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DOE资助1560万美元研究云和气溶胶复杂过程 快报文章
地球科学快报,2021年第14期
作者:  刘燕飞
Microsoft Word(50Kb)  |  收藏  |  浏览/下载:441/0  |  提交时间:2021/07/26
Climate Modeling  atmospheric clouds and the aerosols  earth system models  DOE  
Impact of Higher Spatial Atmospheric Resolution on Precipitation Extremes Over Land in Global Climate Models 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (13)
作者:  Bador, Margot;  Boe, Julien;  Terray, Laurent;  Alexander, Lisa, V;  Baker, Alexander;  Bellucci, Alessio;  Haarsma, Rein;  Koenigk, Torben;  Moine, Marie-Pierre;  Lohmann, Katja;  Putrasahan, Dian A.;  Roberts, Chris;  Roberts, Malcolm;  Scoccimarro, Enrico;  Schiemann, Reinhard;  Seddon, Jon;  Senan, Retish;  Valcke, Sophie;  Vanniere, Benoit
收藏  |  浏览/下载:12/0  |  提交时间:2020/08/18
precipitation extremes  multimodel and multiproduct of observations framework  performance of the models  global climate models for CMIP6 and HighResMIP  sensitivity to atmospheric spatial resolution  
Role of the mean state for the Southern Hemispheric jet stream response to CO(2)forcing in CMIP6 models 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (6)
作者:  Curtis, Paul Edwin;  Ceppi, Paulo;  Zappa, Giuseppe
收藏  |  浏览/下载:8/0  |  提交时间:2020/08/18
climate change  atmospheric circulation  jet streams  climate models  
The Effect of the Madden-Julian Oscillation on the North Atlantic Oscillation Using Idealized Numerical Experiments 期刊论文
JOURNAL OF THE ATMOSPHERIC SCIENCES, 2020, 77 (5) : 1613-1635
作者:  Fromang, Sebastien;  Riviere, Gwendal
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
Atmospheric circulation  Teleconnections  Waves  atmospheric  Madden-Julian oscillation  North Atlantic Oscillation  Quasigeostrophic models  
Asynchronous carbon sink saturation in African and Amazonian tropical forests 期刊论文
NATURE, 2020, 579 (7797) : 80-+
作者:  Wannes Hubau;  Simon L. Lewis;  Oliver L. Phillips;  Kofi Affum-Baffoe;  Hans Beeckman;  Aida Cuní;  -Sanchez;  Armandu K. Daniels;  Corneille E. N. Ewango;  Sophie Fauset;  Jacques M. Mukinzi;  Douglas Sheil;  Bonaventure Sonké;  Martin J. P. Sullivan;  Terry C. H. Sunderland;  Hermann Taedoumg;  Sean C. Thomas;  Lee J. T. White;  Katharine A. Abernethy;  Stephen Adu-Bredu;  Christian A. Amani;  Timothy R. Baker;  Lindsay F. Banin;  Fidè;  le Baya;  Serge K. Begne;  Amy C. Bennett;  Fabrice Benedet;  Robert Bitariho;  Yannick E. Bocko;  Pascal Boeckx;  Patrick Boundja;  Roel J. W. Brienen;  Terry Brncic;  Eric Chezeaux;  George B. Chuyong;  Connie J. Clark;  Murray Collins;  James A. Comiskey;  David A. Coomes;  Greta C. Dargie;  Thales de Haulleville;  Marie Noel Djuikouo Kamdem;  Jean-Louis Doucet;  Adriane Esquivel-Muelbert;  Ted R. Feldpausch;  Alusine Fofanah;  Ernest G. Foli;  Martin Gilpin;  Emanuel Gloor;  Christelle Gonmadje;  Sylvie Gourlet-Fleury;  Jefferson S. Hall;  Alan C. Hamilton;  David J. Harris;  Terese B. Hart;  Mireille B. N. Hockemba;  Annette Hladik;  Suspense A. Ifo;  Kathryn J. Jeffery;  Tommaso Jucker;  Emmanuel Kasongo Yakusu;  Elizabeth Kearsley;  David Kenfack;  Alexander Koch;  Miguel E. Leal;  Aurora Levesley;  Jeremy A. Lindsell;  Janvier Lisingo;  Gabriela Lopez-Gonzalez;  Jon C. Lovett;  Jean-Remy Makana;  Yadvinder Malhi;  Andrew R. Marshall;  Jim Martin;  Emanuel H. Martin;  Faustin M. Mbayu;  Vincent P. Medjibe;  Vianet Mihindou;  Edward T. A. Mitchard;  Sam Moore;  Pantaleo K. T. Munishi;  Natacha Nssi Bengone;  Lucas Ojo;  Fidè;  le Evouna Ondo;  Kelvin S.-H. Peh;  Georgia C. Pickavance;  Axel Dalberg Poulsen;  John R. Poulsen;  Lan Qie;  Jan Reitsma;  Francesco Rovero;  Michael D. Swaine;  Joey Talbot;  James Taplin;  David M. Taylor;  Duncan W. Thomas;  Benjamin Toirambe;  John Tshibamba Mukendi;  Darlington Tuagben;  Peter M. Umunay;  Geertje M. F. van der Heijden;  Hans Verbeeck;  Jason Vleminckx;  Simon Willcock;  Hannsjö;  rg Wö;  ll;  John T. Woods;  Lise Zemagho
收藏  |  浏览/下载:23/0  |  提交时间:2020/05/13

Structurally intact tropical forests sequestered about half of the global terrestrial carbon uptake over the 1990s and early 2000s, removing about 15 per cent of anthropogenic carbon dioxide emissions(1-3). Climate-driven vegetation models typically predict that this tropical forest '  carbon sink'  will continue for decades(4,5). Here we assess trends in the carbon sink using 244 structurally intact African tropical forests spanning 11 countries, compare them with 321 published plots from Amazonia and investigate the underlying drivers of the trends. The carbon sink in live aboveground biomass in intact African tropical forests has been stable for the three decades to 2015, at 0.66 tonnes of carbon per hectare per year (95 per cent confidence interval 0.53-0.79), in contrast to the long-term decline in Amazonian forests(6). Therefore the carbon sink responses of Earth'  s two largest expanses of tropical forest have diverged. The difference is largely driven by carbon losses from tree mortality, with no detectable multi-decadal trend in Africa and a long-term increase in Amazonia. Both continents show increasing tree growth, consistent with the expected net effect of rising atmospheric carbon dioxide and air temperature(7-9). Despite the past stability of the African carbon sink, our most intensively monitored plots suggest a post-2010 increase in carbon losses, delayed compared to Amazonia, indicating asynchronous carbon sink saturation on the two continents. A statistical model including carbon dioxide, temperature, drought and forest dynamics accounts for the observed trends and indicates a long-term future decline in the African sink, whereas the Amazonian sink continues to weaken rapidly. Overall, the uptake of carbon into Earth'  s intact tropical forests peaked in the 1990s. Given that the global terrestrial carbon sink is increasing in size, independent observations indicating greater recent carbon uptake into the Northern Hemisphere landmass(10) reinforce our conclusion that the intact tropical forest carbon sink has already peaked. This saturation and ongoing decline of the tropical forest carbon sink has consequences for policies intended to stabilize Earth'  s climate.


  
A Causality-Based View of the Interaction between Synoptic- and Planetary-Scale Atmospheric Disturbances 期刊论文
JOURNAL OF THE ATMOSPHERIC SCIENCES, 2020, 77 (3) : 925-941
作者:  Samarasinghe, Savini M.;  Deng, Yi;  Ebert-Uphoff, Imme
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
Atmosphere  Atmospheric circulation  Spectral analysis  models  distribution  Time series  
Historical evaluations and simulations of precipitation over East Africa from Rossby centre regional climate model 期刊论文
ATMOSPHERIC RESEARCH, 2020, 232
作者:  Ayugi, Brian;  Tan, Guirong;  Gnitou, Gnim Tchalim;  Ojara, Moses;  Ongoma, Victor
收藏  |  浏览/下载:10/0  |  提交时间:2020/07/02
CORDEX  Greater Horn of Africa  Precipitation  Regional climate models  Rossby centre atmospheric models  
Added value of CMIP6 over CMIP5 models in simulating Indian summer monsoon rainfall 期刊论文
ATMOSPHERIC RESEARCH, 2020, 232
作者:  Gusain, A.;  Ghosh, S.;  Karmakar, S.
收藏  |  浏览/下载:8/0  |  提交时间:2020/07/02
Atmospheric circulation  CMIP models phase 6  General circulation models  ISMR characteristics  Multimodel average  
Variability of the Stratospheric Quasi-Biennial Oscillation and Its Wave Forcing Simulated in the Beijing Climate Center Atmospheric General Circulation Model 期刊论文
JOURNAL OF THE ATMOSPHERIC SCIENCES, 2020, 77 (1) : 149-165
作者:  Lu, Yixiong;  Wu, Tongwen;  Jie, Weihua;  Scaife, Adam A.;  Andrews, Martin B.;  Richter, Jadwiga H.
收藏  |  浏览/下载:18/0  |  提交时间:2020/07/02
Gravity waves  Quasibiennial oscillation  Waves  atmospheric  General circulation models  Tropical variability  
Convergence of Convective Updraft Ensembles With Respect to the Grid Spacing of Atmospheric Models 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019
作者:  Sueki, Kenta;  Yamaura, Tsuyoshi;  Yashiro, Hisashi;  Nishizawa, Seiya;  Yoshida, Ryuji;  Kajikawa, Yoshiyuki;  Tomita, Hirofumi
收藏  |  浏览/下载:5/0  |  提交时间:2020/02/17
numerical convergence  deep moist convection  high-resolution simulations  grid-refinement experiments  atmospheric models  terra incognita