Gas flux (EC1)

Eddy covariance flux measurements started in 2012. The mast (2 m high) is located about 100 m east of Arctic Station in a moist tundra site called Østerlien. It is a gentle south sloping area covered by low vegetation/dwarf shrubs. The system consist of a LICOR 7200 IRGA and Gill HS50 sonic anemometer. Data were logged at 10 Hz and fluxes processed on a 30 minutes basis using EddyPro software. The station is running West Greenland Time (UTC-3). This data-set holds data from 2012-2018. Two major gaps in the data are caused by instrument failures where instruments were shipped out for repair. A continuation of the flux measurements are found in the file: Gas flux EC1-Smart. At the same site (10 meter north of the eddy covariance mast) there is an automatic weather station; AWS2 (data from this mast are found under the sub-programme-groups: Meteorology, Soils, Snow)涡度协方差（eddy covariance）通量观测始于2012年。该观测架（高2米）位于北极站以东约100米处的湿润苔原站点Østerlien。该区域为平缓南坡地带，覆盖低矮植被与矮灌丛。观测系统由LICOR 7200红外气体分析仪（LICOR 7200 IRGA）与Gill HS50超声风速仪组成。数据以10 Hz的频率记录，通量数据采用EddyPro软件以30分钟为时段进行处理。该站点采用西格陵兰时间（UTC-3）。本数据集涵盖2012年至2018年的观测数据。数据集存在两处主要数据缺口，系仪器故障送修所致。该通量观测的后续数据集可于文件《Gas flux EC1-Smart》中获取。在同一站点内（涡度协方差观测架以北10米处）设有自动气象站AWS2；该观测架的数据可在子项目组“气象学、土壤学、积雪学”下查询。