1. Identity statement | |
Reference Type | Journal Article |
Site | mtc-m21c.sid.inpe.br |
Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
Identifier | 8JMKD3MGP3W34R/438RS7B |
Repository | sid.inpe.br/mtc-m21c/2020/09.14.11.48 (restricted access) |
Last Update | 2020:09.14.11.48.59 (UTC) simone |
Metadata Repository | sid.inpe.br/mtc-m21c/2020/09.14.11.48.59 |
Metadata Last Update | 2022:01.04.01.35.23 (UTC) administrator |
DOI | 10.5194/isprs-Annals-V-3-2020-89-2020 |
ISSN | 0924-2716 |
Citation Key | DoblasCaShSaArPe:2020:StSeSa |
Title | Stabilization of sentinel-1 sar time-series using climate and forest structure data for early tropical deforestation detection |
Year | 2020 |
Month | Aug. |
Access Date | 2024, June 16 |
Type of Work | conference paper |
Secondary Type | PRE PI |
Number of Files | 1 |
Size | 1164 KiB |
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2. Context | |
Author | 1 Doblas, Juan Prieto 2 Carneiro, Arian 3 Shimabukuro, Yosio Edemir 4 Sant'Anna, Sidnei João Siqueira 5 Aragão, Luiz Eduardo Oliveira e Cruz de 6 Pereira, Francisca Rocha de Souza |
Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JJCQ 4 8JMKD3MGP5W/3C9JJ8N |
Group | 1 SER-SRE-SESPG-INPE-MCTIC-GOV-BR 2 SER-SRE-SESPG-INPE-MCTIC-GOV-BR 3 DIDSR-CGOBT-INPE-MCTIC-GOV-BR 4 DIDSR-CGOBT-INPE-MCTIC-GOV-BR 5 DIDSR-CGOBT-INPE-MCTIC-GOV-BR 6 DIDSR-CGOBT-INPE-MCTIC-GOV-BR |
Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Instituto Nacional de Pesquisas Espaciais (INPE) |
Author e-Mail Address | 1 juan.doblas@inpe.br 2 arian.carneiro@inpe.br 3 yosio.shimabukuro@inpe.br 4 sidnei.santanna@inpe.br 5 luiz.aragao@inpe.br 6 francisca.pereira@inpe.br |
Journal | ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
Volume | 5 |
Number | 3 |
Pages | 89-96 |
History (UTC) | 2020-09-14 11:48:59 :: simone -> administrator :: 2022-01-04 01:35:23 :: administrator -> simone :: 2020 |
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3. Content and structure | |
Is the master or a copy? | is the master |
Content Stage | completed |
Transferable | 1 |
Content Type | External Contribution |
Version Type | publisher |
Keywords | Remote Sensing Time-series Data SAR Modelling Deforestation Detection Change Detection |
Abstract | In this study we analyse the factors of variability of Sentinel-1 C-band radar backscattering over tropical rainforests, and propose a method to reduce the effects of this variability on deforestation detection algorithms. To do so, we developed a random forest regression model that relates Sentinel-1 gamma nought values with local climatological data and forest structure information. The model was trained using long time-series of 26 relevant variables, sampled over 6 undisturbed tropical forests areas. The resulting model explained 71.64% and 73.28% of the SAR signal variability for VV and VH polarizations, respectively. Once the best model for every polarization was selected, it was used to stabilize extracted pixel-level data of forested and non-deforested areas, which resulted on a 10 to 14% reduction of time-series variability, in terms of standard deviation. Then a statistically robust deforestation detection algorithm was applied to the stabilized time-series. The results show that the proposed method reduced the rate of false positives on both polarizations, especially on VV (from 21% to 2%, α=0.01). Meanwhile, the omission errors increased on both polarizations (from 27% to 37% in VV and from 27% to 33% on VV, α=0.01). The proposed method yielded slightly better results when compared with an alternative state-of-the-art approach (spatial normalization). |
Area | SRE |
Arrangement | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Stabilization of sentinel-1... |
doc Directory Content | access |
source Directory Content | there are no files |
agreement Directory Content | |
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4. Conditions of access and use | |
Language | en |
Target File | doblas_stabilization.pdf |
User Group | simone |
Visibility | shown |
Archiving Policy | denypublisher denyfinaldraft24 |
Read Permission | deny from all and allow from 150.163 |
Update Permission | not transferred |
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5. Allied materials | |
Next Higher Units | 8JMKD3MGPCW/3ER446E 8JMKD3MGPCW/3F3NU5S |
Dissemination | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. |
Host Collection | urlib.net/www/2017/11.22.19.04 |
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6. Notes | |
Notes | 2020 24th ISPRS Congress on Technical Commission III; Nice, Virtual; France; 31 August 2020 through 2 September 2020; |
Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url |
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7. Description control | |
e-Mail (login) | simone |
update | |
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