New production of the NW Iberian shelf during the upwelling season over the period 1982–1999
New production (NP) is calculated for NW Iberian shelf waters from 421 to 431N (3500 km2), at the fortnight, upwelling-season (March–October) and inter-annual time-scales. The time series used are (1) upwelling rates (daily values of offshore Ekman transport from 1982 to 1999), (2) bottom shelf temp...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.557.4938 2023-05-15T17:33:50+02:00 New production of the NW Iberian shelf during the upwelling season over the period 1982–1999 X. A. !alvarez-salgadoa S. Belosoa I. Jointb E. Nogueiraa L. Chouc F. F. P!ereza S. Groomb J. M. Cabanasd A. P. Reesb M. Elskense The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.4938 http://www.vub.ac.be/ANCH/publications/Alvarez-Salgado et al 2002.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.4938 http://www.vub.ac.be/ANCH/publications/Alvarez-Salgado et al 2002.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.vub.ac.be/ANCH/publications/Alvarez-Salgado et al 2002.pdf Upwelling Nutrients New production NW Iberian margin text ftciteseerx 2016-01-08T11:50:49Z New production (NP) is calculated for NW Iberian shelf waters from 421 to 431N (3500 km2), at the fortnight, upwelling-season (March–October) and inter-annual time-scales. The time series used are (1) upwelling rates (daily values of offshore Ekman transport from 1982 to 1999), (2) bottom shelf temperatures (twice a week values from 1987 to 1999), and (3) the nutrient–temperature relationships of upwelled Eastern North Atlantic Central Water (ENACW) obtained during 14 hydrographic cruises to the study area (between 1977 and 1998). Marked inter-annual variability is observed, both at the fortnight and the seasonal time-scales. Average NP over the upwelling-season ranged from 330 to 815mg Cm2 d1 (mean, 4907145mg Cm2 d1) in the 1982–1999 period. Large inter-annual changes of upwelling rates are the reason behind the NP fluctuations: 83 % of the variability of NP can be explained by the offshore Ekman Transport ðQX Þ: NP is compared with satellite-derived net microbial community production (NCP) during the 1998– 1999 upwelling seasons, when SeaWiFS images are available. An average upwelling-season NP/NCP ratio of 0.33 was obtained, indicating that 67 % of NCP is respired in situ and 33 % is exported off-shelf to the surrounding oligotrophic ocean. Text North Atlantic Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Upwelling Nutrients New production NW Iberian margin |
spellingShingle |
Upwelling Nutrients New production NW Iberian margin X. A. !alvarez-salgadoa S. Belosoa I. Jointb E. Nogueiraa L. Chouc F. F. P!ereza S. Groomb J. M. Cabanasd A. P. Reesb M. Elskense New production of the NW Iberian shelf during the upwelling season over the period 1982–1999 |
topic_facet |
Upwelling Nutrients New production NW Iberian margin |
description |
New production (NP) is calculated for NW Iberian shelf waters from 421 to 431N (3500 km2), at the fortnight, upwelling-season (March–October) and inter-annual time-scales. The time series used are (1) upwelling rates (daily values of offshore Ekman transport from 1982 to 1999), (2) bottom shelf temperatures (twice a week values from 1987 to 1999), and (3) the nutrient–temperature relationships of upwelled Eastern North Atlantic Central Water (ENACW) obtained during 14 hydrographic cruises to the study area (between 1977 and 1998). Marked inter-annual variability is observed, both at the fortnight and the seasonal time-scales. Average NP over the upwelling-season ranged from 330 to 815mg Cm2 d1 (mean, 4907145mg Cm2 d1) in the 1982–1999 period. Large inter-annual changes of upwelling rates are the reason behind the NP fluctuations: 83 % of the variability of NP can be explained by the offshore Ekman Transport ðQX Þ: NP is compared with satellite-derived net microbial community production (NCP) during the 1998– 1999 upwelling seasons, when SeaWiFS images are available. An average upwelling-season NP/NCP ratio of 0.33 was obtained, indicating that 67 % of NCP is respired in situ and 33 % is exported off-shelf to the surrounding oligotrophic ocean. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
X. A. !alvarez-salgadoa S. Belosoa I. Jointb E. Nogueiraa L. Chouc F. F. P!ereza S. Groomb J. M. Cabanasd A. P. Reesb M. Elskense |
author_facet |
X. A. !alvarez-salgadoa S. Belosoa I. Jointb E. Nogueiraa L. Chouc F. F. P!ereza S. Groomb J. M. Cabanasd A. P. Reesb M. Elskense |
author_sort |
X. A. !alvarez-salgadoa |
title |
New production of the NW Iberian shelf during the upwelling season over the period 1982–1999 |
title_short |
New production of the NW Iberian shelf during the upwelling season over the period 1982–1999 |
title_full |
New production of the NW Iberian shelf during the upwelling season over the period 1982–1999 |
title_fullStr |
New production of the NW Iberian shelf during the upwelling season over the period 1982–1999 |
title_full_unstemmed |
New production of the NW Iberian shelf during the upwelling season over the period 1982–1999 |
title_sort |
new production of the nw iberian shelf during the upwelling season over the period 1982–1999 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.4938 http://www.vub.ac.be/ANCH/publications/Alvarez-Salgado et al 2002.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://www.vub.ac.be/ANCH/publications/Alvarez-Salgado et al 2002.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.4938 http://www.vub.ac.be/ANCH/publications/Alvarez-Salgado et al 2002.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766132473719160832 |