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Human influence on joint changes in temperature, rainfall and continental aridity 期刊论文
NATURE CLIMATE CHANGE, 2020
作者:  Bonfils, Celine J. W.;  Santer, Benjamin D.;  Fyfe, John C.;  Marvel, Kate;  Phillips, Thomas J.;  Zimmerman, Susan R. H.
收藏  |  浏览/下载:19/0  |  提交时间:2020/07/09
Assessing Global and Local Radiative Feedbacks Based on AGCM Simulations for 1980-2014/2017 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (12)
作者:  Zhang, Rudong;  Wang, Hailong;  Fu, Qiang;  Rasch, Philip J.
收藏  |  浏览/下载:10/0  |  提交时间:2020/06/16
radiative feedback  climate modeling  Arctic amplification  CMIP6  AMIP6  radiative forcing  
Identification of chondritic krypton and xenon in Yellowstone gases and the timing of terrestrial volatile accretion 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (25) : 13997-14004
作者:  Broadley, Michael W.;  Barry, Peter H.;  Bekaert, David V.;  Byrne, David J.;  Caracausi, Antonio;  Ballentine, Christopher J.;  Marty, Bernard
收藏  |  浏览/下载:9/0  |  提交时间:2020/06/16
origin of Earth'  s volatiles  accretion  mantle plume  noble gases  Yellowstone  
The potential impacts of a sulfur- and halogen-rich supereruption such as Los Chocoyos on the atmosphere and climate 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (11) : 6521-6539
作者:  Brenna, Hans;  Kutterolf, Steffen;  Mills, Michael J.;  Krueger, Kirstin
收藏  |  浏览/下载:15/0  |  提交时间:2020/06/09
Mantle data imply a decline of oxidizable volcanic gases could have triggered the Great Oxidation 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Kadoya, Shintaro;  Catling, David C.;  Nicklas, Robert W.;  Puchtel, Igor S.;  Anbar, Ariel D.
收藏  |  浏览/下载:6/0  |  提交时间:2020/06/09
Determining the Anthropogenic Greenhouse Gas Contribution to the Observed Intensification of Extreme Precipitation 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (12)
作者:  Paik, Seungmok;  Min, Seung-Ki;  Zhang, Xuebin;  Donat, Markus G.;  King, Andrew D.;  Sun, Qiaohong
收藏  |  浏览/下载:10/0  |  提交时间:2020/05/25
A Revisit of Direct and Diffuse Solar Radiation in China Based on Homogeneous Surface Observations: Climatology, Trends, and Their Probable Causes 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (9)
作者:  Wang, Yawen;  Yang, Su;  Sanchez-Lorenzo, Arturo;  Yuan, Wenping;  Wild, Martin
收藏  |  浏览/下载:9/0  |  提交时间:2020/07/02
Detected climatic change in global distribution of tropical cyclones 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (20) : 10706-10714
作者:  Murakami, Hiroyuki;  Delworth, Thomas L.;  Cooke, William F.;  Zhao, Ming;  Xiang, Baoqiang;  Hsu, Pang-Chi
收藏  |  浏览/下载:6/0  |  提交时间:2020/05/13
tropical cyclones  detection and attribution  large-ensemble simulations  climate change  spatial pattern  
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.


  
CMIP5 Climate Models Overestimate Cooling by Volcanic Aerosols 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (3)
作者:  Chylek, Petr;  Folland, Chris;  Klett, James D.;  Dubey, Manvendra K.
收藏  |  浏览/下载:9/0  |  提交时间:2020/07/02