ARM

Tag: SGP

  • Scanning ARM Cloud Radar-Velocity Azimuth Display Product Released to Production

    Horizontal wind speed and direction at cloud level, from SACR-ADV-VAD, are shown for the first seven days of August 2012 at ARM’s Southern Great Plains Central Facility. The Scanning ARM Cloud Radar-Advanced-Velocity Azimuth Display (SACR-ADV-VAD) value-added product, which provides profiles of horizontal wind estimates at cloud level, has moved to production. SACR-ADV-VAD uses radial mean…

  • New Radiation Data Quality VAP Release Available for Southern Great Plains Extended Facilities

    Radiometers collect data at the ARM Southern Great Plains extended facility E35 at Tryon, Oklahoma. A new level 2 (c2/s2) release of the Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product (VAP) is now available for eight extended facilities at the Atmospheric Radiation Measurement (ARM) user facility’s Southern Great Plains atmospheric observatory. This…

  • REVISED: New Shallow Cumulus VAP Available

    These plots provide data about shallow cumulus events at ARM’s SGP Central Facility in June 2017. The top panel shows days with shallow cumulus events. The bottom panel gives more information for up to four events, including whether the event contained overlying cirrus, was not detected because no low clouds were found, missed the length…

  • Continuous Large-Scale Forcing Data for Cloud Modeling From Southern Great Plains Extended to October 2018

    The seasonal cycle of Southern Great Plains domain-averaged latent heat (LH) and sensible heat (SH) fluxes is shown by using QCECOR-only (QCECOR), BAEBBR-only (BAEBBR), and both QCECOR and BAEBBR data (merged) averaged from 2004 to 2015, and the impact to the derived large-scale vertical velocity (omega). Version 2 of the continuous forcing value-added product uses…

  • New Radiation Data Quality (QCRAD) VAP Release Now Available

    A broadband radiometer station at ARM’s Southern Great Plains Central Facility near Lamont, Oklahoma, measures broadband solar (shortwave) and infrared (longwave) radiation. Data from this station have been processed as part of a new release for the Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product. A new level 2 (c2/s2) release for the…

  • New Microwave Radiometer Retrievals VAP Data Available for Several ARM Campaigns and Sites

    Microwave radiometers, such as this one at ARM’s North Slope of Alaska atmospheric observatory, provide time-series measurements of column-integrated amounts of water vapor and liquid water. The Microwave Radiometer Retrievals (MWRRET) value-added product (VAP) has been processed for the following Atmospheric Radiation Measurement (ARM) user facility field campaigns and measurement sites: the ARM North Slope…

  • 30 New Case Dates Released for LASSO

    This skill score comparison shows cloud fraction results from the large-eddy simulation compared with total sky imager (TSI) observations. Each number represents a different ensemble member from the July 21, 2017, case. The Large-Eddy Simulation (LES) ARM Symbiotic Simulation and Observation (LASSO) team has processed and released 30 new case dates for the 2017 spring-summer…

  • New Cloud Type VAP and Visualization Available

    A new data product—the Cloud Type Classification (CLDTYPE) value-added product (VAP)—provides an automated cloud type classification based on macrophysical quantities derived from vertically pointing lidar and radar. Up to 10 layers of clouds are classified into seven cloud types based on predetermined and site-specific thresholds of cloud top height, cloud base height, and thickness. Inputs…

  • QCRAD Value-Added Data Product Updates Available

    Level 2 (c2/s2) data for the Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product (VAP) have now been processed at all Atmospheric Radiation Measurement (ARM) user facility fixed sites through summer 2017. These sites include the Southern Great Plains central and extended facilities, Barrow (known officially as Utqiaġvik) and Oliktok Point, Alaska, and…

  • LASSO Alpha 2 Supplement Includes 2015 Case Dates

    Plots from the Alpha 2 supplement show observed versus simulated cloud fraction for simulation number 13 on June 6, 2015. The plots show observed cloud fraction (top panel) retrieved from the Active Remote Sensing of CLouds (ARSCL) product using the Ka-Band ARM Zenith Radars (KAZRARSCL) product, the simulated cloud fraction (middle panel) based on large-eddy…