ARM

Tag: NIMFR

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

    Aerosol Optical Depth Best Estimate 5-Channel (AODBE5CH) production data are now available for the Atmospheric Radiation Measurement (ARM) user facility’s Eastern North Atlantic (ENA) and Southern Great Plains (SGP) atmospheric observatories. Scientists can use the AODBE5CH value-added product (VAP) to analyze the variability of aerosol loading over multiple time scales and to demonstrate the importance…

  • Surface Spectral Albedo Product Updated

    In fiscal year 2021, the Atmospheric Radiation Measurement (ARM) user facility added a seventh channel to its multifilter rotating shadowband radiometers, multifilter radiometers, and normal incidence multifilter radiometers. To support the addition of the 1625 nm channel, ARM recently updated the Surface Spectral Albedo value-added product (SURFSPECALB VAP) for its North Slope of Alaska (NSA) and Southern Great Plains…

  • Evaluate Aerosol Optical Depth Best Estimate Data Product

    New data are available from the Aerosol Optical Depth Best Estimate value-added product (AODBE VAP), previously known as Quality Control Aerosol Optical Depth (QCAOD). The VAP was renamed to better describe the data product. AODBE combines individual AODs measured by four co-located instruments: two multifilter rotating shadowband radiometers, one normal incidence multifilter radiometer, and one…

  • ARM Finishes Radiometer Upgrades; Related Data Product Updates Underway

    In fiscal year 2021, the Atmospheric Radiation Measurement (ARM) user facility completed a major upgrade of shortwave spectral instruments at its ground-based sites. ARM added a seventh channel to its multifilter rotating shadowband radiometers (MFRSRs), multifilter radiometers, and normal incidence multifilter radiometers. Data from these instruments are used to derive column-integrated properties, such as aerosol…

  • New Journal Article Highlights ARM Aerosol Data Set

    Value-added product leverages long-term Southern Great Plains data A March 2021 article in the journal Scientific Data presents two decades of aerosol data from the Atmospheric Radiation Measurement (ARM) user facility’s Southern Great Plains (SGP) atmospheric observatory. The article highlights the Quality Control Aerosol Optical Depth (QCAOD) value-added product. QCAOD merges individual aerosol optical depth…

  • Aerosol Optical Depth Measurements Available as Value-Added Product

    Aerosol optical depth (AOD) is a measure of the total aerosol burden in the atmosphere. The spectral dependence of AOD, typically described by the Angstrom exponent, is also an indicator of particle size. Small Angstrom exponent values (near zero) indicate presence of large particles, and vice versa. The AOD value-added product (VAP) provides both the…

  • Aerosol Optical Depth Measurements Available as Value-Added Product

    Aerosol optical depth (AOD) measures total aerosol burden in the atmosphere. The spectral dependence of AOD, typically described by the Angstrom exponent, is also an indicator of particle size. Small Angstrom exponent values (near zero) indicate presence of large particles, and vice versa. The newly developed AOD value-added product (VAP) provides both the wavelength-dependent values…