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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…
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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…
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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…
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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…
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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…
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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…
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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)…
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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…
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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…
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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…