1. AURTHORs, Mr. Emmanuel Kisendi (Msc.)1
Lake Victoria Basin Water Board - Tanzania
Co- authors, Moiteela Lekula (PhD)2 and Dr. M. W. Lubczynski, (Maciek)2
Title: Groundwater Resources Evaluation- Central Kalahari - Karoo Basin

2. OVERVIEW Study area and problem statement
Research objectives and Hypothesis
Research methodology
Results and discussion
Conclusion and recommendations
Dry season
Wet season

3. 1: STUDY AREA Land scape Gauge data collection GW Monitoring BH
KKB ~ 325,210 Km2
LNKB ~ 47,829 Km2

4. Problem statement Need to understand the 3D hydro-stratigraphy of KKB
Proper conceptualization of LNKB
Need to estimate recharge by IHM approach

5. 2: Objectives

6. 3.Methodology
Use of boreholes ( RockWorks software)- to develop the Hydrostratigraphy model of KKB
Use of Modflow – NWT to estimate recharge

7. .Methodology cont…

8. 4. RESULTS- (a)Stratigraphy and hydrostratigraphy I: Stratigraphy

9. II. Hydrostratigraphy

10. Stratigraphy

11. II.Hydro stratigraphy

12. (b)Hydrostratigraphy thickness (i) Ntane and (ii) Ecca

13. LNKB Conceptual model Boundary conditions Conceptual model
Driving forces

14. Steady state model calibration Hydraulic heads-Ntane Sandstone

15. WATER BUDGET-Volumetrics

16. 5.Conclussion and Recommendations
The 3D hydro - stratigraphic model of KKB was properly presented
LNKB GW model could be well conceptualised
The overall NET RECHARGE of LNKB was 0.03 mm yr-1
RECOMMENDATIONS
Transient model to quantify aquifer storage, specific yield,
The aspect of borehole abstraction should be included.

17. Ahsanteni kwa kunisikiliza “Thank you for listening”