Satellite and High-Spatio-Temporal Resolution Data Collected by Southern Elephant Seals Allow an Unprecedented 3D View of the Argentine Continental Shelf
High spatial and temporal resolution hydrographic data collected by Southern Elephant Seals ( Mirounga leonina, SESs) and satellite remote sensing data allow a detailed oceanographic description of the Argentine Continental Shelf (ACS). In-situ data were obtained from the CTD (Conductivity, Temperat...
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ftdoajarticles:oai:doaj.org/article:2e282828aa204eef895f345318a52261 2024-01-07T09:42:59+01:00 Satellite and High-Spatio-Temporal Resolution Data Collected by Southern Elephant Seals Allow an Unprecedented 3D View of the Argentine Continental Shelf Melina M. Martinez Laura A. Ruiz-Etcheverry Martin Saraceno Anatole Gros-Martial Julieta Campagna Baptiste Picard Christophe Guinet 2023-12-01T00:00:00Z https://doi.org/10.3390/rs15235604 https://doaj.org/article/2e282828aa204eef895f345318a52261 EN eng MDPI AG https://www.mdpi.com/2072-4292/15/23/5604 https://doaj.org/toc/2072-4292 doi:10.3390/rs15235604 2072-4292 https://doaj.org/article/2e282828aa204eef895f345318a52261 Remote Sensing, Vol 15, Iss 23, p 5604 (2023) elephant seal Mirounga leonina Península Valdés (PV) Argentina seasonal front in the north of PV water masses Science Q article 2023 ftdoajarticles https://doi.org/10.3390/rs15235604 2023-12-10T01:36:27Z High spatial and temporal resolution hydrographic data collected by Southern Elephant Seals ( Mirounga leonina, SESs) and satellite remote sensing data allow a detailed oceanographic description of the Argentine Continental Shelf (ACS). In-situ data were obtained from the CTD (Conductivity, Temperature, and Depth), accelerometer, and hydrophone sensors attached to five SESs that crossed the ACS between the 17th and 31st of October 2019. The analysis of the temperature (T) and salinity (S) along the trajectories allowed us to identify two different regions: north and south of 42°S. Satellite Sea Surface Temperature (SST) data suggests that north of 42°S, warm waters are coming from the San Matias Gulf (SMG). The high spatio-temporal resolution of the in-situ data shows regions with intense gradients along the T and S sections that were associated with a seasonal front that develops north of Península Valdés in winter due to the entrance of cold and fresh water to the SMG. The speed of the SESs is correlated with tidal currents in the coastal portion of the northern region, which is in good agreement with the macrotidal regime observed. A large number of Prey Catch Attempts (PCA), a measure obtained from the accelerometer sensor, indicates that SESs also feed in this region, contradicting suggestions from previous works. The analysis of wind intensity estimated from acoustic sensors allowed us to rule out the local wind as the cause of fast thermocline breakups observed along the SESs trajectories. Finally, we show that the maximum depth reached by the elephant seals can be used to detect errors in the bathymetry charts. Article in Journal/Newspaper Elephant Seal Elephant Seals Mirounga leonina Southern Elephant Seals Directory of Open Access Journals: DOAJ Articles Argentina Argentine Remote Sensing 15 23 5604 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
elephant seal Mirounga leonina Península Valdés (PV) Argentina seasonal front in the north of PV water masses Science Q |
spellingShingle |
elephant seal Mirounga leonina Península Valdés (PV) Argentina seasonal front in the north of PV water masses Science Q Melina M. Martinez Laura A. Ruiz-Etcheverry Martin Saraceno Anatole Gros-Martial Julieta Campagna Baptiste Picard Christophe Guinet Satellite and High-Spatio-Temporal Resolution Data Collected by Southern Elephant Seals Allow an Unprecedented 3D View of the Argentine Continental Shelf |
topic_facet |
elephant seal Mirounga leonina Península Valdés (PV) Argentina seasonal front in the north of PV water masses Science Q |
description |
High spatial and temporal resolution hydrographic data collected by Southern Elephant Seals ( Mirounga leonina, SESs) and satellite remote sensing data allow a detailed oceanographic description of the Argentine Continental Shelf (ACS). In-situ data were obtained from the CTD (Conductivity, Temperature, and Depth), accelerometer, and hydrophone sensors attached to five SESs that crossed the ACS between the 17th and 31st of October 2019. The analysis of the temperature (T) and salinity (S) along the trajectories allowed us to identify two different regions: north and south of 42°S. Satellite Sea Surface Temperature (SST) data suggests that north of 42°S, warm waters are coming from the San Matias Gulf (SMG). The high spatio-temporal resolution of the in-situ data shows regions with intense gradients along the T and S sections that were associated with a seasonal front that develops north of Península Valdés in winter due to the entrance of cold and fresh water to the SMG. The speed of the SESs is correlated with tidal currents in the coastal portion of the northern region, which is in good agreement with the macrotidal regime observed. A large number of Prey Catch Attempts (PCA), a measure obtained from the accelerometer sensor, indicates that SESs also feed in this region, contradicting suggestions from previous works. The analysis of wind intensity estimated from acoustic sensors allowed us to rule out the local wind as the cause of fast thermocline breakups observed along the SESs trajectories. Finally, we show that the maximum depth reached by the elephant seals can be used to detect errors in the bathymetry charts. |
format |
Article in Journal/Newspaper |
author |
Melina M. Martinez Laura A. Ruiz-Etcheverry Martin Saraceno Anatole Gros-Martial Julieta Campagna Baptiste Picard Christophe Guinet |
author_facet |
Melina M. Martinez Laura A. Ruiz-Etcheverry Martin Saraceno Anatole Gros-Martial Julieta Campagna Baptiste Picard Christophe Guinet |
author_sort |
Melina M. Martinez |
title |
Satellite and High-Spatio-Temporal Resolution Data Collected by Southern Elephant Seals Allow an Unprecedented 3D View of the Argentine Continental Shelf |
title_short |
Satellite and High-Spatio-Temporal Resolution Data Collected by Southern Elephant Seals Allow an Unprecedented 3D View of the Argentine Continental Shelf |
title_full |
Satellite and High-Spatio-Temporal Resolution Data Collected by Southern Elephant Seals Allow an Unprecedented 3D View of the Argentine Continental Shelf |
title_fullStr |
Satellite and High-Spatio-Temporal Resolution Data Collected by Southern Elephant Seals Allow an Unprecedented 3D View of the Argentine Continental Shelf |
title_full_unstemmed |
Satellite and High-Spatio-Temporal Resolution Data Collected by Southern Elephant Seals Allow an Unprecedented 3D View of the Argentine Continental Shelf |
title_sort |
satellite and high-spatio-temporal resolution data collected by southern elephant seals allow an unprecedented 3d view of the argentine continental shelf |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/rs15235604 https://doaj.org/article/2e282828aa204eef895f345318a52261 |
geographic |
Argentina Argentine |
geographic_facet |
Argentina Argentine |
genre |
Elephant Seal Elephant Seals Mirounga leonina Southern Elephant Seals |
genre_facet |
Elephant Seal Elephant Seals Mirounga leonina Southern Elephant Seals |
op_source |
Remote Sensing, Vol 15, Iss 23, p 5604 (2023) |
op_relation |
https://www.mdpi.com/2072-4292/15/23/5604 https://doaj.org/toc/2072-4292 doi:10.3390/rs15235604 2072-4292 https://doaj.org/article/2e282828aa204eef895f345318a52261 |
op_doi |
https://doi.org/10.3390/rs15235604 |
container_title |
Remote Sensing |
container_volume |
15 |
container_issue |
23 |
container_start_page |
5604 |
_version_ |
1787424241497407488 |