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New method can predict summer rainfall in the Southwest months in advance 新闻
来源平台:National Center of Atmospheric Research. 发布日期:2022
作者:  admin
收藏  |  浏览/下载:11/0  |  提交时间:2022/06/24
Better forecasts, enhanced national security 新闻
来源平台:National Center of Atmospheric Research. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:14/0  |  提交时间:2022/01/14
Drought and heat wave experts available to explain research and potential impacts 新闻
来源平台:National Center of Atmospheric Research. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:39/0  |  提交时间:2021/07/26
Monsoon has limited impact on Colorado mountain streamflow 新闻
来源平台:National Center of Atmospheric Research. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:12/0  |  提交时间:2021/02/17
Millennial-scale hydroclimate control of tropical soil carbon storage 期刊论文
NATURE, 2020, 581 (7806) : 63-+
作者:  Lam, Tommy Tsan-Yuk;  Jia, Na;  Zhang, Ya-Wei;  Shum, Marcus Ho-Hin;  Jiang, Jia-Fu;  Zhu, Hua-Chen;  Tong, Yi-Gang;  Shi, Yong-Xia;  Ni, Xue-Bing;  Liao, Yun-Shi;  Li, Wen-Juan;  Jiang, Bao-Gui;  Wei, Wei;  Yuan, Ting-Ting;  Zheng, Kui;  Cui, Xiao-Ming;  Li, Jie;  Pei, Guang-Qian
收藏  |  浏览/下载:25/0  |  提交时间:2020/05/13

Over the past 18,000 years, the residence time and amount of soil carbon stored in the Ganges-Brahmaputra basin have been controlled by the intensity of Indian Summer Monsoon rainfall, with greater carbon destabilization during wetter, warmer conditions.


The storage of organic carbon in the terrestrial biosphere directly affects atmospheric concentrations of carbon dioxide over a wide range of timescales. Within the terrestrial biosphere, the magnitude of carbon storage can vary in response to environmental perturbations such as changing temperature or hydroclimate(1), potentially generating feedback on the atmospheric inventory of carbon dioxide. Although temperature controls the storage of soil organic carbon at mid and high latitudes(2,3), hydroclimate may be the dominant driver of soil carbon persistence in the tropics(4,5)  however, the sensitivity of tropical soil carbon turnover to large-scale hydroclimate variability remains poorly understood. Here we show that changes in Indian Summer Monsoon rainfall have controlled the residence time of soil carbon in the Ganges-Brahmaputra basin over the past 18,000 years. Comparison of radiocarbon ages of bulk organic carbon and terrestrial higher-plant biomarkers with co-located palaeohydrological records(6) reveals a negative relationship between monsoon rainfall and soil organic carbon stocks on a millennial timescale. Across the deglaciation period, a depletion of basin-wide soil carbon stocks was triggered by increasing rainfall and associated enhanced soil respiration rates. Our results suggest that future hydroclimate changes in tropical regions are likely to accelerate soil carbon destabilization, further increasing atmospheric carbon dioxide concentrations.


  
Officials break ground on NCAR research aviation facility 新闻
来源平台:National Center of Atmospheric Research. 发布日期:2020
作者:  admin
收藏  |  浏览/下载:20/0  |  提交时间:2020/06/16
Twofold expansion of the Indo-Pacific warm pool warps the MJO life cycle 期刊论文
Nature, 2019, 575: 647-651
作者:  M. K. Roxy;  Panini Dasgupta;  Michael J. McPhaden;  Tamaki Suematsu;  Chidong Zhang;  Daehyun Kim
收藏  |  浏览/下载:7/0  |  提交时间:2020/04/16
Severe haze in northern China: A synergy of anthropogenic emissions and atmospheric processes 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (18) : 8657-8666
作者:  An, Zhisheng;  Huang, Ru-Jin;  Zhang, Renyi;  Tie, Xuexi;  Li, Guohui;  Cao, Junji;  Zhou, Weijian;  Shi, Zhengguo;  Han, Yongming;  Gu, Zhaolin;  Ji, Yuemeng
收藏  |  浏览/下载:11/0  |  提交时间:2019/11/27
severe haze  synergetic effects  anthropogenic emission  atmospheric chemistry  climate change  
Resolving seasonal rainfall changes in the Middle East during the last interglacial period 期刊论文
Proceedings of the National Academy of Sciences of the United States of America, 2019, 116 (50) : 24985-24990
作者:  Ian J. Orland;  Feng He;  Miryam Bar-Matthews;  Guangshan Chen;  Avner Ayalon;  and John E. Kutzbach
收藏  |  浏览/下载:6/0  |  提交时间:2020/04/16
paleoclimate  seasonal-resolution  oxygen isotopes  data-model comparison  
East Asian hydroclimate modulated by the position of the westerlies during Termination I 期刊论文
SCIENCE, 2018, 362 (6414) : 580-+
作者:  Zhang, Hongbin;  Griffiths, Michael L.;  Chiang, John C. H.;  Kong, Wenwen;  Wu, Shitou;  Atwood, Alyssa;  Huang, Junhua;  Cheng, Hai;  Ning, Youfeng;  Xie, Shucheng
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/27