HAND TERRAIN DESCRIPTOR FOR REGIONAL SCALE MAPPING OF AMAZON TERRA FIRME ECO-HYDROLOGICAL UNITS

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Taise Farias Pinheiro
Camilo Daleles Rennó
Maria Isabel Sobral Escada

Resumo

The HAND (Height Above the Nearest Drainage), a quantitative topographic descriptor, is used to classify terrain in a manner that is related to local soil water conditions, providing hydrological meaning to the SRTM DEM. In this paper, we compare performance of using the HAND grid instead of the SRTM DEM for classifying, at regional scale (19 000 000 km2), drainage conditions of terra firme environment (plateau, slope, ecotone and waterlogged) in the Eastern Amazon, Brazil. Additionally, we emphasize the need to attenuate the canopy effects of the SRTM DEM for the boundary between forested and deforested areas, in order to produce coherent data for hydrological modeling.

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PINHEIRO, T. F.; RENNÓ, C. D.; ESCADA, M. I. S. HAND TERRAIN DESCRIPTOR FOR REGIONAL SCALE MAPPING OF AMAZON TERRA FIRME ECO-HYDROLOGICAL UNITS. Revista Brasileira de Cartografia, [S. l.], v. 67, n. 3, 2015. Disponível em: https://seer.ufu.br/index.php/revistabrasileiracartografia/article/view/44657. Acesso em: 13 ago. 2022.
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Biografia do Autor

Taise Farias Pinheiro, Institute for Space Research (INPE) Avenida dos Astronautas, 1758, 12227-010, São José dos Campos

Divisão de Processament de Imagens

Camilo Daleles Rennó, Institute for Space Research (INPE) Avenida dos Astronautas, 1758, 12227-010, São José dos Campos

Image Processing Department, Institute for Space Research (INPE)

Maria Isabel Sobral Escada, Institute for Space Research (INPE) Avenida dos Astronautas, 1758, 12227-010, São José dos Campos

Image Processing Department, Institute for Space Research (INPE)

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