藏东南垂直剖面大气甲烷浓度数据

藏东南垂直剖面大气甲烷数据主要包括不同高度层次上大气中甲烷浓度的测量值。甲烷是温室气体之一，对全球气候变化具有显著影响。通过垂直剖面数据，可以了解甲烷在大气中的垂直分布和变化规律，揭示其在不同高度层次的浓度特征，从而为研究甲烷的来源、扩散、沉降及其对气候的影响提供数据支持。本数据来源于第二次青藏科考中的“极目一号”浮空艇平台，浮空艇搭载多种大气观测设备，进行大气组分的原位观测。分别在2019年4月23日、28日、29日和30日和2022年1月16日、17日、18日、19日、21日、22日、23日和24日于藏东南鲁朗镇（东经94°728'，北纬29°928'，海拔3326m）利用浮空艇平台搭载甲烷气体分析仪采集垂直剖面的甲烷浓度数据。数据处理方法包括对甲烷浓度数据进行滤波处理和误差修正，保障数据的科学性和可靠性；为确保数据的准确性，甲烷气体分析仪在野外观测前做数据的校准。该数据在气候变化研究、温室气体排放评估和大气污染监测方面具有重要应用。甲烷作为强效的温室气体，其对气候变化的贡献不可忽视。通过对垂直剖面甲烷数据的分析，研究人员可以更好地理解甲烷的分布规律、来源及其在大气中的生命周期。

The vertical profile atmospheric methane dataset from the southeastern Tibetan Plateau primarily contains measured methane concentrations in the atmosphere across different altitude layers. Methane is a type of greenhouse gas that exerts a significant influence on global climate change. Analyzing these vertical profile data enables the elucidation of the vertical distribution and variation rules of methane in the atmosphere, as well as the concentration characteristics of methane at various altitude layers, thus providing data support for research on methane sources, diffusion, deposition, and their impacts on climate. This dataset is collected via the "Jimu No.1" airship platform during the Second Tibetan Plateau Scientific Expedition. The airship was equipped with multiple atmospheric observation instruments to conduct in-situ measurements of atmospheric components. Vertical profile methane concentration data were acquired using a methane gas analyzer mounted on the airship platform in Lulang Town, southeastern Tibetan Plateau (east longitude 94°728', north latitude 29°928', elevation 3326 m) on April 23, 28, 29, and 30, 2019, as well as January 16, 17, 18, 19, 21, 22, 23, and 24, 2022. Data processing procedures include filtering and error correction for methane concentration data to guarantee the scientific validity and reliability of the dataset. To ensure data accuracy, the methane gas analyzer underwent calibration prior to field observations. This dataset holds important applications in climate change research, greenhouse gas emission assessment, and air pollution monitoring. As a potent greenhouse gas, methane's contribution to climate change is substantial. Through analysis of the vertical profile methane data, researchers can gain a deeper understanding of the distribution patterns, sources, and atmospheric lifetime of methane.

搜集汇总

背景与挑战

背景概述

该数据集提供了藏东南鲁朗镇在2019年4月和2022年1月通过浮空艇平台采集的垂直剖面大气甲烷浓度数据，旨在揭示甲烷在大气中的垂直分布规律，支持气候变化研究和温室气体排放评估。数据具有月时间分辨率和10米至100米的空间分辨率，以Excel格式存储，适用于分析甲烷的来源、扩散及其对全球气候的影响。