Evaluation of the contribution of new particle formation to cloud droplet in urban atmosphere

This data was measured at the Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences (39.98◦ N, 116.39◦ E) from May 25, 2017 to June 18, 2017. The number size distribution of particles in the size range from 10 to 550 nm (scanned range) were measured with time resolution of 5 minutes by a scanning mobility particle sizer (SMPS) used to calculated the particles number concentration. And the non-refractory chemical composition of PM1 is measured by an Aerosol Chemical Speciation Monitor (ACSM) used to calculate the hygroscopicity parameters of aerosol particles and analyse it's source. The wind speed and wind direction data were download from National Climate Data Center （https://www.ncdc.noaa.gov/）, from 25 May to 15 June 2017.本数据集的观测数据采集于中国科学院大气物理研究所（Institute of Atmospheric Physics, IAP），观测点位坐标为39.98°N、116.39°E，观测时段为2017年5月25日至2017年6月18日。研究人员采用扫描迁移率粒子粒径谱仪（scanning mobility particle sizer, SMPS），以5分钟的时间分辨率测量了扫描量程为10~550nm范围内的颗粒物数尺寸分布，用于计算颗粒物数浓度。同时借助气溶胶化学组分监测仪（Aerosol Chemical Speciation Monitor, ACSM）测定了PM1的非难熔化学成分，该设备可用于计算气溶胶颗粒的吸湿性参数并解析其来源。风速与风向数据下载自美国国家气候数据中心（National Climate Data Center, https://www.ncdc.noaa.gov/），对应时段为2017年5月25日至2017年6月15日。