Article
Meteorology & Atmospheric Sciences
Dashan Wang, Xianwei Wang, Lin Liu, Dagang Wang, Zhenzhong Zeng
Summary: This study quantitatively examines the spatial clustering of precipitation intensity in 130 urban-affected regions over mainland China during 2008-15. The results show that the spatial heterogeneity patterns display diverse distribution and vary with precipitation intensity and urban sizes. Urban signatures in the spatial clustering of precipitation extremes are observed in 28% of cities, mainly occurring in the Haihe River basin, the Yangtze River basin, and the Pearl River basin.
JOURNAL OF HYDROMETEOROLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
Yue Qin, Weilin Liao, Dan LI
Summary: The study improves the Two-Resistance Mechanism (TRM) attribution method to analyze the urban-rural contrast of heat stress. The method can diagnose any heat stress index related to temperature and humidity. The summertime urban-rural contrast of Simplified Wet Bulb Globe Temperature (SWBGT) is primarily caused by evapotranspiration and heat storage release in urban areas. The differences in aerodynamic features in urban-rural areas play both positive and negative roles.
JOURNAL OF CLIMATE
(2023)
Article
Meteorology & Atmospheric Sciences
Jun Ge, Bo Qiu, Bowen Chu, Duzitian Li, Lingling Jiang, Weidan Zhou, Jianping Tang, Weidong Guo
Summary: This study evaluates the performance of three regional climate models in representing the local biophysical effects of afforestation over continental China. The models do a poor job in describing afforestation-induced changes in surface biophysical properties such as albedo and leaf area index, as well as changes in latent and sensible heat fluxes. However, they are generally reasonable in representing the impact of afforestation on temperature.
JOURNAL OF CLIMATE
(2021)
Article
Meteorology & Atmospheric Sciences
Yun Li, Kaicun Wang, Guocan Wu, Yuna Mao
Summary: Since the 1950s, national standard precipitation gauges have been used to measure precipitation at weather stations in China. Precipitation amounts can be significantly underestimated by gauges without a wind fence, and this underestimation is closely related to surface wind speed and precipitation type. Surface wind speed in China has declined in recent decades, leading to a reduction in wind-induced error of observed precipitation and affecting regional and national precipitation trends. The correction of wind-induced error had an important impact on the trend of annual precipitation, as demonstrated by the decrease in the national mean precipitation trend after correction.
JOURNAL OF HYDROMETEOROLOGY
(2023)
Article
Meteorology & Atmospheric Sciences
Chaorong Chen, Jun Ge, Weidong Guo, Yipeng Cao, Yu Liu, Xing Luo, Limei Yang
Summary: This study examines the local and nonlocal effects of afforestation in China and finds that afforestation has a cooling effect on surface temperature due to local effects, but a warming effect due to nonlocal effects. The local cooling effects are mainly attributed to enhanced sensible and latent heat fluxes, as well as decreased downward shortwave radiation. The nonlocal warming effects are mainly caused by changes in atmospheric feedbacks. Despite the unexpected nonlocal warming effect, afforestation in China still has great potential in mitigating climate warming through biophysical processes.
JOURNAL OF CLIMATE
(2022)
Article
Meteorology & Atmospheric Sciences
Quang-van Doan, Shun Kobayashi, Hiroyuki Kusaka, Fei Chen, Cenlin He, Dev Niyogid
Summary: This study investigates the urban effect on extreme precipitation in Lagos, Nigeria and contributes to the global understanding of urban precipitation patterns. The researchers use the Weather Research and Forecasting Model to simulate an extreme rainfall event, comparing results with and without urban representation. They find that urbanization in Lagos reduces evapotranspiration, leading to increased sensible heating and the formation of a heat island effect. This facilitates convergence and moisture transport, creating favorable conditions for extreme rainfall.
JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
(2023)
Article
Environmental Sciences
Sujan Pal, Francina Dominguez, Pablo Bollatti, Steven P. Oncley, Yi Yang, Javier Alvarez, Carlos M. Garcia
Summary: This study investigates the impact of land cover changes from perennial crops to annual soy in central Argentina on water and energy fluxes. Results show differences in evapotranspiration, sensible heat, and soil temperature between soy and alfalfa, with long-term simulations indicating distinct hydrological processes at the two sites. Shifts in land cover are likely linked to observed changes in streamflow and water table depth over time, with a notable increase in the Bowen ratio due to a shift from latent heat to sensible heat partitioning.
WATER RESOURCES RESEARCH
(2021)
Article
Meteorology & Atmospheric Sciences
Pallav Ray, Haochen Tan, Mukul Tewari, James Brownlee, R. S. Ajayamohan, Bradford S. Barrett
Summary: The advection of heat and momentum plays a significant role in the evolution of near-surface temperature and wind in urban areas, with horizontal temperature advection being more important due to larger surface temperature gradients in urban areas. Horizontal advection of zonal and meridional momentum was found to be prominent during peak near-surface wind periods, particularly on the windward side of a city. The representation and influence of land-use patterns via sophisticated urban parameterizations generate locally driven winds that best resemble observations.
JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
(2021)
Article
Water Resources
Vo Ngoc Quynh Tram, Hiroaki Somura, Toshitsugu Moroizumi, Morihiro Maeda
Summary: This study focuses on the upstream Sesan River Basin in the Central Highlands of Vietnam. The research findings suggest that local land-use policies and human activities have significant effects on the downstream aquatic environment, particularly in areas dominated by range land and arable land. Understanding the combination of watershed characteristics, spatial land use, local land-use policies, and agricultural practices is crucial for comprehensive regional land use and water resources management strategies.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Meteorology & Atmospheric Sciences
Eric A. Hendricks, Jason C. Knievel, David S. Nolan
Summary: The simulated winds within the urban canopy of landfalling tropical cyclones are more sensitive to the representation of the urban canopy layers than the planetary boundary layers in numerical weather prediction models. The lack of urban sheltered measurements leads to uncertainty in the magnitude of urban environment biases.
MONTHLY WEATHER REVIEW
(2021)
Article
Meteorology & Atmospheric Sciences
Jiangfeng Wei, Yimeng Liu, Haishan Chen
Summary: By conducting regional climate model experiments, it was found that atmospheric boundary layer (ABL) winds have an impact on intraseasonal climate variabilities in East Asia. The research revealed that climates became less similar in humid southern China but more similar in semiarid northern China/Mongolia (NCM) after ABL wind perturbations. The contrasting responses of local climate to ABL wind perturbations were mainly due to different land-atmosphere interactions in these two regions.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Meteorology & Atmospheric Sciences
Christopher M. Rozoffx, David S. Nolan, George H. Bryan, Eric A. Hendricks, Jason C. Knievel
Summary: This study explores the impacts of urban morphology on TC-strength winds and boundary layer turbulence in landfalling TCs. The results show that buildings generate distinct, intricate flow patterns and significantly affect turbulent kinetic energy. This research can help improve surface and boundary layer models for better predictions of the impacts of landfalling tropical cyclones.
JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
(2023)
Article
Meteorology & Atmospheric Sciences
Jie Li, Zhiwei Han, Jian Wu, Qin'geng Wang, Jiawei Li, Jun Tao
Summary: This study applied a regional air quality model system to investigate the variations of biogenic volatile organic compound (BVOC) emissions and secondary organic aerosols (SOA) over China during 2001-2018. The results showed evident land use changes during this period, and significant increases in BVOC emissions and BSOA concentrations were observed. The changes in land use and leaf area index were identified as the main driving factors for the increases in BVOC emissions and BSOA concentrations.
ATMOSPHERIC RESEARCH
(2022)
Article
Meteorology & Atmospheric Sciences
Olivia Martius, Kathrin Wehrli, Marco Rohrer
Summary: Model experiments show that soil moisture anomalies in Australia during the Southern Hemisphere summer can influence upper-level Rossby wave patterns, resulting in temperature anomalies and convective rainfall differences in the region, which in turn affect circulation patterns and storm tracks.
JOURNAL OF CLIMATE
(2021)
Article
Meteorology & Atmospheric Sciences
Kaiqi Fu, Kaicun Wang
Summary: The flash drought and heat wave compound event in Southwest China during the summer of 2013 had significant socio-economic impacts. This study used a high-resolution index and air parcel backward tracking method to analyze the causes of this event. It was found that drought soil and land-atmosphere coupling played key roles in the occurrence of the flash drought, while mesoscale atmospheric circulation primarily contributed through horizontal advection.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Biodiversity Conservation
Yan Li, Kaiyu Guan, Bin Peng, Trenton E. Franz, Brian Wardlow, Ming Pan
GLOBAL CHANGE BIOLOGY
(2020)
Article
Ecology
Ning Pan, Shuai Wang, Yanxu Liu, Yan Li, Feng Xue, Fangli Wei, Haipeng Yu, Bojie Fu
Summary: Drylands are shrinking overall but experiencing expansion in recent years. Precipitation is the dominant factor for aridity in most drylands, however, with global warming, potential evapotranspiration is becoming increasingly influential in arid conditions.
JOURNAL OF ARID ENVIRONMENTS
(2021)
Article
Agronomy
Yijia Wang, Bojie Fu, Yanxu Liu, Yan Li, Xiaoming Feng, Shuai Wang
Summary: The study found that in different elevation intervals of the Tibetan Plateau, the response of vegetation to drought is significantly influenced by land surface temperature and grassland proportion, providing reasonable evidence for understanding the spatial heterogeneity of the alpine ecosystem response to drought.
AGRICULTURAL AND FOREST METEOROLOGY
(2021)
Article
Environmental Sciences
Yingzuo Qin, Yan Li, Ru Xu, Chengcheng Hou, Alona Armstrong, Eviatar Bach, Yang Wang, Bojie Fu
Summary: This study used satellite data to quantify the impacts of wind farms on local climate and vegetation in the United States. The results showed significant warming of nighttime land surface temperature (LST) due to wind farms, while daytime impacts were insignificant. Infrastructure construction led to a decrease in vegetation index around wind farms. The size and distance of wind farms played a role in their impacts.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Ru Xu, Yan Li, Kaiyu Guan, Lei Zhao, Bin Peng, Chiyuan Miao, Bojie Fu
Summary: This study provides a spatial-explicit quantification of maize yield response to precipitation in the contiguous United States and investigates how precipitation response is altered by natural and human factors. The study finds that the responses are highly heterogeneous, with inverted-U, unresponsive, and linear increase being the leading types. The optimal precipitation threshold derived from inverted-U response exhibits considerable spatial variations and is influenced by factors such as temperature and drainage conditions. Irrigation also plays a role in modifying the precipitation response. Furthermore, crop models tend to misrepresent the observed precipitation responses.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
Ru Xu, Yan Li, Adriaan J. Teuling, Lei Zhao, Dominick Spracklen, Luis Garcia-Carreras, Ronny Meier, Liang Chen, Youtong Zheng, Huiqing Lin, Bojie Fu
Summary: This study uses satellite data to demonstrate the contrasting effect of forests on summer cloud cover in different regions, with temperate and boreal forests enhancing clouds and forests in the Amazon, Central Africa, and Southeast US inhibiting clouds. The spatial variation in cloud effects is driven by differences in sensible heat.
NATURE COMMUNICATIONS
(2022)
Article
Environmental Sciences
Hao Jiang, Lisheng Song, Yan Li, Mingguo Ma, Lei Fan
Summary: Global warming-induced increase in drought frequency and severity has negatively impacted forest productivity in Southwest China. This study reveals reduced resilience of the forest to drought, particularly in afforestation areas.
Article
Biodiversity Conservation
Huan Wang, Shijie Yan, Philippe Ciais, Jean-Pierre Wigneron, Laibao Liu, Yan Li, Zheng Fu, Hongliang Ma, Ze Liang, Feili Wei, Yueyao Wang, Shuangcheng Li
Summary: There is still debate about the dominance of vapor pressure deficit (VPD) and soil water content (SWC) in plant water stress. In this study, using statistical methods and extreme gradient boosting models, we found that VPD was more important than SWC for plant water stress. The study also revealed the interaction effect between VPD and SWC, and a threshold effect for VPD stress on gross primary production (GPP) loss.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Environmental Sciences
Chuang Zhao, Claudio O. Stockle, Tina Karimi, Roger Leroy Nelson, Frits K. van Evert, Annette A. Pronk, Anne A. Riddle, Elizabeth Marshall, Rubi Raymundo, Yan Li, Kaiyu Guan, Dave Gustafson, Gerrit Hoogenboom, Xi Wang, Jiahui Cong, Senthold Asseng
Summary: Climate change is expected to reduce potato yields, especially in high-yielding areas, but elevated atmospheric CO2 levels can partially compensate for the decrease. Adaptation measures include planting potatoes earlier to avoid hot summers, and despite higher temperatures, water use by potato crops is predicted to decrease during the shorter growing season.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Biodiversity Conservation
Yan Li, Ru Xu, Kun Yang, Yanxu Liu, Shuai Wang, Sha Zhou, Zhao Yang, Xiaoming Feng, Chunyang He, Zhengjie Xu, Wenwu Zhao
Summary: The ecosystems of the Tibetan Plateau play a vital role in regulating precipitation, with grasslands making the largest contribution. Over the past two decades, increased evapotranspiration in the Tibetan Plateau has led to an increase in precipitation contribution to both the plateau and downwind regions. This study provides quantitative evidence of the precipitation regulation services offered by the Tibetan Plateau ecosystems.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Meteorology & Atmospheric Sciences
Huiqing Lin, Yan Li, Lei Zhao
Summary: Bowen ratio, reflecting the partitioning of sensible and latent heat fluxes, plays a crucial role in land-atmosphere interaction. This study analyzed the spatiotemporal variations of Bowen ratio among 12 vegetation types using FLUXNET observations and compared them with CLM simulations. The results showed that Bowen ratio is influenced by climatic, geographical, and biological factors, with climate factors having the greatest impact. CLM generally reproduced the observed Bowen ratio, but differences were found for certain vegetation types.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Environmental Sciences
Yiqing Liu, Weihang Liu, Yan Li, Tao Ye, Shuo Chen, Zitong Li, Ran Sun
Summary: Understanding the response of crop phenology to climate change is crucial for agricultural adaptation. This study examines the effects of pre-season temperature extremes on rice transplanting dates and reveals the modulation effects of concurrent precipitation extremes. Results show that hot pre-seasons lead to earlier transplanting, but extreme drought offsets this effect. On the other hand, cold pre-seasons cause delays in transplanting, which are exacerbated by extreme precipitation.
Editorial Material
Multidisciplinary Sciences
Yan Li, Shan Sang, Safa Mote, Jorge Rivas, Eugenia Kalnay
Summary: With the recognition of coupled human and natural systems (CHANS), modeling CHANS with two-way feedbacks has become a crucial tool for achieving sustainability. This paper discusses the challenges in CHANS modeling and the opportunities to advance its science and applications in promoting the sustainability of CHANS.
NATIONAL SCIENCE REVIEW
(2023)
Article
Geosciences, Multidisciplinary
Xueyuan Gao, Shunlin Liang, Dongdong Wang, Yan Li, Bin He, Aolin Jia
Summary: By lighting up tropical forests at night, it is possible to increase carbon sequestration, reduce atmospheric CO2, suppress global warming, and increase local temperature and precipitation. However, after stopping the lighting experiment, tropical forests may slowly release carbon.
EARTH SYSTEM DYNAMICS
(2022)
Article
Green & Sustainable Science & Technology
Bojie Fu, Yanxu Liu, Yan Li, Cong Wang, Changjia Li, Wei Jiang, Ting Hua, Wenwu Zhao
Summary: Resources and Environmental Sciences is a multidisciplinary discipline focused on studying the coupled human and natural systems, addressing major resource and environmental issues, promoting interdisciplinary integration and technological innovation, and supporting sustainable development.
GEOGRAPHY AND SUSTAINABILITY
(2021)