Monitoring of nitrogen oxides at Svalbard: measurements in Adventdalen

Main snowmobile route to the east coast of Spitzbergen from the Longyearbyen goes along the road through the valley Adventdalen, and therefore there is daily snowmobile traffic in spring season lasting from the end of March to the beginning of May. The chemiluminescence NO/NO2/NOx Analyzer (model T200) was installed in the UNIS CO2 lab in Adventdalen for the period from 23.03.2017 to 15.05.2017. The sensor was calibrated against span and null concentrations weekly, and the data was scaled to avoid zero drift. Current dataset represents concentration of NO, NO2 and NOx in the air during the spring snowmobile season at Svalbard. One can compare the concentration with other remote places in the Arctic during night-time with low snowmobile traffic. The influence of emissions from snowmobiles on the background concentration of NOx in Adventdalen has been studied together with the meteorological data from Adventdalen.

从朗伊尔城（Longyearbyen）前往斯匹次卑尔根（Spitzbergen）东海岸的核心雪地摩托通行路线，需沿阿德文特谷（Adventdalen）的道路行进，因此在每年3月底至5月初的春季时段，该路线每日均有雪地摩托往来通行。2017年3月23日至2017年5月15日期间，一台化学发光式NO/NO₂/氮氧化物（NOₓ）分析仪（型号T200）部署于阿德文特谷的UNIS CO₂实验室中。该传感器每周均会依据跨度浓度与零点浓度完成校准，并对观测数据进行归一化处理以消除零点漂移。本数据集记录了斯瓦尔巴群岛（Svalbard）春季雪地摩托通行季的大气NO、NO₂及NOₓ浓度数据，可将其与北极其他偏远地区在雪地摩托通行量较低的夜间时段的大气污染物浓度开展对比分析。本数据集已结合阿德文特谷的气象数据，针对雪地摩托排放对该区域背景NOₓ浓度的影响展开了相关研究。