A Study of HJ-1A CCD Image Atmospheric Correction

doi:10.6046/gtzyyg.2010.04.02

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Abstract

This paper deals with a suitable atmospheric correction method based on HJ-1A CCD Image. A method based on 6S radiation transfer code and isochronous meteorological information on sensing time was used in the atmosphere correction，which is an operational method of correcting visible and near-infrared data for atmospheric effects. Validation analysis was conducted by comparing the reflectance data corrected and uncorrected atmospherically. Significant differences occurred between them: the values of the corrected reflectance of CCD1~3 decreased obviously，whereas those of CCD4 increased. The retrieved surface reflectance was evaluated against the ground-based reflectance acquired during HJ-1A satellite overpass，and it is shown that the curves of the figures are similar， and the compared values are agree with each other well. Based on the statistical analysis，some reasons for the errors were mentioned in the end of the paper.

Keywords Edge detection Connection component Sequential algorithm Edge evaluation.

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	TP 751.1

Issue Date: 02 August 2011

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	LIN Hui
	SHU Ning
	ZHAO Chang-sheng

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LIN Hui,SHU Ning,ZHAO Chang-sheng. A Study of HJ-1A CCD Image Atmospheric Correction[J]. REMOTE SENSING FOR LAND & RESOURCES, 2010, 22(4): 6-9.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2010.04.02 OR https://www.gtzyyg.com/EN/Y2010/V22/I4/6

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