COMPARISON BETWEEN THE BIDIRECTIONAL REFLECTANCE FACTOR OF A Eucalyptus grandis SEEDLING CANOPY AND THE HEMISPHERICAL DIRECTIONAL REFLECTANCE FACTOR OF ITS DETACHED LEAVES
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/464 |
Resumo: | Radimetric measurements were performed on an Eucalyptus grandis seedling canopy and in detached leaves from that canopy, considering three growing stages: old, intermediate and young leaves. From the canopy it was determined the Bidirectional Reflectance Factors (FRB) in different times of the day (from 08:00 am to 3:00 pm, in 1 by 1 hour) and from the up size of the leaves it was determined the Hemispherical Directional Reflectance Factors (FRDH). ANOVAs statistical procedure was applied in order to compare FRB and FRDH in all collecting times to evaluate the illumination geometry influence in both parameters relationship in specific spectral regions: Band (450 a 520 nm), Band 2 (520 a 600 nm), Band 3 (630 a 690 nm) and Band 4 (760 a 900 nm). The results showed that for that specific canopy (structural characteristics) the illumination geometry did not influence the relationship between FRB and FRDH in all bands and different time of day. The FRDH from the younger leaves were frequentely similar to the FRB in the visible region, independently of the time of the day, which indicated that the superior portion of the canopy was better illuminated. In the near infrared, due the multiple scattering, it was not identified any similarity between FRB and FRDH along the time. |
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Cerne (Online) |
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COMPARISON BETWEEN THE BIDIRECTIONAL REFLECTANCE FACTOR OF A Eucalyptus grandis SEEDLING CANOPY AND THE HEMISPHERICAL DIRECTIONAL REFLECTANCE FACTOR OF ITS DETACHED LEAVESVegetation radiometryvegetation spectral behaviourRadimetric measurements were performed on an Eucalyptus grandis seedling canopy and in detached leaves from that canopy, considering three growing stages: old, intermediate and young leaves. From the canopy it was determined the Bidirectional Reflectance Factors (FRB) in different times of the day (from 08:00 am to 3:00 pm, in 1 by 1 hour) and from the up size of the leaves it was determined the Hemispherical Directional Reflectance Factors (FRDH). ANOVAs statistical procedure was applied in order to compare FRB and FRDH in all collecting times to evaluate the illumination geometry influence in both parameters relationship in specific spectral regions: Band (450 a 520 nm), Band 2 (520 a 600 nm), Band 3 (630 a 690 nm) and Band 4 (760 a 900 nm). The results showed that for that specific canopy (structural characteristics) the illumination geometry did not influence the relationship between FRB and FRDH in all bands and different time of day. The FRDH from the younger leaves were frequentely similar to the FRB in the visible region, independently of the time of the day, which indicated that the superior portion of the canopy was better illuminated. In the near infrared, due the multiple scattering, it was not identified any similarity between FRB and FRDH along the time.CERNECERNE2015-10-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/464CERNE; Vol. 8 No. 1 (2002); 059-068CERNE; v. 8 n. 1 (2002); 059-0682317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttps://cerne.ufla.br/site/index.php/CERNE/article/view/464/402Copyright (c) 2015 CERNEinfo:eu-repo/semantics/openAccessPonzoni, Flávio JorgeGomes, Alessandra RodriguesMaldonado, Francisco DarioSassagawa, Hiromi Suzana YamasakiNumata, IzayaAraújo, Luciana Spinelli de2015-10-22T09:13:04Zoai:cerne.ufla.br:article/464Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2015-10-22T09:13:04Cerne (Online) - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
COMPARISON BETWEEN THE BIDIRECTIONAL REFLECTANCE FACTOR OF A Eucalyptus grandis SEEDLING CANOPY AND THE HEMISPHERICAL DIRECTIONAL REFLECTANCE FACTOR OF ITS DETACHED LEAVES |
title |
COMPARISON BETWEEN THE BIDIRECTIONAL REFLECTANCE FACTOR OF A Eucalyptus grandis SEEDLING CANOPY AND THE HEMISPHERICAL DIRECTIONAL REFLECTANCE FACTOR OF ITS DETACHED LEAVES |
spellingShingle |
COMPARISON BETWEEN THE BIDIRECTIONAL REFLECTANCE FACTOR OF A Eucalyptus grandis SEEDLING CANOPY AND THE HEMISPHERICAL DIRECTIONAL REFLECTANCE FACTOR OF ITS DETACHED LEAVES Ponzoni, Flávio Jorge Vegetation radiometry vegetation spectral behaviour |
title_short |
COMPARISON BETWEEN THE BIDIRECTIONAL REFLECTANCE FACTOR OF A Eucalyptus grandis SEEDLING CANOPY AND THE HEMISPHERICAL DIRECTIONAL REFLECTANCE FACTOR OF ITS DETACHED LEAVES |
title_full |
COMPARISON BETWEEN THE BIDIRECTIONAL REFLECTANCE FACTOR OF A Eucalyptus grandis SEEDLING CANOPY AND THE HEMISPHERICAL DIRECTIONAL REFLECTANCE FACTOR OF ITS DETACHED LEAVES |
title_fullStr |
COMPARISON BETWEEN THE BIDIRECTIONAL REFLECTANCE FACTOR OF A Eucalyptus grandis SEEDLING CANOPY AND THE HEMISPHERICAL DIRECTIONAL REFLECTANCE FACTOR OF ITS DETACHED LEAVES |
title_full_unstemmed |
COMPARISON BETWEEN THE BIDIRECTIONAL REFLECTANCE FACTOR OF A Eucalyptus grandis SEEDLING CANOPY AND THE HEMISPHERICAL DIRECTIONAL REFLECTANCE FACTOR OF ITS DETACHED LEAVES |
title_sort |
COMPARISON BETWEEN THE BIDIRECTIONAL REFLECTANCE FACTOR OF A Eucalyptus grandis SEEDLING CANOPY AND THE HEMISPHERICAL DIRECTIONAL REFLECTANCE FACTOR OF ITS DETACHED LEAVES |
author |
Ponzoni, Flávio Jorge |
author_facet |
Ponzoni, Flávio Jorge Gomes, Alessandra Rodrigues Maldonado, Francisco Dario Sassagawa, Hiromi Suzana Yamasaki Numata, Izaya Araújo, Luciana Spinelli de |
author_role |
author |
author2 |
Gomes, Alessandra Rodrigues Maldonado, Francisco Dario Sassagawa, Hiromi Suzana Yamasaki Numata, Izaya Araújo, Luciana Spinelli de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Ponzoni, Flávio Jorge Gomes, Alessandra Rodrigues Maldonado, Francisco Dario Sassagawa, Hiromi Suzana Yamasaki Numata, Izaya Araújo, Luciana Spinelli de |
dc.subject.por.fl_str_mv |
Vegetation radiometry vegetation spectral behaviour |
topic |
Vegetation radiometry vegetation spectral behaviour |
description |
Radimetric measurements were performed on an Eucalyptus grandis seedling canopy and in detached leaves from that canopy, considering three growing stages: old, intermediate and young leaves. From the canopy it was determined the Bidirectional Reflectance Factors (FRB) in different times of the day (from 08:00 am to 3:00 pm, in 1 by 1 hour) and from the up size of the leaves it was determined the Hemispherical Directional Reflectance Factors (FRDH). ANOVAs statistical procedure was applied in order to compare FRB and FRDH in all collecting times to evaluate the illumination geometry influence in both parameters relationship in specific spectral regions: Band (450 a 520 nm), Band 2 (520 a 600 nm), Band 3 (630 a 690 nm) and Band 4 (760 a 900 nm). The results showed that for that specific canopy (structural characteristics) the illumination geometry did not influence the relationship between FRB and FRDH in all bands and different time of day. The FRDH from the younger leaves were frequentely similar to the FRB in the visible region, independently of the time of the day, which indicated that the superior portion of the canopy was better illuminated. In the near infrared, due the multiple scattering, it was not identified any similarity between FRB and FRDH along the time. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-05 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/464 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/464 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/464/402 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 CERNE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 CERNE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 8 No. 1 (2002); 059-068 CERNE; v. 8 n. 1 (2002); 059-068 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1789440342629548032 |