Article
Engineering, Chemical
Shaamrit Balendra, Akshay Kale, Julie Pongetti, Mohsen Kazemimanesh, Molly Haugen, Lee Weller, Adam Boies
Summary: The measurement of airborne particles is important for detecting and characterising air pollution, emissions, fire detection, occupational and climate impacts. However, current optical particle counters (OPCs) cannot measure ultrafine particles. This study explores the limitations of miniaturising a condensation particle counter (CPC) growth chamber and provides a toolkit for optimising the design of miniaturised CPC-GCs.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Yating Wang, Yiyang Zhang, Zhu Fang, Xinxin Wu
Summary: The research investigates the energy dissipation in particle-wall collision with roughness using the finite element method. The results show that the presence of surface roughness leads to lower viscoelastic dissipation and higher restitution coefficient compared to a smooth surface. The collision time is identified as a key factor in predicting the energy dissipation.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Meteorology & Atmospheric Sciences
Xiaoyang Li, Ryuichi Kawamura, Kimpei Ichiyanagi, Kei Yoshimura
Summary: Meiyu rainfall in the Yangtze River valley in 2020 was influenced by moisture sources from the Indian Ocean, East Asian continent, and South China Sea. The isotopic composition of the rainfall indicated different processes of rainout and evaporation during transport. The rainfall also showed significant intraseasonal variability and could be classified into heavy and light periods based on rainfall amount.
ATMOSPHERIC RESEARCH
(2024)
Article
Geosciences, Multidisciplinary
Chengfang Huang, Ning Li, Zhengtao Zhang, Yuan Liu
Summary: The economic impact of disasters is closely related to regional economic development. China's economic development is conducive to reducing the economic impact of disasters, but regional differences need to be clarified in policy formulation, with reducing indirect impact as a higher priority in more developed areas.
INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION
(2024)
Article
Environmental Sciences
Danyue Zhi, Hepeng Zhao, Yan Chen, Weize Song, Dongdong Song, Yitao Yang
Summary: The configuration of the urban built environment is crucial for sustainability and carbon neutrality. This study employs an interpretive machine learning framework to investigate the heterogeneous impacts of urban morphological features on traffic carbon emissions. The results reveal nonlinear relationships and interactive effects, providing implications for urban planning and carbon emission reduction.
Article
Environmental Sciences
Sajjad Hussain, Muhammad Mubeen, Wajid Nasim, Faisal Mumtaz, Hazem Ghassan Abdo, Raoof Mostafazadeh, Shah Fahad
Summary: This research utilized remote sensing technology to analyze historical trends and predict future changes in land use, land cover, and climate. The findings reveal an increasing built-up area, decreasing vegetation, and rising land surface temperature in the Multan region. This study underscores the importance of remote sensing technology in understanding past and predicting future land transformations and temperature variations, providing valuable insights for decision makers in sustainable land use and climate adaptation.
Article
Environmental Sciences
Dongri Han, Su Yan, Xiumei Sun
Summary: This study examines the impact and mechanism of the Winter Clean Heating Plan for Northern China on air pollution reduction. The research finds that the policy has effectively reduced air pollution emissions in the northern region by 17.3% since its implementation. Economic and urban development factors also play a role in reducing air pollution. The results indicate that the policy has a more significant positive influence on air pollution control in Northwest China's cities and non-provincial capital cities.
Article
Engineering, Chemical
A. Valenzuela, E. Bazo, R. A. Rica, L. Alados-Arboledas, F. J. Olmo-Reyes
Summary: This article introduces a method to measure the extinction cross section of levitated particles using an electrodynamic trap and double-cavity ring down spectroscopy technique, and demonstrates the potential of this method in 1,2,6-hexanetriol particles through simulations and experiments. Unlike traditional methods, this technique provides crucial information about the extinction cross section of sodium chloride particles during dehydration and hydration processes.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Engineering, Chemical
Shadi Yaqoubi, Mohaddese Sokuti, Sahand Mazloum-Ravasan, Kofi Asare-Addo, Hamed Hamishehkar, Ali Nokhodchi
Summary: In this study, a modified version of ultrasonic spray pyrolysis was used to prepare salbutamol sulfate dry powder. The engineered particles showed suitable characteristics for effective drug delivery to the lungs and demonstrated acceptable aerosolization performance. This newly introduced method appears to be capable of producing dry powder formulations of different drugs without the need for surfactants or stabilizers.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Meteorology & Atmospheric Sciences
Oliver Meseguer-Ruiz, Roberto Serrano-Notivoli, Adriana Aranguiz-Acuna, Magdalena Fuentealba, Ignacio Nunez-Hidalgo, Pablo Sarricolea, Rene Gerreaud
Summary: Droughts pose a major environmental challenge for Chile due to its geographical characteristics. Different regions in Chile experience varying levels of precipitation and temperature, resulting in different occurrences and severity of droughts. This study found that different climate modes show correlations with the Standardized Precipitation Index (SPI) and Standardized Precipitation Evaporation Index (SPEI). There are negative drought trends in the north and center of Chile, while positive trends appear in the south. The SPEI shows stronger and more significant negative trends, influenced by the overall warming of the country. Climate modes can be useful for drought prediction and informing public policies.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Ziyi Song, Botao Zhou, Xinping Xu, Zhicong Yin
Summary: This study, based on reanalysis data from 1980 to 2019, reveals that the relationship between autumn sea ice concentration in the Barents-Kara Seas (BKSIC) and subsequent winter North Atlantic Oscillation (NAO) underwent an interdecadal weakening in the early 1990s. The weakening can be attributed to the decrease in the interannual variability of BKSIC, which leads to a discrepancy in the tropospheric warming. In the former period (1980-1993), the decrease in autumn BKSIC enhances tropospheric warming and weakens the circumpolar westerly, resulting in a negative NAO phase. However, in the latter period (1994-2019), the smaller interannual variability of BKSIC weakens its influence on the tropospheric temperature, diluting the relationship with the subsequent winter NAO.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Wenqing Lin, Huopo Chen, Weiqi Wang, Dawei Zhang, Fan Wang, Wuxia Bi
Summary: It is found in this study that anthropogenic activities may significantly contribute to the decrease in snowfall days, light snowfall, and light snowfall days across Eurasia, with greenhouse gas emissions being the main driver. However, detection of human influence is challenging for intense snowfall.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Vittal Hari, Oldrich Rakovec, Wei Zhang, Akash Koppa, Matthew Collins, Rohini Kumar
Summary: This study reveals a significant association between the Atlantic Meridional Mode (AMM) and temperature variability in the eastern European region. Positive AMM phase leads to a significant increase in temperature, while negative phase has the opposite effect. The AMM modulates the temperature through planetary-scale Rossby waves and anomalous anticyclone circulation.
ATMOSPHERIC RESEARCH
(2024)
Article
Engineering, Chemical
Brijal Prajapati, Vishal Dharaiya, Manoranjan Sahu, Chandra Venkatraman, Pratim Biswas, Kajal Yadav, Delwin Pullokaran, Ramya Sunder Raman, Ruqia Bhat, Tanveer Ahmad Najar, Arshid Jehangir
Summary: This study evaluated the performance of a low-cost particulate matter sensor and proposed a physics-based calibration method. The results showed that the physics-based calibration approach performed better compared to statistical models at both observation sites.
JOURNAL OF AEROSOL SCIENCE
(2024)
Article
Meteorology & Atmospheric Sciences
Yu Shi, Oleksandr Evtushevsky, Gennadi Milinevsky, Xiaolong Wang, Andrew Klekociuk, Wei Han, Asen Grytsai, Yuke Wang, Lidong Wang, Bohdan Novosyadlyj, Yulia Andrienko
Summary: The study analyzes the impact of the Arctic major sudden stratospheric warming (SSW) in 2018 on regional cold weather in the northern midlatitudes. The results show that temperature anomalies moved downward and spread to midlatitudes, leading to cooling, and the occurrence of cooling events is related to circulation and waves.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Ajay Gupta, Manoj Kumar Jain, Rajendra Prasad Pandey, Vivek Gupta, Aniruddha Saha
Summary: In this study, the performance of global precipitation products for meteorological drought assessment in six drought zones in India was examined. The results showed that IMERG Final-Run performed best in drought monitoring, while TerraClimate performed poorly. The findings of this study provide support for choosing suitable precipitation datasets for drought risk management and early warnings.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Lois Thomas, Bipin Kumar, Andreas Zuend, Dan Hassan-Barthaux, Suryachandra A. Rao
Summary: This study presents Direct Numerical Simulation (DNS) of turbulent cloud parcels and investigates the impact of turbulence on Cloud Condensation Nuclei (CCN) activation. The results show that turbulent fluctuations can lead to some aerosol particles being in an un-activated state while others become cloud droplets. The study also provides insights into the response of cloud microphysical properties to different background conditions through comparative experiments.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Jingzhuo Wang, Hanbin Zhang, Jing Chen, Guo Deng, Yu Xia
Summary: In this study, a new scale-blending technique was proposed to evaluate the impact of multiscale initial perturbations on the CMA-CPEPS. The results showed that the blended scheme improved the dispersion of dynamical variables and increased the ensemble spread of precipitation, leading to reduced forecast error.
ATMOSPHERIC RESEARCH
(2024)
Article
Environmental Sciences
Song Song, Yiqiang Xiao, Ruoxiang Tu, Shi Yin
Summary: This study investigates the relationship between thermal perception and the psychological restorative benefits of green space exposure. It demonstrates that short-term exposure to urban park grassland and forest in hot and humid areas increases perceived restorativeness and decreases negative emotions. The study highlights the importance of incorporating thermal perception and psychological restoration in the design and management of urban green spaces.
Article
Meteorology & Atmospheric Sciences
Fang Cao, Yi-Xuan Zhang, Yan-Lin Zhang, Wen-Huai Song, Yu-Xian Zhang, Yu-Chi Lin, Chaman Gul, Md. Mozammel Haque
Summary: This study investigates the influences of continental emissions on marine aerosols in the Yellow Sea and Bohai Sea of China. The results show that biomass burning is the major contributor to organic aerosols in these marine atmospheres.
ATMOSPHERIC RESEARCH
(2024)
