Results 11 to 20 of about 744,956 (222)
AtmosphereIn this study, a diagnostic model for lower atmospheric ducts was developed using the polar weather research and forecasting model. A five-year simulation was then conducted across the entire Arctic region to investigate the temporal and spatial ...
Jinyue Wang +9 more
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Arctic Atmospheric Ducting Characteristics and Their Connections with Arctic Oscillation and Sea Ice
Atmosphere, 2022 Atmospheric ducting is an anomalous atmospheric structure that affects electromagnetic wave propagation. In the context of global warming, the navigation capacity of the Arctic is increased, and the atmospheric duct can affect communication and ...
Ting Qin +6 more
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The Statistical Characteristics of Atmospheric Ducts Observed Over Stations in Different Regions of American Mainland Based on High-Resolution GPS Radiosonde Soundings [PDF]
Frontiers in Environmental Science, 2022 Atmospheric duct is an anomalous atmospheric structure that affects electromagnetic wave propagation. The important characteristics of the atmospheric ducts include duct probability, duct height, duct strength, and the thickness of the trapping layer. To
Lang Huang, Xiaofeng Zhao, Yudi Liu
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Validation of atmospheric evaporation duct in the eastern Indian Ocean [PDF]
Frontiers in Earth ScienceAn atmospheric duct is an anomalous atmospheric structural phenomenon that causes trap refraction in the troposphere to change the propagation paths and ranges of electromagnetic waves, thereby increasing the detection distances of radar and other ...
Zhe Qi +6 more
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International Journal of Antennas and Propagation, 2020 In this paper, global position system high-resolution sounding data from 1998 to 2008 were used to statistically analyze the spatiotemporal distribution and determine the probability, thickness, and intensity of atmospheric ducts at 12 stations in Alaska.
Yanbo Mai +4 more
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AtmosphereAtmospheric ducts play a critical role in the propagation of electromagnetic waves by minimizing signal loss and extending transmission distances, which is essential for radar, communication, and navigation systems.
Xiao Yang +5 more
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Remote Sensing, 2022 The atmospheric duct (AD) is an anomalous structure in which electromagnetic waves can make transhorizon propagation. ADs often occur in the formation, development and disappearance of tropical cyclones (TCs). In this work, the eXtreme Gradient Boosting (
Lang Huang +3 more
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Journal of Marine Science and EngineeringThe Coupled Ocean–Atmosphere–Wave–Sediment Transport (COAWST) model serves as the foundation for creating a forecast model to detect lower atmospheric ducts in this study.
Qian Liu +7 more
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Research on a Multimodel Fusion Diagnosis Method for Evaporation Ducts in the East China Sea [PDF]
Sensors, 2023 Evaporation ducts are abnormal states of the atmosphere in the air–sea boundary layer that directly affect the propagation trajectory of electromagnetic (EM) waves.
Cheng Zhang +8 more
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A Random Forest Algorithm Combined with Bayesian Optimization for Atmospheric Duct Estimation
Remote Sensing, 2023 Inversion of atmospheric ducts is of great importance in the field of performance evaluation for radar and communication systems. Since the model parameters in machine learning play a crucial role in prediction performance, this paper develops a random ...
Chao Yang +4 more
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