Airborne Ice Nucleating Particle (INP) measurements in the Arctic during PAMARCMiP 2018

In the framework of the PAMARCMiP 2018 campaign airborne measurements were carried out by the Polar 5 research aircraft from March 23 to April 4 2018 in the vicinity of the Villum Research Station (Greenland, 81°36' N, 16°40' W). The main area of operation of the Polar 5 above the sea ice in the Arctic sea and the Fram Strait. Aerosol was sampled onto polycarbonate pore filters with the self-developed filter sampler HERA (High Volume Aerosol Sampler). Subsequently the offline analysis of INP was performed with the droplet freezing techniques LINA and INDA. Each sample is accompanied by a blank sample, which experienced the exact same treatment as the sample, but no airflow went through the filter.

在2018年PAMARCMiP活动框架下，Polar 5研究飞机于2018年3月23日至4月4日在维卢姆研究站（格陵兰岛，北纬81°36'，西经16°40'）附近区域进行了空中测量。Polar 5在北极海海冰上空的主要作业区域为北极海海冰及弗拉姆海峡。利用自主研发的HERA（高容量气溶胶采样器）将气溶胶样品采集于聚碳酸酯多孔过滤器上。随后，采用LINA和INDA的液滴冻结技术对气溶胶核（INP）进行了离线分析。每个样品均配有空白样品，该空白样品经历了与样品完全相同的处理过程，但未有任何气流通过过滤器。