Thermohaline circulation and dynamic structure of the north aegean
Download
1 / 21

THERMOHALINE CIRCULATION AND DYNAMIC STRUCTURE OF THE NORTH AEGEAN - PowerPoint PPT Presentation


  • 104 Views
  • Uploaded on

THERMOHALINE CIRCULATION AND DYNAMIC STRUCTURE OF THE NORTH AEGEAN. Dimitris GEORGOPOULOS National Centre for Marine Research. EXISTING DATA. GEOMORFOLOGY. 1908-1984. 1985-1999. METEOROLOGICAL CONDITIONS. The prevailing winds are northerlies

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'THERMOHALINE CIRCULATION AND DYNAMIC STRUCTURE OF THE NORTH AEGEAN' - konane


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Thermohaline circulation and dynamic structure of the north aegean

THERMOHALINE CIRCULATION AND DYNAMIC STRUCTURE OF THE NORTH AEGEAN

Dimitris GEORGOPOULOS

National Centre for Marine Research

Rhodes - 8 to 11 October 2002


Geomorfology

EXISTING DATA AEGEAN

GEOMORFOLOGY

1908-1984

1985-1999


Meteorological conditions
METEOROLOGICAL CONDITIONS AEGEAN

  • The prevailing winds are northerlies

  • The secondary peak in frequency are Southerlies


Etesian winds
ETESIAN WINDS AEGEAN

NOAA-AVHRR

31-8-87

Visible


Upewllings
UPEWLLINGS AEGEAN

NOAA-AVHRR

HRPT

of 4-9-1987

Summer wind stress distribution in the Mediterrenean


Water masses
WATER MASSES AEGEAN

  • Black Sea Water (BSW)

  • Old BSW

  • Levantine Surface Water (LSW)

  • Levantine Intermediate Water (LIW)

  • Deep and Bottom Water (DW)

*

*


The distribution of bsw and lsw
The distribution of BSW and LSW AEGEAN

  • BSW occupies the northern and western parts of the N. Aegean

  • The LSW occupies the eastern part of the Aegean up to the Limnos Plateau

BSW

BSW

LSW



Thermohaline circulation and dynamic structure of the north aegean
BSW AEGEAN

Seasonal varibility of the BSW at station in the Limnos basin.

The net exchange through Dardanelles fluctuates from 200km3/yr to 1000km3/yr.

The mean inflow in the AEGEAN is 1257km3/yr and outflow from the AEGEAN is 957km3/yr

*


Thermohaline circulation and dynamic structure of the north aegean

LIA-4 AEGEAN

Nov.-86

LIA-5

Mar.-87

LSW

LIA-6

Aug.-87

LIA-3

Sept.-86



Distribution of liw
DISTRIBUTION OF AEGEANLIW

AUGUST-SEPTEMBER 1986


Distribution of liw1
DISTRIBUTION OF LIW AEGEAN

AUGUST-SEPTEMBER

1987


Deep and bottom water of the n aegean
DEEP AND BOTTOM WATER AEGEANOF THE N. AEGEAN

*

Mean minimum temperature during the last 48 years in Alexandroupolis meteo station

-0.1

1987



10 year changes in the n aegean
10 year changes in the N. Aegean AEGEAN

The recent history of the Limnos Basin

1986

1987 - 1988

1993

1997


10 year changes in the n aegean1
10 year changes in the N. Aegean AEGEAN

The recent history of the North Skyros Basin

1986

1987

1988

1997



Thermohaline circulation and dynamic structure of the north aegean

SOURCES OF DEEP WATER IN THE N. AEGEAN AEGEAN

BSW

?

NAeW

?

?

?

NAeW

?

LIW

?

LSW

NAeW


Thermohaline circulation and dynamic structure of the north aegean

CONVEYOR BELT CONNECTING THE NORTH AND SOUTH AEGEAN AEGEAN

και plateau

Θερμαϊκού


The dynamic structure

LIA- AEGEAN5

March 87

THE DYNAMIC STRUCTURE

LIA-3

August 86

  • MAIN DYNAMIC FEATURES

  • Cyclone of Chios basin

  • Anticyclones along the periphery of the Chios Cyclone

  • North Sporades Cyclone

  • Samothraki Anticyclone

  • Athos anticyclone

  • Current of the Eastern Aegean

  • Thermohaline front of Limnos

  • Thermohaline fronts where BSW meetLSW/LIW

  • Upwellings

LIA-4

November 86

LIA-6

August 87