The annual cycle of satellite derived sea surface temperature on the western South Atlantic shelf

Lentini, Carlos A. D.; Campos, Edmo; Podestá, Guillermo

doi:10.1590/s1413-77392000000200001

Cited by 23 publications

(26 citation statements)

References 32 publications

(25 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The monthly mean sea surface temperature in selected locations along the southern Brazil continental shelf do not show any evident trend of change from 1982 to 2008 (Fig. 11b), however records of SST anomalies, mainly caused by the ENSO phenomenon were observed (Lentini et al, 2000). It could be argued that SST may not represent the temperatures in the water column but M. atricauda inhabits shallow coastal waters, mostly under 30 m deep in which stratification is frequently disrupted by alternating southwesterly and northeasterly winds in the region (Möller et al, 2008).…”

Section: Discussionmentioning

confidence: 95%

Age and changes in growth of the king weakfish Macrodon atricauda (Günther, 1880) between 1977 and 2009 in southern Brazil

Cardoso

Haimovici

2011

Fisheries Research

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 95%

Age and changes in growth of the king weakfish Macrodon atricauda (Günther, 1880) between 1977 and 2009 in southern Brazil

Cardoso

Haimovici

2011

Fisheries Research

View full text Add to dashboard Cite

“…Minimum values of 8 -C occur in June (Austral winter) while maximum SST can reach 25 -C in the summer at the core of BC (Goni et al, 1996). Lentini et al (2000) estimated SST annual amplitudes ranging between 4 -C and 13 -C along the shelf at the western South Atlantic Ocean. The authors report that most of this variation is due to the increase of the BC (MC) transport during summer (winter) which contributed for the large SST amplitudes found off the La Plata river.…”

Section: Introductionmentioning

confidence: 90%

“…Time series of SST, surface chlorophyll-a concentration (SCC) and sea level anomalies (SLA) inside the eddy were also analyzed for the period of its existence. Considering that the translation of eddies is an important mechanism of across-front mixing of properties in the ocean (Lentini et al, 2000;Richards & Gould, 1996), it is important to develop an effective method for eddy tracking in areas of oceanographic fronts. Knowing that the use of visible and infrared data has always been a problem owing to persistent cloud cover in the BMC region, this paper also suggests that an application of the Maximum Cross-Correlation (MCC) method (Emery et al, 1986) can be used to automatically account for eddy translation in the BMC.…”

Section: Introductionmentioning

confidence: 99%

Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region

Souza

Mata

Garcia

et al. 2006

Remote Sensing of Environment

View full text Add to dashboard Cite

A warm core eddy was detected south of the Brazil -Malvinas (Falkland) Confluence (BMC) region in satellite images of the southwestern Atlantic Ocean in late 2002. The structure was also sampled by in situ instruments deployed by a ship in 2 days of November 2002. An analysis of satellite data was performed to account for the lifecycle, dimension, surface temperature, surface chlorophyll concentration, surface height anomaly and displacement of the eddy since it was detached from the Brazil Current in September 2002. Satellite data were derived from several sources such as the AMSR-E, MODIS and radar altimeter. The structure lasted 64 days at south of the Brazil -Malvinas Confluence region later being re-assimilated by the Brazil Current return flow. In situ data collected during 2 days showed that the eddy was about 150 m deep, 5.5 -C warmer and 1 practical salinity unit saltier than adjacent waters. The salt anomaly associated to the eddy was estimated as 1.37 Â 10 12 kg while its heat content was 4.24 Â 10 18 J. These are typical estimates for eddies present at the BMC region. Sea surface temperature (SST), chlorophyll concentration, and sea surface height anomaly time series were analyzed for the eddy's center along its trajectory path throughout its lifetime. Mean translational velocities for the eddy during its lifetime were computed from visual interpretation and by using an adaptation of the Maximum Cross-Correlation (MCC) method on AMSR-E SST images. The overall deviation between the two methods was 26%. This suggests that the MCC method has a potential to be applied in monitoring programs to automatically account for the translational velocities of eddies in the BMC region. D

show abstract

“…Lentini et al . [] have estimated annual SST amplitudes of 4–13°C along different latitudes of the SBCS.…”

Section: Introductionmentioning

confidence: 99%

Regional modeling of the water masses and circulation annual variability at the Southern Brazilian Continental Shelf

Mendonça

Souza

Aseff

et al. 2017

J. Geophys. Res. Oceans

View full text Add to dashboard Cite

The Southern Brazilian Continental Shelf (SBCS) is one of the more productive areas for fisheries in Brazilian waters. The water masses and the dynamical processes of the region present a very seasonal behavior that imprint strong effects in the ecosystem and the weather of the area and its vicinity. This paper makes use of the Regional Ocean Modeling System (ROMS) for studying the water mass distribution and circulation variability in the SBCS during the year of 2012. Model outputs were compared to in situ, historical observations and to satellite data. The model was able to reproduce the main thermohaline characteristics of the waters dominating the SBCS and the adjacent region. The mixing between the Subantarctic Shelf Water and the Subtropical Shelf Water, known as the Subtropical Shelf Front (STSF), presented a clear seasonal change in volume. As a consequence of the mixing and of the seasonal oscillation of the STSF position, the stability of the water column inside the SBCS also changes seasonally. Current velocities and associated transports estimated for the Brazil Current (BC) and for the Brazilian Coastal Current (BCC) agree with previous measurements and estimates, stressing the fact that the opposite flow of the BCC occurring during winter in the study region is about 2 orders of magnitude smaller than that of the BC. Seasonal maps of simulated Mean Kinetic Energy and Eddy Kinetic Energy demonstrate the known behavior of the BC and stressed the importance of the mean coastal flow off Argentina throughout the year.

show abstract

The annual cycle of satellite derived sea surface temperature on the western South Atlantic shelf

Cited by 23 publications

References 32 publications

Age and changes in growth of the king weakfish Macrodon atricauda (Günther, 1880) between 1977 and 2009 in southern Brazil

Age and changes in growth of the king weakfish Macrodon atricauda (Günther, 1880) between 1977 and 2009 in southern Brazil

Multi-sensor satellite and in situ measurements of a warm core ocean eddy south of the Brazil–Malvinas Confluence region

Regional modeling of the water masses and circulation annual variability at the Southern Brazilian Continental Shelf

Contact Info

Product

Resources

About