edu.ucar.opensky::articles:27227 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T18:49:14.408084 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7js9vn9 https://doi.org/10.5067/MODIS/MCD06COSP_M3_MODIS.062 https Related Dataset #1 MODIS (Aqua/Terra) Cloud Properties Level 3 monthly, 1x1 degree grid Assessing CESM2 clouds and their response to climate change using cloud regimes 2024-05-15T00:00:00Z publication https://n2t.org/ark:/85065/d7js9vn9 https://doi.org/10.1175/JCLI-D-23-0337.1 Davis, I. author Medeiros, Brian author UCAR/NCAR - Library publisher The Community Earth System Model, version 2 (CESM2), has a very high climate sensitivity driven by strong positive cloud feedbacks. To evaluate the simulated clouds in the present climate and characterize their response with climate warming, a clustering approach is applied to three independent satellite cloud products and a set of coupled climate simulations. Using k -means clustering with a Wasserstein distance cost function, a set of typical cloud con fi gura- tions is derived for the satellite cloud products. Using satellite simulator output, the model clouds are classi fi ed into the observed cloud regimes in both current and future climates. The model qualitatively reproduces the observed cloud con fi gurations in the historical simulation using the same time period as the satellite observations, but it struggles to capture the observed heterogeneity of clouds which leads to an overestimation of the frequency of a few preferred cloud regimes. This problem is especially apparent for boundary layer clouds. Those low-level cloud regimes also account for much of the climate response in the late twenty- fi rst century in four shared socioeconomic pathway simulations. The model reduces the frequency of occurrence of these low -cloud regimes, especially in tropical regions under large-scale subsidence, in favor of regimes that have weaker cloud radiative effects. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation