­The Surface Longwave Downward Fluxes of the NASA GEWEX SRB Release 4.0‑IP Products: Validation Against the Surface-Based BSRN and PMEL Observed Data

Taiping Zhang1, Paul W Stackhouse Jr2, Stephen J Cox3 and Jennifer Colleen Mikovitz3, (1)Science Systems and Applications, Inc., Lanham, MD, United States, (2)NASA Langley Research Center, Hampton, VA, United States, (3)Science Systems and Applications, Inc. Hampton, Hampton, VA, United States