| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m16b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Repository | cptec.inpe.br/adm_conf/2005/10.31.23.25.59 | |||
| Last Update | 2006:04.15.16.28.08 (UTC) administrator | |||
| Metadata Repository | cptec.inpe.br/adm_conf/2005/10.31.23.26 | |||
| Metadata Last Update | 2018:06.05.03.43.04 (UTC) administrator | |||
| Citation Key | LerebourgGarcGarc:2006:CoSeEm | |||
| Title | A comparison between semi-analytical and empirical reflectance model in the case of a high oceanic phytoplankton bloom in the South Western Atlantic ocean  | |||
| Format | CD-ROM, On-line. | |||
| Year | 2006 | |||
| Access Date | 2024, Dec. 26 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 483 KiB | |||
| 2. Context | ||||
| Author | 1 Lerebourg, Christophe Jean-Yves Joel. 2 Garcia, Carlos Alberto Eiras 3 Garcia, Virginia Maria Tavano | |||
| Affiliation | 1 Fundação Universidade Federal do Rio Grande (FURG) Rua Eng. Alfredo Huch, 475 - Centro. 96201-900 - Rio Grande - RS - Brazil | |||
| Author e-Mail Address | 1 dfschris@furg.br 2 dfsgar@furg.br 3 docvmtg@furg.br | |||
| Editor | Vera, Carolina Nobre, Carlos | |||
| e-Mail Address | dfschris@furg.br | |||
| Conference Name | International Conference on Southern Hemisphere Meteorology and Oceanography, 8 (ICSHMO). | |||
| Conference Location | Foz do Iguaçu | |||
| Date | 24-28 Apr. 2006 | |||
| Publisher | American Meteorological Society (AMS) | |||
| Publisher City | 45 Beacon Hill Road, Boston, MA, USA | |||
| Pages | 1305-1309 | |||
| Book Title | Proceedings | |||
| Tertiary Type | Poster | |||
| Organization | American Meteorological Society (AMS) | |||
| History (UTC) | 2005-10-31 23:26:00 :: dfschris@furg.br -> administrator :: 2005-11-26 14:28:08 :: administrator -> adm_conf :: 2005-12-15 23:19:59 :: adm_conf -> dfschris@furg.br :: 2006-03-23 01:37:11 :: dfschris@furg.br -> administrator :: 2006-04-18 21:19:07 :: administrator -> lise@dpi.inpe.br :: 2010-12-28 12:36:49 :: lise@dpi.inpe.br -> administrator :: 2010-12-29 15:59:01 :: administrator -> lise@dpi.inpe.br :: 2006 2010-12-29 16:06:14 :: lise@dpi.inpe.br -> administrator :: 2006 2010-12-29 18:54:44 :: administrator -> banon :: 2006 2011-01-02 17:15:14 :: banon -> administrator :: 2006 2018-06-05 03:43:04 :: administrator -> :: 2006 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Keywords | ocean color empirical model semi-analytical model remote sensing | |||
| Abstract | Semi-analytical (SA) and empirical ocean color algorithms are routinely used to monitor global chlorophyll biomass in the oceans. SA models are particularly attracting since they relate inherent optical properties of the water to measured variables like remote sensing reflectance. In addition to this, SA models have the capacity to derive various parameters from a single remote sensing reflectance. Empirical algorithms make no use of optical theory and are derived from statistical relationship linking remote sensing reflectances with chlorophyll a concentration. Maritorena et. al (2002) has produced a new data set for the chlorophyll specific absorption based on a procedure to optimize SA ocean color models. The resulting SA model: GSM01 is now routinely used by NASA/SeaDAS program. Empirical algorithms are regularly updated as the SeaBASS global database of ocean color data increases but rarely high concentration of chlorophyll have been reported in case 1 waters. During 2004 Brazilian OPERANTAR 23 spring cruise along the Argentinean shelf break a high oceanic phytoplankton bloom of diatoms and dinoflagellates was observed. The dataset consists of 18 stations of radiometric measurements together with chlorophyll concentration measurements along the high chlorophyll band. The radiometric measurements include surface downwelling irradiances and subsurface upwelling radiances measurements from which remote sensing reflectances at five wavelengths (412, 443, 490, 510 and 555 nm) were calculated. The measured surface chlorophyll a concentrations ranged from 1.8 to 19.9 mg.m-3. A SA reflectance model was used to retrieve chlorophyll concentration as well as particulate backscattering and CDOM absorption. The global ocean color empirical algorithms OC2v4 and OC4v4 were used to retrieve chlorophyll concentration. With this dataset, the OC4 performed better than the OC2 (r2 = 0.896, 0.852 for the OC4, OC2 respectively). The SA model showed variable performances depending on the dataset used for the chlorophyll specific absorption. | |||
| Area | MET | |||
| Type | Role of the SH oceans in climate | |||
| doc Directory Content | access | |||
| source Directory Content |
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| agreement Directory Content | there are no files | |||
| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/cptec.inpe.br/adm_conf/2005/10.31.23.25.59 | |||
| zipped data URL | http://urlib.net/zip/cptec.inpe.br/adm_conf/2005/10.31.23.25.59 | |||
| Language | en | |||
| Target File | 1305-1310.pdf | |||
| User Group | dfschris@furg.br administrator | |||
| Visibility | shown | |||
| 5. Allied materials | ||||
| Host Collection | cptec.inpe.br/nobre/2005/06.02.21.14 cptec.inpe.br/walmeida/2003/04.25.17.12 | |||
| 6. Notes | ||||
| Mark | 1 | |||
| Empty Fields | archivingpolicy archivist callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi edition group identifier isbn issn label lineage mirrorrepository nextedition nexthigherunit notes numberofvolumes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey secondarymark serieseditor session shorttitle sponsor subject tertiarymark url versiontype volume | |||