| 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, May 08 | |||
| Type of Work | conference paper | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 1164 KiB | |||
| 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 | |||
| 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 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Stabilization of sentinel-1... | |||
| Arrangement 2 | urlib.net > 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 | |||
| 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 | |||
| 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 | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||