ARM

Tag: MMCR

  • KAZR-ARSCL and KAZRCOR Products Now Available for 2011-2014 Data

    Sample images are shown here from the KAZR-ARSCL data product for the Southern Great Plains megasite on June 4, 2013. Time-versus-height images include a) hydrometeor best-estimate reflectivity, b) cloud-layer boundaries, c) instruments contributing to hydrometeor detection, and d) hydrometeor-versus-clutter mask. Updated 3/1/2017: Data has been updated from evaluation data to baseline production data. The Active…

  • New MICROARSCL Evaluation Data Released for Barrow, Alaska

    Four of the roughly 30 variables provided by MICROARSCL are shown here for February 13, 2012, in Barrow, Alaska. A new evaluation release of 18 months of data from Barrow, Alaska, provides the first KAZR-based Micro-Active Remote Sensing of Clouds (MICROARSCL) data from this North Slope of Alaska (NSA) site. The addition of the KAZR…

  • New Radar Data Lead to New Value-Added Product

    This sample KAZR-ARSCL plot shows data from the SGP on April 26, 2011. The top image shows the ‘reflectivity_best_estimate’ field, and the lower image shows cloud base and cloud top heights for all cloud layers detected on this day.The Ka-band ARM zenith radars (KAZRs) have replaced the long-serving millimeter-wavelength cloud radars (MMCRs). As a result,…

  • Upgrades to Cloud Radar Lead to New Data Product: MicroARSCL

    By providing detailed information about cloud properties, the millimeter wave cloud radar (MMCR) is a key capability at ARM sites. Between 2004 and 2006, ARM completed upgrades to the digital portion of the MMCR receivers. These upgrades significantly improved the radar’s temporal resolution, extended the interval for detecting velocity, and allowed continuous recording of Doppler…

  • Second Version of Long-Term Climate Modeling Best Estimate Data Released

    Version 2 of the Climate Modeling Best Estimate includes the data source information for cloud fraction, as depicted in this data plot. With major improvements in the cloud fraction, cloud liquid water path (LWP), precipitable water vapor (PWV), and surface radiative fluxes, a new version of the “Climate Modeling Best Estimate” (CMBE) is now available…

  • New ARM PI Product—Merged MMCR and WSR-88D Data Sets

    A new ARM Principal Investigator (PI) product—Merged MMCR and WSR-88D Data sets (PI:X. Dong)—is now available at the ARM Climate Research Facility Data Archive. This data set merges Millimeter Wavelength Cloud Radar (MMCR) reflectivity data with National Weather Service precipitation radar (WSR-88D) observations to provide improved radar reflectivity profiles in situations where the MMCR signal…