化学-气候新模式GRIMs-CCM:化学-气象交互模拟的模式评价

IF 2.2 4区 地球科学 Q3 METEOROLOGY & ATMOSPHERIC SCIENCES
Seungun Lee, Rokjin J. Park, Song-You Hong, Myung-Seo Koo, Jaein I. Jeong, Sang-Wook Yeh, Seok-Woo Son
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引用次数: 2

摘要

摘要将GEOS-Chem化学输运模式的化学模块与GRIMs大气环流模式相结合,建立了一个新的化学-气候模式——全球/区域综合模式系统化学气候模式(GRIMs- ccm)。GRIMs- ccm由GRIMs模拟的气象变量驱动,利用模拟的气体和气溶胶浓度计算每个时间步长的辐射传输方程。通过将臭氧和气溶胶浓度与来自地面网络和卫星数据集的各自观测值进行比较来评估该模式。结果发现,GRIMs-CCM成功地再现了观测到的年平均气溶胶光学深度的空间分布,并捕获了总臭氧柱的季节和纬度变化。对地面空气中模拟气溶胶与观测值的对比表明,该模式再现了观测到的时空变化,但在土壤尘埃气溶胶方面存在偏差。我们还通过对工业化前和当前条件进行两组10年模拟来估计气溶胶对气候的影响。GRIMs-CCM显示了从工业化前到现在气候的- 0.30 wm - 2的气溶胶辐射强迫,与其他气候模式相互比较项目的值相当。这些结果表明,GRIMs-CCM适合于研究化学-气候相互作用及其随时间的变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A New Chemistry-Climate Model GRIMs-CCM: Model Evaluation of Interactive Chemistry-Meteorology Simulations

A New Chemistry-Climate Model GRIMs-CCM: Model Evaluation of Interactive Chemistry-Meteorology Simulations

Abstract

We describe a new chemistry-climate model, Global/Regional Integrated Model system Chemistry Climate Model (GRIMs-CCM), developed by coupling the chemistry modules of the GEOS-Chem chemical transport model to the GRIMs general circulation model. The GRIMs-CCM is driven by meteorological variables simulated by the GRIMs and uses simulated gas and aerosol concentrations to calculate the radiative transfer equations at each time step. The model is evaluated by comparing ozone and aerosol concentrations with respective observations from the surface networks and the satellite datasets. It is found that the GRIMs-CCM successfully reproduces the observed spatial distributions of annual-mean aerosol optical depth and captures the seasonal and latitudinal variations of total column ozone. The evaluation of simulated aerosols in surface air against the observations reveals that the model reproduces the observed temporal and spatial variations but shows biases in soil dust aerosols. We also estimate the climatic impact of aerosols by conducting two sets of 10-year simulations for the preindustrial and present conditions. The GRIMs-CCM shows the aerosol radiative forcing of − 0.30 W m−2 from the preindustrial to present-day climates, comparable to the values from other climate model intercomparison projects. These results suggest that the GRIMs-CCM is suitable for studying chemistry-climate interactions and their changes over time.

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来源期刊
Asia-Pacific Journal of Atmospheric Sciences
Asia-Pacific Journal of Atmospheric Sciences 地学-气象与大气科学
CiteScore
5.50
自引率
4.30%
发文量
34
审稿时长
>12 weeks
期刊介绍: The Asia-Pacific Journal of Atmospheric Sciences (APJAS) is an international journal of the Korean Meteorological Society (KMS), published fully in English. It has started from 2008 by succeeding the KMS'' former journal, the Journal of the Korean Meteorological Society (JKMS), which published a total of 47 volumes as of 2011, in its time-honored tradition since 1965. Since 2008, the APJAS is included in the journal list of Thomson Reuters’ SCIE (Science Citation Index Expanded) and also in SCOPUS, the Elsevier Bibliographic Database, indicating the increased awareness and quality of the journal.
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