Articles | Volume 17, issue 12
Brief communication
06 Dec 2023
Brief communication |  | 06 Dec 2023

Brief communication: Surface energy balance differences over Greenland between ERA5 and ERA-Interim

Uta Krebs-Kanzow, Christian B. Rodehacke, and Gerrit Lohmann

Data sets

ECMWF Reanalysis - Interim (ERA-Interim) ECMWF

PROMICE and GC-Net automated weather station data in Greenland P. How, J. Abermann, A. P. Ahlstrom, S. B. Andersen, J. E. Box, M. Citterio, W. T. Colgan, R. S. Fausto, N. B. Karlsson, J. Jakobsen, K. Langley, S. H. Larsen, K. D. Mankoff, A. O. Pedersen, A. Rutishauser, C. L. Shield, A. M. Solgaard, D. van As, B. Vandecrux, and P. J. Wright

ERA5 monthly averaged data on single levels from 1940 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut

Short summary
We compare components of the surface energy balance from two datasets, ERA5 and ERA-Interim, which can be used to estimate the surface mass balance (SMB) on the Greenland Ice Sheet (GrIS). ERA5 differs significantly from ERA-Interim, especially in the melt regions with lower temperatures and stronger shortwave radiation. Consequently, methods that previously estimated the GrIS SMB from ERA-Interim need to be carefully recalibrated before conversion to ERA5 forcing.