1. RQ30 RADAR SYSTEM (An Australian Perspective) RQ30 RADAR SYSTEM (An Australian Perspective) Malaysia JPS Offices Ampang, Kuala Lumpur 8 th May 2012

2. SYSTEM INTEGRATION

3. RQ30 RADAR SYSTEM IN GENERAL ‘Non-contact’ water level and velocity sensing system ‘Non-contact’ water level and velocity sensing system Low cost installation with minimal environmental impact Low cost installation with minimal environmental impact Low cost operation Low cost operation Low powered system (suits DC power with solar) Low powered system (suits DC power with solar) Easily interfaced with existing data loggers and telemetry Easily interfaced with existing data loggers and telemetry Provides theoretical stream discharge rating from Day 1 using accepted hydraulic methodology Provides theoretical stream discharge rating from Day 1 using accepted hydraulic methodology Accurate cross-section required with an estimate of channel roughness co-efficient(s) Accurate cross-section required with an estimate of channel roughness co-efficient(s) Number of options for mounting Number of options for mounting Can be installed facing upstream or downstream directions Can be installed facing upstream or downstream directions Senses reverse velocity Senses reverse velocity Suits wide natural streams or narrow man-made channels Suits wide natural streams or narrow man-made channels Analysis software detects hysteresis and discharge rating changes Analysis software detects hysteresis and discharge rating changes Widely used (> 350 system worldwide) Widely used (> 350 system worldwide)

4. INSTALLATION TYPES Bridge Installation Bridge Installation Davit Arm Installation Davit Arm Installation Cableway Installation Cableway Installation

5. Bridge Installation Most common type of installation Bridge does not need to be at 90° to stream flow (but preferable) Can be installed on top, under or on the side of the bridge structure

6. Davit Arm Installation Used for narrower channels with stable bank access Retractable arm is an option Some limitations (e.g. positioning sensor on centre line of stream)

7. Typical Installation Alternative for sites where no bridge is available Uses infrequently used existing cableway systems Measures need to be taken to minimise effects of wind and air temperature Data transmission to bank by cable or wireless

8. Cableway Installation Alternative for sites where no bridge is available Uses infrequently used existing cableway systems Measures need to be taken to minimise effects of wind and air temperature Data transmission via cable or using ‘wireless’ method Availability of data reporting via FTP

9. Existing Cableway Installation

11. New Cableway Installation

12. Tidal Situations (Reverse Velocity)

13. Hysteresis Effects

14. Discharge Rating Changes

15. Irrigation Canal

16. Sewage Treatment Plant Channel

17. Questions ? ?