Articles | Volume 15, issue 6
Research article
14 Jun 2021
Research article |  | 14 Jun 2021

Surface melting over the Greenland ice sheet derived from enhanced resolution passive microwave brightness temperatures (1979–2019)

Paolo Colosio, Marco Tedesco, Roberto Ranzi, and Xavier Fettweis

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Cited articles

Abdalati, W. and Steffen, K.: Passive microwave-derived snow melt regions on the Greenland ice sheet, Geophys. Res. Lett., 22, 787–790,, 1995. 
Abdalati, W., Steffen, K., Otto, C., and Jezek, K. C.: Comparison of brightness temperatures from SSMI instruments on the DMSP F8 and FII satellites for Antarctica and the Greenland ice sheet, Int. J. Remote Sens., 16, 1223–1229,, 1995. 
Alexander, P. M., Tedesco, M., Fettweis, X., van de Wal, R. S. W., Smeets, C. J. P. P., and van den Broeke, M. R.: Assessing spatio-temporal variability and trends in modelled and measured Greenland Ice Sheet albedo (2000–2013), The Cryosphere, 8, 2293–2312,, 2014. 
Alexander, P. M., Tedesco, M., Schlegel, N.-J., Luthcke, S. B., Fettweis, X., and Larour, E.: Greenland Ice Sheet seasonal and spatial mass variability from model simulations and GRACE (2003–2012), The Cryosphere, 10, 1259–1277,, 2016. 
Armstrong, R., Knowles, K., Brodzik, M., and Hardman, M. A.: DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures, Version 2, NASA DAAC at the National Snow and Ice Data Center, Boulder, Colorado, USA, available at: (last access: 26 May 2021), 1994. 
Short summary
We use a new satellite dataset to study the spatiotemporal evolution of surface melting over Greenland at an enhanced resolution of 3.125 km. Using meteorological data and the MAR model, we observe that a dynamic algorithm can best detect surface melting. We found that the melting season is elongating, the melt extent is increasing and that high-resolution data better describe the spatiotemporal evolution of the melting season, which is crucial to improve estimates of sea level rise.