新的 UM 对流方案 CoMorph-A 对印度洋-太平洋和澳大利亚地区的影响

IF 3.6 4区 地球科学 Q1 Earth and Planetary Sciences
Hongyan Zhu, Debra Hudson, Chen Li, Li Shi, Bethan White, Griffith Young, Alison Stirling, Michael Whitall, Adrian Lock, Sally Lavender, Rachel Stratton
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引用次数: 0

摘要

英国气象局最新的耦合模式(GC4)和纯大气模式(GA8)引入了一种新的对流方案 "CoMorph-A"。在这项研究中,CoMorph-A 的影响被评估在纯大气模型相互比较项目模拟中,以及在耦合和非耦合模型的 28 天初始化预报中。初步结果显示,印度洋-太平洋和澳大利亚北部地区的预报有所改善,降雨偏差、马德登-朱利安涛动的模拟和预测、热带气旋预报和海洋大陆降雨的昼夜周期也有所改善。这些改进在初始化预报和气候模拟中基本一致,表明新方案在各种应用中都很有效。这种新对流方案的使用对未来的模型配置以及改进澳大利亚天气和气候的模拟和预测很有希望。英国气象局正在继续开发 CoMorph,不久将发布 B 版。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Impacts of the new UM convection scheme, CoMorph-A, over the Indo-Pacific and Australian regions

A new convection scheme, ‘CoMorph-A’, has been introduced into the latest UK Met Office coupled (GC4) and atmosphere-only (GA8) models. In this study, the impact of CoMorph-A is assessed in atmosphere-only Atmospheric Model Intercomparison Project simulations, as well as in sets of initialised 28-day forecasts with both the coupled and uncoupled models. Initial results show improvements over the Indo-Pacific and northern Australian regions, as well as improvements in the rainfall bias, Madden–Julian Oscillation simulation and prediction, tropical cyclone forecasts and the diurnal cycle of rainfall over the Maritime Continent. The improvements are mostly consistent across the initialised forecasts and the climate simulations, indicating the effectiveness of the new scheme across applications. The use of this new convection scheme is promising for future model configurations, and for improving the simulation and prediction of Australian weather and climate. The UK Met Office is continuing to develop CoMorph and will soon release version B.

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来源期刊
Journal of Southern Hemisphere Earth Systems Science
Journal of Southern Hemisphere Earth Systems Science Earth and Planetary Sciences-Oceanography
CiteScore
8.10
自引率
8.30%
发文量
0
审稿时长
>12 weeks
期刊介绍: The Journal of Southern Hemisphere Earth Systems Science (JSHESS) publishes broad areas of research with a distinct emphasis on the Southern Hemisphere. The scope of the Journal encompasses the study of the mean state, variability and change of the atmosphere, oceans, and land surface, including the cryosphere, from hemispheric to regional scales. general circulation of the atmosphere and oceans, climate change and variability , climate impacts, climate modelling , past change in the climate system including palaeoclimate variability, atmospheric dynamics, synoptic meteorology, mesoscale meteorology and severe weather, tropical meteorology, observation systems, remote sensing of atmospheric, oceanic and land surface processes, weather, climate and ocean prediction, atmospheric and oceanic composition and chemistry, physical oceanography, air‐sea interactions, coastal zone processes, hydrology, cryosphere‐atmosphere interactions, land surface‐atmosphere interactions, space weather, including impacts and mitigation on technology, ionospheric, magnetospheric, auroral and space physics, data assimilation applied to the above subject areas . Authors are encouraged to contact the Editor for specific advice on whether the subject matter of a proposed submission is appropriate for the Journal of Southern Hemisphere Earth Systems Science.
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