| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | marte2.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP6W34M/3PSMFB5 |
| Repository | sid.inpe.br/marte2/2017/10.27.16.17 |
| Last Update | 2017:10.27.16.17.02 (UTC) banon |
| Metadata Repository | sid.inpe.br/marte2/2017/10.27.16.17.03 |
| Metadata Last Update | 2018:06.06.03.12.07 (UTC) administrator |
| ISBN | 978-85-17-00088-1 |
| Label | 59365 |
| Citation Key | XaudSantMartXaud:2017:PrImSA |
| Title | Processamento de imagem SAR (Banda L) para detecção histórica de áreas florestais degradadas por incêndios recorrentes em Roraima  |
| Format | Internet |
| Year | 2017 |
| Access Date | 2024, Apr. 24 |
| Secondary Type | PRE CN |
| Number of Files | 1 |
| Size | 1248 KiB |
| 2. Context | |
| Author | 1 Xaud, Haron Abrahim Magalhães 2 Santos, João Roberto dos 3 Martins, Flora da Silva Ramos Vieira 4 Xaud, Maristela Ramalho |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JHF4 |
| Author e-Mail Address | 1 haron.xaud@embrapa.br |
| Editor | Gherardi, Douglas Francisco Marcolino Aragão, Luiz Eduardo Oliveira e Cruz de |
| e-Mail Address | daniela.seki@inpe.br |
| Conference Name | Simpósio Brasileiro de Sensoriamento Remoto, 18 (SBSR) |
| Conference Location | Santos |
| Date | 28-31 maio 2017 |
| Publisher | Instituto Nacional de Pesquisas Espaciais (INPE) |
| Publisher City | São José dos Campos |
| Pages | 7216-7223 |
| Book Title | Anais |
| Organization | Instituto Nacional de Pesquisas Espaciais (INPE) |
| History (UTC) | 2017-10-27 16:17:03 :: banon -> administrator :: 2018-06-06 03:12:07 :: administrator -> banon :: 2017 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Abstract | This paper aims to analyse the historical images of ALOS/PALSAR data (L Band) as an alternative to monitoring degradation of tropical forests affected by fires in the Northernmost Amazon Region. The sites of this study are located in the Apiaú Region, State of Roraima, Brazil. The study area was burned irregularly in 1998, 2003 and 2007 fires. The post-fire image (Jan.2008) was obtained in HH polarization. We ortoretified the PALSAR data and generated Amplitude and Intensity images. Additionally it were generated 13 textural data based on occurrence and co-occurrence matrix. Using Object-Based Image Analysis (OBIA) we segmented a 2007 Landsat TM image (as reference) to obtain objects that were described by 15 attributes derived from SAR images plus the standard deviation (SD) of each one, totalizing 30 attributes per object. We selected training and reference samples divided into 5 classes: (FN) unburned forests; (FQ1B) forests affected by 1 fire-low intensity; (FQ1A) forests affected by 1 fire-high intensity; (FQ2) forests affected by 2 fires; (FQ3) forests affected by 3 fires. We optimized the selection of PALSAR attributes to obtain the best separability among classes using a feature space optimization tool in OBIA based on Nearest Neighbor classifier. From the 30 attributes derived from PALSAR image, the results highlighted the best attributes (images) to detect degraded areas by recurrent fires; eight of them obtained from SD of textures and amplitude images. |
| Area | SRE |
| Type | Degradação de florestas |
| Arrangement 1 | urlib.net > BDMCI > Fonds > SBSR > SBSR 18 > Processamento de imagem... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > SBSR 18 > Processamento de imagem... |
| Arrangement 3 | Projeto Memória 60... > Livros e livros editados > SBSR 18 > Processamento de imagem... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/8JMKD3MGP6W34M/3PSMFB5 |
| zipped data URL | http://urlib.net/zip/8JMKD3MGP6W34M/3PSMFB5 |
| Language | pt |
| Target File | 59365.pdf |
| User Group | banon |
| Visibility | shown |
| 5. Allied materials | |
| Mirror Repository | urlib.net/www/2011/03.29.20.55 |
| Next Higher Units | 8JMKD3MGP6W34M/3PMFNUS |
| Citing Item List | sid.inpe.br/marte2/2017/09.25.14.55 3 |
| Host Collection | dpi.inpe.br/marte2/2013/05.17.15.03.06 |
| 6. Notes | |
| Empty Fields | affiliation archivingpolicy archivist callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi edition group issn keywords lineage mark nextedition notes numberofvolumes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission rightsholder schedulinginformation secondarydate secondarykey secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype url versiontype volume |
| 7. Description control | |
| e-Mail (login) | banon |
| update | |