Earth, Atmosphere & Environment Sciences
Title : | Assessment of Climate Change Impacts in Indian Monsoon Precipitation Using New Age CMIP6 Dataset: Implications to Water Security in the Godavari and Narmada Basins |
Area of research : | Earth, Atmosphere & Environment Sciences |
Principal Investigator : | Dr. Shashikanth Kulkarni, University College Of Engineering Hyderabad Affiliated To Osmania University, Telangana |
Timeline Start Year : | 2023 |
Timeline End Year : | 2026 |
Contact info : | kulkarni.shashikanth@gmail.com |
Equipments : | Equipment Server and Computers |
Details
Executive Summary : | The present project is important for management of limited water resources under climate change. Our study provides important and broad management strategies for the community. The present study addresses the latest scientific concerns raised for inclusion in climate model applications. The rainfall projections carried out from CMIP6 model outputs to provide an understanding of the monsoon system under climate change for water availability and security in the region. An interesting aspect of the work consists of which regions in India suffer from rainfall deficiency and excess rainfall regions. In India, enormous challenge exists in providing security for drinking and Irrigation facilities on sustainable basis. Moreover, uncertainties in supplies and disasters like floods and droughts make challenges complicated to provide. Further, it compounds due to global warming and climate change (Jain, 2021). Climate change will be one of the major issues at the international level in future. Climatic Changes have undesirable harmful impacts on ecosystems. Further, uncontrolled GHG emissions would increase the risks of the habitants (Raju and Nagesh Kumar, 2017). Hence dependable and reliable local-scale rainfall projections under new climatic change are needed for adaptation and policy framing purposes (Shashikanth et al. 2014), and new Infrastructure developments are needed to provide water security and sustainability. Therefore, in order to address these grand challenges under climate change crisis, downscaling is an important component in climate science. For studying the impact of climate change, the projections are to be carried under different scenarios and understand the uncertainty in the rainfall projections; therefore, policy framing and mitigation need to be undertaken on priority basis. We need to check in future, how downscaled simulations behave visa-visa with different Shared Socioeconomic Pathways (SSPs). A number of SSP scenarios for the future have been developed for CMIP6, such as SSP1-2.6, SSP2-4.5, SSP3-7.0, and SSP5-8.5.the physics-based meteorological and hydrological models are useful tools for assessing the impact of climate change in watersheds. Hence, the climate change impacts on streamflow are assessed by simulating future streamflow using a hydrological model and downscaling climate variables that affect the streamflows. The rainfall projections need to be assessed in the form of runoff after considering the relevant decision parameters and running the hydrological parameters SWAT. Comparison of stream flows for historical and future time windows would indicate changes in the streamflows (increase/decrease) for planning purposes under climate change. Although, the climate models are chosen based on not only on data availability but also on literature, keeping in view the suitability of GCMs for Indian regions. However, it is not possible to choose which SSP would happen in the future. |
Co-PI: | Dr. Harish Gupta, University College Of Engineering, Hyderabad, Telangana-500007 |
Total Budget (INR): | 36,33,360 |
Organizations involved