Monitoring Greenhouse Gases from Space
Monitoring Greenhouse Gases from Space
复制标题
从太空监测温室气体
DOI：
10.3390/rs13142700
复制
发表时间：
2021-07-01
期刊：
影响因子：
5
通讯作者：
Chen, Huilin
中科院分区：
文献类型：
--
作者：
Boesch, Hartmut;Liu, Yi;Chen, Huilin
由于人类活动，大气中二氧化碳和甲烷的温室气体浓度增加，这是自前工业时代以来观测到的地表温度上升超过1摄氏度的主要驱动因素。在巴黎举行的2015年联合国气候变化会议上，大多数国家同意减少温室气体排放，以将全球地表温度的上升控制在1.5摄氏度以内。由于NASA的OCO-2和日本GOSAT任务等任务，对二氧化碳和甲烷的卫星遥感现在已经很好地建立了，这些任务使我们能够从太空建立大气温室气体浓度的长期记录。它们还让我们第一次看到了与人为排放有关的二氧化碳和甲烷的增强，这有助于为未来旨在为巴黎协定的全球评估提供监测和核查支助能力的特派团铺平道路。中国在全球碳预算中发挥着重要作用，因为它是人为碳排放的最大来源，也是几个重新造林项目导致碳固存增加的地区。在过去的10年里，中国启动了一系列碳减排项目，包括开发中国第一颗温室气体监测卫星TANSAT，并于2016年12月22日成功发射。在这里，我们总结了欧洲和中国团队在欧空局和科技部(MOST)的Dragon-4计划框架下开展的一个合作项目的结果，该项目旨在通过反演相互比较和地面验证来表征和评估Tansat任务的数据集，并将模式比较和地表通量反演方法应用于Tansat和其他二氧化碳任务，重点是中国。
The increase in atmospheric greenhouse gas concentrations of CO2 and CH4, due to human activities, is the main driver of the observed increase in surface temperature by more than 1 degrees C since the pre-industrial era. At the 2015 United Nations Climate Change Conference held in Paris, most nations agreed to reduce greenhouse gas emissions to limit the increase in global surface temperature to 1.5 degrees C. Satellite remote sensing of CO2 and CH4 is now well established thanks to missions such as NASA's OCO-2 and the Japanese GOSAT missions, which have allowed us to build a long-term record of atmospheric GHG concentrations from space. They also give us a first glimpse into CO2 and CH4 enhancements related to anthropogenic emission, which helps to pave the way towards the future missions aimed at a Monitoring & Verification Support (MVS) capacity for the global stock take of the Paris agreement. China plays an important role for the global carbon budget as the largest source of anthropogenic carbon emissions but also as a region of increased carbon sequestration as a result of several reforestation projects. Over the last 10 years, a series of projects on mitigation of carbon emission has been started in China, including the development of the first Chinese greenhouse gas monitoring satellite mission, TanSat, which was successfully launched on 22 December 2016. Here, we summarise the results of a collaborative project between European and Chinese teams under the framework of the Dragon-4 programme of ESA and the Ministry of Science and Technology (MOST) to characterize and evaluate the datasets from the TanSat mission by retrieval intercomparisons and ground-based validation and to apply model comparisons and surface flux inversion methods to TanSat and other CO2 missions, with a focus on China.