ARM

Tag: AMF2

  • New Cloud Radar Product Available From EPCAPE and CAPE-k Campaigns

    The three images illustrate the KAZRARSCL EPCAPE product for September 10, 2023. From top to bottom are time-versus-height displays of cloud boundaries, hydrometeor best-estimate reflectivity (after clutter removal), and mean Doppler velocity (the negative sign indicates motion toward radar). Images are from Karen Johnson, Brookhaven National Laboratory. The Atmospheric Radiation Measurement (ARM) User Facility has…

  • Areal-Averaged Surface Albedo Product Now Baseline

    This ArealAveAlb quicklook image from the EPCAPE campaign in La Jolla, California, provides the estimated surface albedo at the five multifilter rotating shadowband radiometer frequencies (top). Because of albedo’s sensitivity to cloud cover and precipitation, plots of input data—cloud type, cloud optical depth, and precipitation—are also included underneath the albedo plot. Image is provided by…

  • New Lidar Evaluation Data Product Provides Aerosol Features

    The plot shows the aerosol features identified from the high-spectral-resolution lidar (HSRL) at the Southern Great Plains (SGP) atmospheric observatory on November 9, 2020. Panel a shows the particulate backscatter coefficient, and panel b is the associated signal-to-noise ratio (SNR). Panel c is the reflectivity factor from the Ka-Band ARM Zenith Radar (KAZR), and panel…

  • Enhanced Eddy Correlation Flux Product Available

    Time series of surface sensible heat fluxes (top), latent heat fluxes (middle), and carbon dioxide fluxes (bottom) are shown from the ECOR and QCECOR value-added product at the Eastern North Atlantic atmospheric observatory on April 18, 2024. The gray line is original ECOR data. The black line represents corrected QCECOR data, and red x’s indicate…

  • Doppler Lidar Data Products Released for 2 ARM Campaigns

    Time-height displays show a) wind speed and b) wind direction from DLPROF-WIND on October 30, 2023, on the Ellen Browning Scripps Memorial Pier in La Jolla, California, during the EPCAPE campaign. Images are courtesy of Rob Newsom, Pacific Northwest National Laboratory. The Atmospheric Radiation Measurement (ARM) User Facility operates Doppler lidars (DLs) at its fixed…

  • Cloud Type Classification Product Available for EPCAPE and CAPE-k

    Time-height displays show reflectivity (top), cloud types (middle), and precipitation (bottom) on February 1, 2024, during the EPCAPE campaign in La Jolla, California. Image is provided by Krista Gaustad, Pacific Northwest National Laboratory. The Cloud Type Classification value-added product (CLDTYPE VAP) is now available for the 2023–2024 Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) in…

  • New Aerosol Optical Depth Data Available for 4 ARM Sites

    The colors represent aerosol optical depths measured at wavelengths of 415, 500, 615, 673, 870, and 1625 nanometers (nm) with the multifilter rotating shadowband radiometer on December 13, 2023, in La Jolla, California, during the EPCAPE campaign. Data plot is by Krista Gaustad, Pacific Northwest National Laboratory. The Aerosol Optical Depth (AOD) value-added product derived…

  • Micropulse Lidar Cloud Mask Machine Learning VAP Released for SAIL, CAPE-k

    This sample quicklook plot from the SAIL ARM Mobile Facility site shows the log of the normalized relative backscatter (log10 NRB), linear depolarization ratio (LDR), and cloud mask from the MPLCMASKML value-added product for March 16, 2022. In addition, the plot contains the machine learning model’s confidence in its prediction, as well as cloud base…

  • Lagrangian Large-Scale Forcing Data Released for MOSAiC

    The figure provides a time series of vertical velocity (top), horizontal temperature advection (middle), and horizontal moisture advection (bottom) produced by ARMLAGTRAJ for the MOSAiC expedition from November 11 to 21, 2019. Figure is from Cheng Tao, Lawrence Livermore National Laboratory. A new Lagrangian trajectory-based large-scale forcing data product from the Atmospheric Radiation Measurement (ARM)…

  • MOSAiC Doppler Lidar Motion Correction VAPs Now in Production

    The location of ARM’s Doppler lidar on the R/V Polarstern during the MOSAiC expedition is indicated in this ARM file photo. Two value-added products (VAPs) specifically designed for the 2019–2020 Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition recently moved from evaluation to production. The Doppler Lidar Motion Correction (DLMC) VAP applies…