Article
Engineering, Electrical & Electronic
Chunli Li, Jun Yang, Yuqing Zhang
Summary: This study analyzed the spatial and temporal changes of the urban ecological environment in Dalian, China from 2010 to 2022 using remote sensing data. It found that urbanization has had a substantial impact on the urban natural environment and has altered the urban land use structure.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2023)
Article
Environmental Studies
Jinkwan Son, Taegeun Kwon
Summary: The research highlights the problems related to water that arise from the increasing impermeable sidewalk area in urban areas. Through water balance analysis and estimation of runoff coefficients, the study shows that vegetation areas in urban parks significantly affect rainfall-runoff, infiltration, and evapotranspiration. It suggests the reduction of impermeable sidewalk areas and the expansion of waterways, swamps, and gravel sidewalk areas in order to contribute to hydrological control in urban land use.
Article
Environmental Studies
Young-Jae Kim, Ryun Jung Lee, Taehwa Lee, Yongchul Shin
Summary: This study investigated the relationship between land cover, natural environment, and urban vacancies in Austin, Texas. The results suggest that green infrastructure interacts differently with residential and business vacancies. Low-income communities lack green infrastructure compared with the rest of the city and are exposed to more urban vacancies in their neighborhoods.
Article
Multidisciplinary Sciences
Eleftheria Kontou, Noreen McDonald
Summary: The study analyzes the impact of ridesourcing on road safety outcomes in Travis County, Texas, finding a negative correlation between ridesourcing use and road crashes, injuries, and DWI offenses, but not road fatalities. The research method enriches existing work by providing a data-rich approach for assessing the impacts of ridesourcing use on transportation system safety, potentially serving as a template for future analyses in other cities.
Article
Geosciences, Multidisciplinary
Buruk Kitachew Wossenyeleh, Kaleb Asnake Worku, Boud Verbeiren, Marijke Huysmans
Summary: This study investigates drought propagation in the hydrological cycle, finding that drought events in the groundwater system are less severe and numerous, with a rapid response to hydrological stresses. Not all meteorological droughts result in groundwater drought, and this drought propagation effect is observed in the wetland.
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2021)
Article
Environmental Sciences
Siri Karunaratne, Darshana Athukorala, Yuji Murayama, Takehiro Morimoto
Summary: Rapid urban growth has led to substantial environmental changes, including the surface urban heat island (UHI) effect. This study evaluated the UHI effect in Kathmandu, Nepal, and explored its relationship with land use and land surface temperature. The findings provide valuable information for sustainable urban planning and landscape design in mountain valley cities.
Article
Environmental Sciences
Mitiku Badasa Moisa, Indale Niguse Dejene, Zenebe Reta Roba, Dessalegn Obsi Gemeda
Summary: The increase in urban heat island is caused by the replacement of vegetation cover by impervious surfaces. A study in Addis Ababa City, Ethiopia, examined the relationship between urban heat islands, urban thermal comfort, and land use and land cover change using geospatial technologies. Results showed that the rapid conversion of land use and cover change has led to an increase in mean land surface temperature and a decrease in urban thermal comfort. It is suggested that raising community awareness for environmental conservation through the establishment of urban green spaces can reduce the urban heat island effect and increase comfort in the city.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Environmental Studies
Shunhua Bai, Junfeng Jiao, Yefu Chen, Jiani Guo
Summary: Shared micromobility programs, like dockless electric scooter-share, are popular in U.S. cities. Studies show that E-scooter use is closely related to dining, shopping, and recreational activities, with higher correlation in downtown and university areas. However, the use of E-scooters does not significantly increase overall visitation activities.
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
(2021)
Article
Chemistry, Analytical
Clayton C. Hudson, Ryan Lester, Tracy N. Tipping, Derek A. Haas
Summary: We report on a cryogenic gas irradiation facility in the 1.1 MW TRIGA reactor at The University of Texas at Austin. The system is designed for producing radioactive xenon and argon for environmental studies, and it can be used for producing other gaseous radiotracers as well. The system design includes modeling accident scenarios to ensure safe operation and minimize the risk of radioactive material release. The predicted activity of Xe-127 at the end of a 30-day irradiation of one liter of Xe-126 is 0.9 Ci, as calculated using the SCALE code.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Environmental Sciences
Taotao Jin, Wei Liu, Yu Wang, Ming Zhao, Yao Fu, Yulin Dong, Tianyu Luo, Hang Fu, Qiong Wang
Summary: This study clarifies the impact of urbanization on glomalin-related soil protein (GRSP) and its influencing factors, confirms the significant contribution of GRSP to soil organic carbon (SOC) sequestration, and provides a new perspective for improving urban greenspace soil quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Studies
John Stehlin, Will Payne
Summary: The rapid rise of digital platform-based transportation services has been transforming urban mobility. The introduction of micromobility platforms, such as dockless bicycles and scooters, has gained significant investment in the United States. However, these platforms lack proper planning and funding, and rely on inexpensive GPS-connected vehicles stored in public spaces. Despite their flexible and low-carbon image, existing micromobility platforms in the United States tend to exploit rather than address the inadequacies of urban transport.
Article
Environmental Sciences
Abolfazl Nazari Giglou, Rouzbeh Ross Nazari, Farhad Jazaei, Maryam Karimi
Summary: This study assessed the contribution of two adjacent watersheds with low and high urban development to the recharge process of the Memphis aquifer in central Jackson, Tennessee. The results showed that, per unit area, the watershed with low urban development contributed more to recharge and riverbed leakage compared to the watershed with high urban development. However, in terms of total recharge and riverbed leakage, the watershed with high urban development contributed more.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Water Resources
Puthan Veettil Razi Sadath, Lakshmanan Elango, Mariappan Rinisha Kartheeshwari, Lingaiah Keerthan
Summary: Land use/cover changes have significant impacts on the environment and society. This study used a hybrid model to predict the changes in land use/cover of Chennai city and its surrounding area, and evaluated their impact on groundwater recharge potential. The results showed a rapid increase in built-up areas, a corresponding decrease in agricultural lands, and a continuous reduction in the area occupied by water bodies. Effective policies are needed to enhance groundwater recharge.
URBAN WATER JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Tao Tao, Du Wang, Ganping Huang, Liqing Lin, Chenhao Wu, Qixin Xu, Jun Zhao, Guangren Qian
Summary: Rapid urbanization leads to increased surface runoff, and the classification of landscape (land use/land cover) in the model is a methodological issue in studying land use effects. This study used the L-THIA model to simulate the change in annual surface runoff during the rapid urbanization in Shanghai since 1965. Two landscape scenarios based on land uses and pervious/impervious surfaces were compared, showing almost no difference in the results. It was suggested that the simplified scenario based on pervious/impervious surfaces is workable and efficient, and the land use scenario may not be necessary. The study also found a clear linear relationship between the percentage of impervious surfaces and surface runoff.
Article
Remote Sensing
Yuan Tao, Wanzeng Liu, Jun Chen, Jingxiang Gao, Ran Li, Xiuli Zhu
Summary: In this study, an automatic and high-performance multi-level classification approach was proposed to accurately map China's annual impervious surface dataset (CAID) from 1992 to 2021 using Landsat time-series images. The approach combined time-series similarity, spectral feature, and logical reasoning to construct a multi-level classification method for mapping impervious surface. The validated results showed that CAID achieved high accuracy and outperformed existing impervious surface products in terms of extraction accuracy.
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2023)