Results 21 to 30 of about 4,491 (242)
Remote Sensing, 2021 The radio occultation technique provides stable atmospheric measurements that can work as a benchmark for calibrating and validating satellite-sounding data.
Loknath Adhikari +2 more
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Remote Sensing, 2022 According to GPS radio occultation data from previous studies, the height of the planetary boundary layer (PBLH) is defined as the altitude at which the vertical gradient of refractivity N is at its local minimum, called the gradient approach.
Li Wang, Shengpeng Yang, Lin Lin
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British Journal of Ophthalmology, 1999 This article presents an overview of the terms used in laser refractive surgery and identifies the benefits, outcomes, complications and shortcomings of these procedures. Even though it is 'fashionable' to have these procedures done, they are still largely experimental. Although there are benefits from these procedures, thorough screening and selection
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Ten years analysis of Tropospheric refractivity variations
Annals of Geophysics, 2004 The refractivity variations of the troposphere are responsible for various effects on radio wave propagation, such as refraction, bending, radio-station interference, etc.
T. D. Xenos, S. A. Isaakidis
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Atmosphere, 2023 The dryline, often associated with the development of severe storms in the Southern Great Plains of the United States of America, is a boundary layer phenomenon that occurs when a warm and moist air mass from the Gulf of Mexico meets a hot and dry air ...
Rubén Nocelo López +2 more
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Uniform refraction in negative refractive index materials [PDF]
Journal of the Optical Society of America A, 2015 We study the problem of constructing an optical surface separating two homogeneous, isotropic media, one of which has a negative refractive index. In doing so, we develop a vector form of Snell's law, which is used to study surfaces possessing a certain uniform refraction property, both in the near and far field cases. In the near field problem, unlike
Stachura, Eric, Gutirrez, Cristian E.
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Refractivity variations and propagation at Ultra High Frequency
Results in Physics, 2017 Present framework is established to deal with the refractivity variations normally affected the radio waves propagation at different frequencies, ranges and different environments.
I. Alam +4 more
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Full-Coupled Convolutional Transformer for Surface-Based Duct Refractivity Inversion
Remote Sensing, 2022 A surface-based duct (SBD) is an abnormal atmospheric structure with a low probability of occurrence buta strong ability to trap electromagnetic waves. However, the existing research is based on the assumption that the range direction of the surface duct
Jiajing Wu +6 more
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Dynamic Refraction Stereo [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2005 In this paper we consider the problem of reconstructing the 3D position and surface normal of points on an unknown, arbitrarily-shaped refractive surface. We show that two viewpoints are sufficient to solve this problem in the general case, even if the refractive index is unknown. The key requirements are 1) knowledge of a function that maps each point
Nigel J W, Morris, Kiriakos N, Kutulakos
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Near-Surface Thermodynamic Influences on Evaporation Duct Shape
AtmosphereThis study utilizes in situ measurements and numerical weather prediction forecasts curated during the Coupled Air–Sea Processes Electromagnetic Ducting Research (CASPER) east field campaign to assess how thermodynamic properties in the marine ...
Sarah E. Wessinger +3 more
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