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Patterns and trends of Northern Hemisphere snow mass from 1980 to 2018 期刊论文
NATURE, 2020, 581 (7808) : 294-+
作者:  Ibrahim, Nizar;  Maganuco, Simone;  Dal Sasso, Cristiano;  Fabbri, Matteo;  Auditore, Marco;  Bindellini, Gabriele;  Martill, David M.;  Zouhri, Samir;  Mattarelli, Diego A.;  Unwin, David M.;  Wiemann, Jasmina;  Bonadonna, Davide;  Amane, Ayoub;  Jakubczak, Juliana;  Joger, Ulrich;  Lauder, George V.;  Pierce, Stephanie E.
收藏  |  浏览/下载:37/0  |  提交时间:2020/05/25

Warming surface temperatures have driven a substantial reduction in the extent and duration of Northern Hemisphere snow cover(1-3). These changes in snow cover affect Earth'  s climate system via the surface energy budget, and influence freshwater resources across a large proportion of the Northern Hemisphere(4-6). In contrast to snow extent, reliable quantitative knowledge on seasonal snow mass and its trend is lacking(7-9). Here we use the new GlobSnow 3.0 dataset to show that the 1980-2018 annual maximum snow mass in the Northern Hemisphere was, on average, 3,062 +/- 35 billion tonnes (gigatonnes). Our quantification is for March (the month that most closely corresponds to peak snow mass), covers non-alpine regions above 40 degrees N and, crucially, includes a bias correction based on in-field snow observations. We compare our GlobSnow 3.0 estimates with three independent estimates of snow mass, each with and without the bias correction. Across the four datasets, the bias correction decreased the range from 2,433-3,380 gigatonnes (mean 2,867) to 2,846-3,062 gigatonnes (mean 2,938)-a reduction in uncertainty from 33% to 7.4%. On the basis of our bias-corrected GlobSnow 3.0 estimates, we find different continental trends over the 39-year satellite record. For example, snow mass decreased by 46 gigatonnes per decade across North America but had a negligible trend across Eurasia  both continents exhibit high regional variability. Our results enable a better estimation of the role of seasonal snow mass in Earth'  s energy, water and carbon budgets.


Applying a bias correction to a state-of-the-art dataset covering non-alpine regions of the Northern Hemisphere and to three other datasets yields a more constrained quantification of snow mass in March from 1980 to 2018.


  
Extratropical cyclones over East Asia: climatology, seasonal cycle, and long-term trend 期刊论文
CLIMATE DYNAMICS, 2019
作者:  Lee, Jaeyeon;  Son, Seok-Woo;  Cho, Hyeong-Oh;  Kim, Junsu;  Cha, Dong-Hyun;  Gyakum, John R.;  Chen, Deliang
收藏  |  浏览/下载:20/0  |  提交时间:2020/02/17
Extratropical cyclone (ETC)  East Asia  Lagrangian tracking algorithm  Climatology  Seasonal cycle  Long-term trend  
Changing characteristics of meteorological droughts in Nigeria during 1901-2010 期刊论文
ATMOSPHERIC RESEARCH, 2019, 223: 60-73
作者:  Shiru, Mohammed Sanusi;  Shahid, Shamsuddin;  Chung, Eun-Sung;  Alias, Noraliani
收藏  |  浏览/下载:25/0  |  提交时间:2019/11/27
Seasonal droughts  Standardized precipitation evapotranspiration index  Modified Mann-Kendall trend  Climate change  Nigeria  
What were the changing trends of the seasonal and annual aridity indexes in northwestern China during 1961-2015? 期刊论文
ATMOSPHERIC RESEARCH, 2019, 222: 154-162
作者:  Zhao, Haihan;  Pan, Xuebiao;  Wang, Ziwen;  Jiang, Shaojie;  Liang, Lizhong;  Wang, Xiaochen;  Wang, Xiaoxiao
收藏  |  浏览/下载:28/0  |  提交时间:2019/11/26
Aridity index  Northwestern China  Trend analysis  Seasonal  Climate system indicators  
Comparison of methods for extracting annual cycle with changing amplitude in climate series 期刊论文
CLIMATE DYNAMICS, 2019, 52: 5059-5070
作者:  Deng, Qimin;  Fu, Zuntao
收藏  |  浏览/下载:17/0  |  提交时间:2019/11/26
Annual cycle  Fitting sinusoids  Complex demodulation  Ensemble empirical mode decomposition  Nonlinear mode decomposition and seasonal trend decomposition procedure based on loess  Amplitude trend  
Tropopause trend across China from 1979 to 2016: A revisit with updated radiosonde measurements 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (2) : 1117-1127
作者:  Chen, Xinyan;  Guo, Jianping;  Yin, Jinfang;  Zhang, Yong;  Miao, Yucong;  Yun, Yuxing;  Liu, Lin;  Li, Jian;  Xu, Hui;  Hu, Kaixi;  Zhai, Panmao
收藏  |  浏览/下载:30/0  |  提交时间:2019/04/09
lapse rate tropopause  radiosonde  seasonal variation  spatial distribution  trend  
Impacts of climate variability and change on seasonal drought characteristics of Pakistan 期刊论文
ATMOSPHERIC RESEARCH, 2018, 214: 364-374
作者:  Ahmed, Kamal;  Shahid, Shamsuddin;  Nawaz, Nadeem
收藏  |  浏览/下载:20/0  |  提交时间:2019/04/09
Seasonal droughts  Standardized precipitation evapotranspiration index  Modified Mann-Kendall trend  Climate change  Pakistan  
Evaluation of Coupled Model Intercomparison Project Phase 5 historical simulations in the Colorado River basin 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2018, 38 (10) : 3861-3877
作者:  Gautam, Jenita;  Mascaro, Giuseppe
收藏  |  浏览/下载:12/0  |  提交时间:2019/04/09
changing points  Colorado River basin  general circulation models  historical climate simulations  interannual variability  seasonal variability  trend  water balance  
Diurnal and long-term variation of instability indices over a tropical region in India 期刊论文
ATMOSPHERIC RESEARCH, 2018, 207: 145-154
作者:  Chakraborty, Rohit;  Basha, Ghouse;  Ratnam, M. Venkat
收藏  |  浏览/下载:9/0  |  提交时间:2019/04/09
Instability  Radiosonde  Seasonal diurnal variation  Monsoon onset  Long-term trend  
Evaluation of Precipitation From EURO-CORDEX Regional Climate Simulations in a Small-Scale Mediterranean Site 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2018, 123 (3) : 1604-1625
作者:  Mascaro, Giuseppe;  Viola, Francesco;  Deidda, Roberto
收藏  |  浏览/下载:10/0  |  提交时间:2019/04/09
Regional climate models  Precipitation  Interannual variability  Seasonal variability  Trend  Orographic Effect