Repository logo
 
Publication

Analysis of the deep chlorophyll maximum across the Azores Front

2000Journal article Open access
Simple item page
dc.contributor.authorMacedo, M.F.
dc.contributor.authorDuarte, Pedro
dc.contributor.authorFerreira, João
dc.contributor.authorAlves, M.por
dc.contributor.authorCosta, V.por
dc.date.accessioned2007-09-14T07:37:35Zpor
dc.date.accessioned2011-10-06T14:40:07Z
dc.date.available2007-09-14T07:37:35Zpor
dc.date.available2011-10-06T14:40:07Z
dc.date.issued2000por
dc.description.abstractPhysical, chemical and biological observations made in late July and August 1997 across the Azores Front (37ºN, 32ºW to 32ºN, 29ºW) are presented. The objectives of the study were: (1) to analyse horizontal and vertical profiles of temperature, salinity, density, nutrients and chlorophyll-a (Chl a) of the top 350 m; (2) to identify the main differences in the deep Chl a Maximum (DCM) and hydrographic structure between the water masses that pass north and south of the Azores Front; and (3) to estimate phytoplankton primary production in these water masses. Horizontal and vertical profiles of salinity, temperature, density, nutrients and phytoplankton pigments in the top 350 m were analysed. The Front separates two distinct water types: the 18 ºC ModeWater (18MW) of subtropical origin, and the 15 ºC ModeWater (15MW) of sub-polar origin. Differences in the DCM and hydrographic structure between 18 MW and 15 MW were observed in the contour plots of each section. The average Chl a concentration between 5 and 200 m depth decreased significantly from 15 MW to 18 MW. The same pattern was observed for the Chl a concentration at the DCM depth. A vertical one-dimensional model was used to estimate the phytoplankton primary production in the 15 MW and 18 MW and led to an estimated water column average gross primary productivity (GPP) between 1.08 and 2.71 mg C mpor
dc.identifier.citationAnalysis of the deep chlorophyll maximum across the Azores Front. Hydrobiologia, 441 (2000), 155 - 172por
dc.identifier.urihttp://hdl.handle.net/10284/282por
dc.language.isoengpor
dc.publisherKluwer Academic Publishers.por
dc.relation.ispartofseriesHydrobiologiapor
dc.relation.ispartofseries441por
dc.subjectdeep chlorophyll-a maximumpor
dc.subjectprimary productionpor
dc.subjectnutriclinepor
dc.titleAnalysis of the deep chlorophyll maximum across the Azores Frontpor
dc.typejournal article
dspace.entity.typePublication
person.familyNameMacedo
person.familyNameDuarte
person.familyNameFerreira
person.givenNameMaria Filomena
person.givenNamePedro
person.givenNameJoão
person.identifier158912
person.identifier.ciencia-idD71B-29B0-FE74
person.identifier.ciencia-idF614-0053-05A5
person.identifier.orcid0000-0003-4366-4192
person.identifier.orcid0000-0001-7461-605X
person.identifier.orcid0000-0001-9614-142X
person.identifier.ridF-1247-2014
person.identifier.scopus-author-id35821442200
person.identifier.scopus-author-id7005201821
person.identifier.scopus-author-id7403252254
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication18d78d0f-5628-496b-a591-2cd462155d32
relation.isAuthorOfPublicationde486bab-75c6-4f98-8ee1-b27b20edbe2d
relation.isAuthorOfPublication8e927b8a-1587-4d89-82c1-bb73bc56b1fa
relation.isAuthorOfPublication.latestForDiscoveryde486bab-75c6-4f98-8ee1-b27b20edbe2d

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Analysis of the deep chlorophyll maximum across the Azores Front .pdf
Size:
507.3 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.82 KB
Format:
Plain Text
Description:
Download

Collections

3ERL - Papers/ Artigos Científicos