Analysis of the accuracy of using ERA5 reanalysis data for diagnosis of evaporation ducts in the East China Sea [PDF]
Evaporation ducts are a phenomenon that occurs with extremely high frequency at the boundary between the atmosphere and the ocean. Because they directly affect the propagation of electromagnetic waves, it is necessary to study their various ...
Zhijin Qiu +9 more
doaj +2 more sources
Research on a Multimodel Fusion Diagnosis Method for Evaporation Ducts in the East China Sea [PDF]
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
doaj +2 more sources
Evaporation duct effects on sea clutter [PDF]
Existing sea clutter models are in general agreement on the trends and magnitudes of sea reflectivity at low (1 degrees -10 degrees ) grazing angles. However, at extremely low grazing angles ( >
R. A. Paulus
openaire +3 more sources
A Multi-Dimensional Deep-Learning-Based Evaporation Duct Height Prediction Model Derived from MAGIC Data [PDF]
The evaporation duct height (EDH) can reflect the main characteristics of the near-surface meteorological environment, which is essential for designing a communication system under this propagation mechanism. This study proposes an EDH prediction network
Cheng Yang, Jian Wang, Yafei Shi
doaj +2 more sources
Investigating the Role of Wave Process in the Evaporation Duct Simulation by Using an Ocean–Atmosphere–Wave Coupled Model [PDF]
In this study, a diagnostic model for evaporation ducts was established based on the Coupled Ocean–Atmosphere–Wave–Sediment Transport (COAWST) and the Naval Postgraduate School (NPS) models.
Zhigang Shan +9 more
doaj +2 more sources
On the Possibility of Detecting Evaporation Ducts Through GNSS Reflectometry [PDF]
An evaporation duct is a kind of atmospheric event with a refractive index exceeding the curvature of the Earth, which mostly exists on the ocean surface.
Fu Li +8 more
doaj +2 more sources
Characterizing Evaporation Ducts Within the Marine Atmospheric Boundary Layer Using Artificial Neural Networks [PDF]
We apply a multilayer perceptron machine learning (ML) regression approach to infer electromagnetic (EM) duct heights within the marine atmospheric boundary layer (MABL) using sparsely sampled EM propagation data obtained within a bistatic context.
Earls, Christopher J., Sit, Hilarie
core +2 more sources
A New Diagnostic Model and Improved Prediction Algorithm for the Heights of Evaporation Ducts [PDF]
This paper develops a new method for the diagnosis and prediction of the evaporation duct heights on the sea, which has certain reference significance for the study of the evaporation ducts.
Yanbo Mai +9 more
doaj +2 more sources
Continuous observation of evaporation ducts in Super Typhoon Koinu (202314) using clustered wave gliders: mechanisms and maritime communication implications [PDF]
Formed by humidity stratification in the marine atmospheric boundary layer, evaporation ducts serve as critical natural channels for maritime over-the-horizon (OTH) wireless communication.
Shuwen Wang +19 more
doaj +2 more sources
Validation of atmospheric evaporation duct in the eastern Indian Ocean [PDF]
An 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
doaj +2 more sources

