Method for reconstituting sea surface temperature remote sensing dataset in same latitude

A technology of remote sensing data and sea surface, applied in the field of remote sensing, which can solve problems such as errors

Inactive Publication Date: 2013-11-20
HANGZHOU NORMAL UNIVERSITY
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Problems solved by technology

[0006] Since the properties of SST are directly affected by solar radiation, the variation of SST in the latitude direction is very obvious. The data in the non-missing area brings greater error when estimating the initial data

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  • Method for reconstituting sea surface temperature remote sensing dataset in same latitude
  • Method for reconstituting sea surface temperature remote sensing dataset in same latitude
  • Method for reconstituting sea surface temperature remote sensing dataset in same latitude

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Embodiment Construction

[0059] The present invention will be further described below in conjunction with accompanying drawing.

[0060] Step (1). The spatial position of the data set matches the grid size;

[0061] Step (2). Extraction and processing of equal latitude data sets;

[0062] Step (3). The DINEOF method for reconstructing SST remote sensing data at equal latitudes;

[0063] The spatial position of the data set in the step (1) matches the grid size. Considering the sensor, the remote sensing platform, and the earth itself, the remote sensing image has unavoidable geometric distortion. In addition, different SST remote sensing products have different spatial resolutions. The size is also different, in order to make the spatial coordinates of the data set consistent with the dimension of the grid size, so as to facilitate processing and reconstruction. The transformation relationship between images in mismatched SST remote sensing datasets is usually nonlinear, and an appropriate coord...

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Abstract

The invention discloses a method for reconstituting a sea surface temperature remote sensing dataset in the same latitude. The method comprises the following steps that first, the spatial position of the dataset is matched with grids in size; second, a same latitude dataset is extracted and processed; third, the DINEOF method for reconstituting the same latitude SST sensing data is implemented. The method for reconstituting the sea surface temperature remote sensing dataset in the same latitude can achieve the reconstitution of the missing data of sea temperature sensing products, based on the fact that the variation of temperature distribution on a latitude line is smaller than longitude variation, initial value estimation errors of the missing data are lowered, and a practical operation method for improving the reconstitution precision is achieved.

Description

technical field [0001] The invention belongs to the technical field of remote sensing, and specifically relates to a method for reconstructing sea surface temperature remote sensing data sets at equal latitudes. The invention is based on the fact that the variation of the temperature distribution on the latitude line is smaller than the variation of the longitude, thereby reducing the initial value estimation error of the missing data and improving the weight of the missing data. Structural precision. Background technique [0002] Since the first water color satellite sensor CZCS (Coastal Zone Color Scanner) was put into use in October 1978, the number, spectral channel, radiation performance, and spatial resolution of water color satellite sensors have been greatly developed. The commercial application of numerous water color remote sensing products provides large-scale and continuous observation data for oceanographic research. [0003] Satellite ocean remote sensing u...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G06T7/00
Inventor 周斌蒋锦刚窦文洁
Owner HANGZHOU NORMAL UNIVERSITY
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