青藏高原及周边碳质气溶胶数据集

本数据集包括青藏高原及其周边共5个采样点碳质气溶胶包括有机碳和黑碳的浓度和空间分布信息。本数据包含的黑碳和有机碳数据采用膜采样，滤膜为石英滤膜，采样器为大流量采样器，切割粒径为总悬浮颗粒物（TSP），每个滤膜采样周期为24h或48h。采用热光法测定其有机碳和黑碳含量，方法检出限分别为0.43和0.12 ug/cm2。此外，还计算了黑碳的吸光参数（MAC）。该数据集将作为青藏高原及其周边区域碳质气溶胶污染状况及背景值的参考数据集。This dataset contains concentration and spatial distribution data of carbonaceous aerosols, including organic carbon and black carbon, from a total of 5 sampling sites on the Qinghai-Tibet Plateau and its surrounding areas. The black carbon and organic carbon data were collected via membrane sampling using quartz filters and high-volume samplers, with the samplers configured with a total suspended particulate matter (TSP) particle size cut; each filter had a sampling duration of 24 or 48 hours. The contents of organic carbon and black carbon were measured using the thermo-optical method, with method detection limits of 0.43 and 0.12 μg/cm², respectively. Additionally, the mass absorption cross-section (MAC) of black carbon was calculated. This dataset will serve as a reference dataset for the pollution status and background concentrations of carbonaceous aerosols in the Qinghai-Tibet Plateau and its surrounding regions.

搜集汇总

背景与挑战

背景概述

该数据集提供了2013年至2019年青藏高原及周边地区碳质气溶胶中有机碳（OC）和元素碳（EC）的浓度和空间分布数据，使用热光碳分析仪测量，检测限分别为0.43和0.12 ug/cm2，并包含EC的MAC计算。数据集以月时间分辨率和10km至100km空间分辨率覆盖东经103.9至西经67.0、南纬24.9至北纬39.8的地理范围，旨在为区域碳质气溶胶污染和背景值研究提供信息。