Article
Environmental Sciences
Zhiling Zhou, Liping Zhang, Jie Chen, Dunxian She, Gangsheng Wang, Qin Zhang, Jun Xia, Yanjun Zhang
Summary: Drought risk assessment is important for identifying high-risk areas and understanding the impact of drought on society and economy. This study projected future global drought risk under different scenarios and analyzed the population and GDP exposed to high risk. The results show that drought risk will increase in the future, with significant increases in South Asia, the Mediterranean, East Asia, Southeast Asia, and Central America. A large percentage of the population and economy are exposed to high drought risk. The findings provide valuable information for policymakers to develop adaptive measures against drought.
Article
Meteorology & Atmospheric Sciences
Junhong Guo, Xiuquan Wang, Chan Xiao, Lvliu Liu, Tian Wang, Chunming Shen
Summary: This study investigates the downscaling performance of PRECIS, a climate downscaling model, to different global climate models (GCMs) for the first time. The results show that PRECIS can provide improved simulations of temperature over China and presents a superior downscaling performance compared to its driving GCM.
Article
Green & Sustainable Science & Technology
Charles Gyamfi, Kwaku A. Adjei, Ebenezer Boakye, Geophrey K. Anornu, Julius M. Ndambuki
Summary: This study investigates perturbations in extreme precipitation characteristics over the Volta Basin and its subdomains for the early-21st and mid-twenty-first centuries under RCPs 4.5 and 8.5. Seven climate indices were used to examine future extreme precipitation features. The results show declining trends in extreme precipitation events, with dominant declines in the Sahel and Soudano-Sahel regions and some increases in the Guinea Coast. Changes in precipitation events have the potential to cause alternating drought or flood events.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Meteorology & Atmospheric Sciences
Vedaste Iyakaremye, Gang Zeng, Guwei Zhang
Summary: The study found that under 1.5 and 2.0 degrees C global warming scenarios, different regions of Africa will experience varying degrees of extreme temperature changes, with greater warming in the Sahara and Southern Africa. Raising the target temperature to 1.5 degrees C instead of 2.0 degrees C can reduce the intensity, frequency and duration of extreme temperatures.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
Lianlian Xu, Aihui Wang, Wei Yu, Song Yang
Summary: This study quantifies the hot spots of extreme precipitation based on changes in intensity, frequency, and variability, finding that the Sahara Desert emerges as a hot spot of extreme precipitation change in different warming levels. Model spread in extreme precipitation indices is large, especially in the tail of the precipitation distribution, indicating significant uncertainty in CMIP5 GCMs.
WEATHER AND CLIMATE EXTREMES
(2021)
Article
Environmental Sciences
Tianqi Bai, Like Fan, Genxin Song, Hongquan Song, Xutong Ru, Yaobin Wang, Haopeng Zhang, Ruiqi Min, Weijiao Wang
Summary: In order to understand the potential impact of land use and cover change (LUCC) on future regional climate projections, this study investigated the regional climate response to LUCC under different climate scenarios. Using the Weather Research and Forecasting (WRF) model, the study simulated the impacts of future land use/cover changes on the climate of Zhengzhou City, China, based on different SSP-RCP scenarios derived from CMIP6. The results showed an overall increase in temperature by 2060 compared to 2030, and variations in precipitation patterns.
Article
Astronomy & Astrophysics
Dongli Fan, Zhiyu Jiang, Zhan Tian, Guangtao Dong, Laixiang Sun
Summary: The study indicates that future climate change will improve the agroclimatic conditions for growing Chinese Medicinal Yam in semi-arid North China, leading to increase in yield and production area.
EARTH AND SPACE SCIENCE
(2021)
Article
Meteorology & Atmospheric Sciences
Donglin Guo, Ying Zhang, Xuejie Gao, Nick Pepin, Jianqi Sun
Summary: This study used four different global climate models to drive regional climate models to project changes in extreme high and low temperatures in China. The results show an overall increase in maximum temperatures, warm days, warm spell duration, and minimum temperatures, while cold nights decrease. The Tibetan Plateau and adjacent regions show greater sensitivity to extreme temperature changes.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Environmental Sciences
Wojciech Krzto, Edward Walusiak, Elzbieta Wilk-Wozniak
Summary: Construction of dams and transformation of rivers have negative impacts on river ecosystems and adjacent habitats, as well as pose new threats to global surface freshwater resources. Projected climate changes will alter thermal regimes of dam reservoir ecosystems, affecting their functioning. Our study reveals that dam reservoir locations will experience a significant increase in mean annual temperature, especially those in high latitudes. The consequences of temperature increase will have unfavorable effects on various ecosystems, including dam reservoirs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Xiaodan Guan, Zhaokui Gao, Jianping Huang, Chenyu Cao, Kaiwei Zhu, Jiamin Wang
Summary: Regional anthropogenic warming caused stronger and shorter cold events during the winter of 2020-21, particularly in East Asia. Unlike previous cold events, these extreme cold events were a result of meridional circulation changes due to anthropogenic warming. The study highlights the significant role of anthropogenic factors in cold events.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Meteorology & Atmospheric Sciences
Raphael Hebert, Shaun Lovejoy, Bruno Tremblay
Summary: This study makes global temperature projections based on historical data and a Climate Response Function, estimating model and forcing parameters through Bayesian inference. The 2100 projections show that to keep the warming below 1.5 K, emissions must undergo cuts similar to RCP 2.6.
Article
Environmental Sciences
Shokoufeh Salimi, Miklas Scholz
Summary: Water purification is essential to wetlands, but climate change may have varying effects on peatlands and constructed wetlands. Warmer conditions could lead to different responses in terms of water quality, with constructed wetlands benefiting from a higher purification function under extreme climate scenarios while peatlands may deteriorate.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Geosciences, Multidisciplinary
Jieming Chou, Weixing Zhao, Jiangnan Li, Yuan Xu, Fan Yang, Mingyang Sun, Yuanmeng Li
Summary: Scientific predictions of critical global temperature increases and assessments of associated changes in extreme climate events using CMIP6 model outputs show that global mean temperatures are projected to rise by 1.5 degrees C/2.0 degrees C by approximately 2030/2049 under certain scenarios. Specific climate events such as warm days, rice heat damage, and extreme precipitation are expected to increase significantly under 2.0 degrees C of global warming.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Environmental Sciences
Zhihong Jiang, Qiyao Hou, Tim Li, Yongxiao Liang, Laurent Li
Summary: Stabilized global 1.5 degrees C warming leads to significant increase in precipitation in southeast China compared to the transient scenario, primarily due to circulation changes and land-ocean thermal contrast. This enhanced heating over India induces a Kelvin-wave response with an anomalous anticyclone that contributes to the westward shift of the western North Pacific Subtropical High, strengthening precipitation in southeast China.
Article
Meteorology & Atmospheric Sciences
Ailiyaer Aihaiti, Zhihong Jiang, Yun Li, Li Tao, Lianhua Zhu, Jianwei Zhang
Summary: This study investigates the changes of summer extreme precipitation in China and determines the impacts of global mean temperature (GMT) and Interdecadal Pacific Oscillation (IPO). The results show that GMT significantly affects extreme precipitation in the middle and lower reaches of the Yangtze River Basin and its south, while IPO has a significant impact on North China and Southwest China.