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Factors affecting L-band Alos Palsar backscatter on tropical forest biomass

Aboveground biomass (AGB) is one of the key parameters for carbon accounting in a forest area. However, estimating this parameter by using remote sensing approach has been challenging as the interpretation of remotely sensed has been challenging as the interpretation of remotely sensed complex tropi...

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Main Authors: Omar, Hamdan, Ismail, Mohd Hasmadi, Hamzah, Khali Aziz, Kamarudin, Norizah, Mohd Shafri, Helmi Zulhaidi
Format: Article
Language:English
Published: Global Journals 2014
Online Access:http://psasir.upm.edu.my/id/eprint/37616/1/Factors%20affecting%20L-band%20Alos%20Palsar%20backscatter%20on%20tropical%20forest%20biomass.pdf
http://psasir.upm.edu.my/id/eprint/37616/
http://journalofscience.org/index.php/GJSFR/article/view/1154
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spelling my.upm.eprints.376162015-12-15T03:25:21Z http://psasir.upm.edu.my/id/eprint/37616/ Factors affecting L-band Alos Palsar backscatter on tropical forest biomass Omar, Hamdan Ismail, Mohd Hasmadi Hamzah, Khali Aziz Kamarudin, Norizah Mohd Shafri, Helmi Zulhaidi Aboveground biomass (AGB) is one of the key parameters for carbon accounting in a forest area. However, estimating this parameter by using remote sensing approach has been challenging as the interpretation of remotely sensed has been challenging as the interpretation of remotely sensed complex tropical forest ecosystem. Synthetic aperture radar (SAR) sensor system has its potential in obtaining acceptable AGB estimation but several issues such as complex forest structure and saturation at certain biomass levels remain unanswered and continuously being studied. This study was carried out to identify factors that contribute to the variation of backscattering properties on forest biomass. The sensitivity of L-band backscatter from Alos Palsar satellite with a wavelength of about 23 cm to the forest biomass was examined. Natural and logged forests of Dungun Timber Complex in Terengganu, Peninsular Malaysia were selected as the study area. AGB at a number of sample plots were measured on the ground in the study area. Both aspects of forestry and remote sensing comprised several variables namely tree allometry, vertical forest strata, tree diameter classes, radar polarimetry, and spatial variability were examined in four experiments. AGB was calculated based on these parameters and tested by using statistical backward elimination method to identify the most significant factor that infer the backscatter. The study revealed that the L-band Alos Palsar backscatter interacts only with canopies of forest at certain size of trees. Global Journals 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37616/1/Factors%20affecting%20L-band%20Alos%20Palsar%20backscatter%20on%20tropical%20forest%20biomass.pdf Omar, Hamdan and Ismail, Mohd Hasmadi and Hamzah, Khali Aziz and Kamarudin, Norizah and Mohd Shafri, Helmi Zulhaidi (2014) Factors affecting L-band Alos Palsar backscatter on tropical forest biomass. Global Journal of Science Frontier Research: (D) Agriculture & Veterinary, 14 (3). pp. 51-64. ISSN 0975-5896; ESSN: 2249-4626 http://journalofscience.org/index.php/GJSFR/article/view/1154
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Aboveground biomass (AGB) is one of the key parameters for carbon accounting in a forest area. However, estimating this parameter by using remote sensing approach has been challenging as the interpretation of remotely sensed has been challenging as the interpretation of remotely sensed complex tropical forest ecosystem. Synthetic aperture radar (SAR) sensor system has its potential in obtaining acceptable AGB estimation but several issues such as complex forest structure and saturation at certain biomass levels remain unanswered and continuously being studied. This study was carried out to identify factors that contribute to the variation of backscattering properties on forest biomass. The sensitivity of L-band backscatter from Alos Palsar satellite with a wavelength of about 23 cm to the forest biomass was examined. Natural and logged forests of Dungun Timber Complex in Terengganu, Peninsular Malaysia were selected as the study area. AGB at a number of sample plots were measured on the ground in the study area. Both aspects of forestry and remote sensing comprised several variables namely tree allometry, vertical forest strata, tree diameter classes, radar polarimetry, and spatial variability were examined in four experiments. AGB was calculated based on these parameters and tested by using statistical backward elimination method to identify the most significant factor that infer the backscatter. The study revealed that the L-band Alos Palsar backscatter interacts only with canopies of forest at certain size of trees.
format Article
author Omar, Hamdan
Ismail, Mohd Hasmadi
Hamzah, Khali Aziz
Kamarudin, Norizah
Mohd Shafri, Helmi Zulhaidi
spellingShingle Omar, Hamdan
Ismail, Mohd Hasmadi
Hamzah, Khali Aziz
Kamarudin, Norizah
Mohd Shafri, Helmi Zulhaidi
Factors affecting L-band Alos Palsar backscatter on tropical forest biomass
author_facet Omar, Hamdan
Ismail, Mohd Hasmadi
Hamzah, Khali Aziz
Kamarudin, Norizah
Mohd Shafri, Helmi Zulhaidi
author_sort Omar, Hamdan
title Factors affecting L-band Alos Palsar backscatter on tropical forest biomass
title_short Factors affecting L-band Alos Palsar backscatter on tropical forest biomass
title_full Factors affecting L-band Alos Palsar backscatter on tropical forest biomass
title_fullStr Factors affecting L-band Alos Palsar backscatter on tropical forest biomass
title_full_unstemmed Factors affecting L-band Alos Palsar backscatter on tropical forest biomass
title_sort factors affecting l-band alos palsar backscatter on tropical forest biomass
publisher Global Journals
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/37616/1/Factors%20affecting%20L-band%20Alos%20Palsar%20backscatter%20on%20tropical%20forest%20biomass.pdf
http://psasir.upm.edu.my/id/eprint/37616/
http://journalofscience.org/index.php/GJSFR/article/view/1154
_version_ 1643832025277267968
score 13.211869

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