PAWS Restructured

Authors

  • R C Grosh CSIR Pretoria, South Africa
  • C Muller CSIR Pretoria, South Africa
  • J Galpin CSIR Pretoria, South Africa
  • I Auret CSIR Pretoria, South Africa
  • M C Hodson CSIR Pretoria, South Africa
  • D E Proctor CSIR Pretoria, South Africa
  • G Reuter CSIR Pretoria, South Africa
  • D vdS Roos CSIR Pretoria, South Africa

Abstract

The Program for Atmospheric Water Supply (PAWS) is a randomized summer rain stimulation experiment utilizing dry ice released by Learjet as the seeding agent. Seeding is done during penetration into growing turrets of convective storms at the -10°C level. The main goal of the PAWS is to increase the water supply to all the people living in the dry climate of South Africa: but particularly to the Eastern Transvaal where rapid industrial and population growth will require additional water within the next generation. The experiment is now examining the physical effects of seeding on individual cloud systems. In the future, it is expected that statistical evaluations will be carried out over predetermined areas on the ground. The PAWS study has been on-going since 1981 and is partially described in Grosh (1988a), Dixon and Mather (1986), Morrison et el. (1986) and Mather et el. (1986), where initial radar and airborne microphysical analyses are briefly discussed. A series of lengthy annual reports supplies more complete and current information (Grosh, 1988b).

Author Biographies

R C Grosh, CSIR Pretoria, South Africa

PAWS Scientific Director, Rain Stimulation Project Leader

C Muller, CSIR Pretoria, South Africa

Rain Stimulation

J Galpin, CSIR Pretoria, South Africa

Centre for Advanced Computing & Decision Support

I Auret, CSIR Pretoria, South Africa

Centre for Advanced Computing & Decision Support

M C Hodson, CSIR Pretoria, South Africa

Rain Measurement, Project Leader

D E Proctor, CSIR Pretoria, South Africa

Lightning Probing, Project Leader

G Reuter, CSIR Pretoria, South Africa

Weather & Industry

D vdS Roos, CSIR Pretoria, South Africa

Weather & Industry, Programme Manager

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Scientific Papers