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Browsing by Author "Mengistu, G"

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Aerosol measurements over South Africa using LIDAR, Satellite and Sun Photometer

Author: Sivakumar, V ; Tesfaye, M ; Alemu, W ; Sharma, Ameeth ; Bollig, C ; Mengistu, G Date: May 2010 In this study, the authors present the climatological picture of aerosols over South Africa using 20 years of Stratosphere Aerosol and Gas Experiment (SAGE-II) satellite, 6–10 years of AErosol RObatic NETwork (AERONET) and ground based mobile ... Read more
Aerosol measurements over Southern Africa using LIDAR, satellite and sun-photometer

Author: Sivakumar, V ; Tesfaye, M ; Alemu, W ; Moema, D ; Sharma, Ameeth ; Bollig, C ; Mengistu, G Date: Aug 2009 This presentation provides aerosol measurement over Southern Africa, using LIDAR, satellite and sun-photometer. Aerosol formation and processes are also given. Read more
Atmospheric aerosol load morphological classification and retrieved visibility based on lidar backscatter measurements

Author: Tesfaye, M ; Sivakumar, V ; Mengistu, G ; Botai, J ; Sharma, Ameeth ; Bollig, C ; Rautenbach, CJdWH Date: 2010 In this paper, the tropospheric aerosol load morphological classification and its impact on temporal variation of visibility are investigated using a continuous 23-hour single channel CSIR-NLC mobile LIDAR backscatter measurement. The trajectory ... Read more
CSIR South Africa mobile LIDAR - First scientific results: comparison with satellite, sun photometer and model simulations

Author: Sivakumar, V ; Tesfaye, M ; Alemu, W ; Moema, D ; Sharma, Ameeth ; Bollig, C ; Mengistu, G Date: Nov 2009 The authors present the first scientific results from the Council for Scientific and Industrial Research-National Laser Centre (CSIR-NLC) mobile LIght Detection And Ranging (LIDAR) and its validation and comparison with other ground-based and ... Read more
LIDAR for atmosphere research over Africa

Author: Sivakumar, V ; Moema, D ; Bollig, C ; Sharma, Ameeth ; Mbatha, N ; Malinga, S ; Mengistu, G ; Bencherif, H ; Keckhut, P Date: Nov 2008 This paper describes the LIDAR for atmosphere research over Africa and current initiatives being undertaken in South Africa. A mobile LIDAR system is being developed at the Council for Scientific and Industrial Research (CSIR) National Laser ... Read more
Retrieval of relative humidity from CSIR-NLC mobile LIDAR backscatter measurements

Author: Tesfaye, M ; Sivakumar, V ; Botai, J ; Moema, D ; Sharma, Ameeth ; Bollig, C ; Hannes Rautenbach, CJ deW ; Mengistu, G Date: Sep 2009 The CSIR-NLC mobile LIDAR has been operated at the University of Pretoria during October 2008 for a better understanding of the atmosphere's boundary layer evolution and aerosol (solid particles suspended in the air) concentrations. The ... Read more

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Browsing by Author "Mengistu, G"

Browsing by Author "Mengistu, G"

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