Análise Comparativa do CBERS-2 e Imagens de Satélite Landsat-TM em Cartografia da Vegetação

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Jinmu Choi
Sami Khanal
Shrinidhi Ambinakudige

Resumo

Moderate resolution sensors such as Landsat satellites are a vital component of earth observation and required in a wide variety of applications across many disciplines. Failure of Landsat 7 and the aging Landsat 5 could create a data gap for studies depending on medium resolution satellite data in the near future. The objective of this paper is to investigate the compatibility of CBERS-2 satellite data with the Landsat-TM satellite in land use and land cover change studies. We compared Landsat-TM and CBERS-2 Charge Coupled Device (CCD) images using four methods: intra bands similarities of reflectance values, land cover classification, vegetation indices (SR, NDVI, and TNDVI), and water index (NDWI), and found that CBERS-2 and Landsat-TM are very similar. Despite the differences in spatial resolution, coverage area and data availability between CBERS-2 and Landsat-TM, CBERS-2 was comparable to Landsat-TM and thus appears to be useful in the studies requiring vegetation mapping. To confirm the similarities of CBERS-2 and Landsat-TM data in vegetation mapping, more studies in different eco-regions are needed. Furthermore, inconsistencies in CBERS-2 data quality and availability are limitations of using CBERS-2 as an alternative source of medium resolution data in vegetation mapping.

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CHOI, J.; KHANAL, S.; AMBINAKUDIGE, S. Análise Comparativa do CBERS-2 e Imagens de Satélite Landsat-TM em Cartografia da Vegetação. Revista Brasileira de Cartografia, [S. l.], v. 63, n. 1, 2011. DOI: 10.14393/rbcv63n1-43723. Disponível em: https://seer.ufu.br/index.php/revistabrasileiracartografia/article/view/43723. Acesso em: 2 nov. 2024.
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Biografia do Autor

Jinmu Choi, SMU - Geography, Sangmyung University

Seoul, Korea

Sami Khanal, UW - University of Wisconsin - Madison

Biological Systems Engineering

Shrinidhi Ambinakudige, MSU - Mississippi State University

Department of Geosciences