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• W3118466360 abstract "Climate models are essential tools for studying and projecting climate change and climate variability. A thorough assessment of a model’s ability toreproduce the observed present-day climate is therefore a crucial prerequisite for building up confidence in the model’s ability to project the future climate. This includes modes of natural climate variability such asthe El Nino-Southern Oscillation (ENSO)and the Pacific Decadal Oscillation (PDO)that are spontaneously generated and that need not exhibit the same chronological sequence in models as in nature.The main focus of this thesis is an assessment of representation of ENSOand PDO as well as the impact of these climate modes on cloud parameters and precipitation. For this,different simulations from theMax Planck Institute Earth System Model (MPI-ESM) and the ECHAM/MESSy Atmospheric Chemistry Model (EMAC) are evaluated. These include a coupled fully coupled ocean atmosphere simulation from the MPI-ESM, a simulation with prescribed SSTs from both MPI-ESM and EMAC, and an EMAC simulation which isnudgedtowards realistic meteorology. To evaluate the model simulations, a variety of different observational data setsare used.To evaluate the climate modes,the National Center for Atmospheric Research(NCAR)Climate Variability Diagnostics Package (CVDP) has been implemented into the Earth System Model EvaluationTool (ESMValTool)as part of this thesis. The CVDP computes statistical key metrics of internal climate variability for model simulations and observational data sets. The ESMValTool isa software tool developed by multiple institutions that aimsat improving routine Earth System Models (ESM) evaluation. Additionally, new diagnostics have been integrated into the ESMValToolto evaluate the response of clouds and precipitation to the selected modes of climate variability ENSO and PDO. The results show that the spatial structure of the PDO simulated by the MPI-ESMcoupledis quite realisticand in terms of temporal variability, the MPI-ESM coupled produces a periodic response of approximately the same frequency as observed –that is, periods of 3 –7 years for ENSO, and ~20 years for the PDO. However, the MPI-ESMcoupledmodel only weakly resembles the observed asymmetry between the El Ninoand La Ninaevents, but simulates a quite realistic SST evolution to ENSO. Teleconnections of the atmospheric circulation with ENSO including corresponding changes in temperature, precipitation, and cloud properties are reasonably well captured by the MPI-ESM and EMAC modelsimulations.Systematicdifferences in the performance of the coupled and theatmosphere-only model runs with MPI-ESMand between the free-running and the nudged EMAC model simulationsin reproducing the observed relationships between PDO, ENSO, and local SST changes and cloud parameters and precipitation are rather small.This points to the necessity toimprove model parameterizations of the relevant physical processes such as convection or boundary layer processes." @default.
• W3118466360 created "2021-01-18" @default.
• W3118466360 creator A5056490662 @default.
• W3118466360 date "2015-10-01" @default.
• W3118466360 modified "2023-09-27" @default.
• W3118466360 title "Climate variability modes and their impact on the hydrological cycle - A model evaluation study" @default.
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• W3118466360 cites W1544875105 @default.
• W3118466360 cites W1941608869 @default.
• W3118466360 cites W1957506591 @default.
• W3118466360 cites W1966223697 @default.
• W3118466360 cites W1971665389 @default.
• W3118466360 cites W1977412301 @default.
• W3118466360 cites W1979615854 @default.
• W3118466360 cites W1980121541 @default.
• W3118466360 cites W1982367318 @default.
• W3118466360 cites W1985934018 @default.
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• W3118466360 cites W1997795879 @default.
• W3118466360 cites W1997987088 @default.
• W3118466360 cites W2005013070 @default.
• W3118466360 cites W2006038825 @default.
• W3118466360 cites W2008505918 @default.
• W3118466360 cites W2012580522 @default.
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• W3118466360 cites W2017616744 @default.
• W3118466360 cites W2017849453 @default.
• W3118466360 cites W2022548072 @default.
• W3118466360 cites W2024966118 @default.
• W3118466360 cites W2025660542 @default.
• W3118466360 cites W2027628663 @default.
• W3118466360 cites W2031565356 @default.
• W3118466360 cites W2034443188 @default.
• W3118466360 cites W2041620570 @default.
• W3118466360 cites W2042290651 @default.
• W3118466360 cites W2045470555 @default.
• W3118466360 cites W2049448305 @default.
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• W3118466360 cites W2061328952 @default.
• W3118466360 cites W2070508879 @default.
• W3118466360 cites W2072339507 @default.
• W3118466360 cites W2076675173 @default.
• W3118466360 cites W2077424851 @default.
• W3118466360 cites W2077746814 @default.
• W3118466360 cites W2081049541 @default.
• W3118466360 cites W2082698062 @default.
• W3118466360 cites W2092384804 @default.
• W3118466360 cites W2092497323 @default.
• W3118466360 cites W2093401535 @default.
• W3118466360 cites W2096587785 @default.
• W3118466360 cites W2101871313 @default.
• W3118466360 cites W2106919405 @default.
• W3118466360 cites W2113512933 @default.
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