Including thermospheric processes in the Met Office Unified Model for weather and climate

将热层过程纳入英国气象局天气和气候统一模型中

基本信息

批准号：
NE/R006660/1
负责人：
Daniel Griffin
金额：
$ 1.14万
依托单位：
UNIVERSITY OF EXETER
依托单位国家：
英国
项目类别：
Fellowship
财政年份：
2017
资助国家：
英国
起止时间：
2017 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=NE%2FR006660%2F1
关键词：
Including thermospheric processes Met Office

项目摘要

Space weather includes all of the matter and radiation that is emitted by the sun, and interacts with the Earth's atmosphere. Major space weather events such as solar flares and coronal mass ejections can significantly harm technology on Earth, for example by damaging satellites, causing power grid failures, or disrupting radio communications. The increasing reliance upon technology that is vulnerable to space weather means that the risk they pose is higher than ever before.The Met Office aims to develop their Unified Model in order to simulate, predict and mitigate the effects of space weather. The Unified Model is a computer model of the atmosphere that simulates the Earth's weather and climate, and is used for producing weather forecasts and climate predictions. It currently simulates the atmosphere up to altitudes of 100km. The aim of this project is to modify the UM's `dynamical core', the model component that takes care of the large-scale atmospheric fluid dynamics, so that it can make stable simulations of the atmosphere to higher altitudes, perhaps as high as 600km. This will be achieved by including new physical processes that aren't currently included in the UM, and by implementing a sophisticated new numerical method, developed under the applicant's Ph.D. project, to solve the resulting equations. Extending the dynamical core in this way is a critical pre-requisite for further development of the UM into state of the art tool for space weather forecasting and for research into the effects of space weather on climate.

太空天气包括太阳发出的所有物质和辐射，并与地球大气相互作用。太阳耀斑和冠状质量弹出等重大太空天气事件可能会严重损害地球上的技术，例如，损坏卫星，导致电网故障或破坏无线电通信。越来越依赖容易受到太空天气的技术的依赖意味着它们的构成风险比以往任何时候都更高。大都会办公室旨在开发其统一模型，以模拟，预测和减轻太空天气的影响。统一模型是模拟地球天气和气候的大气模型，用于产生天气预测和气候预测。目前，它模拟了100公里高度的气氛。该项目的目的是修改UM的“动力学核心”，该模型组件要照顾大规模的大气流体动力学，以便它可以使大气稳定模拟到更高的高度，也许高达600公里。这将通过包括当前未包含在UM中的新物理过程，并实施在申请人的博士学位下开发的复杂新数值方法来实现。项目，以求解结果方程。以这种方式扩展动力学核心是将UM进一步开发到最先进工具的重要前提条件，以进行太空天气预报以及研究太空天气对气候的影响。