Updated data from the Surface Spectral Albedo value-added product (SURFSPECALB VAP) are available for the Atmospheric Radiation Measurement (ARM) user facility’s North Slope of Alaska (NSA) and Southern Great Plains (SGP) atmospheric observatories. This VAP produces a near-continuous best estimate of high-spectral-resolution albedo—surface reflectivity—using measurements from multifilter radiometers and multifilter rotating shadowband radiometers.
New SURFSPECALB files are available for the NSA from June 11, 2016, through October 5, 2020; and for the SGP from December 4, 2018, through August 4, 2020.
ARM also recently completed end-to-end reprocessing of historical SURFSPECALB data for both observatories. The reprocessing brings all data up to current ARM data standards and corrects minor issues that do not affect the data quality. These corrections should not affect analysis done with previous data.
The reprocessing covers NSA data from April 7, 1998, through June 10, 2016; and SGP data from January 1, 2004, through December 3, 2018.
Scientists can use the reprocessed and new SURFSPECALB data now. The new files capture changes made during the reprocessing.
Regular annual processing of SURFSPECALB for the NSA and monthly processing for the SGP will resume this year.
To cite the SURFSPECALB data, please use doi:10.5439/1095394.# # #
ARM is a DOE Office of Science user facility operated by nine DOE national laboratories.