EDMED Details

General

Dataset Name

CTD station data in the Strait of Magellan (1991)

Data Holding Centre

University of Trieste, Department of Biology

Time Period

from 22 March to 09 April 1991

Start Date

1991-01-01

End Date

1991-12-31

Project

Geographic Area

Geocoverage

52 CTD stations covering the Pacific edge area of Tierra del Fuego, the Pacific entrance to the Strait of Magellan, the Punta Arenas basin, up to the Atlantic Ocean

Geographic Box (south,north,west,east)

-58, -80, -60, -50

Sea Area

South Atlantic Ocean

South Pacific Ocean

Southern Ocean

Observations

Parameters

Air pressure

Air temperature

Atmospheric humidity

Wind strength and direction

Salinity of the water column

Temperature of the water column

Instruments

Description

Summary

STRAIT OF MAGELLAN PROJECT, Oceanography and sedimentology: an interdisciplinary study of physical, biochemical, and sedimentological features on pre-Antarctic region in the framework of Italian Research Programme in Antarctica (PNRA) - The CTD data were collected in the framework of the monitoring program scheduled with an interdisciplinary approach to study the sedimentology of the basin. In particular, the CTD stations were so distributed: 5 stations in the Pacific Ocean; 6 stations within the Canal Beagle; 2 stations Brazo del Noroeste; 2 stations Canal Ballenero and Brecknock; 3 stations Canal Cockburn; 3 stations Canal Magdalena; 22 stations in the Punta Arenas basin; 9 stations in the Atlantic Ocean. A preliminary data analysis shows the different hydrological features encountered in Canales Beagle, Ballenero, Brecknock, Cockburn and Magdalena. The easternmost stretch of Canal Beagle is affected by the inflow of typically oceanic waters. Beyond the shelf next to the Pacific entrance, the influence of Periantarctic waters in the deep layers of the water column can be observed. The Brazo del Noroeste area of Canal Beagle is characterized by cold, low-salinity waters due to the mixing of sea waters and fluvio-glacial waters flowing down from the wide frozen areas of Cordillera Darwin. In Canales Ballenero, Brecknock and in the southernmost edge of Canales Cockburn and Canal Magdalena more typically marine features can be noticed due to the inflow of waters from the Pacific Ocean through the channels of the southern archipelago. Surface waters in Canal Magdalena are influenced by cold, less salty water coming from the Seno Keats, whereas the deepest layers of the water column seem to be partly influenced by the inflow of low-temperature, high-density water coming from the deepest zones of the Strait of Magellan (Punta Arenas basin).

Originator

University of Trieste, Department of Biology

References

"PANELLA, S., MICHELATO, A., PERDICARO, R., MAGAZZU', G., DECEMBRINI, F. and SCARAZZATO, P.; 1991: A preliminary contribution to understanding the hydrological characteristics of the Strait of Magellan: Austral spring 1989. Boll. Ocean. Teor. Appl., Vol.IX N. 2-3 - April-July 1991" 1991-06-01, unknown, unknown

"CELIO, M.; 1991: Preliminary report on thermohaline features of Canales Beagle, Ballenero, Brecknock, Cockburn and Magdalena (Southern Hemisphere), Autumn 1991. Boll. Ocean. Teor. Appl., Vol. IX N. 2-3 - April-July 1991." 1991-06-01, unknown, unknown

Availability

Availability

by negotiation

Organization

University of Trieste, Department of Biology

Contact

Fonda Umani Serena

Address

University of Trieste, Department of Biology

Trieste

34127

Italy

labbioma@univ.trieste.it

http://www.univ.trieste.it/~biologia/

Administration

Local identifier

1167

Creation Date

2014-10-02

Revision Date

2013-07-25