observations on a flow through a contraction and over a bottom elevation in the Aegean Sea – East Mediterranean

A CTD/ADCP/surface-drifter survey in fall 2004 reveals the behavior of a mesoscale unidirectional flow coming from the Cretan sea in the south with depths ~1000 m and entering a channel-like area of the Cycladic shelf in the north that forms a contraction leading to a bottom elevation (sill depth ~100 m) and then a return into the Cretan Sea in the lee-side of the sill. 

Disciplines

Environment

Keywords

hydraulics of marine flows

Location

39.423393N, 32.31027S, 31.816406E, 19.863281W

Devices

Zipped data of CTD profiles, ADCP profiles and drifter tracks

CTD data (SBE 9 plus unit)
1st line : latitude (east), longitude (north), bottom depth (m), cast depth (dbar), cast depth, year-

2000,  month, day, local hour, local minute
Rest of lines:
Pressure (dbar), Potential temperature (o C), salinity, potential density, dissolved oxygen ml/m, %

light transmission, beam attenuation coefficient, fluorescence

The O2, transmission, attenuation and fluorescence data have not been through quality control.  

ADCP data (RDI 150 kHz instrument)
1st line: station name (label), latitude east, longitude north, number of data lines, bottom depth (m),

 year-2000, month, day, local hour, local minute
Rest of lines:
Depth (m), velocity magnitude, velocity direction (degrees true), u component (east-west), v component

(north-south)

Drifter track data:
Drifters 1 and 6 (surface tracks) in the upper 5-8 m and 15-20 m respectively.  Drifters 8 and 9

(deeper tracks) in the layer 60-80 m.
All lines:
Drifter number, year, month, day, local hour, min, sec, longitude (east), latitude (north)

Data

FileSizeFormatProcessingAccess
CTD profiles
153 KoCSVProcessed data
Current Speed anddirection profiles collecter with Acoustic Doppler Current Profiler
17 KoCSVProcessed data
four drifter tracks (time and position at different depth layers)
12 KoCSVRaw data
How to cite
Kontoyiannis Harilaos (2004). observations on a flow through a contraction and over a bottom elevation in the Aegean Sea – East Mediterranean. SEANOE. https://doi.org/10.17882/90776

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