Baroclinic transport variability of the Antarctic Circumpolar Current south of Australia (WOCE repeat section SR3)

Rintoul, Stephen R.; Sokolov, Serguei

doi:10.1029/2000jc900107

Cited by 180 publications

(233 citation statements)

References 38 publications

Supporting

Mentioning

205

Contrasting

Order By: Relevance

“…7a. This demonstrates that the ACC volume transports are free from any significant drift, and that the model transports are 10-15 % stronger than observed estimates in Drake Passage and south of Tasmania (Rintoul and Sokolov, 2001;Cunningham et al, 2003). We attribute the lack of drift in the ACC transports to the weak, deep-restoring of temperature and salinity to climatology.…”

Section: Volume Transportsmentioning

confidence: 62%

Evaluation of a near-global eddy-resolving ocean model

et al. 2013

View full text Add to dashboard Cite

Abstract. Analysis of the variability of the last 18 yr (1993)(1994)(1995)(1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012) of a 32 yr run of a new near-global, eddy-resolving ocean general circulation model coupled with biogeochemistry is presented. Comparisons between modelled and observed mean sea level (MSL), mixed layer depth (MLD), sea level anomaly (SLA), sea surface temperature (SST), and chlorophyll a indicate that the model variability is realistic. We find some systematic errors in the modelled MLD, with the model generally deeper than observations, which results in errors in the chlorophyll a, owing to the strong biophysical coupling. We evaluate several other metrics in the model, including the zonally averaged seasonal cycle of SST, meridional overturning, volume transports through key straits and passages, zonally averaged temperature and salinity, and El Niño-related SST indices. We find that the modelled seasonal cycle in SST is 0.5-1.5 • C weaker than observed; volume transports of the Antarctic Circumpolar Current, the East Australian Current, and Indonesian Throughflow are in good agreement with observational estimates; and the correlation between the modelled and observed NINO SST indices exceeds 0.91. Most aspects of the model circulation are realistic. We conclude that the model output is suitable for broader analysis to better understand upper ocean dynamics and ocean variability at mid-and low latitudes. The new model is intended to underpin a future version of Australia's operational short-range ocean forecasting system.

show abstract

Section: Volume Transportsmentioning

confidence: 62%

Evaluation of a near-global eddy-resolving ocean model

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Furthermore, considering the SST gradient pattern in Fig. 10, we feel that a double structure of the PF in the eastern region could exist as it have been repeatedly observed by Rintoul and Sokolov (2001) with branches at 53 o -54 o S and 59 o S.…”

Section: Fine Spatial Structure Of Frontal Zonesmentioning

confidence: 99%

“…However, most studies of the Southern Indian Ocean fronts were carried out during 1980s-1990s (Lutjeharms, 1981;Deacon, 1982;Gambéroni et al, 1982;Edwards and Emery, 1982;Deacon, 1983;Colton and Chase, 1983;Lutjeharms and Valentine, 1984;Belkin, 1989a;Belkin, 1989b;Park et al, 1991;Park et al, 1993;Tomczak and Godfrey, 1994;Orsi et al, 1995;Park and Gambéroni, 1995;Park and Gambéroni, 1997;Rintoul et al, 1997;Neiman et al, 1997;Holliday and Read, 1998;Smythe-Wright et al, 1998;Rintoul and Bullister, 1999;Pakhomov et al, 2000;Pollard and Read, 2001;Park et al, 2001;Rintoul and Sokolov, 2001;Rintoul and Trull, 2001). A comprehensive review of all available meridional hydrographic sections across the fronts located in the region between Greenwich meridian and Tasmania together with published papers, with consideration of the criteria for determination of different fronts, has been made by Belkin and Gordon (1996).…”

Section: Introductionmentioning

confidence: 99%

Fronts in the Southern Indian Ocean as inferred from satellite sea surface temperature data

Kostianoy

Ginzburg

Frankignoulle

et al. 2004

Journal of Marine Systems

100

View full text Add to dashboard Cite

Sea surface temperature (SST) derived from the weekly measurements made by the (Belkin and Gordon, 1996), although some details are different (in particular the larger zonal extent of the NSTF and the wider frontal SST ranges than previously observed).A good correspondence of the measurements made during two hydrographic surveys in the Kerguelen region (22 January-3 February 1999) and in the Tasmania region (3-22 March 1998) with satellite SST and SST gradient maps was found.

show abstract

“…Although modelling studies have hypothesised a link between the SAM and circumpolar ocean transport on these longer timescales [Hall and Visbeck, 2002], observational evidence of this has been crucially lacking. For example, previous investigations of Southern Ocean transport variability have not demonstrated a link between interannual changes in the SAM and circumpolar transport changes in the ocean [Rintoul and Sokolov, 2001;Cunningham et al, 2003;Sprintall, 2003;Sokolov et al, 2004]. As noted by Visbeck and Hall [2004], there remains a need to understand the changes in high-latitude ocean circulation and properties that occur as consequences of variability in the SAM.…”

Section: Introductionmentioning

confidence: 99%

Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode

Meredith

Woodworth

Hughes

et al. 2004

Geophysical Research Letters

118

124

View full text Add to dashboard Cite

We present the first direct evidence that interannual changes in ocean transport through Drake Passage are forced by variability in the Southern Annular Mode (SAM). This evidence is derived from two decades (1980s and 1990s) of subsurface pressure measurements from the tide gauge at Faraday station (western Antarctic Peninsula), combined with the output of an ocean general circulation model. In recent decades, the SAM has moved toward a higher‐index state (stronger circumpolar winds); this trend is not simply monotonic, but is the product of a long‐term change in the seasonality of the SAM. Whilst we cannot address directly the effect of the long‐term trend on circumpolar transport, bottom pressure data from Drake Passage during the 1990s demonstrate that ocean transport showed the same changes in seasonality as did the SAM. This offers a mechanism for atmospheric climate change to influence directly the large‐scale ocean circulation.

show abstract

Baroclinic transport variability of the Antarctic Circumpolar Current south of Australia (WOCE repeat section SR3)

Cited by 180 publications

References 38 publications

Evaluation of a near-global eddy-resolving ocean model

Evaluation of a near-global eddy-resolving ocean model

Fronts in the Southern Indian Ocean as inferred from satellite sea surface temperature data

Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode

Contact Info

Product

Resources

About