1. RETRIEVAL OF ATMOSPHERIC BOUNDARY LAYER HEIGHT BY CSIR-NLC MOBILE LIDAR, PRETORIA (25.5°S; 28.2°E), SOUTH AFRICA Prof. Venkataraman Sivakumar CSIR - National Laser Centre svenkataraman@csir.co.za svsk74@gmail.com

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3. Slide 3 © CSIR 2008 www.csir.co.za

4. Slide 4 System 3-D View

5. Slide 5 System Block Diagram

6. Slide 6 © CSIR 2008 www.csir.co.za It’s safe, person can walk around even when the laser is in operational.

7. Slide 7 © CSIR 2008 www.csir.co.za Initial Tests

8. Slide 8 Signal to Noise

9. Slide 9 © CSIR 2008 www.csir.co.za 0-16 km Upto 50 km 26 – 29 km 2-3 km

10. Slide 10 Preliminary Results 23 Feb 2008

11. Slide 11 Height profile of range corrected LIDAR signal returns and the illustration of detection of Boundary Layer by slope method.

12. Slide 12 Height-Time-Color map of LIDAR signal returns (arb.unit) for 10 August 2010. The figure is overlapped by the determined boundary layer height (Black: statistical based on range corrected signal, Pink: slope method) Temporal evolution of difference in detected boundary layer height.

13. Slide 13 First “Lidar Field Campaign” First 23-hour continuous measurement at University of Pretoria

14. Slide 14 Height-Time(diurnal)-Color map of LIDAR signal returns (arb.unit) for 16- 17 October 2008. The figure is overlapped by the determined boundary layer height (Black: statistical based on range corrected signal, Pink: slope method) Temporal evolution of difference in detected boundary layer height.

15. Slide 15 LIDAR measurements at Elandsfontein

16. Slide 16 01-02 December 2010

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19. Slide 19 SANOX – Campaign Expt. 23-27 May 2011 23-24 May 2011 24 May 201127 May 2011

20. Slide 20 © CSIR 2008 www.csir.co.za Our future scientists

21. Slide 21 © CSIR 2008 www.csir.co.za Where does it go ? How does it impact ?

22. Slide 22 Schematic view of the planned LIDAR system with Scanner

23. Slide 23 Initial result from 2-Channel (532 nm and 355 nm)

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