Decadal temperature changes in the Tasman Sea

Sutton, Philip; Bowen, Melissa; Roemmich, Dean

doi:10.1080/00288330.2005.9517396

Cited by 37 publications

(45 citation statements)

References 18 publications

(22 reference statements)

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“…South of the TF, circulation in the Tasman Sea has generally been considered to be weak. Sutton et al (2005) showed decadal variability in subsurface temperature in this region ( Fig. 9), but could find no local forcing mechanisms, leading them to conclude that the signal seen in the Tasman Sea is part of a larger South Pacific-wide phenomenon.…”

Section: East Australian Current and Tasman Frontmentioning

confidence: 92%

“…Sprintall et al (1995) suggested anomalous ocean heat transports in the Tasman Sea may be related to the prolonged ENSO episode that began in early 1991. Sutton et al (2005) documented a large-scale warming extending to at least 800 m in the Tasman Sea between 1996 and 2002, and suggested that the signal seen in the Tasman Sea is part of a larger South Pacific-wide phenomenon.…”

Section: Climate Variability and The Oceansmentioning

confidence: 96%

“…Large-scale interannual variability is shown by generally cooler waters at all depths during the early 1990s compared to the early 2000s. AfterSutton et al (2005). See East Australian Current and Tasman Sea section for more details.…”

mentioning

confidence: 98%

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Physical oceanography of the deep seas around New Zealand: a review

Chiswell

Bostock

Sutton

et al. 2015

New Zealand Journal of Marine and Freshwater Research

205

248

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We review the advances made in 'blue water' physical oceanography of the seas around New Zealand since the last major review in 1985. By 1985, a basic description had been made of the circulation around New Zealand. Since then, dramatic increases in data from satellites, hydrographic cruises, surface drifters and profiling floats have improved knowledge on the locations, strengths and variability of the currents, water masses and fronts in the region. We have better estimates of the surface and deep circulation, and a better understanding of the dynamical processes driving this circulation and its variability. This review covers the open ocean, including water masses, ocean currents, tides and numerical modelling, and discusses the future of New Zealand oceanography.

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Section: East Australian Current and Tasman Frontmentioning

confidence: 92%

Section: Climate Variability and The Oceansmentioning

confidence: 96%

See 1 more Smart Citation

Physical oceanography of the deep seas around New Zealand: a review

Chiswell

Bostock

Sutton

et al. 2015

New Zealand Journal of Marine and Freshwater Research

205

248

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show abstract

“… Obtain long time-series of temperature profiles at approximately repeated locations in order to unambiguously separate temporal from spatial variability [54].…”

Section: High Density Transectsmentioning

confidence: 99%

The Ship of Opportunity Program

Goñi¹

2010

Proceedings of OceanObs'09: Sustained Ocean Observations and Information for Society

106

124

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The Ship Of Opportunity Program (SOOP) is an international World Meteorological Organization (WMO)-IntergovernmentalOceanographic Commission (IOC) program that addresses both scientific and operational goals to contribute to building a sustained ocean observing system. The SOOP main mission is the collection of upper ocean temperature profiles using eXpendable BathyThermographs (XBTs), mostly from volunteer vessels. The XBT deployments are designated by their spatial and temporal sampling goals or modes of deployment (Low Density, Frequently Repeated, and High Density) and sample along well-observed transects, on either large or small spatial scales, or at special locations such as boundary currents and chokepoints, all of which are complementary to the Argo global broad scale array. A multi-national review of the global upper ocean thermal networks carried out in 1999 [1] and presented at the OceanObs'99 conference recommended evolving from broad-scale XBT sampling to increased spatial and temporal transect-based sampling anticipating the implementation of the Argo float network and continued satellite altimetry observations. The objective of the present manuscript is to review the present status of networks against the objectives set during OceanObs'99, to present key scientific contributions of XBT observations, and to offer new perspectives for the future of the XBT network. The commercial shipping industry has changed in the past decade, toward fewer routes and more frequent changes of ships and routing impacting the temporal continuity of some XBT transects. In spite of these changes, many routes now have, in addition to XBT sampling, measurements from ThermoSalinoGraphs (TSGs), eXpendable Conductivity Temperature and Depth (XCTD), partial pressure of CO 2 , Acoustic Doppler Current Profiler (ADCP), Continuous Plankton Recorders (CPR), marine meteorology, fluorescence, and radiometer sensors. In addition, recent studies of the XBT fall rate are being evaluated

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“…The reason behind the maximum in bottom water temperature in 1998-2000 and reduced vertical mixing is probably the unusually warm air temperatures and sea surface temperatures occurring in the region at that time (Sutton et al 2005). Decreased vertical mixing in 1998-2000 has also been observed in other New Zealand lakes (unpubl.…”

Section: Discussionmentioning

confidence: 75%

Effects of nutrient loading on the trophic state of Lake Brunner

Verburg

Horrox

Rutherford

et al. 2013

Mar. Freshwater Res.

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Abstract. Lake Brunner, an oligotrophic monomictic lake on the West Coast of the South Island of New Zealand, is under pressure from urban expansion and increased farming activity, which has led to concern for the effects on water quality in the lake. Epilimnetic nitrogen, phosphorus and chlorophyll a concentrations have increased since 1992, and Secchi depth decreased. This suggests an increased algal productivity caused by increased nutrient inputs, further supported by increased hypolimnetic oxygen depletion since 1992. These observations are likely to have resulted from enhancement of pasture drainage and effluent inputs from expanding dairy farms. The Vollenweider model predicted a mean phosphorus concentration in the lake close to that observed, from estimated catchment loading, suggesting that the Vollenweider model adequately estimated the retention of phosphorous. With the Vollenweider model the effects of potential future loading scenarios were explored. Modelling suggested that a 70% increase in phosphorus loading could turn the lake into a mesotrophic state. Trend analysis of total phosphorus suggests that, with present land uses in the catchment (intensive dairy farming) continuing to develop at the same rate using the same land management practises, this transition to a mesotrophic state will occur by 2040.

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Decadal temperature changes in the Tasman Sea

Cited by 37 publications

References 18 publications

Physical oceanography of the deep seas around New Zealand: a review

Physical oceanography of the deep seas around New Zealand: a review

The Ship of Opportunity Program

Effects of nutrient loading on the trophic state of Lake Brunner

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