FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1984228889> ?p ?o ?g. }

• W1984228889 endingPage "54" @default.
• W1984228889 startingPage "1" @default.
• W1984228889 abstract "The principal system of deep western-boundary currents in the subtropical South Pacific is that in the Southwest Pacific Basin, which transports Circumpolar Deep Water northward and Pacific Deep Water (at mid-depths) southward. The WOCE PCM9 current-meter array was placed across this system at Lat. 32° 30′S in order to measure the mean transports of those components and their variations. The array, consisting of 60 current meters on 20 moorings, extended 1000 km eastward from the Tonga–Kermadec Ridge, and remained in place for 22 months, between February 1991 and December 1992. The instruments were situated approximately at 2500 m, 4000 m, and close to the bottom. CTD sections (including dissolved oxygen and nutrients) were occupied along the array during its deployment and recovery, and, in between, by the WOCE transpacific section P6. Density sections were used to construct objectively-mapped fields of geostrophic velocity, which were adjusted using current-meter data as integration constants to provide snapshots of the full velocity field. The resulting adjusted transports sometimes differed substantially from relative geostrophic transports, but agreed quite well with transports calculated from current records alone. A time series of volume transport was derived from objectively-mapped three-day-averaged currents. The boundary-current system at PCM9 was essentially 700 km wide, with flow most intense on the flank of the Tonga–Kermadec Ridge, where the maximum mean velocity vector had a magnitude of 9.6 cm s−1. The time-averaged transport, integrated horizontally across the array and from 2000 m to the bottom, was 16.0×106±11.9×106 m3 s−1 northward. Of this roughly 15.8×106±9.2×106 m3 s−1 was northward flow of Circumpolar Deep Water, and 0.2×106±5.1×106 m3 s−1 was northward flow of Pacific Deep Water. Even for the 22-month mean, however, the velocity field was strikingly banded vertically, and there was little impression of a zero-velocity surface following the demarcation between Circumpolar Deep Water and Pacific Deep Water across the section; only in the horizontally integrated sense was there a correspondence between water masses and the variation of transport with depth. The very large variability in transport is associated with prominent oscillations of periods near 50 days, 20 days, and 10 days, as well as with strong events distributed irregularly across the array that lead to a concentration of spectral energy in a band between 40 and 200 days. The origins of these disturbances are not known. While unexpectedly large changes in the density field near the Tonga–Kermadec Ridge were observed from one cruise to another, the huge fluctuations in transport seemed to be connected more with velocity signals varying only slowly with depth. No measurable changes in water-mass properties were detected by the cruises during the 22 months of deployment, but the salinity was about 0.01 lower at the salinity maximum in the Circumpolar Deep Water than it had been 25 years earlier. The direct, long-term transport measurement suggests that the total upwelling at 2000 m north of 30° S is 13×106 m3 s−1, corresponding to an areally-averaged vertical velocity of 1.0×10−5 cm s−1. This is substantially smaller than earlier values, and it helps to reduce estimates of the global deep upwelling closer to those of the global deep downwelling. The small value of Pacific Deep Water transport in the boundary-current system, relative to that of Circumpolar Deep Water, implies, within the framework of the Stommel–Arons dynamics, that little of the deep water entering the Pacific from the Antarctic returns southward at mid-depths. If so, then some present-day circulation schemes and budgetary constructions need to be re-assessed." @default.
• W1984228889 created "2016-06-24" @default.
• W1984228889 creator A5001121680 @default.
• W1984228889 creator A5008334396 @default.
• W1984228889 creator A5011438301 @default.
• W1984228889 creator A5042685090 @default.
• W1984228889 creator A5062830836 @default.
• W1984228889 creator A5066559442 @default.
• W1984228889 date "1999-01-01" @default.
• W1984228889 modified "2023-10-16" @default.
• W1984228889 title "On the deep western-boundary current in the Southwest Pacific Basin" @default.
• W1984228889 cites W1591668092 @default.
• W1984228889 cites W1966087894 @default.
• W1984228889 cites W1966980417 @default.
• W1984228889 cites W1967892240 @default.
• W1984228889 cites W1969775148 @default.
• W1984228889 cites W1980872241 @default.
• W1984228889 cites W1982069959 @default.
• W1984228889 cites W1987864840 @default.
• W1984228889 cites W1991675964 @default.
• W1984228889 cites W1996415129 @default.
• W1984228889 cites W1997677842 @default.
• W1984228889 cites W1998385183 @default.
• W1984228889 cites W2005662711 @default.
• W1984228889 cites W2007493419 @default.
• W1984228889 cites W2013514625 @default.
• W1984228889 cites W2017668663 @default.
• W1984228889 cites W2019885508 @default.
• W1984228889 cites W2021419573 @default.
• W1984228889 cites W2026611721 @default.
• W1984228889 cites W2035289918 @default.
• W1984228889 cites W2041523115 @default.
• W1984228889 cites W2049037819 @default.
• W1984228889 cites W2051034685 @default.
• W1984228889 cites W2052068379 @default.
• W1984228889 cites W2055663445 @default.
• W1984228889 cites W2062480296 @default.
• W1984228889 cites W2065728319 @default.
• W1984228889 cites W2069057280 @default.
• W1984228889 cites W2073369483 @default.
• W1984228889 cites W2074144113 @default.
• W1984228889 cites W2082465017 @default.
• W1984228889 cites W2086710795 @default.
• W1984228889 cites W2087060090 @default.
• W1984228889 cites W2094442082 @default.
• W1984228889 cites W2095546194 @default.
• W1984228889 cites W2123904016 @default.
• W1984228889 cites W2130767924 @default.
• W1984228889 cites W2133507371 @default.
• W1984228889 cites W2135455326 @default.
• W1984228889 cites W2158610056 @default.
• W1984228889 cites W2174228892 @default.
• W1984228889 cites W2175735017 @default.
• W1984228889 cites W2175938238 @default.
• W1984228889 cites W2176182471 @default.
• W1984228889 cites W2179103260 @default.
• W1984228889 cites W2257443135 @default.
• W1984228889 cites W2322703916 @default.
• W1984228889 doi "https://doi.org/10.1016/s0079-6611(99)00005-1" @default.
• W1984228889 hasPublicationYear "1999" @default.
• W1984228889 type Work @default.
• W1984228889 sameAs 1984228889 @default.
• W1984228889 citedByCount "112" @default.
• W1984228889 countsByYear W19842288892012 @default.
• W1984228889 countsByYear W19842288892013 @default.
• W1984228889 countsByYear W19842288892015 @default.
• W1984228889 countsByYear W19842288892016 @default.
• W1984228889 countsByYear W19842288892017 @default.
• W1984228889 countsByYear W19842288892018 @default.
• W1984228889 countsByYear W19842288892019 @default.
• W1984228889 countsByYear W19842288892020 @default.
• W1984228889 countsByYear W19842288892021 @default.
• W1984228889 countsByYear W19842288892022 @default.
• W1984228889 countsByYear W19842288892023 @default.
• W1984228889 crossrefType "journal-article" @default.
• W1984228889 hasAuthorship W1984228889A5001121680 @default.
• W1984228889 hasAuthorship W1984228889A5008334396 @default.
• W1984228889 hasAuthorship W1984228889A5011438301 @default.
• W1984228889 hasAuthorship W1984228889A5042685090 @default.
• W1984228889 hasAuthorship W1984228889A5062830836 @default.
• W1984228889 hasAuthorship W1984228889A5066559442 @default.
• W1984228889 hasConcept C111368507 @default.
• W1984228889 hasConcept C127313418 @default.
• W1984228889 hasConcept C133877212 @default.
• W1984228889 hasConcept C140302290 @default.
• W1984228889 hasConcept C14168384 @default.
• W1984228889 hasConcept C148043351 @default.
• W1984228889 hasConcept C151730666 @default.
• W1984228889 hasConcept C187599188 @default.
• W1984228889 hasConcept C193163614 @default.
• W1984228889 hasConcept C2779365185 @default.
• W1984228889 hasConcept C30380174 @default.
• W1984228889 hasConcept C32277403 @default.
• W1984228889 hasConcept C505870484 @default.
• W1984228889 hasConcept C52526452 @default.
• W1984228889 hasConcept C60069189 @default.
• W1984228889 hasConcept C86803240 @default.
• W1984228889 hasConceptScore W1984228889C111368507 @default.

• next