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新研究首次全面评估氢的全球变暖潜力 快报文章
地球科学快报,2023年第12期
作者:  张树良
Microsoft Word(16Kb)  |  收藏  |  浏览/下载:591/0  |  提交时间:2023/06/25
Global Warming Potential of hydrogen  multi-model assessment  hydrogen leakage  atmospheric chemistry  climate and earth system modelling  
Reductions in daily continental-scale atmospheric circulation biases between generations of global climate models: CMIP5 to CMIP6 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (6)
作者:  Cannon, Alex J.
收藏  |  浏览/下载:22/0  |  提交时间:2020/07/02
climate model  atmospheric circulation  model evaluation  regional climate  global climate  
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:73/0  |  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.


  
Climate variability over South America-regional and large scale features simulated by the Brazilian Atmospheric Model (BAM-v0) 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019
作者:  Cavalcanti, Iracema F. A.;  Silveira, Virginia P.;  Figueroa, Silvio N.;  Kubota, Paulo Y.;  Bonatti, Jose P.;  de Souza, Dayana C.
收藏  |  浏览/下载:41/0  |  提交时间:2020/02/17
Atmospheric Global Circulation Model  BAM-v0  climate variability  South America  teleconnections  
Seasonal precipitation change in the Western North Pacific and East Asia under global warming in two high-resolution AGCMs 期刊论文
CLIMATE DYNAMICS, 2019, 53: 5583-5605
作者:  Chen, Chao-An;  Hsu, Huang-Hsiung;  Hong, Chi-Cherng;  Chiu, Ping-Gin;  Tu, Chia-Ying;  Lin, Shian-Jiann;  Kitoh, Akio
收藏  |  浏览/下载:26/0  |  提交时间:2019/11/27
Precipitation change  The western North Pacific and East Asia  High-resolution atmospheric model  Global warming  
Is the global atmospheric model MRI-AGCM3.2 better than the CMIP5 atmospheric models in simulating precipitation over East Asia? 期刊论文
CLIMATE DYNAMICS, 2018, 51: 4489-4510
作者:  Kusunoki, Shoji
收藏  |  浏览/下载:33/0  |  提交时间:2019/04/09
Precipitation  East Asia  Global atmospheric model  High horizontal resolution  Cumulus convection scheme  The West Pacific Subtropical High  
Assessing the Dynamic Versus Thermodynamic Origin of Climate Model Biases 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (16) : 8471-8479
作者:  Wehrli, Kathrin;  Guillod, Benoit P.;  Hauser, Mathias;  Leclair, Matthieu;  Seneviratne, Sonia I.
收藏  |  浏览/下载:27/0  |  提交时间:2019/04/09
climate model biases  Earth system models  atmospheric nudging  dynamics versus thermodynamics  global climate models  systematic biases  
Influence of blocking on Northern European and Western Russian heatwaves in large climate model ensembles 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2018, 13 (5)
作者:  Schaller, N.;  Sillmann, J.;  Anstey, J.;  Fischer, E. M.;  Grams, C. M.;  Russo, S.
收藏  |  浏览/下载:14/0  |  提交时间:2019/04/09
summer heatwaves  atmospheric blocking  large global climate model ensembles  
Projected changes in surface solar radiation in CMIP5 global climate models and in EURO-CORDEX regional climate models for Europe 期刊论文
CLIMATE DYNAMICS, 2017, 49
作者:  Bartok, Blanka;  Wild, Martin;  Folini, Doris;  Luthi, Daniel;  Kotlarski, Sven;  Schar, Christoph;  Vautard, Robert;  Jerez, Sonia;  Imecs, Zoltan
收藏  |  浏览/下载:21/0  |  提交时间:2019/04/09
Surface solar radiation  CMIP5 global climate model  EURO-CORDEX regional climate model  Cloudiness  Atmospheric absorption