ARM

Tag: SGP

  • Two New Data Products Available from the Radar Wind Profiler

    Time-height images are shown here of the wind speed at a uniform 10-minute and 50-meter resolution from the radar wind profilers, part of the instrumentation at four observing facilities at the Southern Great Plains megasite. The facility name is shown in the top left corner in each panel. The ceilometer-recorded first cloud base height (red)…

  • New Release of Radar CFAD Data Product for ARM Radar Simulator

    Measured radar reflectivity (top) and the calculated radar CFAD (bottom) are displayed for May 16, 2009. Updated: Newly released data are now included from the Southern Great Plains, North Slope of Alaska, and Tropical Western Pacific atmospheric observatories from 2011 to 2013. Previous radar CFAD data (nsaradarcfadC1.c1) for the period between 2006 and 2010 from the…

  • Oklahoma Mesonet Soil Moisture Product Available for Evaluation

    1998 Volumetric Water Content for the station BUTL in the Oklahoma Mesonet for comparison to the Illston 2008 paper. While the relative temporal behavior is replicated, the absolute volumetric water content with the new coefficients derived by the Oklahoma Mesonet (Scott 2013) is significantly lower than before. For example, it is 35% at the 5-cm…

  • 2D ARM Best Estimate Data Sets Updated to Include QCECOR

    Surface latent (left) and sensible (right) heat fluxes (units are in W/m2) are shown here for ARMBESTNS in July 2012. The data source is QCECOR. Different sites are color-coded. Updated: Data are now available for the Southern Great Plains atmospheric observatory for the years 2013 and 2014. The ARM Best Estimate 2-dimensional Gridded Surface (ARMBE2DGRID) and…

  • MWRRET Version 2 Evaluation Data Available for Southern Great Plains

    Data from the 3-channel microwave radiometer at the Southern Great Plains site are shown here.The optimal estimation retrieval of liquid water path (LWP) and precipitable water vapor (PWV) have now been applied to the new 3-channel microwave radiometer at Southern Great Plains (SGP). Data for 2015 are now available as an evaluation product, called the…

  • New Release of Reprocessed QCECOR Data

    A new protocol for the QCECOR VAP at Lawrence Livermore National Laboratory has been developed. Quality-Controlled Eddy Correlation Flux Measurement (QCECOR) value-added product data were reprocessed for all the stations at the Southern Great Plains (SGP) site from year 2003 to the end of year 2015. The QCECOR data provide surface sensible and latent heat flux…

  • New Radiative Flux Analysis VAP Now Operational

    Radiative flux analysis data of irradiance and cloud fraction are shown here for the Southern Great Plains. The Radiative Flux Analysis VAP is an implementation of a series of algorithms that estimate clear-sky broadband surface irradiances, cloud fraction, optical depth, cloud transmissivity, and cloud radiative effects. This VAP is an updated version of the Shortwave…

  • New Scanning ARM Cloud Radar – Advanced – Velocity Azimuth Display (SACR-ADV-VAD) Product Released to Evaluation

    Horizontal wind speed and direction at cloud level is shown, from SACR-ADV-VAD, for the first seven days of August 2012 at the Southern Great Plains megasite. The Scanning ARM Cloud Radar-Advanced-Velocity Azimuth Display (SACR-ADV-VAD) value-added product (VAP) provides profiles of horizontal wind estimates at cloud level, using observations from the Hemispherical Sky Range Height Indicator…

  • All About the Pyrheliometers: 12th Annual IPC Conference

    Editor’s Note: Craig Webb, calibration technician at the Southern Great Plains site, sent this update. Data quality of the measurements from radiometers requires accurate and regular recalibration traceable to the World Radiometric Reference, the international standard of solar radiation measurement. Every 5 years the World Radiation Center/Physikalisch-Meteorologisches Observatorium Davos in Davos, Switzerland, hosts the International…

  • Areal Average Albedo VAP Evaluation Data Now Available

    Shown here are (top) screened areal daily average albedo and (bottom) quality check results on field.A new value-added product (VAP) estimating the surface albedo at Multifilter Rotating Shadowband Radiometer (MFRSR) spectral wavelengths is now available from the Southern Great Plains (SGP). The Areal Average Albedo (AREALAVEALB) VAP data set is unique in that it gives…