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Hindi Research Article
Simulated Impact of Desertification and Deforestation on Indian Monsoon Rainfall and Surface Fluxes: RegCM4.0 Simulations
Abhishek Lodh*Indian Institute of Technology Delhi, Centre For Atmospheric Sciences, Hauz Khas, New Delhi 110016, India
- *Corresponding Author:
- Lodh A
Indian Institute of Technology Delhi
Centre for Atmospheric Sciences
Hauz Khas, New Delhi 110016, India
Tel: +91(11) 2659 1301/6029
E-mail: abhishek.lodh@gmail.com
Received Date: September 26, 2016; Accepted Date: February 20, 2017; Published Date: February 24, 2017
Citation: Lodh A (2017) Simulated Impact of Desertification and Deforestation on Indian Monsoon Rainfall and Surface Fluxes: RegCM4.0 Simulations. J Ecosyst Ecography 7: 226. doi: 10.4172/2157-7625.1000226
Copyright: © 2017 Lodh A. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Impact of extensive desertification in northwest India, Himalayan glaciers depletion and tropical deforestation over Indian subcontinent and Southeast Asia, on Indian monsoon circulations, precipitation, surface fluxes is being studied. In this research paper, by changing vegetation types in the bats coupled - regCM4.0, the model impact of desertification and deforestation on Indian monsoons is investigated. By performing these sensitivity experiments (extended desertification, and tropical deforestation) it is found that over India, monsoon precipitation is significantly decreased at local and large scales. Decreased surface roughness length and increase in albedo because of desertification/deforestation in the model results in origination of anomalous westerly winds and subsidence, decreasing turbulent flow, decreasing rainfall over land and strengthening over the seas and consequently increases the temperature over land. Further, the hydrological and atmospheric water cycle gets weak because precipitation decreases. Thus any form of deforestation and desertification happening over tropical regions has a severe impact on Indian summer monsoon atmospheric circulations and precipitation.
