Article
Green & Sustainable Science & Technology
Aslak Einbu, Kai Hjarbo, Anders Brunsvik, Bernd Wittgens
Summary: A novel concept for online monitoring of nitrosamines and other critical trace gas analytes in amine absorber emissions has been demonstrated and successfully tested, showing potential for application in industrial monitoring systems. The improved design and prototype measurement method exhibit high capture efficiency for analytes, with the potential of significantly reducing costs in plant operation.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Chemistry, Physical
Ibon Alkorta, John M. C. Plane, Jose Elguero, Juan Z. Davalos, A. Ulises Acuna, Alfonso Saiz-Lopez
Summary: This study theoretically investigates the reaction of the main nighttime atmospheric oxidant, the nitrate radical (NO3), with five alkyl halides. It finds that the most favorable reaction is hydrogen atom transfer. The reactions are classified into two groups based on the number of hydrogen atoms in the halon molecules. The results indicate that the chemical lifetime of the alkyl halides would not be substantially affected by nitrate radical reactions, even in NO3-polluted atmospheric conditions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Food Science & Technology
Bozena Bukowska, Piotr Duchnowicz, Tugba Boyunegmez Tumer, Jaromir Michalowicz, Anita Krokosz
Summary: Food quality and composition have a significant impact on human health. Harmful substances like heavy metals, pesticides, mycotoxins, and certain compounds formed during food processing can enter our bodies through food. These substances can lead to the formation of DNA adducts, which may result in mutations and the development of cancer. This paper provides an overview of precancerogens in various food products, their interaction with DNA, and the biological consequences of adduct formation. It also discusses strategies for reducing the levels of these contaminants in food.
Article
Chemistry, Multidisciplinary
Eun Jeong Seo, Hyocheol Jung, Ji-Eun Jeong, Sang-Ho Lee, Jin Chul Kim, Dong Yeon Kim, Seungju Kim, Kyu Cheol Lee, Young Il Park
Summary: Using o-imino isourea, three photo- and thermal dual-responsive radical initiators were developed and synthesized. These initiators showed improved absorption properties by adding an aromatic ring. Among them, BnphDCC exhibited exceptional photoinitiation rate and DicyheDCC showed rapid thermal initiation. Additionally, CyhephDCC and BnphDCC demonstrated potential for a photo- and heat dual-curing system.
Article
Environmental Sciences
Yuhao Yan, Shanshan Wang, Jian Zhu, Yanlin Guo, Guiqian Tang, Baoxian Liu, Xinxin An, Yuesi Wang, Bin Zhou
Summary: The study in Beijing's nocturnal boundary layer reveals the significant impact of NO3 on atmospheric chemistry, with NO3 mixing ratios increasing with height and different lifetimes at various altitudes. The factors influencing NO3 production vary depending on altitude, with NO2 sensitivity at higher altitudes and O-3 sensitivity near the ground.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Organic
Jiaxing Chen, Yongzhuo Xu, Wen Shao, Jianhua Ji, Boqiang Wang, Muyang Yang, Guojiang Mao, Fuhong Xiao, Guo-Jun Deng
Summary: A Pd-catalyzed C-O cross-coupling reaction was reported, which allows for the synthesis of highly congested hydroxylamines with an α-quaternary carbon center without cleavage of the N-O bond. This strategy shows high chemoselectivity, broad substrate scope, and excellent functional group tolerance, and has been demonstrated by pharmaceutical derivatization and postcatalytic modifications.
Article
Chemistry, Organic
Gopal Rana, Abhishek Kar, Sandip Kundal, Dulal Musib, Umasish Jana
Summary: In this study, a new method for the synthesis of substituted 3-acylindoles using DDQ as a catalyst is reported. The method involves the regioselective oxo-functionalization of C-3 alkyl-/aryllidine indolines using catalytic DDQ in combination with Fe(NO3)3 center dot 9H2O and molecular oxygen as co-catalysts. The method is general and offers high yields with varieties of functional groups tolerance. Furthermore, molecular docking studies demonstrate the potential of the synthesized ligands to inhibit the RdRp complex of SARS-CoV-2.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Biochemical Research Methods
Amanda R. Bubas, Evan Perez, Luke J. Metzler, Scott D. Rissler, Michael J. Van Stipdonk
Summary: Electrospray ionization (ESI) is used to generate gas-phase uranyl complexes for tandem mass spectrometry studies. Experimental and DFT calculations show dissociation of nitrate ligands leads to interesting product ions, with O-2 and NO2 being eliminated from the complexes.
JOURNAL OF MASS SPECTROMETRY
(2021)
Article
Chemistry, Multidisciplinary
Dmitry A. Gulyaev, Michael S. Klenov, Aleksandr M. Churakov, Yurii A. Strelenko, Ivan V. Fedyanin, David B. Lempert, Ekaterina K. Kosareva, Tatiana S. Kon'kova, Yurii N. Matyushin, Vladimir A. Tartakovsky
Summary: A series of substituted furazans were synthesized and characterized for their thermal stability, density, and oxygen balance. These compounds show potential for use in solid composite propellant formulations, offering higher specific impulse compared to traditional compounds.
Article
Chemistry, Multidisciplinary
Eloise Colson, Julie Andrez, Ali Dabbous, Fabrice Denes, Vincent Maurel, Jean-Marie Mouesca, Philippe Renaud
Summary: A mild and simple synthesis method using visible-light photoredox catalysis is reported in this study, which provides valuable bicyclic alkaloid skeletons with high yields and high diastereoselectivity from readily available starting materials. This method is of great significance for medicinal chemistry research.
COMMUNICATIONS CHEMISTRY
(2022)
Article
Chemistry, Organic
Karu Ramesh, Hun Young Kim, Kyungsoo Oh
Summary: Secondary nitroalkanes can undergo oxygen-mediated nitro-nitrite isomerization, making them versatile N-nitrosating agents under aerobic conditions. A phase-transfer catalysis system using KSeCN and TBAI has been developed to take advantage of this phenomenon, enabling the tandem diazotization and azo coupling with nitroalkanes as well as N-nitrosation of amines. This strategy provides a safe alternative to aryl diazonium salts and allows for the facile synthesis of areneazo-2-(2-nitro)propane derivatives.
Article
Chemistry, Multidisciplinary
Yani Zheng, Yin Dai, Junqiang Hong, Huizhu Fan, Qing Zhang, Wei Jiang, Wei Xu, Jianwen Fei, Junli Hong
Summary: In this study, a magnetic molecularly imprinted polymer (MMIP) functionalized with dendritic nanoclusters was synthesized to selectively recognize the major carcinogen NNK. The resulting MMIPs exhibited high adsorption capacity, fast binding kinetics, and good selectivity for trace amounts of NNK. A rapid, low-cost, and efficient method for detecting NNK in tobacco products was established.
Article
Chemistry, Organic
Lingyun Yang, Yangfei Huang, Weijie Yu, Lijia Fan, Tao Wang, Junkai Fu
Summary: Organic carbamates are important structures in both organic chemistry and industry, but the synthesis of hydroxamic acid-based carbamates has received less attention due to the nucleophilicity of both O and N atoms in hydroxamic acids. In this study, a copper-catalyzed oxidative coupling reaction of quinazoline-3-oxides and formamides was reported for the efficient synthesis of O-quinazolinic carbamates. The protocol is practical, and involves simple starting materials and easy operation.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Food Science & Technology
Helena Vasconcelos, Jose M. M. M. de Almeida, Ana Matias, Cristina Saraiva, Pedro A. S. Jorge, Luis C. C. Coelho
Summary: Biogenic amines (BAs) are food contaminants that can be precursors of nitrosamines, which are linked to carcinogenic and mutagenic activity. Advances have been made in analytical techniques and sample treatments for the better and faster detection of BAs in various foods.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Gen Li, Yuzuru Kanda, Seung Youn Hong, Alexander T. Radosevich
Summary: An organophosphorus-catalyzed C-N bond-forming reductive coupling of nitroalkanes with arylboronic acids and esters has been reported. The method exhibits excellent chemoselectivity for the nitro/boronic acid substrate pair, facilitating the synthesis of functionally-rich N-(hetero)arylamines. The identification of a sterically reduced phosphetane catalyst enables the productive coupling in the P(III)/P(V)=O redox manifold, by affecting post-rate-limiting steps and avoiding deleterious side-paths.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Allergy
Dubravka Smiljkovic, Harald Herrmann, Irina Sadovnik, Susanne Gamperl, Daniela Berger, Gabriele Stefanzl, Gregor Eisenwort, Gregor Hoermann, Sonja Kopanja, Yulia Dorofeeva, Margarete Focke-Tejkl, Peter Jaksch, Konrad Hoetzenecker, Zsolt Szepfalusi, Rudolf Valenta, Michel Arock, Peter Valent
Summary: Siglec-6 is identified as a surface antigen specifically expressed on human MC and basophils. Its expression is dynamically regulated and varies depending on cell types and activation factors. Understanding the expression changes of Siglec-6 provides insights into the function of MC and basophils in allergic reactions.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2023)
Article
Oncology
Matthias Moll, Harald Herrmann, Alexandru Zaharie, Gregor Goldner
Summary: This study describes a local radio-oncologic treatment for patients with prostate cancer metastasized to either the lymph nodes or distant regions. Results showed that patients with distant metastases had significantly worse outcomes compared to patients with lymph node metastases.
STRAHLENTHERAPIE UND ONKOLOGIE
(2023)
Article
Biochemistry & Molecular Biology
Yannick Lichterfeld, Laura Kalinski, Sarah Schunk, Theresa Schmakeit, Sebastian Feles, Timo Frett, Harald Herrmann, Ruth Hemmersbach, Christian Liemersdorf
Summary: Neuronal activity plays a crucial role in behavior, and disturbances in synaptic signals can lead to neurological disorders. This study investigates the impact of hypergravity on astrocyte reactivity and reveals that hypergravity reduces the spreading rates, migration velocities, and stellation of astrocytes. Additionally, cytoskeletal remodeling and altered cell structure are observed under hypergravity conditions. The findings could contribute to the development of pharmacological interventions for enhancing neuronal regeneration.
Article
Biophysics
Lovis Schween, Norbert Muecke, Stephanie Portet, Wolfgang H. Goldmann, Harald Herrmann, Ben Fabry
Summary: Vimentin is a highly charged intermediate filament protein that undergoes lateral and longitudinal assembly processes, which are accelerated by increasing salt concentration.
BIOPHYSICAL JOURNAL
(2022)
Article
Biology
Richard Gerum, Elham Mirzahossein, Mar Eroles, Jennifer Elsterer, Astrid Mainka, Andreas Bauer, Selina Sonntag, Alexander Winterl, Johannes Bartl, Lena Fischer, Shada Abuhattum, Ruchi Goswami, Salvatore Girardo, Jochen Guck, Stefan Schruefer, Nadine Stroehlein, Mojtaba Nosratlo, Harald Herrmann, Dorothea Schultheis, Felix Rico, Sebastian Johannes Mueller, Stephan Gekle, Ben Fabry
Summary: This study presents a high-throughput, simple, and low-cost microfluidic method to quantitatively measure the elastic and viscous moduli of individual cells. By measuring cell deformation and rotation frequency, the frequency-dependent viscoelastic properties of cells can be determined, revealing the influence of cell cycle and physical interactions between different cell structures.
Article
Oncology
Florian Kriwanek, Leo Ulbrich, Wolfgang Lechner, Carola Luetgendorf-Caucig, Stefan Konrad, Cora Waldstein, Harald Herrmann, Dietmar Georg, Joachim Widder, Tatjana Traub-Weidinger, Ivo Rausch
Summary: Differences in tumor segmentations between radiation oncologists can cause uncertainty in radiation therapy planning. This study investigated the use of additional somatostatin receptor PET imaging to reduce this variability in the delineation of meningioma. The study also assessed the usability of a threshold-based approach for lesion delineation. The results showed that adding PET information significantly reduced inter observer variability, but the threshold-based approach had only moderate agreement with radiation oncologists.
Article
Engineering, Electrical & Electronic
Alessandro Trenti, Martin Achleitner, Florian Prawits, Bernhard Schrenk, Hauke Conradi, Moritz Kleinert, Alfonso Incoronato, Francesco Zanetto, Franco Zappa, Ilaria Di Luch, Ozan Cirkinoglu, Xaveer Leijtens, Antonio Bonardi, Cedric Bruynsteen, Xin Yin, Christian Kiessler, Harald Herrmann, Christine Silberhorn, Mathieu Bozzio, Philip Walther, Hannah C. Thiel, Gregor Weihs, Hannes Huebel
Summary: This article presents the results of the Quantum Technology Flagship project UNIQORN in the field of integrated photonics for quantum communication applications. Different integration platforms, including indium phosphide, polymer, and CMOS-compatible silicon platforms, were used to manufacture components and sub-systems for quantum communication devices. The indium phosphide platform was used to produce a transmitter chip for quantum key distribution, while the polymer platform was utilized for engineering non-classical light sources. Additionally, a quantum random number generator and a transimpedance amplifier based on gallium arsenide high electron mobility transistors were also fabricated.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Hematology
Daniel Ivanov, Jelena D. Milosevic Feenstra, Irina Sadovnik, Harald Herrmann, Barbara Peter, Michael Willmann, Georg Greiner, Katharina Slavnitsch, Emir Hadzijusufovic, Thomas Ruelicke, Maik Dahlhoff, Gregor Hoermann, Sigrid Machherndl-Spandl, Gregor Eisenwort, Michael Fillitz, Thamer Sliwa, Maria-Theresa Krauth, Peter Bettelheim, Wolfgang R. Sperr, Elisabeth Koller, Michael Pfeilstoecker, Heinz Gisslinger, Felix Keil, Robert Kralovics, Peter Valent
Summary: Myeloproliferative neoplasms (MPN) are characterized by uncontrolled expansion of myeloid cells, disease-related mutations in certain driver-genes including JAK2, CALR, and MPL, and a substantial risk to progress to secondary acute myeloid leukemia (sAML). The phenotype of putative CD34(+)/CD38(-) stem cells and CD34(+)/CD38(+) progenitor cells in MPN were established. MPN stem cells display a unique phenotype, including cytokine receptors, immune checkpoint molecules, and other clinically relevant target antigens. The disease-initiating capacity of putative MPN stem cells was confirmed in NSGS mice. Phenotypic characterization of neoplastic stem cells in MPN and sAML should facilitate their enrichment and the development of stem cell-eradicating (curative) therapies.
AMERICAN JOURNAL OF HEMATOLOGY
(2023)
Article
Otorhinolaryngology
Christopher Paschen, Matthias Moll, Gabriela Altorjai, Manfred Hecking, Thorsten Fuereder, Joachim Widder, Harald Herrmann
Summary: Compared to conventional hydration (CH), the use of mannitol to shorten hydration time (SHM) can reduce the incidence of acute kidney injury (AKI) in patients with head and neck squamous cell carcinoma undergoing chemoradiation. In addition, higher cumulative cisplatin doses can be achieved with SHM. Female patients are at higher risk of AKI and receive lower cumulative cisplatin doses.
HEAD AND NECK-JOURNAL FOR THE SCIENCES AND SPECIALTIES OF THE HEAD AND NECK
(2023)
Article
Optics
Silia Babel, Laura Bollmers, Marcello Massaro, Kai Hong Luo, Michael Stefszky, Federico Pegoraro, Philip Held, Harald Herrmann, Christof Eigner, Benjamin Brecht, Laura Padberg, Christine Silberhorn
Summary: Interference between single photons is crucial for various quantum optics experiments and applications in quantum technologies like communication and computation. Using lithium niobate on insulator (LNOI) as a new material platform for integrated quantum optics allows for operation at telecommunication wavelengths and integration of setups for improved stability, compactness, and scalability. By implementing a Hong-Ou-Mandel (HOM) interference in LNOI directional coupler, we achieve a high raw HOM visibility of (93.5 ± 0.7)%, establishing the foundation for advanced quantum experiments in LNOI.
Article
Optics
C. H. R. I. S. T. I. A. N. KIEssLER, H. A. U. K. E. Conradi, M. O. R. I. T. Z. Kleinert, V. I. K. T. O. R. Quiring, H. A. R. A. L. D. Herrmann, C. H. R. I. S. T. I. N. E. Silberhorn
Summary: A chip-size fully integrated fiber-coupled heralded single photon source (HSPS) module based on a hybrid integration of a nonlinear lithium niobate waveguide into a polymer board is presented. Photon pairs at 810 nm (signal) and 1550 nm (idler) are generated via parametric down-conversion pumped at 532 nm in the LiNbO3 waveguide. The module has a size of (2 x 1) cm2 and is fully fiber-coupled with one pump input fiber and two output fibers, achieving a heralded second-order correlation function of g(2) h = 0.05 with a heralding efficiency of & eta;h = 3.5% at low pump powers.
Article
Optics
Renato Domeneguetti, Michael Stefszky, Harald Herrmann, Christine Silberhorn, Ulrik L. Andersen, Jonas S. Neergaard-Nielsen, Tobias Gehring
Summary: This study presents a guided setup for single-mode squeezing on integrated titanium-indiffused periodically poled nonlinear resonators. By using single-mode fibers, a continuous-wave laser beam is delivered and the squeezed field is collected, with up to -3.17(9) dB of useful squeezing available in fibers. The generated squeezed light was applied in a fiber-based phase sensing experiment, showing a quantum enhancement in the signal-to-noise ratio of 0.35 dB. The investigation also reveals that photorefraction can cause system instabilities at high powers.
Article
Quantum Science & Technology
Matteo Santandrea, Kai-Hong Luo, Michael Stefszky, Jan Sperling, Harald Herrmann, Benjamin Brecht, Christine Silberhorn
Summary: The paper investigates the performance of lossy SU(1,1) interferometers for single-photon pairs and examines the information contained in single counts and coincidences at the output. The classical Fisher information (FI) of both single and coincidence events is derived and studied as a function of internal and external losses. It is found that, in the absence of external losses, the FI of coincidence events is always higher or equal to that of single events. However, with external losses, the FI of single events can surpass that of coincidences. Additionally, coincidence measurement can help mitigate the effect of internal losses in the absence of external losses. Finally, when internal losses are above 50%, SU(1,1) interferometers outperform classical SU(2) interferometers.
QUANTUM SCIENCE AND TECHNOLOGY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Kristina Bertl, Sophie Livia Kogelnik, Edmund Kukla, Harald Herrmann, Steffen Schneider, Gabriela Altorjai, Andreas Stavropoulos
Summary: The study aims to investigate the oral health-related standard of care in HNC treatment across the EU. The findings revealed significant variations in dental assessment and preventive dentistry routines among different regions. However, including dental professionals in interdisciplinary treatment teams and providing dental treatment within the same hospital appear to improve the standard of care.
Review
Hematology
Peter Valent, Irina Sadovnik, Barbara Peter, Daniel Ivanov, Axel Schulenburg, Emir Hadzijusufovic, Michael Willmann, Thomas Ruelicke, Harald Herrmann, Werner Rabitsch, Heidrun Karlic, Karoline V. Gleixner, Wolfgang R. Sperr, Gregor Hoermann, Maik Dahlhoff, Michael Pfeilstoecker, Felix Keil, Thomas Lion, Thomas W. Grunt
Summary: The Vienna Cancer Stem Cell Club (VCSCC) was established in 2002 to support research on cancer stem cells and translate it into clinical applications. Over the years, the VCSCC has made significant contributions in the field of hematopoietic malignancies and leukemic stem cell research, organizing international conferences and discussions.
EXPERT REVIEW OF HEMATOLOGY
(2023)
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
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)
Article
Meteorology & Atmospheric Sciences
Chenxi Liao, Wenhua Gao, Lanzhi Tang, Chengyin Li
Summary: Based on ERA5 data, this study analyzed the characteristics of four hydrometeors and their relationship with precipitation intensity in central eastern China and the northwest Pacific Ocean. The results show that stratiform precipitation is dominated by ice processes, while convective precipitation has comparable contributions from water and ice processes.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Hsiang-Yu Huang, Sheng-Hsiang Wang, William K. M. Lau, Shih-Yu Simon Wang, Arlindo M. da Silva
Summary: This study presents a diagnostic analysis of the interannual variation of regional climate and its impact on biomass burning aerosol emissions in peninsular Southeast Asia (PSEA). It identifies four climatic factors governing the emission and transport of PSEA biomass burning aerosols and reveals a significant correlation with the El Nin similar to o-Southern Oscillation (ENSO). The results contribute to a better understanding and improved model simulations of aerosol-climate interactions in South and Southeast Asian monsoon regions.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Deniz H. Diren-Ustuen, Yurdanur S. Unal, Simge Irem Bilgen, Cemre Yuruk Sonuc, Sahar Sodoudi, Caner Guney, Ahmet Ozgur Dogru, Selahattin Incecik
Summary: This is the first comprehensive study to examine how urbanization affects the microclimate of Istanbul using the urban climate model MUKLIMO_3. The findings suggest that changing the albedo of roofs and implementing green-roofs can significantly reduce air temperatures in urban areas.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Yetong Li, Yan Xia, Fei Xie, Yingying Yan
Summary: Surface ozone, a major air pollutant, is influenced by stratosphere-troposphere exchange (STE) which contributes to both the decrease and increase of surface ozone in the Southern and Northern Hemispheres, respectively. Additionally, global warming is expected to worsen surface ozone pollution in the future.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Na Li, Ping Zhao, Changyan Zhou
Summary: In this study, the daily sensible and latent heat fluxes in the Tibetan Plateau are estimated using the maximum entropy production model. The results show good performance of the model and reveal the spatial distribution and trends of surface heat fluxes in the region.
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
Chongxun Mo, Xingbi Lei, Xixi Mo, Ruli Ruan, Gang Tang, Lingguang Li, Guikai Sun, Changhao Jiang
Summary: Reliable precipitation information is crucial for scientific and operational applications. Open-access gridded precipitation products (OGPPs) are important sources due to their continuous spatiotemporal coverage. This study proposes a methodology to comprehensively compare the accuracies and stabilities of ten different OGPPs, particularly in mountainous basins. The results show high accuracy but unstable performance of all OGPPs, with multi-source fusion-type products offering better stability and accuracy. Multi-source weighted-ensemble precipitation and climate prediction center morphing method products exhibit the best comprehensive performance.
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
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
Wogu Zhong, Zhiwei Wu
Summary: Significant phase shifts in winter surface air temperature (SAT) anomalies have occurred in East Asia in recent years, leading to detrimental effects on socio-economic activities. In this study, the fourth principal mode of month-to-month SAT variations over EA in winter was identified, representing subseasonal SAT reversals over the mid-high latitudes of EA during late winter. The formation of this mode is accompanied by stratospheric temperature anomalies over eastern Siberia-Alaska in January.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Weiqian Ji, Leiku Yang, Xinyao Tian, Muhammad Bilal, Xin Pei, Yu Zheng, Xiaofeng Lu, Xiaoqian Cheng
Summary: This study systematically evaluated the AOD products of the DB and MAIAC algorithms based on MODIS over bright surfaces, and investigated the underestimation of AOD affected by various factors. The results indicated that the MAIAC products performed better than DB, and the C6.1 MAIAC showed slight improvement compared to C6.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Tao Wang, Xiaohua Gou, Xuejia Wang, Hongwen Liu, Fei Xie
Summary: This study finds that the meridional position of subtropical jet anomalies has shifted equatorward in both the Northern Hemisphere and Southern Hemisphere since the 1960s due to the influence of ENSO. The changes in tropical SST anomalies associated with ENSO contribute to this equatorward shift.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Alireza Ghaderi Bafti, Arman Ahmadi, Ali Abbasi, Hamid Kamangir, Sadegh Jamali, Hossein Hashemi
Summary: Actual evapotranspiration (ETa) plays a crucial role in the water and energy cycles of the earth. This study develops an automated deep learning model for accurate estimation of ETa using image processing, architectural design, and hyper-parameter tuning. The proposed model shows promising results in different climatic regions, highlighting its potential for enhanced atmospheric research.
ATMOSPHERIC RESEARCH
(2024)
