Show simple item record

dc.creatorSchneider,Wolfgang
dc.creatorFuenzalida,Rosalino
dc.creatorGarcés-Vargas,José
dc.creatorBravo,Luis
dc.creatorLange,Carina
dc.date2006-10-01
dc.date.accessioned2019-04-24T21:24:04Z
dc.date.available2019-04-24T21:24:04Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-65382006000300016
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/56921
dc.descriptionRecent high-resolution hydrographic measurements (1976-2001) from the eastern South Pacific (ESP) were employed combined with high-resolution data from the World Ocean Circulation Experiment to evaluate the vertical and horizontal extension of the OMZ (oxygen minimum zone, < 20 µmol kg-1) there. Of the six permanent hypoxic regions in the world oceans, the ESP OMZ is volumetrically the fourth largest, occupying 2.74 x 10(6) km³ and accounting for ~11% globally. Examples of variability in the vertical position of the OMZ in the water-column and also in its intensity offshore central Chile will be addressed. We conclude that the OMZ in the ESP is partly based on old, low-oxygen waters from intermediate depths of the North Pacific Ocean, which were further depleted of oxygen off Mexico and Peru, advected into the region along the eastern Pacific coast. Coastal upwelling zones along the eastern Pacific combined with general circulation thus might provide a mechanism that allows the renewal of upper Pacific Deep Water, the oxygen poorest and oldest water mass of the world oceans.
dc.formattext/html
dc.languageen
dc.publisherFacultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
dc.relation10.4067/S0717-65382006000300016
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceGayana (Concepción) v.70 suppl.1 2006
dc.subjectOxygen minimum zone
dc.subjectdissolved oxygen
dc.subjectcoastal upwelling
dc.subjecteastern South Pacific
dc.subjectPeru
dc.subjectChile
dc.titleVertical and horizontal extension of the oxygen minimum zone in the easterns south Pactific Ocean


This item appears in the following Collection(s)

Show simple item record