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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Academia Brasileira de Ciências
2008
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| Soggetti: | |
| Accesso online: | https://www.redalyc.org/articulo.oa?id=32713458015 |
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Sommario:
- In-flight absolute calibration of the CBERS-2 CCD sensor data Flávio J. Ponzoni Jurandir Zullo Junior Rubens A.C. Lamparelli Multidisciplinaria (Ciencias Naturales y Exactas) CCD CBERS reflectance Absolute calibration 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. 2008 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32713458015 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.2 Vol.80