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An ERA-5 derived CONUS-wide high-resolution precipitation dataset based on a refined parametric statistical downscaling framework 期刊论文
Water Resources Research, 2021
作者:  Stergios Emmanouil;  Andreas Langousis;  Efthymios. I. Nikolopoulos;  Emmanouil. N. Anagnostou
收藏  |  浏览/下载：0/0  |  提交时间：2021/06/07
Primordial GATA6 macrophages function as extravascular platelets in sterile injury 期刊论文
Science, 2021
作者:  J. Zindel;  M. Peiseler;  M. Hossain;  C. Deppermann;  W. Y. Lee;  B. Haenni;  B. Zuber;  J. F. Deniset;  B. G. J. Surewaard;  D. Candinas;  P. Kubes
收藏  |  浏览/下载：4/0  |  提交时间：2021/03/12
Constructing termite turrets without a blueprint 新闻
来源平台：EurekAlert. 发布日期：2021
作者:  admin
收藏  |  浏览/下载：0/0  |  提交时间：2021/01/22
Convective isolation of Hadean mantle reservoirs through Archean time 期刊论文
Proceedings of the National Academy of Sciences, 2021
作者:  Jonas Tusch;  Carsten Münker;  Eric Hasenstab;  Mike Jansen;  Chris S. Marien;  Florian Kurzweil;  Martin J. Van Kranendonk;  Hugh Smithies;  Wolfgang Maier;  Dieter Garbe-Schönberg
收藏  |  浏览/下载：6/0  |  提交时间：2020/12/28
Photon-engineered radiative cooling textiles 期刊论文
Science, 2020
作者:  Po-Chun Hsu;  Xiuqiang Li
收藏  |  浏览/下载：60/0  |  提交时间：2020/11/20
Simulations Shows Magnetic Field Can Change 10 Times Faster than Previously Thought 新闻
来源平台：Scripps Institution of Oceanography. 发布日期：2020
作者:  admin
收藏  |  浏览/下载：8/0  |  提交时间：2020/07/20
Fossilized solidifications fronts in the Bushveld Complex argues for liquid-dominated magmatic systems 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Kruger, Willem;  Latypov, Rais
收藏  |  浏览/下载：1/0  |  提交时间：2020/06/16
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.


  
Abrupt changes across the Arctic permafrost region endanger northern development 期刊论文
NATURE CLIMATE CHANGE, 2019, 9 (11) : 858-+
作者:  Teufel, B.;  Sushama, L.
收藏  |  浏览/下载：6/0  |  提交时间：2019/11/27
Variability in the number of intense tropical cyclones during extreme El Niño events- The importance of predicting internal atmospheric variability in seasonal tropical cyclone forecasts - 新闻
来源平台：Japan Agency for Marine-Earth Science and Technology. 发布日期：2019
作者:  admin
收藏  |  浏览/下载：11/0  |  提交时间：2019/09/19