Stereooptical Methods of Sea Surface Processes Registration
https://doi.org/10.59887/2073-6673.2024.17(3)-4
Abstract
This work presents the optical methods for measurements of physical parameters on sea surface also covered by ice by using stereo cameras. New method of images with sea ice processing is offered. It can detect areas of open water and sharp edges on ice, which influence on radar signal refraction. This method is based on area of interest detection on optical images, statistical parameters for each area calculation, classification and local level definition to recognize needed structures. By using stereo system perspective distortions can be corrected and physical parameters of wind waves and sea ice can be calculated. This method was probe on stereo images obtained from 90th voyage of R/V «Akademik Mstislav Keldysh» in the Laptev Sea.
The results of ripple waves velocity measurements in case on open water by using development previously stereo method is presented. Comparison with Doppler shift of microwave signal is made.
The methods presented in this paper are of interest in field experiments simultaneously with the use of coherent radar stations for the quantitative interpretation of radar data, as well as for remote monitoring of the sea surface and ice conditions methods development.
Supporting agencies: The research was supported by the Russian Science Foundation grant No. 20-77-10081, https://rscf.ru/project/20-77-10081/.
About the Authors
N. A. Bogatov
A.V. Gaponov-Grekhov Institute of Applied Physics the Russian Academy of Sciences
Russian Federation
Russian Federation
603950, Ul’anova str., 46, Nizhny Novgorod
A. V. Ermoshkin
A.V. Gaponov-Grekhov Institute of Applied Physics the Russian Academy of Sciences
Russian Federation
Russian Federation
603950, Ul’anova str., 46, Nizhny Novgorod
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Review
For citations:
Bogatov N.A., Ermoshkin A.V. Stereooptical Methods of Sea Surface Processes Registration. Fundamental and Applied Hydrophysics. 2024;17(3):44-56. (In Russ.) https://doi.org/10.59887/2073-6673.2024.17(3)-4
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