Weather forecast HARMONIE-AROME — pressure surfaces

The data includes the latest weather forecast data produced using the HARMONIE-AROME weather model produced by the Finnish Meteorological Institute for pressure surfaces. The material covers atmospheric quantities on standard pressure surfaces (1000, 925, 850, 700, 500.300 hPa) e.g. temperature, relative humidity, wind direction/speed/horizontal components and geopotential height. The Harmonie-AROME weather model is run four times a day (00, 06, 12 and 18 UTC), each with a forecast length of 66 hours. Harmony-AROME is a so-called limited-area model whose counting area covers the Scandinavian region, the Norwegian Sea and the Baltic region. The horizontal lattice used in the model is 2.5 km. The coordinate system used to calculate the model is in Lambert’s projection.本数据集收录由芬兰气象研究所（Finnish Meteorological Institute）基于HARMONIE-AROME气象模式生成的最新气压面天气预报数据。数据集覆盖标准气压层（1000、925、850、700、500、300百帕）上的各类大气参数，具体包括气温、相对湿度、风向/风速/水平风分量以及位势高度。HARMONIE-AROME气象模式每日执行四次预报启动（协调世界时00、06、12、18时），单次预报时效为66小时。该模式属于典型的有限区域模式，其计算覆盖范围涵盖斯堪的纳维亚半岛、挪威海与波罗的海区域。模式采用的水平格距为2.5千米，计算所使用的坐标系为兰伯特（Lambert）投影坐标系。