Evaluation of surface air temperature in the HARMONIE-AROME weather model during a heatwave in the coastal city of Turku, Finland

被引：0

作者：

Suomi, Juuso ^{[1
]}

Saranko, Olli ^{[2
]}

Partanen, Antti-Ilari ^{[3
]}

Fortelius, Carl ^{[2
]}

Gonzales -Inca, Carlos ^{[1
]}

Kayhko, Jukka ^{[1
]}

机构：

[1] Univ Turku, Dept Geog & Geol, Sect Geog, TURUN YLIOPISTO, FI-20014 Turku, Finland

[2] Finnish Meteorol Inst, Meteorol Res, POB 503, FI-00101 Helsinki, Finland

[3] Finnish Meteorol Inst, Climate Syst Res, POB 503, FI-00101 Helsinki, Finland

来源：

URBAN CLIMATE | 2024年 / 53卷

基金：

芬兰科学院;

关键词：

Numerical weather prediction model; HARMONIE-AROME; Temperature modelling; Urban heat island; Land cover; Heatwave; LAND-COVER DATA; URBAN; ISLAND; PREDICTION; SIMULATION; QUALITY;

D O I：

10.1016/j.uclim.2024.101811

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Performance of meso-scale numerical weather prediction model HARMONIE-AROME was assessed for a summer-time heatwave in a high-latitude coastal city of Turku in SW Finland. Representativeness of the model's ECOCLIMAP-SG based physiographic land cover specification with a resolution of 750 m was assessed against the 20 m resolution CORINE Land Cover (CLC) dataset. Moreover, the modelled 2 m air temperatures were compared with temperature observations recorded at 74 sites of the local climate observation network. Correlation analysis between the model's physiographic data (PGD) and CLC shows a statistically significant (p <= 0.01) match between the datasets in 76% of the land cover types, indicating mainly a good representativeness of the HARMONIE-AROME's land cover parameterization in the study area. The cases of mismatch are mostly related to the differences in ECOCLIMAP-SG and CLC classification principles and/or resolution, and thus can not be considered to indicate poor representativeness of the ECOCLIMAP-SG classification in the area. The HARMONIE-AROME modelled temperatures were on average slightly higher than the observed temperatures, and the difference was largest for daily minimum temperatures. Heterogeneity of land cover and topography inside a 750 m grid cell was related to larger difference between the modelled and observed temperature.

引用

页数：23