A study of processes controlling convection over complex terrain (UK-COPS)

复杂地形上对流控制过程的研究（UK-COPS）

• 批准号: NE/E018483/1
• 负责人: Alan Blyth
• 金额: $ 118.49万
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FE018483%2F1
• 关键词: study; processes; controlling; convection; over

Flooding caused by heavy convective rain is a serious problem in the UK. Flash floods in hilly terrain can be particularly damaging. The Convective Orographically-induced Precipitation Study (COPS) is an international project designed to address this problem and to improve predictions of heavy convective precipitation. This proposal is the UK component of COPS which adds specific objectives complementary to those of other COPS partners. It will produce an understanding of the processes that control the formation and development of convective precipitation over hilly terrain which will be used by scientists within the Mesoscale Modelling group of the Met Office in reducing uncertainty in predictability of convection over complex terrain with the Unified Model (UM). This will be achieved by synthesising COPS data alongside modelling activities focussed on interpreting the data. The problem involves five integrated parts that need to be tackled together. (1) The thermally driven flows in complex terrain depends critically on the surface exchanges of heat and water. (2) The composition and size distribution of the aerosol particles have a crucial influence on the microphysics and dynamics of the convective clouds and particularly the amount of precipitation. (3) The thermals and other features in the boundary layer that transport heat, moisture and aerosols to the convective clouds. (4) The development of precipitation depends critically on the detailed microphysics and dynamics of the convective clouds. (5) Finally, reducing uncertainty in predictability of the location and timing of convective storms in hilly terrain with the UM, depends on the knowledge gained from these four parts. In particular the relative contributions of different sources of uncertainty in predictability of convective storms in hilly terrain will be quantified, thus providing the basis for an ensemble forecast system.

在英国，强对流雨造成的洪水是一个严重的问题。山洪暴发在丘陵地带可能特别具有破坏性。对流地形诱导降水研究（COPS）是一个国际项目，旨在解决这一问题，并提高强对流降水的预测。该提案是COPS的联合王国部分，增加了补充其他COPS伙伴的具体目标。它将产生控制对流降水的形成和发展的过程的理解在丘陵地形，这将由科学家在气象局的中尺度模拟组在减少不确定性对流的可预测性在复杂地形的统一模型（UM）。这将通过综合COPS数据以及侧重于解释数据的建模活动来实现。这个问题涉及五个整体，需要一起解决。(1)复杂地形中的热驱动流动主要依赖于地表的水热交换。(2)气溶胶粒子的组成和尺寸分布对对流云的微观物理和动力学，特别是降水量有着至关重要的影响。(3)边界层中的热气流和其他特征，将热量、水分和气溶胶输送到对流云。(4)降水的发展关键取决于对流云的详细微物理和动力学。(5)最后，减少不确定性的可预测性的位置和时间的对流风暴在丘陵地形与UM，取决于从这四个部分获得的知识。特别是在丘陵地形的对流风暴的可预测性的不同来源的不确定性的相对贡献将被量化，从而提供集合预报系统的基础。

项目成果

Observations of the Evolution of the Nocturnal and Convective Boundary Layers and the Structure of Open-Celled Convection on 14 June 2002

2002 年 6 月 14 日夜间和对流边界层演变以及开孔对流结构的观测

• DOI: 10.1175/2010mwr3200.1
• 发表时间: 2010
• 期刊: Monthly Weather Review
• 影响因子: 3.2
• 作者: Bennett L

Water vapour intercomparison effort in the frame of the Convective and Orographically-induced Precipitation Study

对流和地形诱发降水研究框架内的水汽比对工作

• DOI: 10.1063/1.3116952
• 发表时间: 2009
• 作者: Bhawar R

Initiation of convection over the Black Forest mountains during COPS IOP15a

• DOI: 10.1002/qj.760
• 发表时间: 2011-01
• 期刊: Quarterly Journal of the Royal Meteorological Society
• 影响因子: 8.9
• 作者: L. Bennett;A. Blyth;R. Burton;A. Gadian;T. Weckwerth;A. Behrendt;P. Di Girolamo;M. Dorninger;Sarah‐Jane Lock;V. Smith;S. Mobbs

Observations of convection initiation and development from the Doppler on Wheels radars and comparison with high resolution WRF simulations

通过轮上多普勒雷达观察对流的产生和发展并与高分辨率 WRF 模拟进行比较

• 发表时间: 2009
• 作者: Bennett LJ

A convection initiation case study during COPS: 6 August 2007

COPS 期间的对流启动案例研究：2007 年 8 月 6 日

• 作者: Bennett LJ