OBJECTIVE:

1) Comparative analysis of the results of numerical modelling of the Danube flow at different levels (for initial phase and the 3rd phase of execution of bottom sill on Bala branch) and the results obtained in the field by daily measurements in different sections of control.
2) Determining the speed of sturgeon above the bottom sill on Bala branch.

PURPOSE: In order to prevent possible misunderstandings of the hydrological phenomena and sturgeons’ migration, a new monitoring and alarming system has been implemented.

Figure 1 – Monitoring system to check the results obtained by 3D numerical simulations

Figure 2 – Intensive monitoring system in the area of interest to determine sturgeons’ movement velocity (patent proposal)
Image of the bottom sill zone as a result of bathymetric measurements	Image of the bottom sill zone as a result of bathymetric measurements
Image of the bottom sill zone as a result of bathymetric measurements
Fixed station for sturgeon monitoring S1 installed on 13th of July 2013	Fixed station for sturgeon monitoring S2 installed on 16th of July 2013
Fixed station for sturgeon monitoring S1, repositioned due the decrease of water level and destroyed by a barge on 24th of August 2013	Fixed station for sturgeon monitoring S2, repositioned due the decrease of water level
Floating station for sturgeon monitoring S1 installed on 21st of July 2013. During August 2013 this monitoring floating station has been destroyed	Floating station for sturgeon monitoring S2 installed on 21st of July 2013. During August 2013 this monitoring floating station has been disabled to avoid losing or destroying
Installing the fixed station for sturgeon monitoring S1 on 13th of July 2013	Installing the fixed station for sturgeon monitoring S1 on 13th of July 2013
Fixing the receiver to the floating station for sturgeon monitoring S1	Fixing the receiver to the floating station for sturgeon monitoring S2

Therefore, beside the monitoring activity of the environmental biotic and abiotic parameters (according to contract no. 53/2011) an additional investigation, carried out in emergency regime of the following parameters has been made:

A) Monitored parameters according to the next table:

B) Determination of reception areas of the ultrasonic emitters placed within sturgeons’ body  (still implementing)
C) Determination of sturgeons’ movement velocity in the area of Bala bottom sill (this will be implemented after the obtaining of the scientific fishing authorization)*
D) Checking activity of the hydrological parameters before and after the accomplishment of the bottom sill- Phase III, Bala (in the first part of September)
E) Checking of the forecasts accomplished through the numerical simulation and comparative analysis (result of the 3D numerical model- in situ measurements (September)

The accomplishment steps to ensure the success of the intensive monitoring activity are:

• Accomplishment of the Control Center at km 9,5 Bala

Position of the control center, on Bala branch	Control center

• Assurance of continuous field detachment of the monitoring teams according to the below table:

• Assurance of a register on the entire intensive monitoring period for emergency situations
• Creation, elaboration and implementation of some web pages to ensure the transparency
• Installation of control topo- landmarks in the areas of interest correlated to the geometry of numerical models
• Intensive monitoring plan
• Assurance of measurements’ quality through double control
• Written responsibility of the teams on the special importance of activities
• On-site control plan
  

Expected results:

1. 3D Model audit and recalibration
2. Assurance of a high confidence level of the future forecast results of the 3D numerical models for the entire geometry of Bala bottom sill
3. Determination - with an assumed reliability - of sturgeons’ movement velocity in natural conditions, on Bala (especially at bottom sill)
4. Highlighting sturgeons’ migration routes in the investigated area
5. Maps containing sturgeons’ migration  routes in the investigated areas
6. Decisional analysis on sturgeons’ migrating possibility according to the final geometry of bottom sill, Bala branch
7. Preventive solutions proposals to eliminate/decrease any risk impact on the aquatic or terrestrial environment.

Obtained results:
The synthetic situation of the measurements carried out by the detached teams is presented below:

{jumi [images/monitorizare_intensiva/teams_table.php]}

 
The aerial image of the monitoring area is being presented as well as the sections on which the intensive monitoring is being carried out. You may click the names of the monitored sections to view the historic of the measurements as well as the results of 3D models for these sections.

Ending deadline: 30 November 2013 – according to the field conditions and the hydrotechnical works this deadline can be extended to 3 months maximum.