| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | marte.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 3ERPFQRTRW/3A3PTN8 |
| Repository | dpi.inpe.br/marte/2011/07.11.18.55 |
| Last Update | 2011:07.11.18.55.51 (UTC) administrator |
| Metadata Repository | dpi.inpe.br/marte/2011/07.11.18.55.51 |
| Metadata Last Update | 2018:06.06.02.24.09 (UTC) administrator |
| ISBN | 978-85-17-00056-0 (Internet) 978-85-17-00057-7 (DVD) |
| Citation Key | LopesMeAnBaCaCh:2011:AvReEs |
| Title | Avaliação da reflectância espectral da água do açude Santo Anastácio, através de técnicas de espectroscopia de campo  |
| Format | DVD, Internet. |
| Year | 2011 |
| Access Date | 2024, May 18 |
| Secondary Type | PRE CN |
| Number of Files | 1 |
| Size | 1272 KiB |
| 2. Context | |
| Author | 1 Lopes, Fernando Bezerra 2 Meireles, Ana Célia Maia 3 Andrade, Eunice Maia de 4 Barbosa, Cláudio Clemente Faria 5 Caitano, Rafaela Ferreira 6 Chaves, Luiz Carlos Guerreiro |
| Resume Identifier | 1 2 3 4 8JMKD3MGP5W/3C9JGSB |
| Group | 1 2 3 4 DPI-OBT-INPE-MCT-BR |
| Affiliation | 1 Universidade Federal do Ceará – UFC 2 Universidade Federal do Ceará – UFC 3 Universidade Federal do Ceará – UFC 4 Instituto Nacional de Pesquisas Espaciais - INPE 5 Universidade Federal do Ceará – UFC 6 Universidade Federal do Ceará – UFC |
| Author e-Mail Address | 1 lopesfb@yahoo.com.br 2 ameireles2003@yahoo.com.br 3 eandrade@pq.cnpq.br 4 claudio@dpi.inpe.br 5 rafaela_caitano@yahoo.com.br 6 luiscarlosguerreiro@yahoo.com.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 | 8508-8515 |
| Book Title | Anais |
| Organization | Instituto Nacional de Pesquisas Espaciais (INPE) |
| History (UTC) | 2011-08-15 15:17:53 :: wanderf@dsr.inpe.br -> administrator :: 2011 2018-06-06 02:24:09 :: 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 | water quality hyperspectral data chlorophyll-a regression model derivative analysis qualidade da água dados hiperespectrais clorofila-a modelo de regressão análise derivativa |
| Abstract | The aim of the present work was to study the chlorophyll-a (Cl-a) concentrations in the Waters of urban area dams through spectral reflectance. The water samples and radiometric measures were performed in October 2010, in 16 random points in the Santo Anastácio dam, Campus do Pici, Fortaleza, Ceará. Mathematical analysis techniques were used to identify the characteristic spectral features of the Cl-aand the regression analysis to generate the explanatory model of the concentrations of this component. The analysis results of the reflectance factor presented characteristic features of the spectral behavior of Waters rich in Cl-a. The results showed that the first derivate permitted to accentuate information seen in the spectral curves. The highest correlation coefficients of the chlorophyll-a with the first order derivate are found in the wavelengths ranging from 550 nm (r = 0.7677) and 709 nm (r = 0.9627). The regression model relating the chlorophyll-a concentration with the first derivate in 709 nm, was ajusted with na R2 of 0.9267. The adjusted model presented good performance of the analyzed statistical parameters. According to Willmonts index (d) and the performance index (c), the model developed for the Cl-a variable showed to be very reliable, presenting a degree of performance considered optimum (c > 0.85). The adjusted regression model showed that it is possible to infer upon the variable Cl-a, in the studied area, based on the spectral responses of this variable. |
| Area | SRE |
| Type | Sensoriamento Remoto Hiperespectral e Radiometria |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDPI > Avaliação da reflectância... |
| 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/3A3PTN8 |
| zipped data URL | http://urlib.net/zip/3ERPFQRTRW/3A3PTN8 |
| Language | pt |
| Target File | p1595.pdf |
| User Group | administrator wanderf@dsr.inpe.br |
| Visibility | shown |
| 5. Allied materials | |
| Mirror Repository | urlib.net/www/2011/03.29.20.55 |
| Next Higher Units | 8JMKD3MGPCW/3EQCCU5 |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.43.57 1 |
| 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 issn label 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) | tereza@sid.inpe.br |
| update | |