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

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Slide 4 System 3-D View

Slide 5 System Block Diagram

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

Slide 7 © CSIR Initial Tests

Slide 8 Signal to Noise

Slide 9 © CSIR km Upto 50 km 26 – 29 km 2-3 km

Slide 10 Preliminary Results 23 Feb 2008

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

Slide 12 Height-Time-Color map of LIDAR signal returns (arb.unit) for 10 August 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.

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

Slide 14 Height-Time(diurnal)-Color map of LIDAR signal returns (arb.unit) for October 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.

Slide 15 LIDAR measurements at Elandsfontein

Slide December 2010

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Slide 19 SANOX – Campaign Expt May May May May 2011

Slide 20 © CSIR Our future scientists

Slide 21 © CSIR Where does it go ? How does it impact ?

Slide 22 Schematic view of the planned LIDAR system with Scanner

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

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