| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | plutao.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | J8LNKAN8RW/35LDFMB |
| Repository | dpi.inpe.br/plutao@80/2009/07.13.14.21 |
| Last Update | 2010:09.16.13.20.02 (UTC) marciana |
| Metadata Repository | dpi.inpe.br/plutao@80/2009/07.13.14.22.01 |
| Metadata Last Update | 2018:06.05.00.12.38 (UTC) administrator |
| Secondary Key | INPE--PRE/ |
| DOI | 10.3390/s90100528 |
| Label | lattes: 0063119667740811 1 KampelLoBeNuPaRuPo:2009:SiMeCh |
| Citation Key | KampelLoBeNuPaRuPo:2009:SiMeCh |
| Title | Simultaneous Measurements of Chlorophyll Concentration by Lidar, Fluorometry, above-Water Radiometry, and Ocean Color MODIS Images in the Southwestern Atlantic  |
| Year | 2009 |
| Month | Jan. |
| Access Date | 2024, May 28 |
| Type of Work | journal article |
| Number of Files | 1 |
| Size | 487 KiB |
| 2. Context | |
| Author | 1 Kampel, Milton 2 Lorenzzetti, João Antônio 3 Bentz, Cristina Maria 4 Nunes, Raul A. 5 Paranhos, Rodolfo 6 Rudorff, Frederico de Moraes 7 Politano, Alexandre Tadeu |
| Resume Identifier | 1 8JMKD3MGP5W/3C9JHTG 2 8JMKD3MGP5W/3C9JHEF |
| Group | 1 DSR-OBT-INPE-MCT-BR 2 DSR-OBT-INPE-MCT-BR 3 4 5 6 DSR-OBT-INPE-MCT-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), PO Box 38008, 22453-900, Rio de Janeiro, RJ, Brazil 4 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), PO Box 38008, 22453-900, Rio de Janeiro, RJ, Brazil 5 Universidade Federal do Rio de Janeiro (UFRJ), Cidade Universitária, Av. Pau Brasil 211, Ilha do Fundão, 21941-590, Rio de Janeiro, RJ, Brazil 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 PETROBRAS/CENPES, Cidade Universitária, Q.7, Ilha do Fundão, 21949-900, Rio de Janeiro, RJ, Brazil |
| Author e-Mail Address | 1 milton@dsr.inpe.br 2 loren@dsr.inpe.br 3 4 5 6 fmr@sds.sc.gov.br |
| e-Mail Address | milton@dsr.inpe.br |
| Journal | Sensors |
| Volume | 9 |
| Number | 1 |
| Pages | 528-541 |
| History (UTC) | 2009-07-13 17:05:11 :: lattes -> marciana :: 2009-07-24 16:20:06 :: marciana -> administrator :: 2010-05-12 02:04:20 :: administrator -> marciana :: 2011-12-06 13:23:06 :: marciana -> administrator :: 2009 2016-06-04 01:08:33 :: administrator -> marciana :: 2009 2016-10-04 17:48:11 :: marciana -> administrator :: 2009 2018-06-05 00:12:38 :: administrator -> marciana :: 2009 |
| 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 concentration Chlorophyll-a concentration Fluorometry Moderate resolution imaging spectroradiometer MODIS Ocean color remote sensing Radiometric measurements Simultaneous measurement Algorithms Chlorophyll Estimation Fluorometers Image reconstruction Oceanography Optical radar Radiometry Remote sensing Satellites Radiometers |
| Abstract | Comparisons between in situ measurements of surface chlorophyll-a concentration (CHL) and ocean color remote sensing estimates were conducted during an oceanographic cruise on the Brazilian Southeastern continental shelf and slope, Southwestern South Atlantic. In situ values were based on fluorometry, above-water radiometry and lidar fluorosensor. Three empirical algorithms were used to estimate CHL from radiometric measurements: Ocean Chlorophyll 3 bands (OC3M(RAD)), Ocean Chlorophyll 4 bands (OC4v4(RAD)), and Ocean Chlorophyll 2 bands (OC2v4(RAD)). The satellite estimates of CHL were derived from data collected by the MODerate-resolution Imaging Spectroradiometer (MODIS) with a nominal 1.1 km resolution at nadir. Three algorithms were used to estimate chlorophyll concentrations from MODIS data: one empirical - OC3M(SAT), and two semi-analytical - Garver, Siegel, Maritorena version 01 (GSM01(SAT)), and Carder(SAT). In the present work, MODIS, lidar and in situ above-water radiometry and fluorometry are briefly described and the estimated values of chlorophyll retrieved by these techniques are compared. The chlorophyll concentration in the study area was in the range 0.01 to 0.2 mg/m(3). In general, the empirical algorithms applied to the in situ radiometric and satellite data showed a tendency to overestimate CHL with a mean difference between estimated and measured values of as much as 0.17 mg/m(3) (OC2v4(RAD)). The semi-analytical GSM01 algorithm applied to MODIS data performed better (rmse 0.28, rmse-L 0.08, mean diff. -0.01 mg/m(3)) than the Carder and the empirical OC3M algorithms (rmse 1.14 and 0.36, rmse-L 0.34 and 0.11, mean diff. 0.17 and 0.02 mg/m(3), respectively). We find that rmsd values between MODIS relative to the in situ radiometric measurements are < 26%, i.e., there is a trend towards overestimation of R-RS by MODIS for the stations considered in this work. Other authors have already reported over and under estimation of MODIS remotely sensed reflectance due to several errors in the bio-optical algorithm performance, in the satellite sensor calibration, and in the atmospheric-correction algorithm. |
| Area | SRE |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Simultaneous Measurements of... |
| 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://plutao.sid.inpe.br/ibi/J8LNKAN8RW/35LDFMB |
| zipped data URL | http://plutao.sid.inpe.br/zip/J8LNKAN8RW/35LDFMB |
| Language | en |
| Target File | pdfmilton.pdf |
| User Group | administrator lattes marciana |
| Reader Group | administrator marciana |
| Visibility | shown |
| Archiving Policy | allowpublisher allowfinaldraft |
| Read Permission | allow from all |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ER446E |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.50.46 6 sid.inpe.br/mtc-m21/2012/07.13.14.56.38 1 |
| URL (untrusted data) | http://www.mdpi.com/1424-8220/9/1/528/ |
| Dissemination | WEBSCI |
| Host Collection | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notes | |
| Notes | DOAJ Directory of Open Access Journals Free |
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn issn lineage mark mirrorrepository nextedition orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarymark secondarytype session shorttitle sponsor subject tertiarymark tertiarytype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |