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7/25/2019 SWAT-CC.pdf
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Climate Change Analysis for the example Watershed
B. Upendra, NCESS, NREM Group, Trivandrum - 695031
The objective of the present study is to evaluate the impact of climate change on the
future of water resource of the example watershed through the variation of
precipitation and temperature change in the warming climate from the context of
increase of CO2. The impact of climate change on runoff was studied using multiple
General Circulation Models (GCMs) as well as the Regional Climate Models (RCP)
and all of this model will give the projections into the future based on the historical
values and of course by simulating the future values with underlined mathematical
equations which basically represent the model. However, every mode is limited by its
own sensitivity. Here the associated uncertainties of the RCP8.5 which essentially
means Regional Climate model projection with worst scenario taking into account
evaluated using two rainfall runoff models and the runoff which is the quantity of
water discharged in surface streams will be impacted by the change in precipitation,
evapo-transpiration which are all associated with the temperature changes that comes
through the climate change cycle, ultimately affects both, the water resourceavailability and demand for water by agriculture. Here are the scenarios under which
the model simulations have been developed, the RCP8.5 with linear change
correction, Delta change correction, Precipitation local intensity scaling and the
power transformation of precipitation. While running the climatic model the basic
inputs to be given are Domain, Model, Elevation/Historical Scenario and Future
Scenario then check the files and then start processing and the steps are shown below
in the form screenshots.
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1) Linear Scaling Method:-
2)
Delta Change Correction Method:-
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3) Precipitation Local Intensity Scaling Method:-
4)
Power Transformation of Precipitation:-
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Corresponding plots for the 4 simulated stations
Station 1
Station 2
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Station 3
Station - 4
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Correction Factors:-
0
2
4
6
8
10
12
14
1 2 3 4 5 6 7 8 9 10 11 12
ChartTitle
Series1 Series2 Series3 Series4 Series5