Digital elevation modeling through forests: the challenge of the Amazon

Detalhes bibliográficos
Autor(a) principal: POLIDORI,Laurent
Data de Publicação: 2022
Outros Autores: CALDEIRA,Carlos Rodrigo Tanajura, SMESSAERT,Maël, HAGE,Mhamad EL
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Amazonica
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672022000100069
Resumo: ABSTRACT Elevation mapping at ground level is challenging in forested areas like the Amazon region, which is mostly covered by dense rainforest. The most common techniques, i.e. photogrammetry and short wavelength radar, provide elevations at canopy level at best, while most applications require ground elevations. Even lidar and P-band radar, which can penetrate foliage and measure elevations at ground level, have some limitations which are analyzed in here. We address three research questions: To what extent can a terrain model be replaced by a more easily available canopy-level surface model for topography-based applications? How can the elevation be obtained at ground level through forest? Can a priori knowledge of general continental relief properties be used to compensate for the limits of measurement methods in the presence of forest?
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spelling Digital elevation modeling through forests: the challenge of the Amazontropical forestdigital terrain modelphotogrammetrylidarradarABSTRACT Elevation mapping at ground level is challenging in forested areas like the Amazon region, which is mostly covered by dense rainforest. The most common techniques, i.e. photogrammetry and short wavelength radar, provide elevations at canopy level at best, while most applications require ground elevations. Even lidar and P-band radar, which can penetrate foliage and measure elevations at ground level, have some limitations which are analyzed in here. We address three research questions: To what extent can a terrain model be replaced by a more easily available canopy-level surface model for topography-based applications? How can the elevation be obtained at ground level through forest? Can a priori knowledge of general continental relief properties be used to compensate for the limits of measurement methods in the presence of forest?Instituto Nacional de Pesquisas da Amazônia2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672022000100069Acta Amazonica v.52 n.1 2022reponame:Acta Amazonicainstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPA10.1590/1809-4392202103091info:eu-repo/semantics/openAccessPOLIDORI,LaurentCALDEIRA,Carlos Rodrigo TanajuraSMESSAERT,MaëlHAGE,Mhamad ELeng2022-03-11T00:00:00Zoai:scielo:S0044-59672022000100069Revistahttps://acta.inpa.gov.br/PUBhttps://old.scielo.br/oai/scielo-oai.phpacta@inpa.gov.br||acta@inpa.gov.br1809-43920044-5967opendoar:2022-03-11T00:00Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA)false
dc.title.none.fl_str_mv Digital elevation modeling through forests: the challenge of the Amazon
title Digital elevation modeling through forests: the challenge of the Amazon
spellingShingle Digital elevation modeling through forests: the challenge of the Amazon
POLIDORI,Laurent
tropical forest
digital terrain model
photogrammetry
lidar
radar
title_short Digital elevation modeling through forests: the challenge of the Amazon
title_full Digital elevation modeling through forests: the challenge of the Amazon
title_fullStr Digital elevation modeling through forests: the challenge of the Amazon
title_full_unstemmed Digital elevation modeling through forests: the challenge of the Amazon
title_sort Digital elevation modeling through forests: the challenge of the Amazon
author POLIDORI,Laurent
author_facet POLIDORI,Laurent
CALDEIRA,Carlos Rodrigo Tanajura
SMESSAERT,Maël
HAGE,Mhamad EL
author_role author
author2 CALDEIRA,Carlos Rodrigo Tanajura
SMESSAERT,Maël
HAGE,Mhamad EL
author2_role author
author
author
dc.contributor.author.fl_str_mv POLIDORI,Laurent
CALDEIRA,Carlos Rodrigo Tanajura
SMESSAERT,Maël
HAGE,Mhamad EL
dc.subject.por.fl_str_mv tropical forest
digital terrain model
photogrammetry
lidar
radar
topic tropical forest
digital terrain model
photogrammetry
lidar
radar
description ABSTRACT Elevation mapping at ground level is challenging in forested areas like the Amazon region, which is mostly covered by dense rainforest. The most common techniques, i.e. photogrammetry and short wavelength radar, provide elevations at canopy level at best, while most applications require ground elevations. Even lidar and P-band radar, which can penetrate foliage and measure elevations at ground level, have some limitations which are analyzed in here. We address three research questions: To what extent can a terrain model be replaced by a more easily available canopy-level surface model for topography-based applications? How can the elevation be obtained at ground level through forest? Can a priori knowledge of general continental relief properties be used to compensate for the limits of measurement methods in the presence of forest?
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672022000100069
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672022000100069
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1809-4392202103091
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto Nacional de Pesquisas da Amazônia
publisher.none.fl_str_mv Instituto Nacional de Pesquisas da Amazônia
dc.source.none.fl_str_mv Acta Amazonica v.52 n.1 2022
reponame:Acta Amazonica
instname:Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron:INPA
instname_str Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron_str INPA
institution INPA
reponame_str Acta Amazonica
collection Acta Amazonica
repository.name.fl_str_mv Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA)
repository.mail.fl_str_mv acta@inpa.gov.br||acta@inpa.gov.br
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