The variability of the hydrological fronts in the Peru-Chilean region using SST satellite data

Artamonov, Ju. V.; Skripaleva, E. A.

doi:10.33275/1727-7485.4-5.2006.535

Cited by 2 publications

(5 citation statements)

References 2 publications

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“…8). Across the entire study area (100°W-78°W), the cross-frontal gradient peaks during the austral summer and weakens during the austral winter, which is opposite to the findings by Artamonov and Skripaleva (2006) and Artamonov and Skripaleva (2008) presented above, especially with regard to the main and southern branch of the STF that feature very weak cross-frontal gradients during the austral summer (February-March).…”

Section: South Pacific Currentcontrasting

confidence: 90%

“…7), which is consistent with similar results by Artamonov and Skripaleva (2008). This consistency throws some doubt onto the six-degree-of-latitude annual amplitude of seasonal migrations along 84°W determined earlier by Artamonov and Skripaleva (2006). Gordeeva and Malinin ( 2006) also studied seasonal and spatial variability of cross-frontal SST gradient (Fig.…”

Section: South Pacific Currentsupporting

confidence: 52%

“…This two-front structure is remarkably consistent with the double-front structure (North and South STF) found by Belkin (1988) farther west. Artamonov and Skripaleva (2006) reported seasonal variability of both fronts, including their latitude, meridional SST gradient, and axial SST (Fig. 3).…”

Section: Satellite Oceanography Of the Stfz In The Southeast Pacificmentioning

confidence: 99%

“…V. Artamonov and collaborators (Artamonov and Skripaleva, 2006;Artamonov and Skripaleva, 2008;Artamonov et al, 2009) identified fronts with local maxima of meridional SST gradient. In a pilot study, Artamonov and Skripaleva (2006) detected the STF along 84°W. Instead of a single STF as expected, they found two fronts separated by 3° of latitude.…”

Section: Satellite Oceanography Of the Stfz In The Southeast Pacificmentioning

confidence: 99%

“…5). In addition to the northern branch and main branch of the STF identified by Artamonov and Skripaleva (2006) along 84°W, Artamonov and Skripaleva (2008) identified the southern branch of the STF. (1992)(1993)(1994)(1995)(1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003).…”

Section: Satellite Oceanography Of the Stfz In The Southeast Pacificmentioning

confidence: 99%

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Remote Sensing of the Subtropical Front in the Southeast Pacific and the Ecology of Chilean Jack Mackerel <em>Trachurus murphyi</em>

Belkin¹,

Shen²

2022

Preprint

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The Subtropical Front (STF) plays a key role in the ecology of Chilean jack mackerel Trachurus murphyi. Nonetheless, there are few remote sensing studies of the STF in the open Southeast Pacific Ocean, and almost all of them have been conducted by satellite oceanographers in Russia and Ukraine to support respective large-scale fisheries of jack mackerel in this region. We reviewed these studies that documented long-term seasonal and interannual variability of the STF from sea surface temperature (SST) and sea surface height (SSH) data. We also mapped the STF from satellite sea surface salinity (SSS) data of the SMOS mission (2012-2019). The Subtropical Front consists of two fronts -- North and South STF about 500 km apart -- that border the Subtropical Frontal Zone (STFZ) in-between. The STF is density-compensated, with spatially divergent manifestations in temperature and salinity. In the temperature field, the STF extends in the WNW to ESE direction in the Southeast Pacific. In the salinity field, the STFZ appears as a broad frontal zone, extending zonally between 30-35°S across the entire South Pacific. Three major types of satellite data – SST, SSH, and SSS – can be used to locate the STF. The SSH data is most advantageous with regard to the jack mackerel fisheries owing to the all-weather capability of satellite altimetry and the radical improvement of the spatial resolution of SSH data in the near future. Despite the dearth of dedicated in situ studies of the South Pacific STFZ, there is a broad consensus regarding the STFZ being the principal spawning and nursing ground of T. murphyi as well as a major migration corridor between Chile and New Zealand.

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Section: South Pacific Currentcontrasting

confidence: 90%

Section: South Pacific Currentsupporting

confidence: 52%

Section: Satellite Oceanography Of the Stfz In The Southeast Pacificmentioning

confidence: 99%

Section: Satellite Oceanography Of the Stfz In The Southeast Pacificmentioning

confidence: 99%

Section: Satellite Oceanography Of the Stfz In The Southeast Pacificmentioning

confidence: 99%

See 3 more Smart Citations

Remote Sensing of the Subtropical Front in the Southeast Pacific and the Ecology of Chilean Jack Mackerel <em>Trachurus murphyi</em>

Belkin¹,

Shen²

2022

Preprint

View full text Add to dashboard Cite

show abstract

Remote Sensing of the Subtropical Front in the Southeast Pacific and the Ecology of Chilean Jack Mackerel Trachurus murphyi

Belkin

Shen

2023

Fishes

View full text Add to dashboard Cite

The Subtropical Front (STF) plays a key role in the ecology of Chilean jack mackerel Trachurus murphyi. Nonetheless, there are few remote sensing studies of the STF in the open Southeast Pacific, and almost all of them have been conducted by satellite oceanographers in Russia and Ukraine to support respective large-scale fisheries of jack mackerel in this region. We reviewed these studies that documented long-term seasonal and interannual variability of the STF from sea surface temperature (SST) and sea surface height (SSH) data. We also mapped the STF from satellite sea surface salinity (SSS) data of the SMOS mission (2012–2019). The Subtropical Front consists of two fronts–North and South STF about 500 km apart–that border the Subtropical Frontal Zone (STFZ) in-between. The STF is density-compensated, with spatially divergent manifestations in temperature and salinity. In the temperature field, the STF extends in the WNW to ESE direction in the Southeast Pacific. In the salinity field, the STFZ appears as a broad frontal zone, extending zonally across the entire South Pacific. Three major types of satellite data-SST, SSH, and SSS-can be used to locate the STF. The SSH data is most advantageous with regard to the jack mackerel fisheries, owing to the all-weather capability of satellite altimetry and the radical improvement of the spatial resolution of SSH data in the near future. Despite the dearth of dedicated in situ studies of the South Pacific STFZ, there is a broad consensus regarding the STFZ being the principal spawning and nursing ground of T. murphyi and a migration corridor between Chile and New Zealand. Major data/knowledge gaps are identified, and key next steps are proposed to mitigate the data/knowledge gaps and inform fisheries management.

show abstract

The variability of the hydrological fronts in the Peru-Chilean region using SST satellite data

Cited by 2 publications

References 2 publications

Remote Sensing of the Subtropical Front in the Southeast Pacific and the Ecology of Chilean Jack Mackerel <em>Trachurus murphyi</em>

Remote Sensing of the Subtropical Front in the Southeast Pacific and the Ecology of Chilean Jack Mackerel <em>Trachurus murphyi</em>

Remote Sensing of the Subtropical Front in the Southeast Pacific and the Ecology of Chilean Jack Mackerel Trachurus murphyi

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