ARM

Category: Data Announcements

  • New Tethered Balloon System Data Available for Evaluation

    The new Tethered Balloon System Merged (TBSMERGED) data product is available from flights in Oklahoma (above), Texas, Colorado, and Alaska. The Atmospheric Radiation Measurement (ARM) user facility has a new data product to make it easier for users to work with measurements from its tethered balloon system (TBS) missions. The TBS normally operates below the…

  • Large-Scale Forcing Data Released for CACTI Campaign

    The map shows the variational analysis domain (enclosed by the red circle) for the Cloud, Aerosol, and Complex Terrain Interactions (CACTI) field campaign. The domain is centered at 64.1oW, 32oS. The first ARM Mobile Facility (AMF1) at Córdoba, Argentina, is located near the southwestern corner of the variational analysis domain. Continuous large-scale forcing data are…

  • Updated Stereo Camera Cloudiness Map Product Released for Evaluation

    Clouds Optically Gridded by Stereo (COGS) data from ARM’s Southern Great Plains atmospheric observatory are presented for May 4, 2018. The top plot shows the number of cloudy grids as a function of time and height above the ground. Cloud base heights estimated as the 1% of the cloudy grid heights are marked with black…

  • Raman Lidar Vertical Profiles Product Expands to Oliktok Point, Alaska

    Plots from top to bottom show particulate backscatter coefficient profile; particulate extinction coefficient profile; particulate depolarization ratio profile; and detected features at the ARM site in Oliktok Point, Alaska, on July 18, 2018. In the bottom plot, HOI refers to horizontally oriented ice crystals. Data at Oliktok Point, Alaska, are now available from the Raman…

  • New Aerosol Chemical Speciation Monitor Data Product Now Available

    This sample plot from ARM’s TRacking Aerosol Convection interactions ExpeRiment (TRACER) near Houston, Texas, shows a selection of aerosol mass concentrations corrected for composition-dependent collection efficiency. A new data product from the Atmospheric Radiation Measurement (ARM) user facility corrects time-of-flight aerosol chemical speciation monitor (ToF-ACSM) data for non-unity particle detection. The ToF-ACSM provides a quantitative…

  • Micropulse Lidar Cloud Mask Machine Learning VAP Now In Production

    This sample quicklook plot from the Southern Great Plains atmospheric observatory shows the log of the normalized relative backscatter (log10 NRB), linear depolarization ratio (LDR), and cloud mask from the MPLCMASKML value-added product for January 1, 2015. In addition, the plot contains the machine learning model’s confidence in its prediction, and cloud base and cloud…

  • ARM Rolls Out New Products for Determining Boundary-Layer Height

    Plots from top to bottom show micropulse lidar (MPL) backscatter; ceilometer (CEIL) backscatter; Doppler lidar (DL) vertical air motion variance; and estimates of planetary boundary-layer height (PBLHT) derived from MPL, CEIL, DL, and sonde measurements at ARM’s Southern Great Plains Central Facility on June 28, 2017. The structure and depth of the planetary boundary layer…

  • Updated Surface Cloud Grid Data Now Available

    Plots of primary measurements from the Surface Cloud Grid (SFCCLDGRID) value-added product are generated for each sample time (15-minute sampling interval) and linked together to create movies of the change in the measurements over the day at ARM’s Southern Great Plains atmospheric observatory. In the figure above, the yellow ball represents the sun in the…

  • New Radiative Flux Analysis Data Produced for Southern Great Plains

    This plot shows irradiance and albedo—surface reflectivity—from the Radiative Flux Analysis (RADFLUXANAL) value-added product at the Southern Great Plains Central Facility’s broadband radiometer station from June 15 to 16, 2021. The Atmospheric Radiation Measurement (ARM) user facility processes yearly data from the Radiative Flux Analysis value-added product (RADFLUXANAL VAP) to produce level 2 (c2) data.…

  • Aerosol Optical Properties Data Released for TRACER, SAIL Campaigns

    Above are examples of properties available in the Aerosol Optical Properties value-added product files. Both plots illustrate one week of data from the TRacking Aerosol Convection interactions ExpeRiment (TRACER) in the Houston, Texas, area. The Aerosol Optical Properties value-added product (AOP VAP) is now available for two recent mobile deployments conducted by the Atmospheric Radiation…