TELEMAC MODELING in the IZMIR BAY byDEU-SUMER Water Resources Management Research and Application...
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Transcript of TELEMAC MODELING in the IZMIR BAY byDEU-SUMER Water Resources Management Research and Application...
TELEMAC MODELINGTELEMAC MODELINGin the IZMIR BAYin the IZMIR BAY
byby
DEU-SUMER DEU-SUMER Water Resources Management Research and Water Resources Management Research and
Application CenterApplication CenterIzmir, TurkeyIzmir, Turkey
TRANSFER OF GEOSPATIAL DATATRANSFER OF GEOSPATIAL DATA
Geospatial Base Data
- Water Depths
- Isolines
- Sea-Land Border
- Derived DEM Geospatial Data transferred into SX file format
GENERATION OF ELEVATION MODEL (MESH)GENERATION OF ELEVATION MODEL (MESH)
DEM
Mesh
Mesh with boundaries
REGENERATING THE MESH FOR EASY REGENERATING THE MESH FOR EASY COMPUTINGCOMPUTING
Number of Nodes
25,292 nodes 4701 nodes
Based on bathimetry Considering a derived criterion
BOUNDARIES OF THE CONTROL VOLUME/AREABOUNDARIES OF THE CONTROL VOLUME/AREA
Gediz River Outlet
Deep Sea (Aegean Sea)
Boundaries: Deep Sea (liquid boundary) River Outlet (liquid boundary) Coastline & islands (solid boundaries)
CALIBRATION DATA SET (EXAMPLES)CALIBRATION DATA SET (EXAMPLES)Control Point 1:
Long: 26.78 Lat: 38.57
X: 480835 Y: 4269080 (UTM-35)
For the period of 23-30.09.1994
At 10m. depth
Max. Velocity : 10.50 cm/sec
Avg. Velocity : 3.93 cm/sec (0.0393m/sec)
At 25m. Depth
Max. Velocity : 9.60 cm/sec
Avg. Velocity : 3.55 cm/sec (0.0355m/sec)
0
0,5
1
1,5
2
2,5
0 20000 40000 60000 80000 100000
Seri 1
Output to Excel in .num format
Average~0.2m/sec
CALIBRATION DATA SET (EXAMPLES)CALIBRATION DATA SET (EXAMPLES)
Control Point 2:
Long: 26.68 Lat: 38.52
X: 472104 Y: 4263560 (UTM-35)
For the period of 23-30.09.1994
At 10m. depth
Max. Velocity : 11.40 cm/sec
Avg. Velocity : 6.30 cm/sec (0.060m/sec)
At 25m. Depth
Max. Velocity : 12.20 cm/sec
Avg. Velocity : 4.86 cm/sec (0.0486m/sec)
0
0,2
0,4
0,6
0,8
1
1,2
1,4
1,6
1,8
2
0 20000 40000 60000 80000 100000
Seri 1
Output to Excel in .num format
Average~0.09m/sec
CALIBRATION DATA SETCALIBRATION DATA SET
Control Points (More):
Long: 26.8490 Lat: 38.3980 For the period of 12.08.1997-23.09.1997
Long: 26.9235 Lat: 38.3952 For the period of 12.08.1997-23.09.1997
Long: 26.8467 Lat: 38.3983 For the period of 06.11.1997-20.01.1998
…
Varying positions
Varying times
Calibration is still in progress due to:
Model simulation time step is 2 secs. BUT the calibration data is composed of averages from A NUMBER OF days.
In such a case, total simulation time for a single trial becomes more than 5 hours and makes the calibration process slower!!!
WHAT IS NEXT?WHAT IS NEXT?
Calibration of the TELEMAC model is going to be completed soon so that the model becomes representative for the water motion within the bay.
Following the completion of the TELEMAC modeling, Water Quality Modeling is going to be performed on SUBIEF.
In SUBIEF, there will be a number of scenario tests by changing the dominant wind direction and the average pollutant loads coming both from the Gediz and other point sources in the inner bay.
The results will be evaluated by using the computer program developed by Yvon in order to determine the critical areas in the bay considering the pollution transport.
As the time is limited for the rest of the work, all efforts will be in a continuous contact with SOGREAH
Report Writing…to be completed partly after Telemac2d modeling.