Ocean internal wave velocity monitoring method

A technology of wave velocity and ocean, applied in image data processing, instruments, calculations, etc., can solve problems such as limited buoy data, large influence of weather conditions, and small range, and achieve the effects of high extraction accuracy, expanded correlation, and multiple data sources

Inactive Publication Date: 2015-01-07
SHANGHAI OCEAN UNIV
View PDF1 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: small range, long time, high cost, greatly affected by weather conditions
On-site measurement needs to mobilize ships and arrange personnel to go out to sea to observe on-site, which is costly and affected by weather conditions
The advantage of buoy observation is that the observation time is long, but the disadvant

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ocean internal wave velocity monitoring method
  • Ocean internal wave velocity monitoring method
  • Ocean internal wave velocity monitoring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] The present invention provides a method for monitoring the velocity of internal waves in the ocean. The specific implementations provided by the present invention will be described in detail below in conjunction with the accompanying drawings. Please refer to figure 1 , the method of the present invention specifically comprises the following steps:

[0046] In step S1, preprocessing the remote sensing image containing internal wave information specifically includes:

[0047] Using synthetic aperture radar and MODIS instruments to monitor the sea surface to be measured, the corresponding original images are SAR images and MODIS images respectively, and the images are processed by radiation correction, geometric correction, geocoding, and noise removal.

[0048]In step S2, the standard stretching method is used to enhance the preprocessed SAR image and MODIS image, specifically including: using a blue / white color scheme to display the MODIS image and SAR image, so that ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an ocean internal wave velocity monitoring method. The method particularly comprises the following steps that S1, remote sensing images comprising internal wave information are preprocessed; S2, a preprocessed SAR image and a preprocessed MODIS image are enhanced through a standard tensile method; S3, the internal wave position and the distribution message are extracted from the enhanced MODIS image and the enhanced SAR image; S4, spatial interpolation is carried out on an MODIS internal wave crest line with low precision; S5, the internal wave velocity is extracted; S6, the precision of the internal wave velocity is verified. The ocean internal wave velocity monitoring method has the advantages that the internal wave velocity is extracted through the satellite microwave remote sensing image and the optical remote sensing image, the extraction precision is high, the cost is low, time and labor are saved, multiple data sources are provided, the spatial distribution of the internal wave velocity within a certain sea area can be obtained, and then research on the aspect of correlation between the internal wave velocity and environmental factors can be expanded.

Description

technical field [0001] The invention relates to the field of ocean monitoring, in particular to a method for monitoring ocean internal wave velocity. Background technique [0002] Ocean remote sensing technology is a comprehensive detection technology that installs sensors on working platforms such as artificial satellites, spacecraft, and balloons to measure and record ocean characteristics over a long distance. It is a high-tech integrating space science, electronics, oceanography, and optics. Its principle is based on the fact that the ocean continuously radiates electromagnetic wave energy to the surroundings. At the same time, the sea surface also reflects and scatters the electromagnetic wave energy illuminated by the sun and artificial radiation sources. The designed sensor accepts, records, transmits and processes these energies to obtain information images or data related to ocean characteristics. [0003] Ocean internal wave is an important seawater movement, whic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06T7/00G06T7/73
CPCG06T7/73G06T2207/10032G06T2207/30181
Inventor 刘冰清李晓峰丁献文
Owner SHANGHAI OCEAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap