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Simulation of the Interface between the Indian Summer Monsoon and the East Asian Summer Monsoon:Intercomparison between mpi-esm and ECHAM5/mpi-OM

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Advances in Atmospheric Sciences 2016年第3期33卷 294-308页

作者： Yiran GUO Jie CAO Hui LI Jian WANG Yuchao DING Department of Atmospheric Sciences Yunnan UniversityKunming 650091 Yunnan Key Laboratory of International Rivers and Transboundary Eco-security Kunming 650091

The time-mean and interannual variability of the interface between the Indian summer monsoon and East Asian summer monsoon （IIE） was assessed using both Max-Planck-Institute Earth System Model （mpi-esm） and ECHAM5/mpi-OM and by calculating diagnostics and skill metrics around the IIE area. Progress has been made in modeling these aspects by moving from ECHAM5/mpi-OM to mpi-esm. mpi-esm is more skillful than ECHAM5/mpi-OM in modeling the time-mean state and the extreme condition of the IIE. Though simulation of the interannual variability significantly deviates to some extent in both mpi-esm and ECHAM5/mpi-OM, mpi-esm-LR shows better skill in reflecting the relationship among sea surface temperature anomalies over the Pacific, circulation anomalies over East Asia, and liE variability. The temperature becomes warmer under the RCP2.6 and RCP8.5 scenarios in comparison with the historical experiments, but the position of the liE and the key physical process in relation to the IIE variability almost remains the same, suggesting that the Indian summer monsoon tends to change in phase with the East Asian summer monsoon under each RCP scenario. The relatively realistic description of the physical processes modulated by terrain in mpi-esm may be one of the most important reasons why mpi-esm performs better in simulating the liE.

关键词： Asian summer monsoon IIE mpi-esm ECHAM5/mpi-OM intercomparison

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An Analysis of the Spectral Energetics for a Planet Experiencing Rapid Greenhouse Gas Emissions

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Atmospheric and Climate Sciences 2017年第1期7卷 117-126页

作者： André Ferreira Aranha José Augusto P. Veiga UNINORTE Laureate International Universities Manaus Brazil Department of Meteorology Institute of Technology Amazonas State University Manaus Brazil

So far, energetics studies related to climate change have focused on the disturbed and undisturbed kinetic and potential energies, as well as their transformations, without dealing with the energetics involved in the phenomena of different spatial scales. Thus, the present work reports the first analysis of the spectral energetics for a condition of climate change, followed by the high-range emission scenario, RCP8.5, which originated from the new Max Planck Institute Earth System Model (mpi-esm). The results showed that both types of generation (Go and Gn), baroclinic processes (Co and Cn), kinetic energies (Ko and Kn) and the barotropic process, Mn, significantly increase in the condition of a warming climate. Moreover, the results still reveal that in the most components of the energetics, is the planetary scale waves that are the most impacted under a climate change scenario. These results highlight that global warming can have different impacts on particular types of motions.

关键词： Energetics Global Energetics Spectral Energetics Climate Change mpi-esm Model

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