ARM

Tag: SGP

  • 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.…

  • New Micropulse Lidar Cloud Mask Machine Learning VAP Released

    This sample MPLCMASKML plot from the Southern Great Plains atmospheric observatory shows the log of the normalized relative backscatter (log10 NRB), linear depolarization ratio (LDR), and cloud masks from the MPLCMASKML and MPLCMASK value-added products for December 24, 2017. The strength of the machine learning approach is apparent on this day when moderate aerosol loading…

  • Aerosol Optical Depth Product Generates New Data

    The colors represent aerosol optical depths measured at five different wavelengths with the multifilter rotating shadowband radiometer on June 19, 2019, at Oliktok Point, Alaska. New data are now available from the Aerosol Optical Depth value-added product derived from multifilter rotating shadowband radiometer measurements (AOD-MFRSR VAP). AOD is the measure of the total aerosol burden…

  • New Data Available From Updated Raman Lidar Value-Added Product

    This figure provides sample plots from ARM’s Southern Great Plains Central Facility Raman lidar on May 25, 2020. The top plot shows a time-height cross-section of the merged photon counting rates for the narrow-field-of-view elastic (355 nm) channel. The middle plot shows cloud base height estimates, and the bottom plot shows the so-called “merge flag.”…

  • Cloud Droplet Number Concentration Product Updated

    This sample plot from the Southern Great Plains Central Facility shows the droplet number concentration for October 30, 2019. New data are available from the Droplet Number Concentration value-added product (NDROP VAP), which has been updated to use additional inputs. This will allow NDROP to be available quicker with better retrievals and to be applied…

  • Radiative Flux Analysis Data Reprocessed for SGP Broadband Radiometer Station

    This plot shows reprocessed irradiance and albedo—surface reflectivity—from the Radiative Flux Analysis (RADFLUXANAL) value-added product for the broadband radiometer station at ARM’s Southern Great Plains atmospheric observatory from April 22 to 23, 2019. All historical Radiative Flux Analysis value-added product (RADFLUXANAL VAP) data for the broadband radiometer station (BRS) at the Southern Great Plains atmospheric…

  • REVISED: Additional Ka-Band ARM Zenith Radar Product Releases Now Available

    Editor’s note (September 1, 2021): Ka-Band ARM Zenith Radar Active Remote Sensing of CLouds (KAZRARSCL) data from January through June 2021 are now available for the Southern Great Plains and North Slope of Alaska atmospheric observatories. The data announcement below was originally published June 28, 2021. These plots illustrate the KAZRARSCL product for a sample…

  • Updated Surface Spectral Albedo Data Released

    This example quicklook from the SURFSPECALB value-added product shows the estimated spectral albedo for the 10- and 25-meter towers at ARM’s Southern Great Plains atmospheric observatory on June 2, 2016. On that date, the surface type for both towers was all vegetation. Updated data from the Surface Spectral Albedo value-added product (SURFSPECALB VAP) are available…

  • Updated Tower Water-Vapor Mixing Ratio Product Now Available

    An updated version of the Tower Water-Vapor Mixing Ratio value-added product (TWRMR VAP) is now available for use. This VAP calculates water vapor mixing ratios at the 25- and 60-meter levels of the meteorological tower at the Atmospheric Radiation Measurement (ARM) user facility’s Southern Great Plains (SGP) Central Facility. TWRMR also provides best-estimate temperature, relative…

  • 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…