High resolution modelling of valley cold pools

被引：34

作者：

Vosper, Simon ^{[1
]}

Carter, Emilie ^{[1
]}

Lean, Humphrey ^{[1
]}

Lock, Adrian ^{[1
]}

Clark, Peter ^{[2
]}

Webster, Stuart ^{[1
]}

机构：

[1] Met Off, Exeter EX1 3PB, Devon, England

[2] Univ Reading, Dept Meteorol, Reading RG6 2AH, Berks, England

来源：

ATMOSPHERIC SCIENCE LETTERS | 2013年 / 14卷 / 03期

关键词：

complex terrain; drainage flow; stable boundary layer; Unified Model; vertical resolution; OFFICE UNIFIED MODEL; SCHEME; CONVECTION;

D O I：

10.1002/asl2.439

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The Met Office Unified Model has been adapted to run with a 100m horizontal grid length for a region of complex terrain whose valleys are too narrow to be represented in the operational forecast (1.5km grid length) model. Forecasts of temperatures are compared with observations from the COLd air Pooling EXperiment. The model provides a realistic representation of valley cold pools which form during stable nights, although the predictions are shown to be sensitive to vertical resolution. Reducing the vertical grid spacing near the surface results in lower night-time temperatures and larger, more realistic, valley-hill temperature contrasts.

引用

页码：193 / 199

页数：7

共 14 条

[1] The Joint UK Land Environment Simulator (JULES), model description - Part 1: Energy and water fluxes [J].