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Where Do Cold Air Outbreaks Occur, and How Have They Changed Over Time? 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (13)
作者:  Smith, Erik T.;  Sheridan, Scott C.
收藏  |  浏览/下载:13/0  |  提交时间:2020/05/20
cold air outbreaks  extreme cold events  climate change  polar outbreak  temperature trends  ERA5  
Temperature monitoring in mountain regions using reanalyses: lessons from the Alps 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (4)
作者:  Scherrer, Simon C.
收藏  |  浏览/下载:12/0  |  提交时间:2020/07/02
temperature monitoring  trends  Alps  reanalysis  evaluation  high-resolution models  data assimilation  
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:70/0  |  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.


  
Time-Varying Contribution of Internal Dynamics to Wintertime Land Temperature Trends Over the Northern Hemisphere 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019
作者:  Gong, Hainan;  Wang, Lin;  Chen, Wen;  Wu, Renguang
收藏  |  浏览/下载:17/0  |  提交时间:2020/02/17
wintertime land temperature trends  time-varying contributions of internal dynamics  the Arctic Oscillation  climate change  attribution  quantitative analysis  
Spatio-temporal analysis for extreme temperature indices over the Levant region 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (15) : 5556-5582
作者:  Salameh, Ala A. M.;  Gamiz-Fortis, Sonia R.;  Castro-Diez, Yolanda;  Abu Hammad, Ahmad;  Jesus Esteban-Parra, Maria
收藏  |  浏览/下载:14/0  |  提交时间:2020/02/17
extreme temperature indices  Levant region  teleconnection indices  trends  
Observed Changes in Extreme Temperature over the Global Land Based on a Newly Developed Station Daily Dataset 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (24) : 8489-8509
作者:  Zhang, Panfeng;  Ren, Guoyu;  Xu, Yan;  Wang, Xiaolan L.;  Qin, Yun;  Sun, Xiubao;  Ren, Yuyu
收藏  |  浏览/下载:23/0  |  提交时间:2020/02/17
Extreme events  Climate change  Climate variability  Indices  Temperature  Trends  
Quantifying Stratospheric Temperature Signals and Climate Imprints From Post-2000 Volcanic Eruptions 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (21) : 12486-12494
作者:  Stocker, Matthias;  Ladstaedter, Florian;  Wilhelmsen, Hallgeir;  Steiner, Andrea K.
收藏  |  浏览/下载:23/0  |  提交时间:2020/02/17
volcanic signals  stratospheric temperature  temperature trends  satellite observations  
Elevation-dependent warming of maximum air temperature in Nepal during 1976-2015 期刊论文
ATMOSPHERIC RESEARCH, 2019, 228: 261-269
作者:  Thakuri, Sudeep;  Dahal, Suchana;  Shrestha, Dibas;  Guyennon, Nicolas;  Romano, Emanuele;  Colomboe, Nicola;  Salerno, Franco
收藏  |  浏览/下载:19/0  |  提交时间:2019/11/27
Temperature trends  Elevation-dependent warming  Nepal  Maximum temperature  Diurnal temperature range  Himalaya  
Attribution of Recent Trends in Temperature Extremes over China: Role of Changes in Anthropogenic Aerosol Emissions over Asia 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (21) : 7539-7560
作者:  Chen, Wei;  Dong, Buwen;  Wilcox, Laura;  Luo, Feifei;  Dunstone, Nick;  Highwood, Eleanor J.
收藏  |  浏览/下载:24/0  |  提交时间:2019/11/27
Extreme events  Anthropogenic effects  Surface temperature  Trends  Aerosol-cloud interaction  
Long-term changes in precipitation phase in Europe in cold half year 期刊论文
ATMOSPHERIC RESEARCH, 2019, 227: 79-88
作者:  Hyncica, Martin;  Huth, Radan
收藏  |  浏览/下载:62/0  |  提交时间:2019/11/27
Precipitation phase  Trends  Temperature  Europe  Climate change