Articles | Volume 14, issue 4
The Cryosphere, 14, 1209–1223, 2020
https://doi.org/10.5194/tc-14-1209-2020
The Cryosphere, 14, 1209–1223, 2020
https://doi.org/10.5194/tc-14-1209-2020
Research article
15 Apr 2020
Research article | 15 Apr 2020

Unprecedented atmospheric conditions (1948–2019) drive the 2019 exceptional melting season over the Greenland ice sheet

Marco Tedesco and Xavier Fettweis

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Evaluating Greenland Surface-Mass-Balance and Firn-Densification Data Using ICESat-2 Altimetry
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Revised manuscript accepted for TC
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Surface melting over the Greenland ice sheet derived from enhanced resolution passive microwave brightness temperatures (1979–2019)
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Spectral attenuation coefficients from measurements of light transmission in bare ice on the Greenland Ice Sheet
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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. 
Bennartz, R., Shupe, M., Turner, D., Walden, V., Steffen, K., Cox, C.,. Kulie, M. S., Miller, N., and Pettersen, C.: July 2012 Greenland melt extent enhanced by low-level liquid clouds, Nature, 496, 83–86, https://doi.org/10.1038/nature12002, 2013. 
Casey, K. A., Polashenski, C. M., Chen, J., and Tedesco, M.: Impact of MODIS sensor calibration updates on Greenland Ice Sheet surface reflectance and albedo trends, The Cryosphere, 11, 1781–1795, https://doi.org/10.5194/tc-11-1781-2017, 2017. 
Delhasse, A., Fettweis, X., Kittel, C., Amory, C., and Agosta, C.: Brief communication: Impact of the recent atmospheric circulation change in summer on the future surface mass balance of the Greenland Ice Sheet, The Cryosphere, 12, 3409–3418, https://doi.org/10.5194/tc-12-3409-2018, 2018. 
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Short summary
Unprecedented atmospheric conditions occurring in the summer of 2019 over Greenland promoted new record or close-to-record values of mass loss. Summer of 2019 was characterized by an exceptional persistence of anticyclonic conditions that enhanced melting.