| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | plutao.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP3W/42M6LCC |
| Repository | sid.inpe.br/plutao/2020/06.16.00.01.31 |
| Last Update | 2020:06.19.12.00.00 (UTC) lattes |
| Metadata Repository | sid.inpe.br/plutao/2020/06.16.00.01.32 |
| Metadata Last Update | 2022:01.04.01.31.15 (UTC) administrator |
| DOI | 10.3390/rs12010040 |
| ISSN | 2072-4292 |
| Label | lattes: 1596449770636962 2 CairoBLNCMFSC:2020:HyChAl |
| Citation Key | CairoBLNCMFSC:2020:HyChAl |
| Title | Hybrid chlorophyll-a algorithm for assessing trophic states of a tropical brazilian reservoir based on MSI/Sentinel-2 data  |
| Year | 2020 |
| Access Date | 2024, May 18 |
| Type of Work | journal article |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 8969 KiB |
| 2. Context | |
| Author | 1 Cairo, Carolline Tressmann 2 Barbosa, Cláudio Clemente Faria 3 Lobo, Felipe de Lucia 4 Novo, Evlyn Márcia Leão de Moraes 5 Carlos, Felipe Menino 6 Maciel, Daniel Andrade 7 Flores Junior, Rogério 8 Silva, Edson Filisbino Freire da 9 Curtarelli, Victor Pedroso |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JGSB 3 4 8JMKD3MGP5W/3C9JH39 |
| ORCID | 1 2 0000-0002-3221-9774 3 0000-0001-8061-0076 4 0000-0002-1223-9276 5 6 0000-0003-4543-5908 |
| Group | 1 SER-SRE-SESPG-INPE-MCTIC-GOV-BR 2 DIDPI-CGOBT-INPE-MCTIC-GOV-BR 3 SER-SRE-SESPG-INPE-MCTIC-GOV-BR 4 DIDSR-CGOBT-INPE-MCTIC-GOV-BR 5 DIDPI-CGOBT-INPE-MCTIC-GOV-BR 6 SER-SRE-SESPG-INPE-MCTIC-GOV-BR 7 DIDPI-CGOBT-INPE-MCTIC-GOV-BR 8 SER-SRE-SESPG-INPE-MCTIC-GOV-BR 9 DIDPI-CGOBT-INPE-MCTIC-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 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 Instituto Nacional de Pesquisas Espaciais (INPE) 8 Instituto Nacional de Pesquisas Espaciais (INPE) 9 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Author e-Mail Address | 1 carolline.cairo@inpe.br 2 claudio.barbosa@inpe.br 3 felipellobo@gmail.com 4 evlyn.novo@inpe.br 5 felipe.carlos@fatec.sp.gov.br 6 damaciel.maciel@hotmail.com 7 rogerio.floresjr@gmail.com 8 edson.freirefs@gmail.com 9 victor.curtarelli@gmail.com |
| Journal | Remote Sensing |
| Volume | 12 |
| Number | 1 |
| Pages | e12010040 |
| Secondary Mark | B3_GEOGRAFIA B3_ENGENHARIAS_I B4_GEOCIÊNCIAS B4_CIÊNCIAS_AMBIENTAIS B5_CIÊNCIAS_AGRÁRIAS_I |
| History (UTC) | 2020-06-16 02:01:39 :: lattes -> administrator :: 2020 2020-06-19 11:55:12 :: administrator -> lattes :: 2020 2020-06-19 12:00:02 :: lattes -> administrator :: 2020 2022-01-04 01:31:15 :: administrator -> simone :: 2020 |
| 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 | Hybrid Chlorophyll-a Algorithm monitoramento da qualidade da água clorofila-a |
| Abstract | Using remote sensing for monitoring trophic states of inland waters relies on the calibration of chlorophyll-a (chl-a) bio-optical algorithms. One of the main limiting factors of calibrating those algorithms is that they cannot accurately cope with the wide chl-a concentration ranges in optically complex waters subject to different trophic states. Thus, this study proposes an optical hybrid chl-a algorithm (OHA), which is a combined framework of algorithms for specific chl-a concentration ranges. The study area is Ibitinga Reservoir characterized by high spatiotemporal variability of chl-a concentrations (31000 mg/m3 ). We took the following steps to address this issue: (1) we defined optical classes of specific chl-a concentration ranges using Spectral Angle Mapper (SAM); (2) we calibrated/validated chl-a bio-optical algorithms for each trophic class using simulated Sentinel-2 MSI (Multispectral Instrument) bands; (3) and we applied a decision tree classifier in MSI/Sentinel-2 image to detect the optical classes and to switch to the suitable algorithm for the given class. The results showed that three optical classes represent different ranges of chl-a concentration: class 1 varies 2.8922.83 mg/m3 , class 2 varies 19.5187.63 mg/m3 , and class 3 varies 75.89938.97 mg/m3 . The best algorithms for trophic classes 1, 2, and 3 are the 3-band (R2 = 0.78; MAPE - Mean Absolute Percentage Error = 34.36%), slope (R2 = 0.93; MAPE = 23.35%), and 2-band (R2 = 0.98; MAPE = 20.12%), respectively. The decision tree classifier showed an accuracy of 95% for detecting SAMs optical trophic classes. The overall performance of OHA was satisfactory (R2 = 0.98; MAPE = 26.33%) using in situ data but reduced in the Sentinel-2 image (R2 = 0.42; MAPE = 28.32%) due to the temporal gap between matchups and the variability in reservoir hydrodynamics. In summary, OHA proved to be a viable method for estimating chl-a concentration in Ibitinga Reservoir and the extension of this framework allowed a more precise chl-a estimate in eutrophic inland waters. |
| Area | SRE |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDPI > Hybrid chlorophyll-a algorithm... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Hybrid chlorophyll-a algorithm... |
| Arrangement 3 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Hybrid chlorophyll-a algorithm... |
| Arrangement 4 | urlib.net > BDMCI > Fonds > LabISA > Hybrid chlorophyll-a 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 | |
| data URL | http://urlib.net/ibi/8JMKD3MGP3W/42M6LCC |
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W/42M6LCC |
| Language | en |
| Target File | cairo_remote.pdf |
| Reader Group | administrator lattes |
| Visibility | shown |
| Archiving Policy | allowpublisher allowfinaldraft |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3EQCCU5 8JMKD3MGPCW/3ER446E 8JMKD3MGPCW/3F3NU5S 8JMKD3MGPCW/439EAFB |
| Citing Item List | sid.inpe.br/bibdigital/2013/10.18.22.34 4 sid.inpe.br/bibdigital/2013/09.09.15.05 2 sid.inpe.br/mtc-m21/2012/07.13.14.43.57 2 |
| Dissemination | WEBSCI; PORTALCAPES; MGA; COMPENDEX; SCOPUS. |
| Host Collection | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn lineage mark mirrorrepository month nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url usergroup |
| 7. Description control | |
| e-Mail (login) | simone |
| update | |