Article
Geosciences, Multidisciplinary
Lei Wang, Zhiheng Du, Zhiqiang Wei, Wei Ouyang, Damien T. Maher, Qian Xu, Cunde Xiao
Summary: The concentrations of CH4 and CO2 under ice in winter were 3-4 orders of magnitude higher than those in summer, and increased with the depth of the thermokarst lakes and ponds. The study suggested that CH4 and CO2 accumulation in winter should be considered when evaluating annual carbon budgets in thermokarst lakes and ponds on the Tibetan Plateau.
Article
Multidisciplinary Sciences
Guibiao Yang, Zhihu Zheng, Benjamin W. Abbott, David Olefeldt, Christian Knoblauch, Yutong Song, Luyao Kang, Shuqi Qin, Yunfeng Peng, Yuanhe Yang
Summary: This study provides insights into methane emissions from thermokarst lakes in high-altitude permafrost regions. The findings show that thermokarst lakes have high methane emissions during the ice-free period, with ebullition being the primary emission pathway. The study also highlights the importance of methanogenic genes in regulating methane fluxes.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Florian Ritterbusch, Lide Tian, Ji-Qiang Gu, Wei Jiang, Zheng-Tian Lu, Lili Shao, Ming -Xing Tang, Guo-Min Yang, Meng-Jie Zhang, Lei Zhao
Summary: Ice cores from alpine glaciers provide unique archives of past climate conditions. A reliable chronology for these ice cores has been lacking, but this study successfully used radiometric Ar-39 dating to construct a chronology covering the past 1,300 years. Advances in Ar-39 analysis allowed for a twofold increase in the upper age limit of dating, and measuring Kr-85 helped quantify and correct modern air contamination. This study demonstrates the potential for using ice cores from nonpolar glaciers to recover climate records of the Common Era.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Environmental Sciences
Ke Liu, Chaomin Wang, Shugui Hou, Shuang-Ye Wu, Hongxi Pang, Wangbin Zhang, Yetang Wang, Margit Schwikowski, Theo M. Jenk, Xiang Zou, Jinhai Yu, Chunlei An, Jing Song
Summary: This study found that the concentration of rBC in the Chongce ice cap of the West Kunlun Mountains in the western Tibetan Plateau has been increasing since the 1980s. Unlike similar records from European ice cores, the increase in rBC concentrations in this region was significant. Analysis of atmospheric circulation and backward trajectories suggested that the former USSR, the Middle East, and South Asia were the most likely source regions of rBC deposited at the Chongce ice cap. High concentrations of rBC were associated with drought-induced biomass burning in the source regions.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Shengli Yang, Yuanlong Luo, Qiong Li, Weiming Liu, Zixuan Chen, Li Liu, Xiaojing Liu
Summary: The Tibetan Plateau is identified as a significant dust source, with research indicating that the eastern TP loess primarily originates from the TP interior, based on similar elemental characteristics to surface sediments on the plateau.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Tiancai Zhou, Ge Hou, Jian Sun, Ning Zong, Peili Shi
Summary: This study revealed the contrasting ecological strategies of different plant functional groups (sedges, grasses, and forbs) in alpine meadows on the Tibetan Plateau along a degradation gradient, and their impact on leaf traits and competitive performance of secondary forbs during degradation. The results showed that the response of plant species to decreasing available resources could lead to niche expansion of secondary forbs and a decrease in diversity in degraded alpine meadows.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
Linan Guo, Hongxing Zheng, Yanhong Wu, Lanxin Fan, Mengxuan Wen, Junsheng Li, Fangfang Zhang, Liping Zhu, Bing Zhang
Summary: Lake surface water temperature (LSWT) is a critical physical property and indicator of climate change in the aquatic ecosystem. This study presents a comprehensive dataset of daily LSWT for 160 lakes across the Tibetan Plateau, combining satellite-based observation and modeling. The dataset reveals a significant increase in annual LSWT from 1978 to 2017, with a higher warming rate in winter than in summer.
EARTH SYSTEM SCIENCE DATA
(2022)
Article
Environmental Sciences
Xiang Zou, Shugui Hou, Shuangye Wu, Hongxi Pang, Ke Liu, Wangbin Zhang, Jinhai Yu, Jing Song, Renhui Huang, Yaping Liu
Summary: This study presents an analysis of the Zangser Kangri ice core, providing a record of ammonium and nitrate concentrations over the past millennium. The results show that the variation of nitrogen species in the ice core is mainly driven by dust activities and biogenic emissions. Furthermore, seasonal air mass backward trajectories and wind fields indicate that the transport of nitrogen species is influenced by the westerly and the South Asia summer monsoon.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Na Yang, Jingran Zhang, Yun Cai, Yuye Feng, Linhai Yang, Hongyi Cheng, Hao Long
Summary: This study presents a new sand dune accumulation record in the southeast Qilian Mountains, which provides insights into the late glacial and Holocene moisture variation. The results show that the climate was dry during the late glacial and early Holocene, peaked in the middle Holocene, and then became relatively dry in the late Holocene. The regional comparison suggests that the moisture variation pattern in the NE Tibetan Plateau is likely influenced by the changes in East Asian summer monsoon precipitation.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Meteorology & Atmospheric Sciences
Lili Shao, Lide Tian, Zhongyin Cai, Cheng Wang, Yao Li
Summary: The study reveals that the interannual variations in d-excess of ice cores from the central Tibetan Plateau are influenced by atmospheric circulation and temperature in the tropical Pacific region, with weak correlations to local meteorological parameters.
Article
Environmental Sciences
Yi Wang, Jian Sun, Tien Ming Lee
Summary: This study used a linear piecewise quantile regression to explore the effect of altitude on ecosystem multifunctionality (EMF) and investigated the relationship between ecosystem functions and environmental factors along the altitudinal gradient. The results showed a changepoint in EMF at an altitude of approximately 3900 m, with distinct patterns in low- and high-altitude regions. Water availability primarily influenced the EMF in low-altitude areas, while water-heat and phenological conditions regulated the EMF in high-altitude areas.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Meng Li, Xianzhou Zhang, Jianshuang Wu, Qiannan Ding, Ben Niu, Yongtao He
Summary: In recent years, human activity intensity on alpine grasslands of the Tibetan Plateau has decreased by 16.1%, possibly due to recent ecological conservation policies, especially reductions in livestock numbers. The study found that grasslands in different ecozones have varying responses to human disturbances.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Meteorology & Atmospheric Sciences
Cheng Wang, Lide Tian, Zhongyin Cai, Lili Shao, Ju Huang
Summary: This study examines the spatiotemporal variations and anthropogenic influences on atmospheric ammonium deposition on the Tibetan Plateau. Ice core records from the Qiangtang glacier reveal a significant increase in ammonium concentrations after the 1950s, attributed to enhanced agricultural emissions. However, the decrease in ammonium concentrations after 1990 can be attributed to the weakening of westerlies.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Meteorology & Atmospheric Sciences
Cheng Wang, Lide Tian, Zhongyin Cai, Lili Shao, Ju Huang
Summary: The analysis of the Qiangtang ice core in the central Tibetan Plateau reveals that ammonium concentrations were mainly influenced by agricultural emissions from South and Central Asia in the late 20th century, resulting in an increasing trend after the 1950s. However, after 1990, despite continuing anthropogenic emissions, the decrease in ammonium concentrations can be attributed to the weakening of the westerlies.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Geosciences, Multidisciplinary
Wenfeng Chen, Tandong Yao, Guoqing Zhang, R. Iestyn Woolway, Wei Yang, Fenglin Xu, Tao Zhou
Summary: During the extreme warming period, surface temperatures in glacial regions of the Tibetan Plateau have increased faster than non-glacial areas, and the duration and intensity of glacier surface heatwaves have significantly increased. These changes may pose potential threats to the sustainability of glacier water resources and increase the risk of glacier related hazards.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Engineering, Civil
Lide Tian, Wusheng Yu, Paul F. Schuster, Rong Wen, Zhongyin Cai, Di Wang, Lili Shao, Jiangpeng Cui, Xiaoyu Guo
JOURNAL OF HYDROLOGY
(2020)
Article
Engineering, Civil
Congjian Sun, Wei Chen, Yaning Chen, Zhongyin Cai
JOURNAL OF HYDROLOGY
(2020)
Article
Environmental Sciences
Zhengjie Li, Meredith G. Hastings, Wendell W. Walters, Lide Tian, Steven C. Clemens, Linlin Song, Lili Shao, Yunting Fang
ENVIRONMENT INTERNATIONAL
(2020)
Article
Environmental Sciences
Jiangpeng Cui, Lide Tian, Zhongwang Wei, Chris Huntingford, Pei Wang, Zhongyin Cai, Ning Ma, Lixin Wang
WATER RESOURCES RESEARCH
(2020)
Article
Engineering, Civil
Yike Li, Lide Tian, Gabriel J. Bowen, Qinglong Wu, Wenlei Luo, Yiliang Chen, Di Wang, Lili Shao, Zhongyin Cai, Jianshuang Tao
Summary: Water stable isotopes can serve as a natural tracer to evaluate the effects of input water isotopes and surface evaporation on lake water systems. Studies on Fuxian Lake in southwest China show that lake water isotopes are significantly enriched in heavy isotopes due to evapoconcentration, indicating a stable isotopic equilibrium state in the lake.
JOURNAL OF HYDROLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
Lili Shao, Lide Tian, Zhongyin Cai, Cheng Wang, Yao Li
Summary: The study reveals that the interannual variations in d-excess of ice cores from the central Tibetan Plateau are influenced by atmospheric circulation and temperature in the tropical Pacific region, with weak correlations to local meteorological parameters.
Article
Engineering, Civil
Jiaojiao Han, Lide Tian, Zhongyin Cai, Wei Ren, Weiwei Liu, Jin Li, Jiangrong Tai
Summary: This study quantified the partitioning of evapotranspiration in a Pinus yunnanensis forest ecosystem in southwest China. The results showed that plant transpiration is the main component of evapotranspiration, and soil water content is a key factor influencing the seasonal variation of evapotranspiration.
JOURNAL OF HYDROLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Cheng Wang, Lide Tian, Zhongyin Cai, Lili Shao, Ju Huang
Summary: This study examines the spatiotemporal variations and anthropogenic influences on atmospheric ammonium deposition on the Tibetan Plateau. Ice core records from the Qiangtang glacier reveal a significant increase in ammonium concentrations after the 1950s, attributed to enhanced agricultural emissions. However, the decrease in ammonium concentrations after 1990 can be attributed to the weakening of westerlies.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Meteorology & Atmospheric Sciences
Xuejie Wang, Lide Tian, Hongming Yan, Jiangyu Mao, Zhongyin Cai, Di Wang, Yiliang Cheng, Feng Liu
Summary: This study analyzes how the MJO and BSISO modulate precipitation delta O-18 and vapor delta O-18 over the Asian monsoon region and the equatorial region. The results show consistent intra-seasonal variations between the ISO and rain delta O-18. The MJO and BSISO lead to eastward and northeastward propagation of delta O-18 intra-seasonal oscillations, respectively. Rating: 8 out of 10.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Environmental Sciences
Zhongyin Cai, Sabine Griessbach, Lars Hoffmann
Summary: Monitoring and modeling volcanic plumes are crucial for understanding their impact on climate and practical concerns. In this study, a Lagrangian transport model was used to estimate the SO2 injection from the Raikoke volcano eruption in June 2019. The results showed that 2.1 +/- 0.2 Tg SO2 was injected, with a lifetime of about 13 to 17 days. The study demonstrated the potential of using satellite retrievals and transport simulations to improve the estimation of volcanic eruption emissions.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Geosciences, Multidisciplinary
Lars Hoffmann, Paul F. Baumeister, Zhongyin Cai, Jan Clemens, Sabine Griessbach, Gebhard Guenther, Yi Heng, Mingzhao Liu, Kaveh Haghighi Mood, Olaf Stein, Nicole Thomas, Baerbel Vogel, Xue Wu, Ling Zou
Summary: Lagrangian models are important tools for studying atmospheric transport processes, but large-scale simulations can be computationally expensive. This study assessed the potential of using GPUs to accelerate Lagrangian transport simulations and found that it significantly improved the speed, particularly for near-real-time applications.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2022)
Article
Geography, Physical
Shiyuan Shi, Jiangfeng Shi, Chenxi Xu, Steven W. Leavitt, William E. Wright, Zhongyin Cai, Hongyan Zhang, Xuguang Sun, Yesi Zhao, Xiaoqi Ma, Weijie Zhang, Huayu Lu
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2020)
