Article
Meteorology & Atmospheric Sciences
Amal John, Herve Douville, Aurelien Ribes, Pascal Yiou
Summary: Projected changes in precipitation extremes and their uncertainties are evaluated using an ensemble of global climate models. Results show a robust enhancement of extreme precipitation with most models simulating an increase, although the model spread is overestimated. The study advocates for using multiple single model initial condition ensembles in future projections to better estimate the response of extreme events.
WEATHER AND CLIMATE EXTREMES
(2022)
Article
Environmental Sciences
Hebatallah Mohamed Abdelmoaty, Simon Michael Papalexiou, Chandra Rupa Rajulapati, Amir AghaKouchak
Summary: This study evaluates the performance of CMIP6 models in reproducing the statistical properties of observed annual maxima of daily precipitation using various methods. The results indicate good matching in terms of frequency and magnitude of extremes, but biases exist in terms of mean and variation, with some models performing well.
Article
Meteorology & Atmospheric Sciences
Tianyun Dong, Wenjie Dong
Summary: This study evaluates the performance of CMIP5 and CMIP6 models in simulating extreme precipitation indices over Asia, highlighting significant improvements in CMIP6 models. Models such as HadCM3, EC-Earth3, and ECMWF-IFS demonstrate relatively good performance in simulating extreme precipitation events. Compared to CMIP5, CMIP6 shows reduced dry biases in Southern China and India, as well as improved wet biases in Tibet.
Article
Environmental Sciences
Yiwen Wang, Zhiming Zhang, Zhiyong Zhao, Thomas Sagris, Yang Wang
Summary: Extreme weather events will become more frequent and severe due to climate change, highlighting the urgent need for cities to adapt. Precipitation and waterlogging prediction is crucial for this purpose. Using Beijing as a case study, the study evaluated different models and identified the optimal model using Taylor diagrams and interannual variability scores. The simulation results showed the impact of climate change on future rainfall and waterlogging in urban areas, emphasizing the importance of considering climate change in stormwater management and urban planning.
Article
Environmental Sciences
Yilin Yan, Hao Wang, Guoping Li, Jin Xia, Fei Ge, Qiangyu Zeng, Xinyue Ren, Linyin Tan
Summary: This study reveals that China has experienced frequent extreme precipitation events in recent years, and predicts that the future trends of these events will continue to increase. By utilizing multiple evaluation metrics and machine learning techniques, better results have been obtained compared to traditional methods.
Article
Green & Sustainable Science & Technology
Jian Wang, Fei Xue, Ruiying Jing, Qiaohui Lu, Yilong Huang, Xiang Sun, Wenbo Zhu
Summary: This paper proposes a regenerative argument for sponge city construction from the urban scale towards the watershed scale by strengthening the urban water resilience and sustainability. An innovative framework is established to address urban water issues and human livability via various indicators and interrelations between different water modules. The research findings have implications for shifting the sponge city practice towards linking urban development with watershed ecological conservation.
Article
Geosciences, Multidisciplinary
Leilani Dulguerov, Fiaz Ahmed, J. David Neelin
Summary: This study examines the changes in tropical precipitation clusters under global warming. The results show that both the frequency and intensity of precipitation clusters are projected to increase in the future, with major impacts on coastal regions of the Indian subcontinent and western Pacific islands.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Jingjing Li, Ran Huo, Hua Chen, Ying Zhao, Tianhui Zhao
Summary: The study evaluates the improvement of CMIP6 over CMIP5 in precipitation simulation, finding no overall advantage but regional differences. CMIP6 shows more significant trends compared to CMIP5 in the future, with varying changing rates in different regions. In many areas, the changing rate of CDD in CMIP6 is less than that of CMIP5 under all scenarios.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Meteorology & Atmospheric Sciences
Subharthi Sarkar, Rajib Maity
Summary: This study presents a comprehensive analysis of past and future changes in precipitation extremes in India, revealing that the contribution of frequency dominates over intensity. The study also proposes a new zoning of the Indian mainland, showing varying responses to precipitation extremes in different regions.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Multidisciplinary Sciences
Chala Hailu Sime, Wakjira Takala Dibaba
Summary: Extreme rainfall and hydrological extremes are increasing due to global warming, posing a serious risk to the vulnerable Awash basin in Ethiopia. This study evaluates the performance of CMIP6 models in simulating extreme precipitation and identifies the generalized extreme values distribution as a suitable model. MIROC6, CESM2-WACCM, and Ensemble models perform well, while GFDL-ESM4 and BCC-CSM2-MR models estimate the highest rainfall.
Article
Environmental Sciences
Yutong Yao, Jiake Li, Yishuo Jiang, Guoru Huang
Summary: Climate change is causing more frequent and extreme urban stormwater events, leading to increased flooding. This study focuses on the Xiao Zhai area in China to develop a quantitative method for assessing flood risks and the resilience of urban drainage systems to future stormwater. The analysis shows that future rainfall will be more evenly distributed temporally, but there will be a significant increase in heavy rainfall events. The flood risk caused by future rainfall is higher than historical flood risk, and there is a correlation between flood risk and the resilience of drainage systems. Improving and refining urban drainage systems, as well as rational planning of gray-green rainwater facilities, can enhance resilience to climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Geosciences, Multidisciplinary
Markus G. Donat, Carlos Delgado-Torres, Paolo De Luca, Rashed Mahmood, Pablo Ortega, Francisco J. Doblas-Reyes
Summary: In this study, the accuracy of historical climate simulations contributing to CMIP6 in capturing observed changes in mean and extreme precipitation is evaluated. The CMIP6 simulations skillfully represent observed precipitation changes in large parts of Europe, Asia, northeastern North America, parts of South America, and western Australia, but show a lack of skill in western North America and parts of Africa. Large ensembles can be beneficial to improve simulation accuracy in regions with moderate skill. CMIP6 simulations are regionally skillful in capturing observed trends, but lack skill in regions with negative observed precipitation trends where increases are simulated.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Wenlong Xie, Cheng Sun, Zhongjie Lin
Summary: This study developed an evaluation index system to investigate the evolution of urban form resilience to climate disturbances in Changchun city. The results showed a significant decline in absorption capacity and a dramatic rise in recovery capacity over the past 100 years. The study aims to provide scientific guidance for resilience management in cities.
Article
Meteorology & Atmospheric Sciences
Hassen Babaousmail, Rongtao Hou, Brian Ayugi, Kenny Thiam Choy Lim Kam Sian, Moses Ojara, Richard Mumo, Abdelghani Chehbouni, Victor Ongoma
Summary: This study investigates projected changes in mean and extreme precipitation over the Mediterranean and Sahara regions using global climate model datasets. The results show a reduction in mean precipitation and an increase in dry days by the end of the century, which will worsen droughts and water scarcity in the region.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Environmental Sciences
Xiangmin Li, Taihua Wang, Ziyi Zhou, Jiaping Su, Dawen Yang
Summary: Based on long-term observations, a peak structure exists in the relationship between precipitation and temperature in most regions of China. The scaling rate decreases spatially from southeast to northwest in the wet season, while sub-C-C scaling dominates most regions in the dry season. Mixing precipitation events from different seasons could result in miscalculations of the precipitation-temperature scaling rate. The significant increases in high percentiles of precipitation in southern regions of China during the historical period indicate that the peak structure does not imply an upper limit for precipitation extremes. Our results highlight the importance of considering seasonal characteristics when analyzing the extreme precipitation-temperature relationship in a changing climate.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Chao Mei, Jiahong Liu, Hao Wang, Zhiyong Yang, Xiangyi Ding, Weiwei Shao
SCIENCE OF THE TOTAL ENVIRONMENT
(2018)
Article
Environmental Sciences
Jinjun Zhou, Jiahong Liu, Weiwei Shao, Yingdong Yu, Kun Zhang, Ying Wang, Chao Mei
Article
Energy & Fuels
Yingdong Yu, Jiahong Liu, Ying Wang, Chenyao Xiang, Jinjun Zhou
Article
Engineering, Civil
Lei Huang, Xiang Li, Hongwei Fang, Dongqin Yin, Yuan Si, Jiahua Wei, Jiahong Liu, Xiaoyong Hu, Li Zhang
JOURNAL OF HYDROLOGY
(2019)
Article
Environmental Sciences
Xin Su, Weiwei Shao, Jiahong Liu, Yunzhong Jiang
Article
Environmental Sciences
Xiaoran Fu, Jiahong Liu, Weiwei Shao, Chao Mei, Dong Wang, Wenchang Yan
Article
Environmental Sciences
Jinjun Zhou, Jiahong Liu, Qi Chu, Hao Wang, Weiwei Shao, Zhuoran Luo, Yongxiang Zhang
Summary: Urban evaporation from hardened surfaces is often underestimated, but it plays a significant role in urban water balance and hydrological cycle. Impervious hardened surfaces' evaporation is influenced by rainfall and frost days, while pervious hardened surfaces show continuous and periodic variations.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Environmental Sciences
Dong Wang, Jiahong Liu, Weiwei Shao, Chao Mei, Xin Su, Hao Wang
Summary: The study evaluated and compared the accuracy of downscaled precipitation simulations of CMIP5-MME and CMIP6-MME for the Hanjiang River Basin in China. The results showed that the downscaled precipitation captured spatial and temporal patterns well, but there were slight overestimations and underestimations in certain regions. The downscaled CMIP6-MME performed better than CMIP5-MME in simulating precipitation, especially in reducing biases, except for summer seasons.
Article
Environmental Sciences
Xin Su, Weiwei Shao, Jiahong Liu, Yunzhong Jiang, Kaibo Wang
Summary: In the context of climate change and rapid urbanization, a study was conducted to accurately assess flood disaster losses caused by extreme rainstorm events using various models and methods. The results showed that direct economic losses and affected population percentages were high, with built-up areas being the main disaster zones. The time characteristics of flood disaster losses change with increasing flood hazard severity and return periods.
Article
Environmental Sciences
Chuang Liu, Jiahong Liu, Weiwei Shao, Jiahui Lu, Han Gao
Summary: This study proposes a method for quantifying water evaporation induced by human perspiration and respiration, and applies it to evaluate the evaporation in Beijing. The results show that the greatest volume of evaporation from human occurs in summer, and the least in spring. The total evaporation produced by human is considerable, reaching 5075.2 m(3)/km(2) in the six core districts of Beijing.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Environmental Sciences
Guoyi Li, Jiahong Liu, Weiwei Shao
Summary: An urban flood simulation model based on TELEMAC-2D was constructed and validated using the measured data from two rainstorms. The hazard-vulnerability method was employed for urban flood risk assessment, and the results showed the spatial distribution of flood risk under different rainfall scenarios. GIS technology was used to create risk zoning maps, and the impact of rainfall characteristics on flood risk zoning was analyzed.
Article
Environmental Sciences
Zhuoran Luo, Jiahong Liu, Shanghong Zhang, Weiwei Shao, Jinjun Zhou, Li Zhang, Ruitao Jia
Summary: Precipitation is a critical factor affecting regional water cycles, water ecology, and socioeconomic development. This study analyzed the spatiotemporal evolution of urban rain island effects in China during periods of slow and accelerated urbanization. The combined effects of heat islands and artificial water dissipation were found to be key factors influencing urban precipitation. Artificial water dissipation was found to be an important water vapor source for urban precipitation, particularly during winter months.
Article
Engineering, Civil
Rui Shao, Weiwei Shao, Yicheng Wang
Summary: Vegetation plays an important role in mitigating heat issues and flooding in urban areas, and its effect on water storage capacity was evaluated in four city clusters in China from 2009 to 2018. The study found that the spatial distribution of water storage capacity was influenced by vegetation, and increasing vegetation was necessary to store additional precipitation in high-precipitation years. This study provides a mechanistic understanding of the effects of vegetation change on water consumption in urban ecosystems and quantifies the role of urban ecological planning in urban flood mitigation.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Zhuoran Luo, Jiahong Liu, Shanghong Zhang, Weiwei Shao, Li Zhang
Summary: This study analyzed the changing trends of temperature and precipitation in the Qinghai Lake Basin using model simulations and observation data, and predicted future changes. The results showed an increase in precipitation and runoff compared to the past, with the lake level decreasing and then increasing. In the future, temperature change is expected to be more significant.