ARM

Tag: MARCUS

  • New Data Product Determines Thermodynamic Phase of Cloud Hydrometeors

    Thermodynamic cloud phase identification is important to understand many cloud processes such as ice particle production, precipitation formation, and cloud life-cycle evolution, and it is essential to improve our understanding of cloud radiative properties and the atmospheric radiative budget. Because ice particles and liquid droplets have distinct sizes, shapes, fall velocities, and refractive indexes, clouds…

  • BAMS Paper Highlights Initial ARM Southern Ocean Campaign Results

    MARCUS, MICRE included in overview publication of recent campaigns in the region During the Measurements of Aerosols, Radiation, and Clouds over the Southern Ocean (MARCUS) field campaign, ARM instruments aboard the Aurora Australis supply vessel collected atmospheric data while traveling between Australia and Antarctica between October 2017 and April 2018. To improve the understanding and…

  • AERI Noise Filtered Data Available for MARCUS, LASIC Campaigns

    This quicklook image shows the time series of the radiance in window channels for Channel 1 at 900 cm-1 and Channel 2 at 2,600 cm-1 on July 5, 2017, during the Layered Atlantic Smoke Interactions with Clouds (LASIC) field campaign. The Atmospheric Emitted Radiance Interferometer Noise Filtered (AERINF) value-added product (VAP) is now in production…

  • Microwave Radiometer Retrievals VAP Available for New Set of ARM Campaigns

    This Microwave Radiometer Retrievals (MWRRET) quicklook image provides information from the Cloud, Aerosol, and Complex Terrain Interactions (CACTI) field campaign on April 27, 2019. The image shows (a) observed brightness temperatures at 23.8 GHz (blue) and 31.4 GHz (red); (b) retrieved precipitable water vapor from the physical method (blue) and statistical method (green); and (c)…

  • Evaluation Data Available From MARCUS Navigation and Ship Correction VAPs

    Figure a shows the MARCUS ship’s track—color-coded by day—from January 16 to 26, 2018. The minimum, the 25th percentile, the median, the 75th percentile, and the maximum beam angle (angle off the zenith) are represented by box-and-whisker plots in figure b, whereas the colors of the boxes correspond to the days on the map in…

  • MPLCMASK Evaluation Data Available for MARCUS Campaign

    Sample plots from the MARCUS deployment show the log10 (backscatter) and the LDR for a selected range and UTC time for February 18, 2018. An updated version of the Micropulse Lidar Cloud Mask (MPLCMASK) value-added product (VAP) provides cloud boundaries and linear depolarization ratio (LDR) for the Measurements of Aerosols, Radiation, and Clouds over the…

  • WACR-ARSCL Evaluation Data Available for MARCUS Field Campaign

    From top to bottom, these images from the MARCUS WACR-ARSCL VAP show best-estimate reflectivity, non-ship-corrected mean Doppler velocity, and ship-corrected mean Doppler velocity for November 28, 2017. A value-added product (VAP) that combines observations from the marine version of the 95 GHz W-Band ARM Cloud Radar (WACR) and other ARM mobile instruments now provides datastreams…

  • Aerosol Optical Properties VAP Now Available

    The first plot shows the aerosol extensive property of light absorption for nominally “red,” “green,” and “blue” light over a two-week period at Ascension Island. The second plot shows the wavelength dependence of aerosol absorption—an intensive property—which describes the nature rather than the abundance of the absorption. The Aerosol Optical Properties (AOP) value-added product (VAP)…