ARM

Tag: ENA

  • New and Updated Cloud Droplet Number Concentration Data Available

    This sample plot shows droplet number concentration from the EPCAPE ARM Mobile Facility site in La Jolla, California. Image is provided by Chitra Sivaraman, Pacific Northwest National Laboratory. The Droplet Number Concentration value-added product (NDROP VAP) has been processed for the 2023–2024 Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) in La Jolla, California. In addition,…

  • New ARM Best Estimate Data Available for 4 ARM Sites

    ARMBEATM relative humidity (top) and surface precipitation (bottom) are shown for April through June 2023 during the EPCAPE campaign in La Jolla, California. Images were generated by Yuying Zhang, Lawrence Livermore National Laboratory. The Atmospheric Radiation Measurement (ARM) User Facility provides tailored datastreams known as ARM Best Estimate (ARMBE) data products for use in the…

  • 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…

  • Cloud Condensation Nuclei Vertical Profile Data Product Extended to ENA

    This sample plot from ARM’s Eastern North Atlantic atmospheric observatory shows the retrieved number concentration of cloud condensation nuclei at 0.4% supersaturation for April 1, 2023. Data plot is by Gourihar Kulkarni, Pacific Northwest National Laboratory. The Retrieved Number concentration of Cloud Condensation Nuclei value-added product (RNCCN VAP) is now available for evaluation for the…

  • New Merged Product Integrates G-1 Flight Data

    Aerosol concentration data from the G-1 ultrafine condensation particle counter are shown for an approximately three-hour flight on December 8, 2018, near Córdoba, Argentina, during the CACTI campaign. Image is from Krista Gaustad, Pacific Northwest National Laboratory. From 2010 until its final science mission in 2018, the Gulfstream-159 (G-1) aircraft served as the Atmospheric Radiation…

  • New 2- and 3-Channel Microwave Radiometer Retrieval Data Produced

    This MWRRET quicklook image provides information from the 2-channel microwave radiometer that operated on the Ellen Browning Scripps Memorial Pier in La Jolla, California, during the EPCAPE campaign on December 14, 2023. The image shows, from top to bottom, observed brightness temperatures at 23.8 GHz (blue) and 31.4 GHz (red); retrieved precipitable water vapor from…

  • Improved Broadband Radiation Data Available From ARM Fixed Sites

    ARM radiometers operate near Lamont, Oklahoma, on April 18, 2023. ARM file photo. The Atmospheric Radiation Measurement (ARM) user facility processes yearly data from the Data Quality Assessment for ARM Radiation Data (QCRAD) product—the recommended ARM datastream for broadband surface irradiance measurements—to produce level 2 (c2) files. These files undergo additional processing to improve the…

  • Aerosol Optical Depth Best Estimate Production Data Available for 2 ARM Sites

    These time series of the combined aerosol optical depths (AODs) from 2016 to 2020 at ARM’s Eastern North Atlantic atmospheric observatory do not show seasonal patterns. Gaps in the time series are associated with data quality issues or instrument repair or replacement. Image is courtesy of Gabriel Gibler, Pacific Northwest National Laboratory.  Aerosol Optical Depth…

  • New Aerosol Hygroscopicity Kappa Data Available

    Sample CCNSMPSKAPPA plots from the Surface Atmosphere Integrated Field Laboratory (SAIL) field campaign in Colorado show kappa values within critical diameter-supersaturation field space (top) and a time series of kappa (bottom) on March 15, 2022, at ARM’s Aerosol Observing System (AOS) site on Crested Butte Mountain. The CCN particle counter and SMPS operated as part…