| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | plutao.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP3W/474P2K5 |
| Repository | sid.inpe.br/plutao/2022/06.15.12.50 (restricted access) |
| Last Update | 2022:06.20.16.52.06 (UTC) simone |
| Metadata Repository | sid.inpe.br/plutao/2022/06.15.12.50.09 |
| Metadata Last Update | 2023:01.03.16.52.55 (UTC) administrator |
| DOI | 10.3389/frsen.2022.834576 |
| ISSN | 2673-6187 |
| Label | lattes: 1596449770636962 2 FloresJúniorBMNMLSC:2022:HySeAl |
| Citation Key | FloresJúniorBMNMLCC:2022:HySeAl |
| Title | Hybrid Semi-Analytical Algorithm for Estimating Chlorophyll-A Concentration in Lower Amazon Floodplain Waters  |
| Year | 2022 |
| Access Date | 2024, May 18 |
| Type of Work | journal article |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 3423 KiB |
| 2. Context | |
| Author | 1 Flores Júnior, Rogério 2 Barbosa, Cláudio Clemente Faria 3 Maciel, Daniel Andrade 4 Novo, Evlyn Márcia Leão de Moraes 5 Martins, Vitor Souza 6 Lobo, Felipe de Lucia 7 Carvalho, Lino Augusto Sander de 8 Carlos, Felipe Menino |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JGSB 3 4 8JMKD3MGP5W/3C9JH39 |
| Group | 1 SER-SRE-DIPGR-INPE-MCTI-GOV-BR 2 DIOTG-CGCT-INPE-MCTI-GOV-BR 3 SER-SRE-DIPGR-INPE-MCTI-GOV-BR 4 DIOTG-CGCT-INPE-MCTI-GOV-BR 5 6 7 8 SER-SRE-DIPGR-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) 5 Mississippi State University 6 Universidade Federal de Pelotas (UFPel) 7 Universidade Federal Do Rio de Janeiro (UFRJ) 8 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Author e-Mail Address | 1 rogerio.floresjr@gmail.com DIOTG Asa São José dos Campos 2 claudio.barbosa@inpe.br 3 damaciel_maciel@hotmail.com 4 evlyn.leao@gmail.com 5 6 7 8 felipe.carlos@fatec.sp.gov.br |
| Journal | Frontiers in Remote Sensing |
| Volume | 3 |
| Pages | 1-20 |
| History (UTC) | 2022-06-15 13:39:15 :: lattes -> administrator :: 2022 2022-06-17 07:44:41 :: administrator -> lattes :: 2022 2022-06-20 16:52:09 :: lattes -> administrator :: 2022 2022-07-08 16:52:54 :: administrator -> simone :: 2022 2022-12-20 14:05:55 :: simone -> administrator :: 2022 2023-01-03 16:52:55 :: administrator -> simone :: 2022 |
| 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 | Chlorophyll-a water quality and clarity Amazon Floodflain inherent and apparent optical properties turbid water |
| Abstract | The Amazon Basin is the largest on the planet, and its aquatic ecosystems affect and are affected by the Earths processes. Specifically, Amazon aquatic ecosystems have been subjected to severe anthropogenic impacts due to deforestation, mining, dam construction, and widespread agribusiness expansion. Therefore, the monitoring of these impacts has become crucial for conservation plans and environmental legislation enforcement. However, its continental dimensions, the high variability of Amazonian water mass constituents, and cloud cover frequency impose a challenge for developing accurate satellite algorithms for water quality retrieval such as chlorophyll-a concentration (Chl-a), which is a proxy for the trophic state. This study presents the first application of the hybrid semi-analytical algorithm (HSAA) for Chl-a retrieval using a Sentinel-3 OLCI sensor over five Amazonian floodplain lakes. Inherent and apparent optical properties (IOPs and AOPs), as well as limnological data, were collected at 94 sampling stations during four field campaigns along hydrological years spanning from 2015 to 2017 and used to parameterize the hybrid SAA to retrieve Chl-a in highly turbid Amazonian waters. We implemented a re-parametrizing approach, called the generalized stacked constraints model to the Amazonian waters (GSCMLAFW), and used it to decompose the total absorption αt(λ) into the absorption coefficients of detritus, CDOM, and phytoplankton (αphy(λ)). The estimated GSCMLAFW αphy(λ) achieved errors lower than 24% at the visible bands and 70% at NIR. The performance of HSAA-based Chl-a retrieval was validated with in situ measurements of Chl-a concentration, and then it was compared to literature Chl-a algorithms. The results showed a smaller mean absolute percentage error (MAPE) for HSAA Chl-a retrieval (36.93%) than empirical Rrs models (73.39%) using a 3-band algorithm, which confirms the better performance of the semi-analytical approach. Last, the calibrated HSAA model was used to estimate the Chl-a concentration in OLCI images acquired during 2017 and 2019 field campaigns, and the results demonstrated reasonable errors (MAPE = 57%) and indicated the potential of OLCI bands for Chl-a estimation. Therefore, the outcomes of this study support the advance of semianalytical models in highly turbid waters and highlight the importance of reparameterization with GSCM and the applicability of HSAA in Sentinel-3 OLCI data. |
| Area | SRE |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Hybrid Semi-Analytical Algorithm... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > LabISA > Hybrid Semi-Analytical Algorithm... |
| Arrangement 3 | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCT > Hybrid Semi-Analytical Algorithm... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | frsen-03-834576.pdf |
| Reader Group | administrator lattes simone |
| Visibility | shown |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3F3NU5S 8JMKD3MGPCW/439EAFB 8JMKD3MGPCW/46KUATE |
| Citing Item List | sid.inpe.br/bibdigital/2013/10.18.22.34 3 sid.inpe.br/bibdigital/2022/04.03.22.23 2 sid.inpe.br/mtc-m21/2012/07.13.14.43.57 2 |
| Host Collection | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notes | |
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination e-mailaddress format isbn lineage mark mirrorrepository month nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url usergroup |
| 7. Description control | |
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