| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | marte.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 3ERPFQRTRW/3A358CP |
| Repository | dpi.inpe.br/marte/2011/07.07.12.35 |
| Last Update | 2011:07.07.12.35.55 (UTC) wanderf@dsr.inpe.br |
| Metadata Repository | dpi.inpe.br/marte/2011/07.07.12.35.55 |
| Metadata Last Update | 2018:06.06.02.23.59 (UTC) administrator |
| ISBN | 978-85-17-00056-0 (Internet) 978-85-17-00057-7 (DVD) |
| Citation Key | BaptistaSalAlmMenAra:2011:DiEsDe |
| Title | Discretização Espacial de Derrames Vulcânicos em Arequipa, Peru, por meio de Dados ASTER SWIR  |
| Format | DVD, Internet. |
| Year | 2011 |
| Access Date | 2024, Dec. 26 |
| Secondary Type | PRE CN |
| Number of Files | 1 |
| Size | 2002 KiB |
| 2. Context | |
| Author | 1 Baptista, Gustavo Macedo de Mello 2 Salinas, Edgar Roque Gutierrez 3 Almeida, Tati de 4 Meneses, Paulo Roberto 5 Araújo Filho, José Oswaldo de |
| Affiliation | 1 Universidade de Brasília - UnB 2 Universidad Nacional San Agustin - UNSA - Peru 3 Universidade de Brasília - UnB 4 Universidade de Brasília - UnB 5 Universidade de Brasília - UnB |
| Author e-Mail Address | 1 gmbaptista@unb.br 2 gutiunsa@yahoo.es 3 tati_almeida@unb.br 4 pmeneses@unb.br 5 oswaldo@unb.br |
| Editor | Epiphanio, José Carlos Neves Galvão, Lênio Soares |
| e-Mail Address | wanderf@dsr.inpe.br |
| Conference Name | Simpósio Brasileiro de Sensoriamento Remoto, 15 (SBSR). |
| Conference Location | Curitiba |
| Date | 30 abr. - 5 maio 2011 |
| Publisher | Instituto Nacional de Pesquisas Espaciais (INPE) |
| Publisher City | São José dos Campos |
| Pages | 3514-3521 |
| Book Title | Anais |
| Organization | Instituto Nacional de Pesquisas Espaciais (INPE) |
| History (UTC) | 2011-08-15 15:17:51 :: wanderf@dsr.inpe.br -> administrator :: 2011 2018-06-06 02:23:59 :: administrator -> tereza@sid.inpe.br :: 2011 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Keywords | Volcanic eruptions ASTER SWIR erupções vulcânicas ASTER SWIR |
| Abstract | This article examines the spatial discretization of volcanic eruptions in the Misti volcano, Arequipa, Peru. For this, we used two scenes of ASTER SWIR sensor, one of radiance at the sensor (L1B) and another, a reflectance with atmospheric and crosstalk correction (AST_07XT), dated March 17, 2008. For both scenes, we made the Principal Component Analysis transformation and selected PC-2, which was filtered with a 3 x 3 low pass and segmented into 8 classes with the rainbow color table, representing the 8 units identified in the field. In the radiance data, the bands 7 and 8 were the ones that contributed most to the composition of PC2. This is coherent, because in those bands we discovered spectral features of the main mineral found in Mistis lava flow. The bands 8 and 9 are the ones that most contributed to the composition of PC2 in a reflectance data. The band 9 is the one that contains the crosstalk problem. Another problem discovered in the reflectance data was the fact that all the eigenvectors of PC1 are negative, which reverses the relief. We didnt find any explanation to this fact in the literature. The results with radiance and reflectance data shows the same units, but it can be seen that radiance data showed greatest consistence with the eruptions than the reflectance data. The variation of 3400m in height between the city and the volcano's cone can be explained, because the topographical effects adopted in atmospheric correction eventually change the results in reflectance data. |
| Area | SRE |
| Type | Geologia |
| 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/3ERPFQRTRW/3A358CP |
| zipped data URL | http://urlib.net/zip/3ERPFQRTRW/3A358CP |
| Language | pt |
| Target File | p0781.pdf |
| User Group | wanderf@dsr.inpe.br |
| Visibility | shown |
| 5. Allied materials | |
| Mirror Repository | urlib.net/www/2011/03.29.20.55 |
| Host Collection | dpi.inpe.br/banon/2003/12.10.19.30 |
| 6. Notes | |
| Empty Fields | archivingpolicy archivist callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi edition group issn label lineage mark nextedition nexthigherunit notes numberofvolumes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype url versiontype volume |
| 7. Description control | |
| e-Mail (login) | tereza@sid.inpe.br |
| update | |