleating particles (INPs) are now available from the 2019–2020 Multidisciplinary Drifting Observatory for the…

  • Radiation Data Quality VAP Data Reprocessed for SGP Broadband Radiometer Station

    The broadband radiometer station provides continuous measurements of broadband shortwave (solar) and longwave (infrared) irradiances for downwelling components. An end-to-end reprocessing of data from the Data Quality Assessment for ARM Radiation Data value-added product (QCRAD VAP) is complete for the broadband radiometer station (BRS) at the Southern Great Plains (SGP) atmospheric observatory. All historical data…

  • Microwave Radiometer Retrieval Product Processed for SGP Central Facility

    This Microwave Radiometer Retrievals (MWRRET) quicklook image provides information from the Southern Great Plains Central Facility on August 10, 2019. The image shows, from top to bottom, observed brightness temperatures at 23.8 GHz (blue) and 31.4 GHz (red); retrieved precipitable water vapor from the physical method (blue) and statistical method (green); and retrieved liquid water…

  • Micropulse Lidar Cloud Mask VAP Data Revised for High-Latitude Sites

    Data reprocessed with a revised version of the Micropulse Lidar Cloud Mask value-added product (MPLCMASK VAP) are now available for four high-latitude sites. This reprocessing also includes periods of data previously listed as missing. The durations of missing data varied from several minutes to several hours and occurred periodically during the winter months. Affected fields…

  • Ka-Band ARM Zenith Radar Product Resumes for 2 Sites

    This set of plots illustrates the KAZRARSCL product. From top to bottom are time-versus-height plots of cloud boundaries, best-estimate hydrometeor reflectivity, and dealiased mean Doppler velocity for a sample date at Oliktok Point, Alaska. The Atmospheric Radiation Measurement (ARM) user facility has resumed production of the Ka-Band ARM Zenith Radar Active Remote Sensing of CLouds…

  • Precipitation Radar Data Product Released for CACTI Campaign

    A new CACTI data product will help users analyze information from the deployment of the second-generation C-Band Scanning ARM Precipitation Radar (CSAPR2) in Argentina. Photo is by Janek Uin, Brookhaven National Laboratory. The Corrected Moments in Antenna Coordinates Version 2 (CMAC2) value-added product (VAP) has been updated to work with the second-generation C-Band Scanning ARM…

  • ARM Evaluation Product Delivers 4-Dimensional Map of Cloudiness

    This sample plot from the COGS value-added product shows a heat map of cloud depth at 21:29:40 UTC (Coordinated Universal Time) on August 4, 2019, at ARM’s Southern Great Plains atmospheric observatory. A new value-added product (VAP) called Clouds Optically Gridded by Stereo (COGS) provides a four-dimensional (4D) map of cloudiness. This map is generated…

  • Aerosol Hygroscopicity Kappa Data Product Available for Evaluation

    Sample plots from ARM’s Southern Great Plains atmospheric observatory show kappa values within critical diameter-supersaturation field space, top, and a time series of kappa, bottom. A new value-added product (VAP) from the Atmospheric Radiation Measurement (ARM) user facility calculates the hygroscopic properties of measured aerosol particles. Hygroscopicity is the ability of a particle to take…

  • Updated ARM Best Estimate Data Available for Southern Great Plains

    The plots show ARMBEATM relative humidity, top, and surface precipitation, bottom, from May 31 to August 28, 2018, at ARM’s Southern Great Plains (SGP) atmospheric observatory. The Atmospheric Radiation Measurement (ARM) user facility provides tailored datastreams known as ARM Best Estimate (ARMBE) data products for use in the evaluation of global earth system models. Two…

  • ARM Data-Oriented Metrics and Diagnostics Package Updated

    New release will be used in E3SM diagnostics package The Atmospheric Radiation Measurement (ARM) user facility provides high-frequency and long-term data sets to help develop and improve earth system models. A data-oriented metrics and diagnostics package called ARM-DIAGS—now in its second version—is designed to further facilitate the use of ground-based ARM measurements in model evaluation. ARM-DIAGS…