ARM

Tag: SGP

  • Cloud Microphysics VAP Extended at Southern Great Plains

    Sample plots show the primary fields from MICROBASEKAPLUS (liquid water content, liquid effective radius, ice water content, and ice effective radius) on November 21, 2021, at ARM’s Southern Great Plains atmospheric observatory. New evaluation data are available from a value-added product (VAP) that builds upon the Atmospheric Radiation Measurement (ARM) user facility’s historical Continuous Baseline…

  • 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…

  • 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…

  • 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.…

  • New Precipitation Radar Data Products Released for 2 ARM Observatories

    Plots from the North Slope of Alaska data set show, clockwise from top left, hydrometeor classification (gate ID), reflectivity, cross-correlation coefficient, and velocity texture (mean Doppler velocity) generated from version 2 of the CMAC value-added product for November 23, 2019. The top left plot shows IDs of ground clutter, snow, and multitrip. Gate ID—the classification…

  • Cloud Condensation Nuclei Vertical Profile Data Product Updated

    This sample plot from ARM’s Southern Great Plains atmospheric observatory shows the retrieved number concentration of cloud condensation nuclei at 0.4% supersaturation for September 22, 2016. A new version of the Retrieved Number concentration of Cloud Condensation Nuclei value-added product (RNCCN VAP) is now available for evaluation. This VAP provides the vertical distribution of cloud…

  • Improved Microwave Radiometer Retrieval Data Produced for 2 ARM Sites

    This Microwave Radiometer Retrievals (MWRRET) quicklook image provides information from ARM’s Southern Great Plains Central Facility on July 2, 2021. 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…