Zobrazeno 1 - 10
of 646
pro vyhledávání: '"Meinrat O Andreae"'
Autor:
Meinrat O Andreae, Tracey W Andreae
Publikováno v:
PLoS ONE, Vol 17, Iss 1, p e0263189 (2022)
Rock art originated some 46,000 years ago and can provide unique insights into the minds of our human ancestors. However, dating of these ancient images, especially of petroglyphs, remains a challenge. In this study, we explore the potential of deriv
Externí odkaz:
https://doaj.org/article/56dd7f058be44a1eb4e93735f786be1c
Autor:
Meinrat O Andreae, Abdullah Al-Amri, Tracey W Andreae, Alan Garfinkel, Gerald Haug, Klaus Peter Jochum, Brigitte Stoll, Ulrike Weis
Publikováno v:
PLoS ONE, Vol 15, Iss 8, p e0235421 (2020)
We investigated rock varnish, a thin, manganese- and iron-rich, dark surface crust, on basaltic lava flows and petroglyphs in the Owens and Rose Valleys (California) by portable X-ray fluorescence (pXRF) and femtosecond laser-ablation inductively-cou
Externí odkaz:
https://doaj.org/article/4763216c9ab64e63b71f2758e307a26f
Publikováno v:
AGU Advances, Vol 5, Iss 4, Pp n/a-n/a (2024)
Abstract Multiphase oxidation of sulfur dioxide (SO2) is an important source of sulfate in the atmosphere. There are, however, concerns that protons produced during SO2 oxidation may cause rapid acidification of aerosol water and thereby quickly shut
Externí odkaz:
https://doaj.org/article/b6e42f6246ec4f60a17454e55af896eb
Autor:
Mira L. Pöhlker, Christopher Pöhlker, Johannes Quaas, Johannes Mülmenstädt, Andrea Pozzer, Meinrat O. Andreae, Paulo Artaxo, Karoline Block, Hugh Coe, Barbara Ervens, Peter Gallimore, Cassandra J. Gaston, Sachin S. Gunthe, Silvia Henning, Hartmut Herrmann, Ovid O. Krüger, Gordon McFiggans, Laurent Poulain, Subha S. Raj, Ernesto Reyes-Villegas, Haley M. Royer, David Walter, Yuan Wang, Ulrich Pöschl
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
Abstract The climate effects of atmospheric aerosol particles serving as cloud condensation nuclei (CCN) depend on chemical composition and hygroscopicity, which are highly variable on spatial and temporal scales. Here we present global CCN measureme
Externí odkaz:
https://doaj.org/article/d55c7a202934495cb4a11ce1e95375ed
Autor:
Aishwarya Singh, Subha S. Raj, Upasana Panda, Snehitha M. Kommula, Christi Jose, Tianjia Liu, Shan Huang, Basudev Swain, Mira L. Pöhlker, Ernesto Reyes-Villegas, Narendra Ojha, Aditya Vaishya, Alessandro Bigi, R. Ravikrishna, Qiao Zhu, Liuhua Shi, James Allen, Scot T. Martin, Gordon McFiggans, Meinrat O. Andreae, Ulrich Pöschl, Hugh Coe, F. Bianchi, Hang Su, Vijay P. Kanawade, Pengfei Liu, Sachin S. Gunthe
Publikováno v:
npj Climate and Atmospheric Science, Vol 6, Iss 1, Pp 1-12 (2023)
Abstract The COVID lockdown presented an interesting opportunity to study the anthropogenic emissions from different sectors under relatively cleaner conditions in India. The complex interplays of power production, industry, and transport could be di
Externí odkaz:
https://doaj.org/article/94a4fe6ab9554835bde6eded9e33c577
Autor:
Jiandong Wang, Jiaping Wang, Runlong Cai, Chao Liu, Jingkun Jiang, Wei Nie, Jinbo Wang, Nobuhiro Moteki, Rahul A. Zaveri, Xin Huang, Nan Ma, Ganzhen Chen, Zilin Wang, Yuzhi Jin, Jing Cai, Yuxuan Zhang, Xuguang Chi, Bruna A. Holanda, Jia Xing, Tengyu Liu, Ximeng Qi, Qiaoqiao Wang, Christopher Pöhlker, Hang Su, Yafang Cheng, Shuxiao Wang, Jiming Hao, Meinrat O. Andreae, Aijun Ding
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract Black carbon (BC) plays an important role in the climate system because of its strong warming effect, yet the magnitude of this effect is highly uncertain owing to the complex mixing state of aerosols. Here we build a unified theoretical fra
Externí odkaz:
https://doaj.org/article/48df5f6dd4b149cf994c242c60b9b188
Autor:
Bruna A. Holanda, Marco A. Franco, David Walter, Paulo Artaxo, Samara Carbone, Yafang Cheng, Sourangsu Chowdhury, Florian Ditas, Martin Gysel-Beer, Thomas Klimach, Leslie A. Kremper, Ovid O. Krüger, Jost V. Lavric, Jos Lelieveld, Chaoqun Ma, Luiz A. T. Machado, Robin L. Modini, Fernando G. Morais, Andrea Pozzer, Jorge Saturno, Hang Su, Manfred Wendisch, Stefan Wolff, Mira L. Pöhlker, Meinrat O. Andreae, Ulrich Pöschl, Christopher Pöhlker
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-15 (2023)
Abstract Smoke from vegetation fires affects air quality, atmospheric cycling, and the climate in the Amazon rain forest. A major unknown has remained the quantity of long-range transported smoke from Africa in relation to local and regional fire emi
Externí odkaz:
https://doaj.org/article/587ad1fc3f5b4ee5a33b93b77cd65f96
Autor:
Xin Huang, Ke Ding, Jingyi Liu, Zilin Wang, Rong Tang, Lian Xue, Haikun Wang, Qiang Zhang, Zhe-Min Tan, Congbin Fu, Steven J. Davis, Meinrat O. Andreae, Aijun Ding
Publikováno v:
Science. 379:457-461
Extreme wildfires threaten human lives, air quality, and ecosystems. Meteorology plays a vital role in wildfire behaviors, and the links between wildfires and climate have been widely studied. However, it is not fully clear how fire-weather feedback
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e205c177a770cbfd7d1a762bf6524729
https://doi.org/10.1126/science.add9843
https://doi.org/10.1126/science.add9843
Autor:
Yunfan Liu, Hang Su, Siwen Wang, Chao Wei, Wei Tao, Mira L. Pöhlker, Christopher Pöhlker, Bruna A. Holanda, Ovid O. Krüger, Thorsten Hoffmann, Manfred Wendisch, Paulo Artaxo, Ulrich Pöschl, Meinrat O. Andreae, Yafang Cheng
Publikováno v:
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics Discussions
Atmospheric Chemistry and Physics Discussions
Nucleation and condensation associated with biogenic volatile organic compounds (BVOCs) are important aerosol formation pathways, yet their contribution to the upper tropospheric aerosols remains inconclusive, hindering the understanding of aerosol c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4e98c49d39f64f1cc24aee9acbaf2d2
https://doi.org/10.5194/acp-23-251-2023
https://doi.org/10.5194/acp-23-251-2023
Autor:
Yiming Lin, Klaus Peter Jochum, Denis Scholz, Dirk L. Hoffmann, Brigitte Stoll, Ulrike Weis, Meinrat O. Andreae
Publikováno v:
Solid Earth Sciences, Vol 2, Iss 1, Pp 1-9 (2017)
We present an in-situ method for Th and U isotope measurements by laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICPMS) to determine possible age inversions of stalagmites, using a 213 nm Nd:YAG laser connected to
Externí odkaz:
https://doaj.org/article/64855e012e5b437491accbff285b3dd4