Cloud top height retrieval method based on satellite tri-linear array CCD (charge coupled device) image

A height inversion and three-line array technology, applied in the field of remote sensing, can solve problems such as the impact of high-precision measurement
CN103308031AActive Publication Date: 2013-09-18PLA UNIV OF SCI & TECH
4 Cites 13 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
PLA UNIV OF SCI & TECH
Publication Date
2013-09-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a cloud top height retrieval method based on satellite tri-linear array CCD (charge coupled device) image. The method comprises the following steps: firstly selecting a cloud region in a foresight image, carrying out image matching to obtain a corresponding matching point in a back-sight image; secondly, obtaining the continuous static satellite image of adjacent time sections of the foresight image, and retrieving the wind speed and direction in the corresponding region; then, obtaining the time interval of cloud points in the foresight image and the back-sight image, and computing the displacement of the cloud points; and finally inferring the forward interaction formula of a moving target and combining the relative information of cloud point displacement and matching pair to obtain the cloud top height information. In the process of detecting the cloud top height by using the tri-linear array detector, the defects that height detection of the cloud tope height is greatly influenced caused by the moving of the cloud are compensated.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of remote sensing, in particular to a cloud top height inversion method based on a satellite three-line array CCD image. Background technique

[0002] Cloud top height information can be obtained through active or passive remote sensing. In active remote sensing, the millimeter-wave cloud measuring radar CloudSat can accurately detect the height of cloud tops, but its detection range is small. In passive remote sensing, cloud top height retrieval methods mainly include approximation method, climatology method, window channel temperature method, multi-channel cloud height measurement, carbon dioxide (CO 2 ) multi-channel method, stereo observation method, etc. When the first five methods invert cloud top heights, indirect measurements such as cloud emissivity and atmospheric temperature and humidity profiles are needed. The errors of these measurements will have a great impact on the inversion accuracy of c...

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