ARM

Tag: TRACER

  • Large-Scale Forcing Data Released for TRACER Campaign

    Continuous large-scale forcing data are now available for the TRacking Aerosol Convection interactions ExpeRiment (TRACER), conducted by the Atmospheric Radiation Measurement (ARM) user facility from October 2021 through September 2022 in the Houston, Texas, area. The derived forcing data are based on a constrained variational analysis approach (Zhang and Lin 1997; Zhang et al. 2001).…

  • TRACER 3-Channel Microwave Radiometer Retrieval Data Now Available

    This Microwave Radiometer Retrievals version 2 (MWRRETv2) quicklook image provides data from February 2, 2022, at the ARM Mobile Facility site in La Porte, Texas, during the TRacking Aerosol Convection interactions ExpeRiment (TRACER). From top to bottom, panels show observed brightness temperatures at 23.8 (blue), 30 (red), and 89 GHz (green); physically (red and blue)…

  • TRACER Cell Tracking Data Shed Light on Convective Evolution

    Using data from the second-generation C-Band Scanning ARM Precipitation Radar (CSAPR2), the panels provide reflectivity (a, c, e, g) and Doppler velocity (b, d, f, h) processed from three range-height indicator scans (a–f) and the lowest plan position indicator scan (g, h) during the TRacking Aerosol Convection interactions ExpeRiment (TRACER) on August 17, 2022, in…

  • 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);…

  • ARM Best Estimate Data Produced for TRACER Campaign

    ARMBEATM relative humidity (top) and surface precipitation (bottom) are shown for the first 120 days of 2022 during the TRacking Aerosol Convection interactions Experiment (TRACER). The Atmospheric Radiation Measurement (ARM) user facility provides tailored datastreams known as ARM Best Estimate (ARMBE) data products for use in the evaluation of global climate models. Two ARMBE data…

  • Radiative Flux Analysis Data Released for TRACER Campaign

    This plot shows irradiance and albedo—surface reflectivity—from the RADFLUXANAL value-added product at the main site of the TRacking Aerosol Convection interactions ExpeRiment (TRACER) from June 20 to 21, 2022. The Radiative Flux Analysis value-added product (RADFLUXANAL VAP) is now available for the 2021–2022 TRacking Aerosol Convection interactions ExpeRiment (TRACER) near Houston, Texas. RADFLUXANAL calculates clear-sky irradiance…

  • New Broadband Irradiance Data Produced for 2 ARM Sites

    This collection of radiometers at Oliktok Point, Alaska, provided continuous measurements of broadband shortwave (solar) and longwave (infrared) irradiances for downwelling components. ARM stopped collecting data at Oliktok Point in June 2021 after almost eight years. New c2-level data are available from the Data Quality Assessment for ARM Radiation Data (QCRAD) product at Oliktok Point,…

  • Register for TRACER Science Workshop

    Dark clouds streak above the ARM Mobile Facility operating in La Porte, Texas, as part of the TRacking Aerosol Convection interactions ExpeRiment (TRACER) in June 2022. A TRacking Aerosol Convection interactions ExpeRiment (TRACER) science workshop will be held Tuesday, May 16, and Wednesday, May 17, 2023, at Texas Southern University in Houston, Texas, and online.…

  • 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…