青藏高原亚东大气粉尘理化特征数据集（2021）

数据集包括基本的温湿压风气象要素、黑碳浓度、散射系数、粒径谱数据和化学成分分析。自动气象站能够测量气温、相对湿度、气压、风向、风速和累计降水量。AE-33型黑碳仪（Aethalometer，以下简称AE-33）能够在线测量大气中TSP（总悬浮颗粒物）在370nm、470nm、520nm、590nm、660nm、880nm和950nm波段处的黑碳气溶胶浓度，使用的质量吸收截面分别为18.47、14.54、13.14、11.58、10.35、7.77和7.19 m2/g。其正式观测时段为2021年6月12日至2021年8月31日，时间分辨率为1分钟。表格数据已经过后续处理，为逐小时数据。积分浊度计（Integrating Nephelometer）能够在线测量大气中PM2.5在450nm、550nm和700nm波段处的散射系数。其正式观测时段为2021年6月12日至2021年8月31日，时间分辨率为10秒。表格数据已经过后续处理，为逐小时数据。空气动力学粒径谱仪（Aerodynamic Particle Sizer Spectrometer，以下简称APS）能够在线测量大气中0.5-20μm(空气动力学直径)粒径范围内颗粒物的数浓度粒径分布谱，共有50个粒径通道。其正式观测时段为2021年6月12日至2021年8月31日，时间分辨率为5分钟。表格数据已经过后续处理，为逐小时数据。扫描电迁移率粒径谱仪（SMPS）能够在线测量大气中13.6 - 514 nm （Stokes 直径）颗粒物粒径分布；TSI 3752型凝聚核粒子计数器（CPC）用于测量颗粒物数量浓度。其正式观测时段为2021年6月29日至2021年8月31日，时间分辨率为5分钟。表格数据已经过后续处理，为逐小时数据。使用国产中流量采样器采集了TSP粒径段的直径90毫米的石英滤膜、泡水处理过的石英滤膜和特氟龙滤膜，样品可用于元素碳、有机碳、水溶性离子和金属元素等化学成分分析。采样时段为2021年6月23日至2021年8月29日，于早上11:00开始采样，每次采样71小时。

The dataset encompasses basic meteorological elements (air temperature, relative humidity, atmospheric pressure, wind direction, wind speed), black carbon concentration, scattering coefficient, particle size spectrum data, and chemical composition analysis.
The automatic weather station can perform online measurements of air temperature, relative humidity, atmospheric pressure, wind direction, wind speed, and cumulative precipitation.
The AE-33 aethalometer (hereinafter referred to as AE-33) can perform online measurements of black carbon aerosol concentrations in atmospheric Total Suspended Particulates (TSP) at 370 nm, 470 nm, 520 nm, 590 nm, 660 nm, 880 nm, and 950 nm wavelengths, with corresponding mass absorption cross-sections of 18.47, 14.54, 13.14, 11.58, 10.35, 7.77, and 7.19 m²/g, respectively. Its official observation period ran from June 12, 2021 to August 31, 2021, with a temporal resolution of 1 minute. The tabular data has undergone post-processing and is hourly-averaged.
The integrating nephelometer can perform online measurements of scattering coefficients of atmospheric PM2.5 at 450 nm, 550 nm, and 700 nm wavelengths. Its official observation period ran from June 12, 2021 to August 31, 2021, with a temporal resolution of 10 seconds. The tabular data has undergone post-processing and is hourly-averaged.
The Aerodynamic Particle Sizer Spectrometer (hereinafter referred to as APS) can perform online measurements of number concentration particle size distribution spectra of atmospheric particulates within the aerodynamic diameter range of 0.5–20 μm, with a total of 50 particle size channels. Its official observation period ran from June 12, 2021 to August 31, 2021, with a temporal resolution of 5 minutes. The tabular data has undergone post-processing and is hourly-averaged.
The Scanning Mobility Particle Sizer (SMPS) can perform online measurements of particle size distributions of atmospheric particulates within the Stokes diameter range of 13.6–514 nm; the TSI 3752 Condensation Particle Counter (CPC) is used to measure the number concentration of atmospheric particulates. Its official observation period ran from June 29, 2021 to August 31, 2021, with a temporal resolution of 5 minutes. The tabular data has undergone post-processing and is hourly-averaged.
Domestic medium-flow samplers were used to collect 90 mm diameter quartz filters, water-soaked quartz filters, and Teflon filters for the TSP particle size fraction. The collected samples are suitable for chemical composition analyses including elemental carbon, organic carbon, water-soluble ions, and metal elements. The sampling campaign ran from June 23, 2021 to August 29, 2021, with each sampling event starting at 11:00 AM and lasting 71 hours.

搜集汇总

背景与挑战

背景概述

该数据集包含2021年6月至8月青藏高原亚东地区的大气粉尘理化特征数据，涵盖气象要素、黑碳浓度、散射系数、粒径谱和化学成分等多维度测量结果，时间分辨率为分钟至小时级，适用于大气环境研究。