Showing 2,741 - 2,760 results of 3,796 for search '"atmosphere"', query time: 0.06s Refine Results
  1. 2741

    Investigation of Vorticity during Prevalent Winter Precipitation in Iran by Iman Rousta, Farshad Javadizadeh, Fatemeh Dargahian, Haraldur Ólafsson, Amin Shiri-Karimvandi, Sayed Hossein Vahedinejad, Mehdi Doostkamian, Edgar Ricardo Monroy Vargas, Anayat Asadolahi

    Published 2018-01-01
    “…In this study, precipitation data for 483 synoptic stations, and the U&V component of wind and HGT data for 4 atmospheric levels were respectively obtained from IRIMO and NCEP/NCAR databases (1961–2013). …”
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  2. 2742

    Simulation Effect Evaluation of CMIP6 Models on Climatic Elements in Huai River Basin by WU Chen, WANG Jingcai, SHAO Junbo, LI Xiangyu, WANG Wenyue

    Published 2023-01-01
    “…The general climate model (CMIP6) is the main means of large-scale simulation and prediction of future climate changes,but the simulation quality of its model data and applicability in different research regions need to be evaluated.Based on the measured data of 19 meteorological stations in the upper and middle reaches of the Huai River Basin from 1960 to 2014,this paper systematically evaluates the simulated climate data of 19 CMIP6 models using five precision indicators.The indicators include equidistant cumulative distribution function method,mean,dispersion coefficient (C<sub>v</sub>),Pearson correlation coefficient (PCC),standard deviation (STD),and root-mean-square deviation (RMSE).Finally,the following conclusions are drawn:① Based on the simulation data of 19 CMIP6 models corrected for bias,the top two climate models for precipitation data simulation are preliminarily selected,including ACCESS-ESM1-5 and CMCC-ESM2.The top five climate models for simulating temperature data contain ACCESS-ESM1-5 and CMCC-ESM2;② The historical period data and measured historical climate data of the selected CMIP6 models are evaluated from two aspects of annual change trend and spatial distribution.Then,the CMIP6 model suitable for the upper and middle reaches of the Huai River Basin is verified and selected;③ Based on analyzing the influence of atmospheric circulation factors on climate,AO has a good correlation with the climate data of the upper and middle reaches of the studied basin,and the correlation between the model and atmospheric circulation data is close to the actual situation.The comprehensive evaluation shows that the most suitable models for simulating the upper and middle reaches of the Huai River Basin are ACCESS-ESM1-5 and CMCC-ESM2.The systematic evaluation of CMIP6 model data simulating the upper and middle reaches of the Huai River Basin provides theoretical and technical references for the rational selection and utilization of CMIP6 datasets for the research on climate change factors in future scenarios of the basin.…”
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  3. 2743
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  6. 2746

    Source Impact Analysis Using Char-EC/Soot-EC Ratios in the Central Indo-Gangetic Plain (IGP) of India by Manisha Mishra, U.C. Kulshrestha

    Published 2021-06-01
    “…Abstract This study measured the carbonaceous aerosols in the atmospheric fine particulate matter (fPM; dia. < 2.5 µm, n = 102 samples) above an urban location (Prayagraj) on the central Indo-Gangetic Plain (IGP) for 1 year (December 2016–November 2017). …”
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  7. 2747

    Drastic Improvements in Air Quality in Ecuador during the COVID-19 Outbreak by Rasa Zalakeviciute, Renne Vasquez, Daniel Bayas, Adrian Buenano, Danilo Mejia, Rafael Zegarra, Valeria Diaz, Brian Lamb

    Published 2024-12-01
    “…The spatial evolution of atmospheric pollution using observed surface and satellite data, showed different results for the two major cities: Quito and Guayaquil. …”
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  8. 2748
  9. 2749

    Short-term impact of low air pressure on plants' functional traits. by Silvia Lembo, Georg Niedrist, Bouchra El Omari, Paul Illmer, Nadine Praeg, Andreas Meul, Matteo Dainese

    Published 2025-01-01
    “…Lower atmospheric pressure affects biologically relevant physical parameters such as gas partial pressure and concentration, leading to increased water vapor diffusivity and greater soil water content loss through evapotranspiration. …”
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  10. 2750
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  12. 2752

    Design of Network Service Transmission with LDPC Coding in Space Laser Communication by ZHANG Xiaole, TAN Xiaochuan, LI Zhe

    Published 2024-12-01
    “…【Objective】Affected by factors such as atmospheric attenuation and atmospheric turbulence, wireless laser communication will produce a certain degree of bit error, and it is often necessary to add error correction codes to improve the signal transmission quality. …”
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  13. 2753

    Database for a temperature model along urban Dâmbovița River by Gogoașe Nistoran Daniela-Elena, Ionescu Cristina Sorana, Opriș Ioana, Simionescu Ștefan-Mugur, Copilău Cristian

    Published 2025-01-01
    “…The paper examines the characteristic values of the hydraulic and atmospheric parameters necessary to set up a hydro-thermal deterministic model along urban Dâmbovița River in Bucharest City, Romania. …”
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  14. 2754

    Study of catalytic cracking process of fuel oil to obtain components of motor fuels using aerosol nanocatalysis technology by SV Leonenko, SA Kudryavtsev, IM Glikina

    Published 2017-12-01
    “…The article presents the results of the investigation of catalytic cracking process of crude oil in a distillation column, under atmospheric pressure, the active component of the catalyst being type Y zeolite. …”
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  15. 2755

    Simulation of the Thermal Conditions of Cask with Fuel Assemblies of BN-350 Reactor for Dry Storage by Ye. T. Koyanbayev, M. K. Skakov, D. A. Ganovichev, Ye. A. Martynenko, A. A. Sitnikov

    Published 2019-01-01
    “…In conclusion, the results of the thermal calculations in the cases of filling cask with argon and atmospheric air are given when the thickness of the insulation cask with concrete is 0.5 and 1 m. …”
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  16. 2756

    A deep learning method for bias correction of wind field in the South China Sea by Cong Pang, Tao Song, Tao Song, Handan Sun, Xin Li, Danya Xu

    Published 2025-01-01
    “…The developed MU - Diffusion framework, based on a diffusion model and MultiUnet (a multitasking Unet model), establishes a nonlinear relationship between GFS and the fifth-generation EC atmospheric reanalysis (ERA5) data. Focusing on the South China Sea region, this method corrects both wind speed and direction simultaneously. …”
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  17. 2757

    Recovery Capabilities of Rateless Codes on Simulated Turbulent Terrestrial Free Space Optics Channel Model by A. Andò, S. Mangione, L. Curcio, S. Stivala, G. Garbo, R. Pernice, A. C. Busacca

    Published 2013-01-01
    “…Free Space Optics (FSO) links are affected by several impairments: optical turbulence, scattering, absorption, and pointing. In particular, atmospheric optical turbulence generates optical power fluctuations at the receiver that can degrade communications with fading events, especially in high data rate links. …”
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  18. 2758

    Ocean Acidification: Fish Physiology and Behavior by Joshua Patterson, Lisa Krimsky, Joseph Henry

    Published 2020-03-01
    “… Increased atmospheric carbon dioxide has led to increased levels of dissolved carbon dioxide in the oceans and acidified ocean water, which could have direct effects on the physiology and behavior of fishes. …”
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  19. 2759

    Synthesis of Fatty Alcohols from Oil Palm Using a Catalyst of Ni-Cu Supported onto Zeolite by L. Giraldo, G. Camargo, J. Tirano, J. C. Moreno-Piraján

    Published 2010-01-01
    “…The catalytic performance of the obtained materials was evaluated and utilized for the hydrogenation of palm oil at 453 K and 40 atmospheres of pressure. The results show that the samples exhibited typical hexagonal arrangement of mesoporous structure with high surface area and the heteroatoms were probably incorporated into the framework of ZSM-5. …”
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  20. 2760

    Sliding Mode Observer and Control Design with Adaptive Parameter Estimation for a Supersonic Flight Vehicle by M. Bahrami, B. Ebrahimi, G. R. Ansarifar

    Published 2010-01-01
    “…Design and synthesis of a nonlinear generic supersonic flight vehicle longitudinal dynamics control for angle-of-attack, AOA, output tracking in the atmospheric flight is presented based on sliding mode control. …”
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