Articles | Volume 23, issue 4
https://doi.org/10.5194/acp-23-2579-2023
https://doi.org/10.5194/acp-23-2579-2023
Research article
 | 
23 Feb 2023
Research article |  | 23 Feb 2023

Satellite remote sensing of regional and seasonal Arctic cooling showing a multi-decadal trend towards brighter and more liquid clouds

Luca Lelli, Marco Vountas, Narges Khosravi, and John Philipp Burrows

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Cited articles

Arosio, C., Rozanov, A., Malinina, E., Weber, M., and Burrows, J. P.: Merging of ozone profiles from SCIAMACHY, OMPS and SAGE II observations to study stratospheric ozone changes, Atmos. Meas. Tech., 12, 2423–2444, https://doi.org/10.5194/amt-12-2423-2019, 2019. a
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Bennartz, R., Shupe, M., Turner, D., Walden, V., Steffen K., Cox, C., Kulie, M., Miller, N., and Pettersen, C.: Greenland melt extent enhanced by low-level liquid clouds, Nature, 496, 83–86, https://doi.org/10.1038/nature12002, 2013. a
Bjordal, J., Storelvmo, T., Alterskjær, K., and Carlsen, T.: Equilibrium climate sensitivity above 5 C plausible due to state-dependent cloud feedback, Nat. Geosci., 13, 718–721, https://doi.org/10.1038/s41561-020-00649-1, 2020. a
Boccolari, M. and Parmiggiani, F.: Trends and variability of cloud fraction cover in the Arctic, 1982–2009, Theor. Appl. Climatol., 132, 739–749, https://doi.org/10.1007/s00704-017-2125-6, 2018. a
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Arctic amplification describes the recent period in which temperatures have been rising twice as fast as or more than the global average and sea ice and the Greenland ice shelf are approaching a tipping point. Hence, the Arctic ability to reflect solar energy decreases and absorption by the surface increases. Using 2 decades of complementary satellite data, we discover that clouds unexpectedly increase the pan-Arctic reflectance by increasing their liquid water content, thus cooling the Arctic.
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