Auroral oval boundary position prediction method based on interplanetary and geomagnetic parameters

A technology of boundary position and prediction method, applied in the field of space physics, can solve problems such as impossibility of completion and cumbersome manual determination of the boundary of the aurora egg

Inactive Publication Date: 2015-12-02
SHAANXI NORMAL UNIV
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is very cumbersome to manually determine the boundary of the a...

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
  • Auroral oval boundary position prediction method based on interplanetary and geomagnetic parameters
  • Auroral oval boundary position prediction method based on interplanetary and geomagnetic parameters
  • Auroral oval boundary position prediction method based on interplanetary and geomagnetic parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0056] see figure 1 , a UVI image aurora egg boundary position modeling and prediction method based on interplanetary and geomagnetic parameters, the present invention includes 4 kinds of UVI aurora egg boundary models based on interplanetary and geomagnetic parameters, by UVI aurora image preprocessing module, aurora The egg boundary automatic segmentation module, the interplanetary and geomagnetic parameter acquisition module, the data set construction module, the regression modeling module, and the prediction and evaluation module complete the following specific steps:

[0057] Step 1: UVI aurora image preprocessing

[0058] Before extracting and modeling the aurora egg boundary, it is necessary to preprocess the high-noise Polar satellite UVI aurora image to eliminate noise points and remove invalid background pixels, as follows:

[0059] Step 1.1: Because auror...

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 discloses an auroral oval boundary position prediction method based on interplanetary and geomagnetic parameters. Estimation is performed on geomagnetic latitude of auroral oval boundaries in the equator direction and the pole direction at all magnetic places according to interplanetary and geomagnetic environment, and the method can be used in prediction for an auroral oval boundary position in space weather research. The method comprises the following achieving steps: (1) UVI image pre-processing, (2) automatic division of the auroral oval boundaries, (3) obtaining of the interplanetary and geomagnetic parameters, (4) construction of a data set, (5) regression modeling, (6) prediction of the auroral oval boundary position, and (7) evaluation of a prediction result. According to the experiment result, the method can predict the auroral oval boundary position at an about 1.7MLAT average absolute error in a relatively accurate manner, and the method has great practical value in the space weather prediction aspect.

Description

technical field [0001] The invention belongs to the field of space physics, relates to aurora physics, in particular to a method for predicting the boundary position of an aurora egg based on interplanetary and geomagnetic parameters. Background technique [0002] The aurora egg is an elliptical belt-shaped area formed by the aurora particle settlement and the magnetic pole center in the north and south poles of the earth. It is the area affected by the energy particles from the sun on the earth. The auroral oval can characterize and predict space weather on a global scale, so a good auroral oval model can effectively help understand space weather and predict its impact on polar and subpolar regions. [0003] The existing research work on the size and position of the auroral oval is divided into two categories: one is qualitative analysis, such as discussing the influence of the By and Bz components of the interplanetary magnetic field (IMF) on the boundary position of the a...

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): G06T7/00G06T7/60
Inventor 杨秋菊马骁辛经纬
Owner SHAANXI NORMAL 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