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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34T/48AP9US
Repositorysid.inpe.br/mtc-m21d/2023/01.04.13.52   (restricted access)
Last Update2023:01.04.13.52.15 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21d/2023/01.04.13.52.15
Metadata Last Update2024:01.02.17.16.38 (UTC) administrator
DOI10.1016/j.rsase.2022.100897
ISSN2352-9385
Citation KeyJesusKuplBarrGama:2023:DuPoDe
TitleDual polarimetric decomposition in Sentinel-1 images to estimate aboveground biomass of arboreal caatinga
Year2023
MonthJan.
Access Date2024, May 28
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size7062 KiB
2. Context
Author1 Jesus, Janisson Batista de
2 Kuplich, Tatiana Mora
3 Barreto, Íkaro Daniel de Carvalho
4 Gama, Dráuzio Correia
Resume Identifier1
2 8JMKD3MGP5W/3C9JJ9P
Group1
2 COESU-CGGO-INPE-MCTI-GOV-BR
Affiliation1 Universidade Federal do Rio Grande do Sul (UFRGS)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Universidade Federal Rural de Pernambuco
4 Universidade Estadual do Sudoeste da Bahia
Author e-Mail Address1 janisson.eng@gmail.com
2 tatiana.kuplich@inpe.br
3 daniel.carvalho.ib@gmail.com
4 drauziogama@hotmail.com
JournalRemote Sensing Applications: Society and Environment
Volume29
Pagese100897
History (UTC)2023-01-04 13:53:05 :: simone -> administrator :: 2023
2024-01-02 17:16:38 :: administrator -> simone :: 2023
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsC-Band
Polarimetric filters
Semi-arid
Synthetic aperture radar
Tropical dry forest
AbstractThe Caatinga is a typical biome of the Brazilian semiarid region, and there is a lack of studies to estimate its plant biomass using SAR images. Also, there are no studies at this topic that use information from polarimetric decomposition. Therefore, this study aimed to estimate aboveground biomass (AGB) of the arboreal Caatinga under different phenological conditions using entropy and alpha angle data obtained by different polarimetric filters by Dual Polarimetric Decomposition in Sentinel-1 SAR images. The forest inventory was carried out in 19 sample plots with an area of 30 × 30 m in the Caatinga of Sergipe state, Brazil, using an allometric equation to estimate the AGB. Sentinel-1 images were obtained in 3 phenological conditions of the Caatinga (Greenness, Intermediate and Dryness) to which polarimetric filters (BoxCar - BC, IDAN, Improved Lee Sigma - ILS and Refined Lee - RL) were applied and obtained the entropy (H) and alpha angle (α) attributes after Dual Polarimetric Decomposition. The attributes of each polarimetric filter were related to the AGB using linear regressions. The combination of attributes provided higher accuracy than individual estimates: data from Intermediate period provided higher accuracy for AGB estimates, using H of the IDAN filtering and α using ILS (R2: 32.05%). The attributes generated through Dual Polarimetric Decomposition in Sentinel-1 images showed a low relationship with the AGB of the Caatinga in the study area. Nevertheless, the study made it possible to indicate which polarimetric filters depending on the different leaf cover conditions in the Caatinga offer greater precision in relation to the measured AGB, serving as the basis for future studies.
AreaSRE
Arrangementurlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGGO > Dual polarimetric decomposition...
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4. Conditions of access and use
Languageen
Target File1-s2.0-S2352938522002051-main.pdf
User Groupsimone
Reader Groupadministrator
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Visibilityshown
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Next Higher Units8JMKD3MGPCW/46KUBT5
Citing Item Listsid.inpe.br/bibdigital/2022/04.03.22.35 5
sid.inpe.br/mtc-m21/2012/07.13.15.00.48 2
DisseminationPORTALCAPES; SCOPUS.
Host Collectionurlib.net/www/2021/06.04.03.40
6. Notes
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