scholarly journals Circulation, dense water formation, and outflow on the northeast Chukchi Shelf

1998 ◽  
Vol 103 (C4) ◽  
pp. 7647-7661 ◽  
Author(s):  
Thomas J. Weingartner ◽  
Donald J. Cavalieri ◽  
Knut Aagaard ◽  
Yasunori Sasaki
Keyword(s):  
Dense Water ◽  
Water Formation ◽  
Dense Water Formation ◽  
Chukchi Shelf

Dense water formation on the Icelandic shelf and its contribution to the North Icelandic Jet

2021 ◽  
Author(s):  
Yarisbel Garcia‐Quintana ◽  
Nathan Grivault ◽  
Xianmin Hu ◽  
Paul G. Myers
Keyword(s):  
Dense Water ◽  
The North ◽  
Water Formation ◽  
Dense Water Formation

scholarly journals The improvements of the ships of opportunity program in MFS-TEP

Ocean Science ◽  
2007 ◽  
Vol 3 (2) ◽  
pp. 245-258 ◽  
Author(s):  
G. M. R. Manzella ◽  
F. Reseghetti ◽  
G. Coppini ◽  
M. Borghini ◽  
A. Cruzado ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Pilot Project ◽  
Quality Data ◽  
Dense Water ◽  
Short Period ◽  
Water Formation ◽  
Dense Water Formation ◽  
Forecasting System ◽  
Opportunity Program ◽  
The Mediterranean

Abstract. The Ships Of Opportunity Program in the Mediterranean Sea was established at the end of 1999, in the framework of the Mediterranean Forecasting System – Pilot Project (MFS-PP). Many improvements have been made in data collection, transmission and management. Calibration of selected XBTs and a comparison of XBTs vs. CTDs during some research cruises have assured the quality of the data. Transmission now allows receiving data in full resolution by using GSM or satellite telecommunication services; management is offering access to high quality data and view services. The effects of technological and methodological improvements in the observing system are assessed in terms of capability to represent the most important circulation features. The improved methodologies have been tested during the Mediterranean Forecasting System – Toward Environmental Prediction (MFS-TEP) – Targeted Operational Period (MFS-TOP), lasting from September 2004 to February 2005. In spite of the short period of measurements, several important aspects of the Mediterranean Sea circulation have been verified, such as eddies and gyres in the various sub-basins, and dense water formation processes in some of them (vertical homogeneous profiles of about 13°C down to ~800 m in the Provençal, and of about 14.9°C down to ~300 m in the Levantine have allowed defining an index of dense water formation).

Anthropogenic CO2 in a dense water formation area of the Mediterranean Sea

2017 ◽  
Vol 123 ◽  
pp. 118-128 ◽  
Author(s):  
Gianmarco Ingrosso ◽  
Manuel Bensi ◽  
Vanessa Cardin ◽  
Michele Giani
Keyword(s):  
Mediterranean Sea ◽  
Dense Water ◽  
Anthropogenic Co2 ◽  
Water Formation ◽  
Dense Water Formation ◽  
The Mediterranean

scholarly journals Dense water formation in the Gulf of Lions shelf: Impact of atmospheric interannual variability and climate change

2008 ◽  
Vol 28 (15) ◽  
pp. 2092-2112 ◽  
Author(s):  
Marine Herrmann ◽  
Claude Estournel ◽  
Michel Déqué ◽  
Patrick Marsaleix ◽  
Florence Sevault ◽  
...  
Keyword(s):  
Climate Change ◽  
Interannual Variability ◽  
Gulf Of Lions ◽  
Dense Water ◽  
Water Formation ◽  
Dense Water Formation

scholarly journals Dense water formation and circulation in the Barents Sea

2011 ◽  
Vol 58 (8) ◽  
pp. 801-817 ◽  
Author(s):  
M. Årthun ◽  
R.B. Ingvaldsen ◽  
L.H. Smedsrud ◽  
C. Schrum
Keyword(s):  
Barents Sea ◽  
Dense Water ◽  
The Barents Sea ◽  
Water Formation ◽  
Dense Water Formation

scholarly journals On the Connection between Dense Water Formation, Overturning, and Poleward Heat Transport in a Convective Basin*

2006 ◽  
Vol 36 (9) ◽  
pp. 1822-1840 ◽  
Author(s):  
Fiammetta Straneo
Keyword(s):  
Heat Transport ◽  
Numerical Solutions ◽  
Labrador Sea ◽  
Boundary Current ◽  
Overturning Circulation ◽  
Forced Circulation ◽  
Dense Water ◽  
Poleward Heat Transport ◽  
Water Formation ◽  
Dense Water Formation

Abstract An isopycnal, two-layer, idealized model for a convective basin is proposed, consisting of a convecting, interior region and a surrounding boundary current (buoyancy and wind-driven). Parameterized eddy fluxes govern the exchange between the two. To balance the interior buoyancy loss, the boundary current becomes denser as it flows around the basin. Geostrophy imposes that this densification be accompanied by sinking in the boundary current and hence by an overturning circulation. The poleward heat transport, associated with convection in the basin, can thus be viewed as a result of both an overturning and a horizontal circulation. When adapted to the Labrador Sea, the model is able to reproduce the bulk features of the mean state, the seasonal cycle, and even the shutdown of convection from 1969 to 1972. According to the model, only 40% of the poleward heat (buoyancy) transport of the Labrador Sea is associated with the overturning circulation. An exact solution is presented for the linearized equations when changes in the boundary current are small. Numerical solutions are calculated for variations in the amount of convection and for changes in the remotely forced circulation around the basin. These results highlight how the overturning circulation is not simply related to the amount of dense water formed. A speeding up of the circulation around the basin due to wind forcing, for example, will decrease the intensity of the overturning circulation while the dense water formation remains unvaried. In general, it is shown that the fraction of poleward buoyancy (or heat) transport carried by the overturning circulation is not an intrinsic property of the basin but can vary as a result of a number of factors.

scholarly journals Ecosystem effects of dense water formation on deep Mediterranean Sea ecosystems: an overview

2010 ◽  
Vol 1 (1) ◽  
pp. 67-83 ◽  
Author(s):  
Antonio Pusceddu ◽  
Marianna Mea ◽  
Cristina Gambi ◽  
Silvia Bianchelli ◽  
Miquel Canals ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Dense Water ◽  
Ecosystem Effects ◽  
Water Formation ◽  
Dense Water Formation

scholarly journals Approaches to evaluate spatial and temporal variability of deep marine sediment characteristics under the impact of dense water formation events

2020 ◽  
Author(s):  
XAVIER DURRIEU de MADRON ◽  
MARION STABHOLZ ◽  
LARS-ERIC HEIMBÜRGER-BOAVIDA ◽  
DOMINIQUE AUBERT ◽  
PHILIPPE KERHERVÉ ◽  
...  
Keyword(s):  
Spatial Variability ◽  
Temporal Variability ◽  
Small Scale ◽  
Spatial And Temporal Variability ◽  
Geochemical Composition ◽  
Dense Water ◽  
Water Formation ◽  
Dense Water Formation ◽  
Northwestern Mediterranean Sea ◽  
The Impact

Dense shelf water cascading and open-ocean convection frequently occurs in the Gulf of Lions, northwestern Mediterranean Sea. These intense dense water formation events are capable of supplying large amounts of particulate matter as well as remobilizing and dispersing local sediments and, therefore, are thought to leave an imprint on superficial deposits. Here, we compared the spatial variability of the superficial sediment composition (grain size, organic parameters, and metals) at different scales (from decimetric to kilometric) on the continental slope and rise with the temporal variability linked to the occurrence of intense dense water formation events. The spatial and temporal variability of the geochemical composition of deep sediments was assessed using multivariate and geostatistical analysis. The results indicate that, on the outer reach of the Cap de Creus Canyon, where both processes interact, no clear relation was found between the temporal variability of the superficial sediment and the deep-water formation events, and that the small-scale spatial variability of the sediment is masking the temporal variability. Measurements across the southern slope indicate the presence of a somehow distinct geochemical signature that likely results from the influence of recurrent intense, dense water formation events as well as an unabating bottom trawling activity.

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