1. Basic Meteorological Understanding
Numerical Modeling

2. Doc. Ref: RTC-PRE-053.1 Date of last revision: 28 August 2017
NWP
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

3. Doc. Ref: RTC-PRE-053.1 Date of last revision: 28 August 2017
NWP Cont.
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

4. Analysis Field taking the observational data into account
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

5. Doc. Ref: RTC-PRE-053.1 Date of last revision: 28 August 2017
NWP Cont.
Conservation of momentum (Newton’s 2’d law)
3 equations for accelerations of 3-d wind (F = Ma)
Conservation of mass
1 equation for conservation of air (mass continuity)
1 equation for conservation of water
Conservation of energy
1 equation for the first law of thermodynamics
Relationship among p, V, and T
1 equation of state (ideal gas law)
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

6. Doc. Ref: RTC-PRE-053.1 Date of last revision: 28 August 2017
48 Hour forecast
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

7. Doc. Ref: RTC-PRE-053.1 Date of last revision: 28 August 2017
72 Hour forecast
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

8. 24 hour maximum temperature change
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

9. Model Outputs + Different Models
Model give, wind, humidity, pressure, temperature and heights.
All other parameters are calculated from these parameters.
Models:
Global models – like the climate models (whole earth)
Limited area models (for Southern Africa)
Meso scale models (for small areas like a city)
Micro scale models (for clouds)
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

10. Model Outputs = Storm Vectors
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

11. Doc. Ref: RTC-PRE-053.1 Date of last revision: 28 August 2017
Climate Models Cont.
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

12. Doc. Ref: RTC-PRE-053.1 Date of last revision: 28 August 2017
Global Climate Models
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

13. Doc. Ref: RTC-PRE-053.1 Date of last revision 28 August 2017
Climate Change Cont.
Doc. Ref: RTC-PRE Date of last revision 28 August 2017

14. Doc. Ref: RTC-PRE-053.1 Date of last revision: 28 August 2017
Climate Change Cont.
Highest emissions of CO2 found in North America, Europe and Asia (South Africa is the highest emitter in Africa)
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

15. Doc. Ref: RTC-PRE-053.1 Date of last revision: 28 August 2017
Climate Change Cont.
Africa's main contribution is via land use change (deforestation – removes the CO2 sink)
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

16. Climate Change Implications
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

17. Climate Change Implications
High temperatures, poor grass cover, lower rainfall, frequent droughts, rainstorms etc are likely to increase soil erosion far above current levels. This further weakens the capacity of the soils to support the country’s biological and economic well-being
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017

18. Doc. Ref: RTC-PRE-053.1 Date of last revision: 28 August 2017
The End
Doc. Ref: RTC-PRE Date of last revision: 28 August 2017