ARM

Tag: ENA

  • Radiosonde Parameters Calculation VAP Available

    This skew-T plot shows the pressure and temperature recorded by an ARM radiosonde launched during the TRacking Aerosol Convection interactions ExpeRiment (TRACER) on June 1, 2022, in La Porte, Texas. Red, blue, and green dots indicate different radiosonde parameters. A new value-added product (VAP) for calculating radiosonde parameters within convective cloud environments is now available…

  • 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…

  • Cloud Type Classification Product Released for Eastern North Atlantic

    Time-height displays show reflectivity (top) and cloud types (bottom) on August 15, 2016, at ARM’s Eastern North Atlantic atmospheric observatory. The Cloud Type Classification value-added product (CLDTYPE VAP) is now available for the Atmospheric Radiation Measurement (ARM) user facility’s Eastern North Atlantic (ENA) atmospheric observatory. CLDTYPE provides an automated cloud type classification based on macrophysical…

  • New Microwave Radiometer Retrieval Data Available for Eastern North Atlantic

    This Microwave Radiometer Retrievals version 2 (MWRRETv2) quicklook image is from January 24, 2022, at the Eastern North Atlantic atmospheric observatory. From top to bottom, panels show observed brightness temperatures at 23.8 (blue), 30 (red), and 89 GHz (green); physically (red and blue) and statistically (green) retrieved precipitable water vapor; physically (red and blue) and…

  • Access New Ice-Nucleating Particle Data From Eastern North Atlantic Campaign

    The Portable Ice Nucleation Experiment (PINE) chamber operated from October 2020 to March 2021 as part of a field campaign at ARM’s Eastern North Atlantic (ENA) atmospheric observatory. Photo is by Larissa Lacher, Karlsruhe Institute of Technology. Only a subset of atmospheric particles, known as ice-nucleating particles (INPs), can initiate ice formation in the atmosphere.…

  • Full ACE-ENA Cloud Droplet Size Distribution Data Set Available

    This sample plot shows the cloud droplet size distribution in time for one research flight on July 18, 2017, as measured by the holographic detector of clouds (HOLODEC) during the Aerosol and Cloud Experiments in the Eastern North Atlantic (ACE-ENA) campaign. A fully processed data product providing cloud droplet size distribution by aircraft measurements is…

  • Companion Data Sets Key In on Eastern North Atlantic Doppler Lidar

    This Doppler lidar operates at ARM’s Eastern North Atlantic atmospheric observatory. Doppler lidars record raw backscatter and mean Doppler velocity. Photo is by Bruno Cunha, ARM. Two new Doppler lidar principal investigator data sets are available from the Atmospheric Radiation Measurement (ARM) user facility’s Eastern North Atlantic (ENA) atmospheric observatory. Doppler lidars, which record backscatter…

  • New Cloud Microphysics VAP Evaluation Data Available for 3 ARM Sites

    Sample plots are from the Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE) near Andenes, Norway, and show the primary fields from MICROBASEKAPLUS (liquid water content, liquid effective radius, ice water content, ice effective radius) on May 25, 2020. Cloud microphysical properties affect cloud radiative heating, precipitation formation, and aerosol-cloud interactions, among other important…

  • Updated ARM Best Estimate Data Available for Eastern North Atlantic

    Figure 1 shows ARMBEATM relative humidity (top) and surface precipitation (bottom) from ARM’s Eastern North Atlantic (ENA) atmospheric observatory from January through April 2020. 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 ARMBE data…

  • New Precipitation Value-Added Product Released for Video Disdrometers

    Histograms of quantities associated with convective (red) and stratiform (blue) drop size distributions (DSDs) in terms of normalized DSD intercept parameter Nw (a), liquid water content LWC versus rainfall rate R (b), and median drop size D0 versus S-band Reflectivity Factor Z (c). Density is shown on the color scale. Information is adapted from Wang et al.…