Exploring new EarthCARE observations for evaluating Greenland clouds in the regional climate model RACMO2.4

Thirza N. Feenstra, Willem Jan van de Berg, Gerd-Jan van Zadelhoff, David P. Donovan, Christiaan T. van Dalum, and Michiel R. van den Broeke

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Month	HTML	PDF	XML	Total
Nov 2025	48	7	4	59
Dec 2025	106	85	17	208
Jan 2026	100	59	9	168
Feb 2026	238	78	8	324
Mar 2026	190	56	7	253

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Latest update: 01 Apr 2026

Short summary

Cloud representation brings large uncertainties in polar climate modeling. We show the first evaluation of Greenland clouds in the Regional Atmospheric Climate Model (RACMO2.4) with new EarthCARE satellite data. Comparing lidar and radar observations and retrieved cloud profiles with co-located RACMO output, we find RACMO captures low ice clouds but underestimates high clouds, mid-altitude liquid clouds, and snowfall. These results highlight EarthCARE's potential to improve polar climate models.