Articles | Volume 14, issue 5
https://doi.org/10.5194/os-14-923-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-14-923-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Sep 2018
Research article |
| 03 Sep 2018
| 03 Sep 2018
Moored observations of mesoscale features in the Cape Basin: characteristics and local impacts on water mass distributions
Marine Research Institute, Department of Oceanography – University
of Cape Town, Rondebosch, South Africa
Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, Florida, USA
NOAA/Atlantic Oceanographic and Meteorological Laboratory, Miami, Florida, USA
Tarron Lamont
Marine Research Institute, Department of Oceanography – University
of Cape Town, Rondebosch, South Africa
Oceans and Coastal Research, Department of Environmental Affairs, Cape Town, South Africa
Sabrina Speich
Laboratoire de Météorologie Dynamique, UMR 8539 École Polytechnique, ENS, CNRS, Paris, France
Thierry Terre
IFREMER, Univ. Brest, CNRS, IRD, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM,
Plouzané, France
Remi Laxenaire
Laboratoire de Météorologie Dynamique, UMR 8539 École Polytechnique, ENS, CNRS, Paris, France
Mike J. Roberts
Oceans and Coastal Research, Department of Environmental Affairs, Cape Town, South Africa
Ocean Science & Marine Food Security, Nelson Mandela University, Port Elizabeth, South Africa
Marcel A. van den Berg
Oceans and Coastal Research, Department of Environmental Affairs, Cape Town, South Africa
Isabelle J. Ansorge
Marine Research Institute, Department of Oceanography – University
of Cape Town, Rondebosch, South Africa
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Earth Syst. Sci. Data, 13, 4067–4119, https://doi.org/10.5194/essd-13-4067-2021, https://doi.org/10.5194/essd-13-4067-2021, 2021
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The EUREC4A field campaign, designed to test hypothesized mechanisms by which clouds respond to warming and benchmark next-generation Earth-system models, is presented. EUREC4A comprised roughly 5 weeks of measurements in the downstream winter trades of the North Atlantic – eastward and southeastward of Barbados. It was the first campaign that attempted to characterize the full range of processes and scales influencing trade wind clouds.
Pierre Bosser, Olivier Bock, Cyrille Flamant, Sandrine Bony, and Sabrina Speich
Earth Syst. Sci. Data, 13, 1499–1517, https://doi.org/10.5194/essd-13-1499-2021, https://doi.org/10.5194/essd-13-1499-2021, 2021
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In the framework of the EUREC4A campaign, water vapour measurements were retrieved over the tropical west Atlantic Ocean from GNSS data acquired from three research vessels (R/Vs Atalante, Maria S. Merian and Meteor). The retrievals from R/Vs Atalante and Meteor are shown to be of high quality unlike the results for the R/V Maria S. Merian. These ship-borne retrievals are intended to be used for the description and understanding of meteorological phenomena that occurred during the campaign.
Claudia Christine Stephan, Sabrina Schnitt, Hauke Schulz, Hugo Bellenger, Simon P. de Szoeke, Claudia Acquistapace, Katharina Baier, Thibaut Dauhut, Rémi Laxenaire, Yanmichel Morfa-Avalos, Renaud Person, Estefanía Quiñones Meléndez, Gholamhossein Bagheri, Tobias Böck, Alton Daley, Johannes Güttler, Kevin C. Helfer, Sebastian A. Los, Almuth Neuberger, Johannes Röttenbacher, Andreas Raeke, Maximilian Ringel, Markus Ritschel, Pauline Sadoulet, Imke Schirmacher, M. Katharina Stolla, Ethan Wright, Benjamin Charpentier, Alexis Doerenbecher, Richard Wilson, Friedhelm Jansen, Stefan Kinne, Gilles Reverdin, Sabrina Speich, Sandrine Bony, and Bjorn Stevens
Earth Syst. Sci. Data, 13, 491–514, https://doi.org/10.5194/essd-13-491-2021, https://doi.org/10.5194/essd-13-491-2021, 2021
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The EUREC4A field campaign took place in the western tropical Atlantic during January and February 2020. A total of 811 radiosondes, launched regularly (usually 4-hourly) from Barbados, and 4 ships measured wind, temperature, and relative humidity. They sampled atmospheric variability associated with different ocean surface conditions, synoptic variability, and mesoscale convective organization. The methods of data collection and post-processing for the radiosonde data are described here.
Siren Rühs, Franziska U. Schwarzkopf, Sabrina Speich, and Arne Biastoch
Ocean Sci., 15, 489–512, https://doi.org/10.5194/os-15-489-2019, https://doi.org/10.5194/os-15-489-2019, 2019
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We revisit the sources for the upper limb of the overturning circulation in the South Atlantic by tracking fluid particles in a high-resolution ocean model. Our results suggest that the upper limb’s transport is dominantly supplied by waters with Indian Ocean origin, but the contribution of waters with Pacific origin is substantially larger than previously estimated with coarse-resolution models. Yet, a large part of upper limb waters obtains thermohaline properties within the South Atlantic.
Giuseppe Aulicino, Yuri Cotroneo, Isabelle Ansorge, Marcel van den Berg, Cinzia Cesarano, Maria Belmonte Rivas, and Estrella Olmedo Casal
Earth Syst. Sci. Data, 10, 1227–1236, https://doi.org/10.5194/essd-10-1227-2018, https://doi.org/10.5194/essd-10-1227-2018, 2018
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We present sea surface salinity and temperature data collected across the Atlantic sector of the Southern Ocean by thermosalinographs on board Agulhas-I and Agulhas-II research vessels. After a rigorous quality control, data have been validated through comparison with water samples and independent products. Hence this dataset represents a valuable tool for validating salinity observations provided by SMOS and Aquarius missions and improving the study of climate variability over this region.
Related subject area
Approach: In situ Observations | Depth range: All Depths | Geographical range: Deep Seas: South Atlantic | Phenomena: Temperature, Salinity and Density Fields
Differences between 1999 and 2010 across the Falkland Plateau: fronts and water masses
M. Dolores Pérez-Hernández, Alonso Hernández-Guerra, Isis Comas-Rodríguez, Verónica M. Benítez-Barrios, Eugenio Fraile-Nuez, Josep L. Pelegrí, and Alberto C. Naveira Garabato
Ocean Sci., 13, 577–587, https://doi.org/10.5194/os-13-577-2017, https://doi.org/10.5194/os-13-577-2017, 2017
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The decadal differences between the ALBATROSS (April 1999) and MOC2-Austral (February 2010) hydrographic cruises are analyzed. Changes in the intermediate water masses beneath seem to be very sensitive to the wind conditions existing in their formation area. The Subantarctic Front is wider and weaker in 2010 than in 1999, while the Polar Front remains in the same position and strengthens.
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