Characterizing an anticyclone in Western Mediterranean Sea using altimetric data and an eddy tracker

2021 ◽  
Author(s):  
Cécile Pujol ◽  
Aida Alvera-Azcárate ◽  
Charles Troupin ◽  
Alexander Barth ◽  
Hugo Romanelli
Keyword(s):  
High Resolution ◽  
Mediterranean Sea ◽  
Western Mediterranean ◽  
Anticyclonic Eddy ◽  
Balearic Islands ◽  
Sea Level Anomaly ◽  
Entire Life ◽  
Satellite Sst ◽  
Western Mediterranean Sea ◽  
Altimetric Data

<p>In April 2019, a large anticyclonic Eddy has formed in Western Mediterranean Sea between Sardinia and Balearic Islands. This anticyclone was observable with Sentinel-3 SST satellite data for 7 months and its diameter was estimated to 150 km. Although mesoscale anticyclones are quite common in this part of the Mediterranean Sea, such large and long-live eddies remain exceptional and repercussions for ocean-atmospheric exchanges and for biodiversity might be consequent. However, due to the increase of temperatures during summer, the satellite SST track of the eddy has been lost during a few weeks in August and September. Indeed, the SST signature of the eddy was not distinguishable from surrounding waters anymore. In order to track the eddy during its entire life and have a better understanding of its characteristics, sea level anomaly derived from altimetric data will be analysed in this study with the Py Eddy Tracker toolbox to investigate the variation of its position, its altimetry and its size. The distribution of other remarkable eddies in this zone and period will also be considered. Moreover, a high-resolution SST field will be reconstructed with DINEOF method so the comparison between eddy’s SST and altimetric characteristics will be assured.</p>

Closing the gap: New data on the last documented Myotragus and the first human evidence on Mallorca (Balearic Islands, Western Mediterranean Sea)

The Holocene ◽  
2016 ◽  
Vol 26 (11) ◽  
pp. 1887-1891 ◽  
Author(s):  
Pere Bover ◽  
Alejandro Valenzuela ◽  
Enric Torres ◽  
Alan Cooper ◽  
Joan Pons ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Western Mediterranean ◽  
Balearic Islands ◽  
Western Mediterranean Sea ◽  
Closing The Gap

scholarly journals High-Resolution Observations in the Western Mediterranean Sea: The REP14-MED Experiment

2016 ◽  
Author(s):  
Reiner Onken ◽  
Heinz-Volker Fiekas ◽  
Laurent Beguery ◽  
Ines Borrione ◽  
Andreas Funk ◽  
...  
Keyword(s):  
Time Series ◽  
High Resolution ◽  
Mediterranean Sea ◽  
Western Mediterranean ◽  
Data Set ◽  
Western Mediterranean Sea ◽  
Huge Data ◽  
Operational Forecasting ◽  
Surface Drifters ◽  
Lagrangian Flow

Abstract. The observational part of the REP14-MED experiment was conducted in June 2014 in the Sardo-Balearic Sea west of Sardinia Island (Western Mediterranean Sea). Two research vessels collected high-resolution oceanographic data by means of hydrographic casts, towed systems, and underway measurements. In addition, a vast amount of data was provided by a fleet of 11 gliders, time series were available from moored instruments, and information on Lagrangian flow patterns were obtained from surface drifters and one profiling float. The spatial resolution of the observations encompasses a spectrum over four orders of magnitude from O(101 m) to O(105 m), and the time series from the moored instruments cover a spectral range of five orders from O(101 s) to O(106 s). The objective of this article is to provide an overview of the huge data set which is utilized by various ongoing studies, focusing on (i) sub-mesoscale and mesoscale pattern analyses, (ii) operational forecasting in terms of the development and assessment of sampling strategies, assimilation methods, and model validation, (iii) modeling the variability of the ocean, and (iv) testing of new payloads for gliders.

scholarly journals High-resolution observations in the western Mediterranean Sea: the REP14-MED experiment

Ocean Science ◽  
2018 ◽  
Vol 14 (2) ◽  
pp. 321-335 ◽  
Author(s):  
Reiner Onken ◽  
Heinz-Volker Fiekas ◽  
Laurent Beguery ◽  
Ines Borrione ◽  
Andreas Funk ◽  
...  
Keyword(s):  
Time Series ◽  
High Resolution ◽  
Mediterranean Sea ◽  
Western Mediterranean ◽  
Data Set ◽  
Western Mediterranean Sea ◽  
Huge Data ◽  
Operational Forecasting ◽  
Surface Drifters ◽  
Lagrangian Flow

Abstract. The observational part of the REP14-MED experiment was conducted in June 2014 in the Sardo-Balearic Basin west of Sardinia (western Mediterranean Sea). Two research vessels collected high-resolution oceanographic data by means of hydrographic casts, towed systems, and underway measurements. In addition, a vast amount of data was provided by a fleet of 11 ocean gliders, time series were available from moored instruments, and information on Lagrangian flow patterns was obtained from surface drifters and one profiling float. The spatial resolution of the observations encompasses a spectrum over 4 orders of magnitude from 𝒪(101 m) to 𝒪(105 m), and the time series from the moored instruments cover a spectral range of 5 orders from 𝒪(101 s) to 𝒪(106 s). The objective of this article is to provide an overview of the huge data set which has been utilised by various studies, focusing on (i) water masses and circulation, (ii) operational forecasting, (iii) data assimilation, (iv) variability of the ocean, and (v) new payloads for gliders.

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