报告人
同丹,清华大学地球系统科学系副教授,长期致力于大气污染物和温室气体排放定量表征、环境与气候影响的政策分析、能源环境经济综合评价模型模拟分析、碳中和与清洁空气协同治理等研究,第一作者成果多次发表在世界顶级期刊《自然》,《自然-气候变化》、《自然-可持续发展》等。2017年研究成果“全球国际贸易隐含的PM2.5跨界污染的健康影响”提名当年中国十大科学进展。2019年指出全球现有能源设施对1.5度温升目标造成严重威胁,该项研究入选全球最受公众关注的100项研究(排名16)。入选2019年《麻省理工科技评论》中国区“35岁以下科技创新35人”榜单,2021年度科睿唯安“高被引科学家”。
报告题目
气候变化对全球高比例风光系统极端电力短缺事件的影响:1980-2022
Climate change impacts on the extreme power shortage events of wind-solar supply systems worldwide during 1980–2022
报告摘要
Economic productivity depends on reliable access to electricity, but the extreme shortage events of variable wind-solar systems may be strongly affected by climate change. Here, hourly reanalysis climatological data are leveraged to examine historical trends in defined extreme shortage events worldwide. We find uptrends in extreme shortage events regardless of their frequency, duration, and intensity since 1980. For instance, duration of extreme low-reliability events worldwide has increased by 4.1 hours (0.392 hours per year on average) between 1980–2000 and 2001–2022. However, such ascending trends are unevenly distributed worldwide, with a greater variability in low- and middle-latitude developing countries. This uptrend in extreme shortage events is driven by extremely low wind speed and solar radiation, particularly compound wind and solar drought, which however are strongly disproportionated. Only average 12.5% change in compound extremely low wind speed and solar radiation events may give rise to over 30% variability in extreme shortage events, despite a mere average 1.0% change in average wind speed and solar radiation. Our findings underline that wind-solar systems will probably suffer from weakened power security if such uptrends persist in a warmer future.
参与方式
时间:
2024年07月24日晚上8:00(北京时间)
腾讯会议 ID:
636 9629 8378
主持人
马韶君
天津大学讲师,研究方向为跨文化与城市绿色空间、区域与城市研究
马韶君,天津大学讲师,研究方向为跨文化与城市绿色空间、区域与城市研究,主持省部级科研项目2项,成果6篇入选高被引论文、2篇入选热点论文,1篇连续10轮被引达到本学科前1%,获得省部级教学成果奖、科学技术奖、智库成果奖等。
后续论坛预告
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