ARM

Tag: QCRAD

  • New Radiation Data Quality (QCRAD) VAP Release Available for AWARE Field Campaign

    The top plot shows best estimates of global shortwave (GSW) downwelling radiation at McMurdo Station, Antarctica, on January 1, 2016, during the AWARE field campaign. The bottom plot shows quality control (QC) flag values indicating the sources of the best estimates for GSW. The Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product (VAP)…

  • New Radiation Data Quality (QCRAD) VAP Release Now Available

    A broadband radiometer station at ARM’s Southern Great Plains Central Facility near Lamont, Oklahoma, measures broadband solar (shortwave) and infrared (longwave) radiation. Data from this station have been processed as part of a new release for the Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product. A new level 2 (c2/s2) release for the…

  • Radiation Data Quality VAP Expands to LASIC Field Campaign Site

    Radiometers on Ascension Island helped collect data as part of the LASIC field campaign, which studied smoke particles and their interaction with clouds as they passed westward over the Atlantic Ocean. A new release for the Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product (VAP) covers the mobile deployment to Ascension Island for…

  • QCRAD Value-Added Data Product Updates Available

    Level 2 (c2/s2) data for the Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product (VAP) have now been processed at all Atmospheric Radiation Measurement (ARM) user facility fixed sites through summer 2017. These sites include the Southern Great Plains central and extended facilities, Barrow (known officially as Utqiaġvik) and Oliktok Point, Alaska, and…

  • Broadband Irradiance VAPs Now Running at New SGP Extended Facilities

    Data plots are shown for extended facilities E39, E40, and E41 located near Lamont, Oklahoma, for the best-estimate total downwelling shortwave irradiance from QCRAD. Two value-added products (VAPs)—Data Quality Assessment for ARM Radiation Data (QCRAD) and Radiative Flux Analysis (RADFLUX)—are now running at the new extended facilities at the ARM Climate Research Facility’s Southern Great…

  • Data Quality Assessment for ARM Radiation Data (QCRAD) VAP Now Operational

    An example plot shows diffuse shortwave data at the Azores for the year 2015. The red curve represents physically possible limits; the green and blue curves represent empirically determined limits for indeterminate and bad data respectively. Points identified by a misaligned solar tracker are shown in cyan. The Data Quality Assessment for ARM Radiation Data…

  • New Radiative Flux Analysis VAP Now Operational

    Radiative flux analysis data of irradiance and cloud fraction are shown here for the Southern Great Plains. The Radiative Flux Analysis VAP is an implementation of a series of algorithms that estimate clear-sky broadband surface irradiances, cloud fraction, optical depth, cloud transmissivity, and cloud radiative effects. This VAP is an updated version of the Shortwave…

  • Second Version of Long-Term Climate Modeling Best Estimate Data Released

    Version 2 of the Climate Modeling Best Estimate includes the data source information for cloud fraction, as depicted in this data plot. With major improvements in the cloud fraction, cloud liquid water path (LWP), precipitable water vapor (PWV), and surface radiative fluxes, a new version of the “Climate Modeling Best Estimate” (CMBE) is now available…