ARM

Category: Data Announcements

  • New Microwave Radiometer Retrieval Data Now Available

    This Microwave Radiometer Retrievals (MWRRET) quicklook image provides information from the TRacking Aerosol Convection interactions ExpeRiment (TRACER) near Houston, Texas, on June 22, 2022. 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 the physical method (blue) and statistical method (green);…

  • Evaluate Aerosol Optical Depth Best Estimate Data Product

    These time series of combined aerosol optical depths (AODs) from the AODBE 5-channel product exhibit seasonal patterns with large and small AOD values during summer and winter, respectively, at ARM’s Southern Great Plains atmospheric observatory. The time series have gaps, which are likely associated with data quality issues and required upgrades and replacements of ground-based…

  • LASSO-CACTI Production Data Set Available for Users

    Editor’s note: William Gustafson, principal investigator for the Large-Eddy Simulation (LES) ARM Symbiotic Simulation and Observation (LASSO) activity, provided the following post. This image captures a test simulation of deep convection on January 25, 2019, during the Cloud, Aerosol, and Complex Terrain Interactions (CACTI) field campaign in Argentina. The production version of the LASSO data…

  • Merged Aerosol Size Distribution Product Available for Evaluation

    This is an example of the merged size distribution VAP input (SMPS, APS) and output data from November 2021 at the Southern Great Plains atmospheric observatory. The data are averaged to a 1-hour time resolution to improve the VAP data quality. The Atmospheric Radiation Measurement (ARM) user facility currently operates at least four instruments that…

  • Atmospheric Emitted Radiance Interferometer Product Expands to 4 ARM Campaigns

    The figure shows a time series of temperature, relative humidity, and water vapor mixing ratios retrieved from AERIoe for the Cloud, Aerosol, and Complex Terrain Interactions (CACTI) field campaign in Argentina on February 24, 2019. The Atmospheric Emitted Radiance Interferometer Optimal Estimation value-added product (AERIoe VAP) is now available in evaluation mode for the following four field…

  • New and Improved ARM Broadband Radiation Data Now Available

    Radiometers operate in mountainous terrain as part of the Surface Atmosphere Integrated Field Laboratory (SAIL) campaign near Crested Butte, Colorado. The campaign took place from September 2021 to June 2023. Photo is by David Chu, Los Alamos National Laboratory. The Atmospheric Radiation Measurement (ARM) user facility’s longtime recommended datastream for broadband surface irradiance measurements is…

  • Updated: Access New Gridded Cloud Radar Product for COMBLE Campaign

    Editor’s note (July 20, 2023): A new KASACRGRIDPPI evaluation release for COMBLE, which uses b1-level calibrated PPI data as input, is now available. Output data from KASACRGRIDPPI are uncalibrated c1-level netCDF files, each comprising gridded observations for a single azimuthal scan. Surveillance scans are gridded for elevations of 0, 0.5, 1, and 2 degrees. Output…

  • Updated: New Cloud Radar Products Available From COMBLE Campaign

    Editor’s note (July 20, 2023): A new KASACRGRIDRHI evaluation release for COMBLE, which uses b1-level calibrated HSRHI data as input, is now available. The output is a single c1-level netCDF file containing calibrated radar moments remapped onto a 2D Cartesian grid. Access the data from the ARM Data Center. To cite the c1-level data, please…

  • Cloud Microphysics VAP Extended at Southern Great Plains

    Sample plots show the primary fields from MICROBASEKAPLUS (liquid water content, liquid effective radius, ice water content, and ice effective radius) on November 21, 2021, at ARM’s Southern Great Plains atmospheric observatory. New evaluation data are available from a value-added product (VAP) that builds upon the Atmospheric Radiation Measurement (ARM) user facility’s historical Continuous Baseline…

  • Wind Profiles Derived From Motion-Corrected MOSAiC Lidar Data

    Using this example of a wind profile scan on a tilted surface, winds are retrieved at height z by interpolating the radial velocities in each beam to height z and then applying the standard wind retrieval technique to the interpolated data. A new value-added product (VAP) developed specifically for the Multidisciplinary Drifting Observatory for the…