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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:18/0  |  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.


  
Defining frigid winter illuminates its loss across seasonally snow-covered areas of eastern North America 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (3)
作者:  Contosta, Alexandra R.;  Casson, Nora J.;  Nelson, Sarah J.;  Garlick, Sarah
收藏  |  浏览/下载:11/0  |  提交时间:2020/07/02
frigid winter  climate change  seasons  temperature  snow cover  
Can Convection-Permitting Modeling Provide Decent Precipitation for Offline High-Resolution Snowpack Simulations Over Mountains? 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019
作者:  He, Cenlin;  Chen, Fei;  Barlage, Michael;  Liu, Changhai;  Newman, Andrew;  Tang, Wenfu;  Ikeda, Kyoko;  Rasmussen, Roy
收藏  |  浏览/下载:8/0  |  提交时间:2020/02/17
precipitation  convection-permitting  snowpack simulation  snow depth  snow cover fraction  snow water equivalent  
Variations in the Frequency of Winter Extreme Cold Days in Northern China and Possible Causalities 期刊论文
JOURNAL OF CLIMATE, 2019, 32 (23) : 8127-8141
作者:  Yuan, Chaoxia;  Li, Wenmao
收藏  |  浏览/下载:13/0  |  提交时间:2020/02/17
ENSO  Extreme events  Snow cover  Temperature  Model evaluation  performance  Arctic Oscillation  
Intraseasonal variability of Tibetan Plateau snow cover 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019
作者:  Li, Wenkai;  Qiu, Bo;  Guo, Weidong;  Zhu, Zhiwei;  Hsu, Pang-Chi
收藏  |  浏览/下载:8/0  |  提交时间:2020/02/17
climatology  intraseasonal variability  multiple time scales  snow cover  Tibetan Plateau  
Interannual linkage between wintertime sea-ice cover variability over the Barents Sea and springtime vegetation over Eurasia 期刊论文
CLIMATE DYNAMICS, 2019, 53: 5637-5652
作者:  Ji, Liuqing;  Fan, Ke
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
Linkage  Winter sea-ice cover  Barents Sea  Eurasian spring NDVI  Snow cover over Eurasia  Ensemble simulation  
The CO2-induced sensible heat changes over the Tibetan Plateau from November to April 期刊论文
CLIMATE DYNAMICS, 2019, 53: 5623-5635
作者:  Qu, Xia;  Huang, Gang;  Zhu, Lihua
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
The Tibetan Plateau  Sensible heat  Surface-air temperature difference  Snow cover  
An improved vegetation emissivity scheme for land surface modeling and its impact on snow cover simulations 期刊论文
CLIMATE DYNAMICS, 2019, 53: 6215-6226
作者:  Ma, Xiaogang;  Jin, Jiming;  Liu, Jian;  Niu, Guo-Yue
收藏  |  浏览/下载:15/0  |  提交时间:2019/11/27
CLM  Vegetation emissivity  Longwave radiation  Solid canopy drips  Snow cover fraction  
Changes in the Impact of the Autumn Tibetan Plateau Snow Cover on the Winter Temperature Over North America in the mid-1990s 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019
作者:  Qian, QiFeng;  Jia, XiaoJing;  Wu, Renguang
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
autumn snow cover  Tibetan Plateau  North America  SAT  unsteady relationship  
Snow cover duration and extent for Great Britain in a changing climate: Altitudinal variations and synoptic-scale influences 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (12) : 4611-4626
作者:  Brown, Iain
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/27
climate change  Great Britain  Lamb weather types  logistic regression  mountains  snow cover  synoptic scale