| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3HPCL9S | |||
| Repository | sid.inpe.br/mtc-m21b/2015/01.14.18.22 (restricted access) | |||
| Last Update | 2015:01.14.18.22.26 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2015/01.14.18.22.26 | |||
| Metadata Last Update | 2020:12.31.02.07.45 (UTC) administrator | |||
| DOI | 10.1016/j.rse.2014.06.018 | |||
| ISSN | 0034-4257 | |||
| Citation Key | CarvalhoBarbNovoRudo:2015:ImScCo | |||
| Title | Implications of scatter corrections for absorption measurements on optical closure of Amazon floodplain lakes using the Spectral Absorption and Attenuation Meter (AC-S-WETLabs)  | |||
| Year | 2015 | |||
| Month | Feb. | |||
| Access Date | 2024, May 18 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 2999 KiB | |||
| 2. Context | ||||
| Author | 1 Carvalho, Lino Augusto Sander de 2 Barbosa, Claudio Clemente Faria 3 Novo, Evlyn Márcia Leão de Moraes 4 Rudorff, Conrado de Moraes | |||
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JGSB 3 8JMKD3MGP5W/3C9JH39 | |||
| Group | 1 DSR-OBT-INPE-MCTI-GOV-BR 2 DPI-OBT-INPE-MCTI-GOV-BR 3 DSR-OBT-INPE-MCTI-GOV-BR 4 DSR-OBT-INPE-MCTI-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) | |||
| Author e-Mail Address | 1 lino@dsr.inpe.br 2 claudio@dpi.inpe.br 3 evlyn@dsr.inpe.br 4 cmr@brenucsb.edu | |||
| Journal | Remote Sensing of Environment | |||
| Volume | 157 | |||
| Pages | 123-137 | |||
| Secondary Mark | A1_GEOCIÊNCIAS A1_BIODIVERSIDADE A1_CIÊNCIAS_AMBIENTAIS A1_INTERDISCIPLINAR A1_ENGENHARIAS_I A1_CIÊNCIAS_AGRÁRIAS_I A1_CIÊNCIAS_BIOLÓGICAS_I | |||
| History (UTC) | 2015-01-14 18:23:04 :: simone -> administrator :: 2015 2020-12-31 02:07:45 :: administrator -> simone :: 2015 | |||
| 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 | AC-S and Hydroscat corrections AC-S scattering correction methods Amazon floodplain lake Closure experiment Inherent optical properties | |||
| Abstract | Amazon floodplain lakes range widely in concentrations of optically active constituents (OAC) driven by seasonality in hydrological and biogeochemical processes, but in general they are characterized by high turbidity (NTU from 90 to 1645) compared to coastal waters. In this work, instruments for measuring inherent optical properties (IOPs) of water bodies were evaluated for the first time in floodplain lakes in the lower Amazon River during the falling limb of the hydrograph. Water column profiles of total attenuation and absorption were measured using the Spectral Absorption and Attenuation Meter (AC-S-WETLabs), and of backscattering using Hydroscat. These measurements, however, are subject to uncertainties and require corrections for turbid waters. In this paper, we assessed the implications of scattering correction methods for the absorption tube, proposed by the AC-S manufacturer, in the simulation of the Remote Sensing Reflectance (Rrs). The closure experiment comparing Hydrolight (Mobley & Sundman, 2001) simulated Rrs and in situ Rrs demonstrated that neither of the corrections was able to thoroughly account for the scattering errors which were propagated to the absorption measurements with AC-S and backscattering with Hydroscat. The three scattering correction methods (Flat, Proportional and Kirk) either under or overestimated the absorption coefficient that resulted in either under or overestimation of the simulated Rrs. Flat and Proportional Methods resulted in an underestimation of Rrs from 400 to 550 nm and overestimation from 600 to 700 nm, indicating that the assumption of zero (0) absorption in the near infrared does not apply to inland turbid water. The Rrs errors varied also according to water OAC composition. Overall, Kirk correction method provided the best results regarding the spectral shape of the Rrs, however, failed to account for magnitude. Based on the tuning tests, the errors in spectra magnitude seem to be sensitive to the constant fraction of scattering (CFS) used in the Kirk method. Tests carried out with CFS values varying from 0.18 to 0.38 indicated that magnitude error can be partially overcomed by tuning CFS according to water composition. Improvements in the scattering correction methods are required in order to obtain reliable IOPs in turbid inland Amazon lakes. | |||
| Area | SRE | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDPI > Implications of scatter... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Implications of scatter... | |||
| 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 | Implications of scatter.pdf | |||
| User Group | administrator simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | denypublisher allowfinaldraft24 | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | urlib.net/www/2011/03.29.20.55 | |||
| Next Higher Units | 8JMKD3MGPCW/3EQCCU5 8JMKD3MGPCW/3ER446E | |||
| Citing Item List | sid.inpe.br/bibdigital/2013/09.09.15.05 4 sid.inpe.br/bibdigital/2013/09.13.21.11 3 sid.inpe.br/mtc-m21/2012/07.13.14.45.43 2 | |||
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||