In-flight absolute calibration of the CBERS-2 CCD sensor data

Anais da Academia Brasileira de Ciências

Flávio J. Ponzoni²  Jurandir Zullo Junior¹  Rubens A.c. Lamparelli¹ 

[1] ,Instituto Nacional de Pesquisas Espaciais Divisão de Sensoriamento Remoto São José dos Campos SP ,Brasil

关键词: absolute calibration;    CBERS-2;    CCD;    reflectance;    calibração absoluta;    CBERS-2;    CCD;    reflectância;   

DOI  :  10.1590/S0001-37652008000200015

来源: SciELO

【 摘 要 】

Since the first images of the sensors on board of CBERS-2 (China-Brazil Earth Resources Satellite) satellite were made available by the National Institute for Space Research (INPE), users have asked information about the conversion of image digital numbers to physical data (radiance or reflectance). This paper describes the main steps that were carried out to calculate the in-flight absolute calibration coefficients for CBERS-2 CCD level 2 (radiometric and geometric correction) images considering the reflectance-based method. Remarks about the preliminary evaluation of these coefficients application are also presented.

【 授权许可】

CC BY   
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