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Macrophysical and Microphysical Characteristics of Convective Rain Cells Observed During SOS-CHUVA 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (13)
作者:  Cecchini, Micael Amore;  Silva Dias, Maria A. F.;  Machado, Luiz A. T.;  Morales Rodriguez, Carlos A.;  Biscaro, Thiago
收藏  |  浏览/下载:13/0  |  提交时间:2020/08/18
weather radar  rain cells  tracking  holistic approach  
Vertical profiles of droplet size distributions derived from cloud-side observations by the research scanning polarimeter: Tests on simulated data 期刊论文
ATMOSPHERIC RESEARCH, 2020, 239
作者:  Alexandrov, Mikhail D.;  Miller, Daniel J.;  Rajapakshe, Chamara;  Fridlind, Ann;  van Diedenhoven, Bastiaan;  Cairns, Brian;  Ackerman, Andrew S.;  Zhang, Zhibo
收藏  |  浏览/下载:12/0  |  提交时间:2020/08/18
Clouds  Remote sensing  Cloud droplet size  Vertical profile  Radiometry  Polarization  
Constraining remote oxidation capacity with ATom observations 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (13) : 7753-7781
作者:  Travis, Katherine R.;  Heald, Colette L.;  Allen, Hannah M.;  Apel, Eric C.;  Arnold, Stephen R.;  Blake, Donald R.;  Brune, William H.;  Chen, Xin;  Commane, Roisin;  Crounse, John D.;  Daube, Bruce C.;  Diskin, Glenn S.;  Elkins, James W.;  Evans, Mathew J.;  Hall, Samuel R.;  Hintsa, Eric J.;  Hornbrook, Rebecca S.;  Kasibhatla, Prasad S.;  Kim, Michelle J.;  Luo, Gan;  McKain, Kathryn;  Millet, Dylan B.;  Moore, Fred L.;  Peischl, Jeffrey;  Ryerson, Thomas B.;  Sherwen, Tomas;  Thames, Alexander B.;  Ullmann, Kirk;  Wang, Xuan;  Wennberg, Paul O.;  Wolfe, Glenn M.;  Yu, Fangqun
收藏  |  浏览/下载:49/0  |  提交时间:2020/08/18
Pleistocene lakes and paleohydrologic environments of the Tecopa basin, California: Constraints on the drainage integration of the Amargosa River 期刊论文
GEOLOGICAL SOCIETY OF AMERICA BULLETIN, 2020, 132 (7-8) : 1537-1565
作者:  Reheis, Marith C.;  Caskey, John;  Bright, Jordon;  Paces, James B.;  Mahan, Shannon A.;  Wan, Elmira
收藏  |  浏览/下载:10/0  |  提交时间:2020/08/18
A remnant planetary core in the hot-Neptune desert 期刊论文
NATURE, 2020, 583 (7814) : 39-+
作者:  David J. Armstrong;  Thé;  o A. Lopez;  Vardan Adibekyan;  Richard A. Booth;  Edward M. Bryant;  Karen A. Collins;  Magali Deleuil;  Alexandre Emsenhuber;  Chelsea X. Huang;  George W. King;  Jorge Lillo-Box;  Jack J. Lissauer;  Elisabeth Matthews;  Olivier Mousis;  Louise D. Nielsen;  Hugh Osborn;  Jon Otegi;  Nuno C. Santos;  ;  rgio G. Sousa;  Keivan G. Stassun;  Dimitri Veras;  Carl Ziegler;  Jack S. Acton;  Jose M. Almenara;  David R. Anderson;  David Barrado;  Susana C. C. Barros;  Daniel Bayliss;  Claudia Belardi;  Francois Bouchy;  ;  sar Briceñ;  o;  Matteo Brogi;  David J. A. Brown;  Matthew R. Burleigh;  Sarah L. Casewell;  Alexander Chaushev;  David R. Ciardi;  Kevin I. Collins;  Knicole D. Coló;  n;  Benjamin F. Cooke;  Ian J. M. Crossfield;  Rodrigo F. Dí;  az;  Elisa Delgado Mena;  Olivier D. S. Demangeon;  Caroline Dorn;  Xavier Dumusque;  Philipp Eigmü;  ller;  Michael Fausnaugh;  Pedro Figueira;  Tianjun Gan;  Siddharth Gandhi;  Samuel Gill;  Erica J. Gonzales;  Michael R. Goad;  Maximilian N. Gü;  nther;  Ravit Helled;  Saeed Hojjatpanah;  Steve B. Howell;  James Jackman;  James S. Jenkins;  Jon M. Jenkins;  Eric L. N. Jensen;  Grant M. Kennedy;  David W. Latham;  Nicholas Law;  Monika Lendl;  Michael Lozovsky;  Andrew W. Mann;  Maximiliano Moyano;  James McCormac;  Farzana Meru;  Christoph Mordasini;  Ares Osborn;  Don Pollacco;  Didier Queloz;  Liam Raynard;  George R. Ricker;  Pamela Rowden;  Alexandre Santerne;  Joshua E. Schlieder;  Sara Seager;  Lizhou Sha;  Thiam-Guan Tan;  Rosanna H. Tilbrook;  Eric Ting;  Sté;  phane Udry;  Roland Vanderspek;  Christopher A. Watson;  Richard G. West;  Paul A. Wilson;  Joshua N. Winn;  Peter Wheatley;  Jesus Noel Villasenor;  Jose I. Vines;  Zhuchang Zhan
收藏  |  浏览/下载:20/0  |  提交时间:2020/07/06

The interiors of giant planets remain poorly understood. Even for the planets in the Solar System, difficulties in observation lead to large uncertainties in the properties of planetary cores. Exoplanets that have undergone rare evolutionary processes provide a route to understanding planetary interiors. Planets found in and near the typically barren hot-Neptune '  desert'  (1,2)(a region in mass-radius space that contains few planets) have proved to be particularly valuable in this regard. These planets include HD149026b(3), which is thought to have an unusually massive core, and recent discoveries such as LTT9779b(4)and NGTS-4b(5), on which photoevaporation has removed a substantial part of their outer atmospheres. Here we report observations of the planet TOI-849b, which has a radius smaller than Neptune'  s but an anomalously large mass of39.1-2.6+2.7Earth masses and a density of5.2-0.8+0.7grams per cubic centimetre, similar to Earth'  s. Interior-structure models suggest that any gaseous envelope of pure hydrogen and helium consists of no more than3.9-0.9+0.8 per cent of the total planetary mass. The planet could have been a gas giant before undergoing extreme mass loss via thermal self-disruption or giant planet collisions, or it could have avoided substantial gas accretion, perhaps through gap opening or late formation(6). Although photoevaporation rates cannot account for the mass loss required to reduce a Jupiter-like gas giant, they can remove a small (a few Earth masses) hydrogen and helium envelope on timescales of several billion years, implying that any remaining atmosphere on TOI-849b is likely to be enriched by water or other volatiles from the planetary interior. We conclude that TOI-849b is the remnant core of a giant planet.


Observations of TOI-849b reveal a radius smaller than Neptune'  s but a large mass of about 40 Earth masses, indicating that the planet is the remnant core of a gas giant.


  
Drinking water quality from rural handpump-boreholes in Africa 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (6)
作者:  Lapworth, D. J.;  MacDonald, A. M.;  Kebede, S.;  Owor, M.;  Chavula, G.;  Pallas, H.;  Wilson, P.;  Ward, J. S. T.;  Lark, M.;  Okullo, J.;  Mwathunga, E.;  Banda, S.;  Gwengweya, G.;  Nedaw, D.;  Jumbo, S.;  Banks, E.;  Cook, P.;  Casey, V
收藏  |  浏览/下载:17/0  |  提交时间:2020/08/18
groundwater  water quality  boreholes  handpumps  SDG 6  Africa  climate  
Deposition, recycling, and archival of nitrate stable isotopes between the air-snow interface: comparison between Dronning Maud Land and Dome C, Antarctica 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (9) : 5861-5885
作者:  Winton, V. Holly L.;  Ming, Alison;  Caillon, Nicolas;  Hauge, Lisa;  Jones, Anna;  Savarino, Joel;  Yang, Xin;  Frey, Markus M.
收藏  |  浏览/下载:11/0  |  提交时间:2020/05/20
Critical role of water in the formation of continental crust 期刊论文
NATURE GEOSCIENCE, 2020, 13 (5) : 331-338
作者:  Collins, William J.;  Murphy, J. Brendan;  Johnson, Tim E.;  Huang, Hui-Qing
收藏  |  浏览/下载:5/0  |  提交时间:2020/05/13
Physics-Informed Deep Neural Networks for Learning Parameters and Constitutive Relationships in Subsurface Flow Problems 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (5)
作者:  Tartakovsky, A. M.;  Marrero, C. Ortiz;  Perdikaris, Paris;  Tartakovsky, G. D.;  Barajas-Solano, D.
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/02
deep neural networks  physics-informed machine learning  parameter estimation  learning constitutive relationships  unsaturated flow  MAP  
Constraining the Assimilation of SWOT Observations With Hydraulic Geometry Relations 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (5)
作者:  Andreadis, K. M.;  Brinkerhoff, C. B.;  Gleason, C. J.
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/02