ARM

Tag: GUC

  • 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…

  • 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…

  • Large-Scale Forcing Data Released for SAIL Campaign

    Continuous large-scale forcing data are now available for the Surface Atmosphere Integrated Field Laboratory (SAIL) field campaign. The Atmospheric Radiation Measurement (ARM) user facility conducted the SAIL campaign in high-altitude complex terrain near Crested Butte, Colorado, from September 2021 to mid-June 2023. Scientists can use this value-added product (VAP), known as VARANAL, to drive single-column…

  • Tethered Balloon System Merged Data Now In Production

    During the SAIL campaign, a tethered balloon system collects data at the East River Pumphouse site south of Gothic, Colorado, on June 14, 2023. Photo is by Nathan Bilow. The Tethered Balloon System Merged value-added product (TBSMERGED VAP) and the in-cloud version of the merged product (TBSMERGEDINCLOUD) have moved from evaluation to production. Both VAPs…

  • New AERI Noise Filtered Data Produced for 3 ARM Campaigns

    This quicklook image shows the time series of the radiance in window channels for Channel 1 (900 cm-1) and Channel 2 (2600 cm-1) on August 22, 2022, during the SAIL campaign. The Atmospheric Emitted Radiance Interferometer Noise Filtered value-added product (AERINF VAP) is now in production for the following field campaigns conducted by the Atmospheric…

  • New Aerosol Chemical Speciation Monitor Data Product Now Available

    This sample plot from ARM’s TRacking Aerosol Convection interactions ExpeRiment (TRACER) near Houston, Texas, shows a selection of aerosol mass concentrations corrected for composition-dependent collection efficiency. A new data product from the Atmospheric Radiation Measurement (ARM) user facility corrects time-of-flight aerosol chemical speciation monitor (ToF-ACSM) data for non-unity particle detection. The ToF-ACSM provides a quantitative…

  • Aerosol Optical Properties Data Released for TRACER, SAIL Campaigns

    Above are examples of properties available in the Aerosol Optical Properties value-added product files. Both plots illustrate one week of data from the TRacking Aerosol Convection interactions ExpeRiment (TRACER) in the Houston, Texas, area. The Aerosol Optical Properties value-added product (AOP VAP) is now available for two recent mobile deployments conducted by the Atmospheric Radiation…