Lausanne, Switzerland: Long-term forest meteorological data from the Long-term Forest Ecosystem Research Programme (LWF), from 1996 onwards

High quality meteorological data are needed for long-term forest ecosystem research, particularly in the light of global change. The long-term data series published here comprises almost 20 years of measurements for two meteorological stations in Lausanne in Switzerland where one station is located within a natural mixed forest stand (LAB) with European beech (_Fagus sylvatica_; 160-170 yrs), European silver fir (_Abies alba_; 160-170 yrs) and Norway spruce (_Picea abies_; 160-170 yrs) as dominant tree species. A second station is situated in the very vicinity outside of the forest (field station, LAF). The meteorological time series are presented in hourly time resolution of air temperature, relative humidity, precipitation, photosynthetically active radiation (PAR) and wind speed. Lausanne is part of the Long-term Forest Ecosystem Research Programme (LWF) established and maintained by the Swiss Federal Research Institute WSL.

全球变化背景下，长期森林生态系统研究亟需高质量气象数据。本次发布的长期数据序列涵盖瑞士洛桑两座气象站近20年的观测数据：其中LAB站点设于一处天然混交林分中，优势树种为欧洲山毛榉（*Fagus sylvatica*，林龄160-170年）、欧洲冷杉（*Abies alba*，林龄160-170年）与挪威云杉（*Picea abies*，林龄160-170年）；另一站点设于林外紧邻区域（野外站点LAF）。本数据集提供的气象时间序列以小时为时间分辨率，包含气温、相对湿度、降水量、光合有效辐射（Photosynthetically Active Radiation, PAR）及风速等观测要素。洛桑站点隶属于瑞士联邦森林、雪与景观研究所（WSL）建立并维护的长期森林生态系统研究计划（Long-term Forest Ecosystem Research Programme, LWF）。