中国第10次北极科学考察(2019年)海水挥发性卤代烃分析数据

挥发性卤代烃（VHC，Volatile halocarbons）是大气中一类重要的痕量温室气体，它们在大气中发生光化学降解，释放出卤原子，而卤原子催化破坏大气平流层的臭氧，不仅直接造成臭氧减少，同时参与多种大气化学反应，改变着其它温室气体的大气浓度。
本数据为中国第10次北极科学考察（2019年）海水挥发性卤代烃分析数据，对了解北极及邻区海域卤素的循环过程，以及对在区域和全球尺度上评价海洋挥发性卤代烃对全球环境、气候的影响具有重要的意义。
1.测量仪器
⚫ 仪器名称：气相色谱仪
⚫ 仪器型号：岛津，GC2030
⚫ 标定方法：使用O2Si公司配制的纯度大于99%的VHCs液体标准标定仪器
2.观测方法和所获观测资料
用配有ECD检测器的岛津GC2030气相色谱仪测定海水挥发性卤代烃样品。

Volatile halocarbons (VHCs) are an important category of trace greenhouse gases in the atmosphere. They undergo photochemical degradation in the atmosphere, releasing halogen atoms. These halogen atoms catalytically destroy stratospheric ozone, directly leading to ozone depletion, and also participate in various atmospheric chemical reactions, altering the atmospheric concentrations of other greenhouse gases.

This dataset presents analytical data of volatile halocarbons in seawater collected during China's 10th Arctic Scientific Expedition (2019). It is of great significance for comprehending the halogen cycling processes in the Arctic and its adjacent marine regions, as well as assessing the impacts of marine volatile halocarbons on global environment and climate at both regional and global scales.

1. Measuring Instruments
⚫ Instrument Name: Gas Chromatograph
⚫ Instrument Model: Shimadzu GC2030
⚫ Calibration Method: The instrument was calibrated using liquid VHC standards with a purity of over 99%, prepared by O2Si Corporation.

2. Observation Methods and Acquired Observation Data
Seawater volatile halocarbon samples were analyzed using a Shimadzu GC2030 gas chromatograph equipped with an ECD detector.

搜集汇总

背景与挑战

背景概述

该数据集是中国第10次北极科学考察（2019年）的海水挥发性卤代烃分析数据，属于海洋化学领域，重点关注北极海域。数据通过'向阳红01'科学考察船采集，使用岛津GC2030气相色谱仪测定，旨在研究挥发性卤代烃对臭氧和全球气候的影响，为北极卤素循环评估提供支持，共享方式为条件共享。