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Understanding aerosol composition in a tropical inter-Andean valley impacted by agro-industrial and urban emissions 期刊论文
Atmospheric Chemistry and Physics, 2022
作者:  Lady Mateus-Fontecha, Angela Vargas-Burbano, Rodrigo Jimenez, Nestor Y. Rojas, German Rueda-Saa, Dominik van Pinxteren, Manuela van Pinxteren, Khanneh Wadinga Fomba, and Hartmut Herrmann
收藏  |  浏览/下载：21/0  |  提交时间：2022/07/08
Concentration-discharge relationships of dissolved rhenium in Alpine catchments reveal its use as a tracer of oxidative weathering 期刊论文
Water Resources Research, 2021
作者:  Robert G. Hilton;  Jens M. Turowski;  Matthew Winnick;  Mathieu Dellinger;  Patrick Schleppi;  Kenneth H. Williams;  Corey R. Lawrence;  Katharine Maher;  Martin West;  Amanda Hayton
收藏  |  浏览/下载：8/0  |  提交时间：2021/11/15
Decomposing the Oxygen Signal in the Ocean Interior: Beyond Decomposing Organic Matter 期刊论文
Geophysical Research Letters, 2021
作者:  Nicolas Cassar;  David Nicholson;  Samar Khatiwala;  Ellen Cliff
收藏  |  浏览/下载：6/0  |  提交时间：2021/10/07
A framework for untangling transient groundwater mixing and travel times 期刊论文
Water Resources Research, 2021
作者:  Andrea L. Popp;  Á;  lvaro Pardo‐;  Á;  lvarez;  Oliver S. Schilling;  Andreas Scheidegger;  Sté;  phanie Musy;  Morgan Peel;  Philip Brunner;  Roland Purtschert;  Daniel Hunkeler;  Rolf Kipfer
收藏  |  浏览/下载：5/0  |  提交时间：2021/03/17
Single‐rate dual‐domain mass transfer model: Elucidating temperature effects 期刊论文
Water Resources Research, 2021
作者:  M. Binder;  A. Hahnewald;  F. Hä;  ndel;  H. Prommer;  C. Engelmann;  D. Burghardt;  P. Stock;  F. Tritschler;  R. Liedl;  M. Walther
收藏  |  浏览/下载：7/0  |  提交时间：2021/03/17
Chemical composition and light absorption of carbonaceous aerosols emitted from crop residue burning: Influence of combustion efficiency 期刊论文
Atmospheric Chemistry and Physics, 2020
作者:  Yujue Wang, Min Hu, Nan Xu, Yanhong Qin, Zhijun Wu, Liwu Zeng, Xiaofeng Huang, and Lingyan He
收藏  |  浏览/下载：12/0  |  提交时间：2020/08/09
Hygroscopic behavior of aerosols generated from solutions of 3-methyl-1,2,3-butanetricarboxylic acid, its sodium salts, and its mixtures with NaCl 期刊论文
Atmospheric Chemistry and Physics, 2020
作者:  Li Wu, Clara Becote, Sophie Sobanska, Pierre-Marie Flaud, Emilie Perraudin, Eric Villenave, Young-Chul Song, and Chul-Un Ro
收藏  |  浏览/下载：9/0  |  提交时间：2020/06/01
Enhanced New Particle Formation Above the Marine Boundary Layer Over the Yellow Sea: Potential Impacts on Cloud Condensation Nuclei 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (9)
作者:  Takegawa, N.;  Seto, T.;  Moteki, N.;  Koike, M.;  Oshima, N.;  Adachi, K.;  Kita, K.;  Takami, A.;  Kondo, Y.
收藏  |  浏览/下载：8/0  |  提交时间：2020/07/02
Aerosol  New particle formation  East Asia  
Hydrothermal (NN)-N-15-N-15 abundances constrain the origins of mantle nitrogen 期刊论文
NATURE, 2020, 580 (7803) : 367-+
作者:  Zhao, Steven;  Jang, Cholsoon;  Liu, Joyce;  Uehara, Kahealani;  Gilbert, Michael;  Izzo, Luke;  Zeng, Xianfeng;  Trefely, Sophie;  Fernandez, Sully;  Carrer, Alessandro;  Miller, Katelyn D.;  Schug, Zachary T.;  Snyder, Nathaniel W.;  Gade, Terence P.;  Titchenell, Paul M.;  Rabinowitz, Joshua D.;  Wellen, Kathryn E.
收藏  |  浏览/下载：14/0  |  提交时间：2020/05/13

Nitrogen is the main constituent of the Earth'  s atmosphere, but its provenance in the Earth'  s mantle remains uncertain. The relative contribution of primordial nitrogen inherited during the Earth'  s accretion versus that subducted from the Earth'  s surface is unclear(1-6). Here we show that the mantle may have retained remnants of such primordial nitrogen. We use the rare (NN)-N-15-N-15 isotopologue of N-2 as a new tracer of air contamination in volcanic gas effusions. By constraining air contamination in gases from Iceland, Eifel (Germany) and Yellowstone (USA), we derive estimates of mantle delta N-15 (the fractional difference in N-15/N-14 from air), N-2/Ar-36 and N-2/He-3. Our results show that negative delta N-15 values observed in gases, previously regarded as indicating a mantle origin for nitrogen(7-10), in fact represent dominantly air-derived N-2 that experienced N-15/N-14 fractionation in hydrothermal systems. Using two-component mixing models to correct for this effect, the (NN)-N-15-N-15 data allow extrapolations that characterize mantle endmember delta N-15, N-2/Ar-36 and N-2/He-3 values. We show that the Eifel region has slightly increased delta N-15 and N-2/Ar-36 values relative to estimates for the convective mantle provided by mid-ocean-ridge basalts(11), consistent with subducted nitrogen being added to the mantle source. In contrast, we find that whereas the Yellowstone plume has delta N-15 values substantially greater than that of the convective mantle, resembling surface components(12-15), its N-2/Ar-36 and N-2/He-3 ratios are indistinguishable from those of the convective mantle. This observation raises the possibility that the plume hosts a primordial component. We provide a test of the subduction hypothesis with a two-box model, describing the evolution of mantle and surface nitrogen through geological time. We show that the effect of subduction on the deep nitrogen cycle may be less important than has been suggested by previous investigations. We propose instead that high mid-ocean-ridge basalt and plume delta N-15 values may both be dominantly primordial features.


  
Modeling stratospheric intrusion and trans-Pacific transport on tropospheric ozone using hemispheric CMAQ during April 2010-Part 1: Model evaluation and air mass characterization for stratosphere-troposphere transport 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (6) : 3373-3396
作者:  Itahashi, Syuichi;  Mathur, Rohit;  Hogrefe, Christian;  Zhang, Yang
收藏  |  浏览/下载：8/0  |  提交时间：2020/07/02