Results 21 to 30 of about 767,153 (271)
Journal of Marine Science and Engineering, 2023 Atmospheric ducts are special super-refractive atmospheric structures that can cause over-the-horizon propagation of electromagnetic waves. Different types of atmospheric ducts have different influences on electromagnetic wave propagation.
Yang Shi +3 more
doaj +1 more source
A Two-Way Split-Step Wavelet Scheme for Tropospheric Long-Range Propagation in Various Environments
Remote Sensing, 2022 In the context of improving the dimensioning of observation and telecommunication, the characterization of the propagation canal is very important. Thus, accurate models of propagation phenomenona in their environment and above a rough surface (maritime ...
Thomas Bonnafont +2 more
doaj +1 more source
Ducting Approach to Atmospheric Sound Propagation [PDF]
The Journal of the Acoustical Society of America, 1969 The velocity profile V=V0/1+Az+Bz2)12 is investigated for nonfocus situations. When A is negative, sound rays are refracted back to the ground and are reflected. When A is positive, sound rays are refracted away from the ground and a shadow zone is formed.
openaire +1 more source
Inverse modeling of European CH4 emissions: sensitivity to the observational network [PDF]
, 2009 Inverse modeling is widely employed to provide “top-down” emission estimates using atmospheric measurements. Here, we analyze the dependence of derived CH4 emissions on the sampling frequency and density of the observational surface network, using the ...
Bergamaschi, P. +9 more
core +2 more sources
University of Arizona, Institute of Atmospheric Physics, Progress Report No. 2
, 1955 This title from the Institute of Atmospheric Physics Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona.
Braham, Roscoe R., Jr.
core +4 more sources
Remote Sensing, 2022 At present, 5G base stations are densely distributed in major cities based on improving user concentrations and the large demand for services in urban hotspot areas.
Kai Yang +7 more
doaj +1 more source
, 2011 Are you looking for the best AC duct cleaning services? Well, you have hit the right place to get excellent services. Ideal Cleaning offers vent and AC duct cleaning services in Dubai to meet your requirements.
ac duct
core +1 more source
University of Arizona, Institute of Atmospheric Physics, Progress Report No. 1
, 1954 This title from the Institute of Atmospheric Physics Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona.
Braham, Roscoe R., Jr.
core +4 more sources
Multiscale Decomposition Prediction of Propagation Loss in Oceanic Tropospheric Ducts
Remote Sensing, 2021 The oceanic tropospheric duct is a structure with an abnormal atmospheric refractive index. This structure severely affects the remote sensing detection capability of electromagnetic systems designed for an environment with normal atmospheric refraction.
Mingxia Dang +6 more
doaj +1 more source
University of Arizona, Institute of Atmospheric Physics, Progress Report No. 4
, 1957 This title from the Institute of Atmospheric Physics Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona.
Kassander, A. Richard, Jr.
core +4 more sources