1. Desertification and Aeolian Sediment Transport in India

2. Climates of India -Area of Rajasthan is predominantly desert or an arid climate. -Climate is heavily influenced by monsoon season. -32% of land facing threat of desertification

3. -Upward eddie wind currents of greater than 3km/h can lift silt and very fine sand up to 4km

4. Causes of Desertification

9. The Himalayan Water Grab

10. The Source ●Half world’s population dependent ●Historical land and border disputes ●Dynamic and evolving systems o Hydrologically and o Politically ●Seasonal fluctuations and vulnerabilities

11. Observer

12. Complexities of Sediment Load ●Limited Knowledge ●Climatic evolution ●Anthropogenic effects ●Intrabasin and regional variability ●Source/sink dynamics

13. Gangetic river system 2,390tons/km 2 annually Tropical river system 216tons/km 2 annually Sediment delivery influenced primarily by climatic conditions Sediment delivery influenced by climate and anthropogenic factors

14. Heavily decreased sediment loads

15. Erosion/deposition equilibrium Aggrading environment Decreased flow “Hungry water” High erosion rate

16. Subsidence from oil extraction Decreasing sediment loads Decreasing deltaic aggradation Rising sea level