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20250118.html
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<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" type="text/css" href="wechat.css">
</head>
<body>
<section class="header">
<h1>大气环境遥感论文速递</h1>
<section class="date">2025/01/18</section>
</section>
<section id="papers-container"><section class="paper-card">
<section class="paper-title">Global seasonal urban, industrial, and background NO2 estimated from TROPOMI satellite observations</section>
<section class="paper-authors">Vitali Fioletov, Chris A. McLinden, Debora Griffin, Xiaoyi Zhao, Henk Eskes</section>
<section class="paper-journal">Atmospheric Chemistry and Physics</section>
<section class="paper-doi"><a href="https://doi.org/10.5194/acp-25-575-2025" target="_blank">https://doi.org/10.5194/acp-25-575-2025</a></section>
<section class="topic-tags">
<span class="topic-tag">二氧化氮</span>
<span class="topic-tag">卫星观测</span>
<span class="topic-tag">排放清单</span>
</section>
<section class="abstract-content">《利用TROPOMI卫星观测估算的全球季节性城市、工业和背景二氧化氮》这篇论文,使用<b>TROPOMI</b>卫星观测数据研究全球主要城市的<b>二氧化氮</b>(NO2)排放。研究将对流层NO2数据分解为背景NO2、城市NO2和工业点源NO2三部分,分别进行分析。结果表明,中东地区的城市人均NO2排放量最大,印度和南部非洲最小。研究还发现,中国的周末城市NO2排放量与工作日差异不显著。该研究使用了统计模型和气象再分析数据,结合人口密度、海拔和工业点源数据,对全球261个主要城市的NO2排放进行了估算。这项研究为城市空气质量管理和<b>排放清单</b>的编制提供了重要参考。</section>
</section>
<section class="paper-card">
<section class="paper-title">Divergent impacts of soil desiccation on atmospheric water vapor–temperature responses regulated by evapotranspiration</section>
<section class="paper-authors">Ruonan Wang, Xingwang Fan, Yongwei Liu, Xiaosong Zhao, Rong Wang, Yuanbo Liu</section>
<section class="paper-journal">Environmental Research Letters</section>
<section class="paper-doi"><a href="https://doi.org/10.1088/1748-9326/ada6df" target="_blank">https://doi.org/10.1088/1748-9326/ada6df</a></section>
<section class="topic-tags">
<span class="topic-tag">大气水汽</span>
<span class="topic-tag">土壤干燥</span>
<span class="topic-tag">蒸散发</span>
</section>
<section class="abstract-content">这篇题为《土壤干燥对蒸散发调节的大气水汽-温度响应的差异影响》的论文,研究了气候变暖背景下<b>大气水汽</b>对气温上升的响应,并特别关注<b>土壤干燥化</b>的影响。研究者利用欧洲中期天气预报中心再分析资料集,分析了1982年至2020年间大气水汽和气温的变化趋势,并发现全球约四分之三的陆地地区大气水汽和气温同时上升,而约五分之一的地区大气水汽随气温上升而下降。这种差异与<b>蒸散发</b>和土壤干燥化有关,其中土壤干燥化在不同地区产生不同的影响。该研究揭示了气候变化对大气水汽的复杂影响,并强调了区域差异的重要性。</section>
</section>
<section class="paper-card">
<section class="paper-title">Linking Radiative‐Advective Equilibrium Regime Transition to Arctic Amplification</section>
<section class="paper-authors">Yu‐Chiao Liang, Osamu Miyawaki, Tiffany A. Shaw, Ivan Mitevski, Lorenzo M. Polvani, Yen‐Ting Hwang</section>
<section class="paper-journal">Geophysical Research Letters</section>
<section class="paper-doi"><a href="https://doi.org/10.1029/2024GL113417" target="_blank">https://doi.org/10.1029/2024GL113417</a></section>
<section class="topic-tags">
<span class="topic-tag">北极放大</span>
<span class="topic-tag">气候模型</span>
<span class="topic-tag">温室气体</span>
</section>
<section class="abstract-content">本文《辐射-<b>平流平衡</b>状态转变与<b>北极放大</b>效应的关联》探讨了人为温室气体排放导致的<b>北极放大</b>效应以及辐射-平流平衡(RAE)状态的转变与<b>北极放大</b>效应之间的关系。研究利用不同二氧化碳浓度的气候模型模拟,发现二氧化碳浓度降低时,高纬度地区RAE状态占主导地位,与更强的<b>北极放大</b>效应相关。而二氧化碳浓度增加时,RAE状态向非RAE状态转变,对应较弱的<b>北极放大</b>效应。研究还分析了垂直递减率和海冰过程的作用。研究利用气候模型,结合大气成分、温度和海冰数据,解释了<b>北极放大</b>效应的机制,对未来气候变化预测具有重要意义。</section>
</section>
<section class="paper-card">
<section class="paper-title">High-resolution analyses of concentrations and sizes of refractory black carbon particles deposited in northwestern Greenland over the past 350 years – Part 2: Seasonal and temporal trends in refractory black carbon originated from fossil fuel combustion and biomass burning</section>
<section class="paper-authors">Kumiko Goto-Azuma, Yoshimi Ogawa-Tsukagawa, Kaori Fukuda, Koji Fujita, Motohiro Hirabayashi, Remi Dallmayr, Jun Ogata, Nobuhiro Moteki, Tatsuhiro Mori, Sho Ohata, Yutaka Kondo, Makoto Koike, Sumito Matoba, Moe Kadota, Akane Tsushima, Naoko Nagatsuka, Teruo Aoki</section>
<section class="paper-journal">Atmospheric Chemistry and Physics</section>
<section class="paper-doi"><a href="https://doi.org/10.5194/acp-25-657-2025" target="_blank">https://doi.org/10.5194/acp-25-657-2025</a></section>
<section class="topic-tags">
<span class="topic-tag">难熔黑碳</span>
<span class="topic-tag">冰芯分析</span>
<span class="topic-tag">气候模型</span>
</section>
<section class="abstract-content">《过去350年中沉积在格陵兰西北部的难熔黑碳颗粒的浓度和大小的高分辨率分析——第二部分:源于化石燃料燃烧和生物质燃烧的难熔黑碳的季节和时间趋势》这篇论文,研究了格陵兰西北部<b>冰芯</b>中过去350年<b>难熔黑碳</b>(rBC)的浓度和粒径变化。通过分析冰芯中rBC的时空变化趋势,研究者发现工业革命以来,人为排放的rBC导致rBC浓度增加,且粒径也比生物质燃烧产生的rBC更大。研究结果还显示,人为来源的rBC导致rBC的年度浓度峰值从夏季转移到冬季和早春。直到21世纪初,生物质燃烧产生的rBC才开始增加。这项研究为验证气溶胶和<b>气候模型</b>提供了关键数据,对于改进气候和环境模型预测具有重要意义。</section>
</section>
<section class="paper-card">
<section class="paper-title">A Bayesian technique for quantifying methane emissions using vehicle-mounted sensors with a Gaussian plume model</section>
<section class="paper-authors">Daniel C. Blackmore, Jean-Pierre Hickey, Augustine Wigle, Kirk Osadetz, Kyle J. Daun</section>
<section class="paper-journal">Atmospheric Environment</section>
<section class="paper-doi"><a href="https://doi.org/10.1016/j.atmosenv.2024.121002" target="_blank">https://doi.org/10.1016/j.atmosenv.2024.121002</a></section>
<section class="topic-tags">
<span class="topic-tag">甲烷排放</span>
<span class="topic-tag">贝叶斯方法</span>
<span class="topic-tag">高斯羽流模型</span>
</section>
<section class="abstract-content">本文《使用车载传感器和<b>高斯羽流模型</b>量化甲烷排放的贝叶斯技术》提出了一种基于贝叶斯方法的甲烷排放量估算技术。该技术结合了车载传感器测量数据、<b>高斯羽流模型</b>和风速数据,利用计算流体动力学模拟来量化模型误差,并通过贝叶斯推断将先验信息和模型误差融入到排放量估计中。研究使用带有TDLAS传感器的卡车对受控释放的甲烷进行了测量,并通过比较推断出的排放量与真实排放量来评估该技术的有效性。该方法可以有效地描述甲烷排放量的不确定性。研究提供了一种精确的甲烷排放量估算方法,对环境监管和气候变化建模具有重要意义。</section>
</section>
<section class="paper-card">
<section class="paper-title">Halogen Emissions from Coal-Fired Power Plants in China: Evolutions, Driving Forces, and Future Trends</section>
<section class="paper-authors">Zhiqiang Fu, Zehui Yao, Junqi Yang, Jiangyu Cui, Xinchen Liao, Xiaoxuan Bai, Hezhong Tian</section>
<section class="paper-journal">Environmental Science & Technology</section>
<section class="paper-doi"><a href="https://doi.org/10.1021/acs.est.4c12078" target="_blank">https://doi.org/10.1021/acs.est.4c12078</a></section>
<section class="topic-tags">
<span class="topic-tag">卤素排放</span>
<span class="topic-tag">燃煤电厂</span>
<span class="topic-tag">大气环境</span>
</section>
<section class="abstract-content">《中国燃煤电厂卤素排放:演变、驱动因素和未来趋势》这篇论文研究了中国燃煤电厂排放的<b>卤素</b>(氟、氯、溴、碘)的时空变化、驱动因素和未来趋势。研究使用了多源数据和质量平衡法,建立了详细的卤素排放清单。结果表明,2018年至2022年燃煤电厂卤素排放量波动,2022年达到峰值。研究指出燃煤消费量的增加是排放量增长的主要驱动因素,预计在空气污染控制和气候目标下,卤素排放将在2030年前达到峰值,到2050年接近消除。这项研究对了解燃煤电厂对<b>大气环境</b>的影响,和制定污染控制策略具有重要意义。</section>
</section>
<section class="paper-card">
<section class="paper-title">Tropical upper-tropospheric trends in ozone and carbon monoxide (2005–2020): observational and model results</section>
<section class="paper-authors">Lucien Froidevaux, Douglas E. Kinnison, Benjamin Gaubert, Michael J. Schwartz, Nathaniel J. Livesey, William G. Read, Charles G. Bardeen, Jerry R. Ziemke, Ryan A. Fuller</section>
<section class="paper-journal">Atmospheric Chemistry and Physics</section>
<section class="paper-doi"><a href="https://doi.org/10.5194/acp-25-597-2025" target="_blank">https://doi.org/10.5194/acp-25-597-2025</a></section>
<section class="topic-tags">
<span class="topic-tag">臭氧</span>
<span class="topic-tag">一氧化碳</span>
<span class="topic-tag">对流层</span>
</section>
<section class="abstract-content">《热带上对流层臭氧和一氧化碳的趋势(2005-2020年):观测与模型结果》这篇论文,分析了2005年至2020年<b>热带上对流层</b>(10-15公里高度)<b>臭氧</b>和<b>一氧化碳</b>的变化趋势。研究者使用了Aura卫星搭载的微波临边探测器(MLS)的观测数据,并与多个大气化学模式(WACCM和CAM-chem)的模拟结果进行了比较。结果表明,观测到的上对流层臭氧呈现增加趋势,而一氧化碳的趋势则略有下降,模式模拟结果与观测结果总体一致。这项研究对于理解热带地区大气成分变化及其驱动机制具有重要意义,也为国际上对流层演变的评估提供了数据支持。</section>
</section>
<section class="paper-card">
<section class="paper-title">Urbanization Intensifies Heavy Hourly Rainfall Preconditioned by Heatwaves</section>
<section class="paper-authors">Zifeng Deng, Gabriele Villarini, Zhaoli Wang, Xushu Wu, Zhaoyang Zeng, Chengguang Lai</section>
<section class="paper-journal">Journal of Geophysical Research: Atmospheres</section>
<section class="paper-doi"><a href="https://doi.org/10.1029/2024JD041184" target="_blank">https://doi.org/10.1029/2024JD041184</a></section>
<section class="topic-tags">
<span class="topic-tag">城市化</span>
<span class="topic-tag">极端降雨</span>
<span class="topic-tag">热浪</span>
</section>
<section class="abstract-content">本文《<b>城市化</b>加剧了热浪预处理的强<b>降雨</b>》研究了<b>城市化</b>对热浪预处理强<b>降雨</b>的影响。通过珠江三角洲地区的观测数据和数值模拟,分析了<b>城市化</b>对该复合事件发生概率、强度和日变化的影响。结果表明,城市地区此类<b>降雨</b>事件发生概率和强度更高。研究还表明,热浪预处理增强了<b>城市化</b>对大气的影响,为对流提供了不稳定环境。研究强调了理解<b>城市化</b>对预处理事件影响的重要性。该研究利用观测和模拟数据,揭示了<b>城市化</b>对极端天气的影响,对城市水循环研究和灾害预防有重要的参考价值。</section>
</section>
<section class="paper-card">
<section class="paper-title">The active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compounds</section>
<section class="paper-authors">Yi Jiao, Magnus Kramshøj, Cleo L. Davie-Martin, Bo Elberling, Riikka Rinnan</section>
<section class="paper-journal">Communications Earth & Environment</section>
<section class="paper-doi"><a href="https://doi.org/10.1038/s43247-025-02007-8" target="_blank">https://doi.org/10.1038/s43247-025-02007-8</a></section>
<section class="topic-tags">
<span class="topic-tag">永久冻土</span>
<span class="topic-tag">挥发性有机物</span>
<span class="topic-tag">土壤-大气交换</span>
</section>
<section class="abstract-content">本文《格陵兰<b>永久冻土</b>活动层土壤可作为重要的<b>挥发性有机化合物</b>汇》研究了格陵兰岛<b>永久冻土</b>活动层土壤对<b>挥发性有机化合物</b>(VOCs)的吸收作用。研究发现,尽管土壤理化性质不同,但活动层土壤可以作为VOCs的汇,减缓<b>永久冻土</b>融化造成的VOCs净排放。上层活动层土壤的吸收能力相对较高,土壤湿度、有机质和微生物生物量碳是影响吸收速率的主要因素。研究还计算了几种化合物的吸收系数。该研究对理解<b>永久冻土</b>融化对大气成分的影响具有重要意义,也为未来的模型开发提供数据。</section>
</section>
<section class="paper-card">
<section class="paper-title">Data supporting the North Atlantic Climate System Integrated Study (ACSIS) programme, including atmospheric composition; oceanographic and sea-ice observations (2016–2022); and output from ocean, atmosphere, land, and sea-ice models (1950–2050)</section>
<section class="paper-authors">Alex T. Archibald, Bablu Sinha, Maria R. Russo, Emily Matthews, Freya A. Squires, N. Luke Abraham, Stephane J.-B. Bauguitte, Thomas J. Bannan, Thomas G. Bell, David Berry, Lucy J. Carpenter, Hugh Coe, Andrew Coward, Peter Edwards, Daniel Feltham, Dwayne Heard, Jim Hopkins, James Keeble, Elizabeth C. Kent, Brian A. King, Isobel R. Lawrence, James Lee, Claire R. Macintosh, Alex Megann, Bengamin I. Moat, Katie Read, Chris Reed, Malcolm J. Roberts, Reinhard Schiemann, David Schroeder, Timothy J. Smyth, Loren Temple, Navaneeth Thamban, Lisa Whalley, Simon Williams, Huihui Wu, Mingxi Yang</section>
<section class="paper-journal">Earth System Science Data</section>
<section class="paper-doi"><a href="https://doi.org/10.5194/essd-17-135-2025" target="_blank">https://doi.org/10.5194/essd-17-135-2025</a></section>
<section class="topic-tags">
<span class="topic-tag">大气成分</span>
<span class="topic-tag">海冰</span>
<span class="topic-tag">温室气体</span>
</section>
<section class="abstract-content">《支持北大西洋气候系统综合研究(ACSIS)计划的数据,包括大气成分;海洋学和海冰观测(2016-2022);以及海洋、大气、陆地和海冰模型的输出(1950-2050)》这篇论文介绍了北大西洋气候系统综合研究(ACSIS)项目产生的数据集。这些数据涵盖了<b>北大西洋</b>地区的大气成分、海洋和<b>海冰</b>。文章重点介绍了通过飞机和地面站观测得到的大气成分数据,包括温室气体、<b>臭氧</b>、气溶胶和挥发性有机化合物等,以及利用UKESM1模型进行的大气成分模拟结果。这些数据可用于气候变化和<b>大气成分</b>研究。</section>
</section>
<section class="paper-card">
<section class="paper-title">Incorporating climate data with machine learning can improve rice phenology estimation</section>
<section class="paper-authors">Yiqing Liu, Weihang Liu, Tao Ye, Shuo Chen, Xuehong Chen, Zitong Li, Ning Zhan, Ran Sun</section>
<section class="paper-journal">Environmental Research Letters</section>
<section class="paper-doi"><a href="https://doi.org/10.1088/1748-9326/ada56e" target="_blank">https://doi.org/10.1088/1748-9326/ada56e</a></section>
<section class="topic-tags">
<span class="topic-tag">水稻物候</span>
<span class="topic-tag">气候数据</span>
<span class="topic-tag">机器学习</span>
</section>
<section class="abstract-content">该论文题为《将气候数据与机器学习相结合可以改进水稻物候估算》,研究了如何利用<b>气候数据</b>和<b>机器学习</b>来提高<b>水稻物候</b>估算的精度。研究者利用卫星遥感数据结合气温和降水等气候数据,构建了一个基于随机森林的混合模型。结果表明,该混合模型显著提高了水稻物候事件(如播种期、成熟期)预测的准确性,误差减少了60%以上,并且温度指标对精度提升贡献最大。这表明,结合气候数据可以更准确地监测和预测农作物生长情况。这项研究不仅为农业管理和粮食生产提供了新的方法,也揭示了气候变化对农作物物候的影响。</section>
</section>
<section class="paper-card">
<section class="paper-title">Influence of winter Saharan dust on equatorial Atlantic variability</section>
<section class="paper-authors">Ignasi Vallès-Casanova, Ori Adam, Marta Martín Rey</section>
<section class="paper-journal">Communications Earth & Environment</section>
<section class="paper-doi"><a href="https://doi.org/10.1038/s43247-024-01926-2" target="_blank">https://doi.org/10.1038/s43247-024-01926-2</a></section>
<section class="topic-tags">
<span class="topic-tag">撒哈拉沙尘</span>
<span class="topic-tag">海表温度</span>
<span class="topic-tag">气候变率</span>
</section>
<section class="abstract-content">本文《冬季<b>撒哈拉</b>尘埃对赤道大西洋变率的影响》研究了冬季<b>撒哈拉</b>尘埃对赤道大西洋海表温度变化的影响。研究利用观测数据和再分析数据,揭示了<b>撒哈拉</b>尘埃异常对赤道大西洋海表温度的复杂非单调响应。研究表明,<b>撒哈拉</b>尘埃的增加导致低层大气增温和大气稳定度增加,引起西北非沿岸海表温度升高,并最终导致赤道地区降温。该研究表明,冬季<b>撒哈拉</b>尘埃是赤道大西洋变率的重要因素。研究利用遥感数据对<b>撒哈拉</b>沙尘及其对气候的影响进行了研究,对理解气候系统和气象变化具有参考价值。</section>
</section>
<section class="paper-card">
<section class="paper-title">Regional Hotspots of Change in Northern High Latitudes Informed by Observations From Space</section>
<section class="paper-authors">Jennifer D. Watts, Stefano Potter, Brendan M. Rogers, Anna‐Maria Virkkala, Greg Fiske, Kyle A. Arndt, Arden Burrell, Kevin Butler, Bob Gerlt, John Grayson, Tatiana A. Shestakova, Jinyang Du, Youngwook Kim, Frans‐Jan W. Parmentier, Susan M. Natali</section>
<section class="paper-journal">Geophysical Research Letters</section>
<section class="paper-doi"><a href="https://doi.org/10.1029/2023GL108081" target="_blank">https://doi.org/10.1029/2023GL108081</a></section>
<section class="topic-tags">
<span class="topic-tag">遥感</span>
<span class="topic-tag">气候变化</span>
<span class="topic-tag">生态系统</span>
</section>
<section class="abstract-content">本文题为《<b>空间观测</b>揭示的北高纬地区变化的热点区域》。该研究利用<b>遥感</b>和气候再分析数据,分析了西伯利亚、格陵兰部分地区、阿拉斯加和加拿大西部的生态系统变化。研究采用了非参数趋势检测和Getis-Ord Gi*空间热点评估方法。结果显示,这些区域普遍存在显著的<b>升温</b>趋势,蒸汽压亏缺增加,降水和土壤水分变化复杂。植被绿化和褐化现象广泛存在,尤其秋季北方森林带褐化明显。多元热点分析表明,西伯利亚生态区在热力、水分和植被状况方面同步发生了显著变化。研究强调,仅依赖区域趋势而忽略局部评估会导致对高纬度变化的理解不完整。该研究利用卫星遥感数据分析了大气温度、湿度和植被等要素的变化,对高纬度地区的环境变化研究具有重要意义。</section>
</section>
<section class="paper-card">
<section class="paper-title">Accelerated River Mobility Linked to Water Discharge Variability</section>
<section class="paper-authors">Anya Leenman, Evan Greenberg, Simon Moulds, Michel Wortmann, Louise Slater, Vamsi Ganti</section>
<section class="paper-journal">Geophysical Research Letters</section>
<section class="paper-doi"><a href="https://doi.org/10.1029/2024GL112899" target="_blank">https://doi.org/10.1029/2024GL112899</a></section>
<section class="topic-tags">
<span class="topic-tag">河流迁移</span>
<span class="topic-tag">水流量</span>
<span class="topic-tag">卫星观测</span>
</section>
<section class="abstract-content">《加速河流迁移与水流量变异性相关》这篇论文研究了<b>河流迁移率</b>与<b>水流量</b>变化之间的关系。研究者利用<b>Landsat</b>卫星影像估算全球48条河流的迁移率,并结合多年的水文数据进行分析。结果表明,河流迁移率与日尺度、年内尺度和年际尺度的水流量变化显著相关,水流量变化越大,河流迁移率越快。这表明,气候变化导致的水文极端事件可能加速未来的河流迁移。研究强调了水流量变异性在河流形态演变中的重要作用。</section>
</section>
<section class="paper-card">
<section class="paper-title">Comparative analysis of methods for seasonal particulate organic nitrate estimation in urban areas</section>
<section class="paper-authors">Wenfei Zhu, Jialin Shi, Song Guo, Qinghong Wang, Jun Chen, Shengrong Lou, Min Hu</section>
<section class="paper-journal">npj Climate and Atmospheric Science</section>
<section class="paper-doi"><a href="https://doi.org/10.1038/s41612-025-00904-5" target="_blank">https://doi.org/10.1038/s41612-025-00904-5</a></section>
<section class="topic-tags">
<span class="topic-tag">有机硝酸盐</span>
<span class="topic-tag">空气质量</span>
<span class="topic-tag">大气成分</span>
</section>
<section class="abstract-content">本文《城市地区季节性<b>颗粒物有机硝酸盐</b>估算方法的比较分析》研究了高NOx和氧化条件下,准确估算<b>颗粒物有机硝酸盐</b>的几种方法。研究比较了NOx+比率法、无约束正矩阵分解(PMF)和多线性引擎2(ME2)方法,以估算上海不同季节的<b>颗粒物有机硝酸盐</b>。研究结果表明,NOx+比率法报告的有机硝酸盐含量较高,通过优化季节性参数减少了不同方法的差异,提高了估算精度。该研究对快速准确估算城市地区不同季节的有机硝酸盐具有重要意义,对大气污染控制研究具有一定的指导作用。</section>
</section>
<section class="paper-card">
<section class="paper-title">To what extent does the CO2 diurnal cycle impact flux estimates derived from global and regional inversions?</section>
<section class="paper-authors">Saqr Munassar, Christian Rödenbeck, Michał Gałkowski, Frank-Thomas Koch, Kai U. Totsche, Santiago Botía, Christoph Gerbig</section>
<section class="paper-journal">Atmospheric Chemistry and Physics</section>
<section class="paper-doi"><a href="https://doi.org/10.5194/acp-25-639-2025" target="_blank">https://doi.org/10.5194/acp-25-639-2025</a></section>
<section class="topic-tags">
<span class="topic-tag">二氧化碳</span>
<span class="topic-tag">碳通量</span>
<span class="topic-tag">大气反演</span>
</section>
<section class="abstract-content">《二氧化碳日变化周期在多大程度上影响全球和区域反演得出的通量估算?》这篇论文研究了<b>二氧化碳</b>(CO2)<b>日变化周期</b>对<b>碳通量</b>估算的影响。研究表明,忽略CO2的日变化会导致对地表-大气CO2通量进行系统性偏差,尤其是在使用白天选择的CO2测量数据进行大气反演时。这种偏差会影响区域和大陆尺度的年度碳通量估算结果,尤其是在欧洲地区。该研究使用了CarboScope大气反演系统和FLUXCOM-X数据进行分析,发现忽略CO2日变化会导致对热带地区CO2源和温带地区CO2汇的估计值产生高估。此研究强调了CO2日变化在碳通量估算中的重要性。</section>
</section>
<section class="paper-card">
<section class="paper-title">Technical note: Towards atmospheric compound identification in chemical ionization mass spectrometry with pesticide standards and machine learning</section>
<section class="paper-authors">Federica Bortolussi, Hilda Sandström, Fariba Partovi, Joona Mikkilä, Patrick Rinke, Matti Rissanen</section>
<section class="paper-journal">Atmospheric Chemistry and Physics</section>
<section class="paper-doi"><a href="https://doi.org/10.5194/acp-25-685-2025" target="_blank">https://doi.org/10.5194/acp-25-685-2025</a></section>
<section class="topic-tags">
<span class="topic-tag">大气成分</span>
<span class="topic-tag">质谱法</span>
<span class="topic-tag">机器学习</span>
</section>
<section class="abstract-content">《技术说明:利用农药标准品和机器学习实现化学电离质谱法中的大气化合物识别》这篇论文研究了如何利用<b>机器学习</b>方法改进<b>化学电离质谱法</b>(CIMS)在大气化学研究中的应用。研究者使用CIMS分析了标准溶液中的多种<b>农药</b>,并利用随机森林和核岭回归等机器学习模型,预测农药的检测结果和信号强度。结果表明,该方法能够有效提高CIMS的化合物识别能力,并揭示了不同电离模式下关键的分子结构特征。这对于改进大气环境监测,特别是农药残留等污染物的检测具有重要意义。</section>
</section>
<section class="paper-card">
<section class="paper-title">Higher Proportion of High‐Energy Lightning Strokes in Global High‐Altitude Areas</section>
<section class="paper-authors">Xinhong Yu, Dong Zheng, Yijun Zhang, Wen Yao, Wenjuan Zhang</section>
<section class="paper-journal">Geophysical Research Letters</section>
<section class="paper-doi"><a href="https://doi.org/10.1029/2024GL112407" target="_blank">https://doi.org/10.1029/2024GL112407</a></section>
<section class="topic-tags">
<span class="topic-tag">高能闪电</span>
<span class="topic-tag">大气遥感</span>
<span class="topic-tag">高海拔地区</span>
</section>
<section class="abstract-content">本文《全球高海拔地区高能<b>闪电</b>比例较高》研究了全球高海拔地区高能闪电的比例。利用世界范围<b>闪电</b>定位网(WWLLN)和闪电成像传感器(LIS)的数据,发现青藏高原、蒙古高原等高海拔地区的高能闪电比例和平均能量显著高于其他地区。研究表明,高海拔地区与雷暴底部和下部的强能量<b>闪电</b>之间存在更强的联系。这一研究结果是此前未被报道的现象,利用遥感手段对大气<b>闪电</b>活动进行了研究,对理解高海拔地区大气过程具有重要价值。</section>
</section>
</section>
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