12-14 September, 2011, Lucknow - Earth Science India

National Conference on Science of Climate Change and Earth’s Sustainability: Issues and Challenges ‘A Scientist-People Partnership’
12-14 September, 2011, Lucknow
and drinking purposes. The model simulates groundwater flow over an area of 1937
km 2 with 33 rows and 28 Column and single layer. The model was calibrated for steady
and transient state condition for the period 1998-2005 using available historical water
level and other auxiliary data. There was a reasonable match between the observed and
computed heads. The calibrated model has then been used to simulate the groundwater
regime and found helpful to solve the problem of the area using various water
management strategies.
THE STUDY OF EXTREME RAINFALL AND
TEMPERATURE EVENTS OVER VARANASI
A. Tripathi 1 , R. Bhatla 1 , R.S. Singh 1 and R.K. Mall 2
1 Department of Geophysics, Banaras Hindu University, Varanasi.
2 Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi.
Climate is defined not simply as average temperature and precipitation but also by
the type, frequency and intensity of weather events. Human-induced climate change has
the potential to alter the prevalence and severity of extremes such as heat waves, cold
waves, storms, floods and droughts.
The frequency increase of extreme temperature events reduces yields in warmer
regions due to heat stress at key level, quality of life for people and increases water
demand, water quality problems, risk of heat-related mortality. Whereas increase in
extreme precipitation events results in damage to crops, soil erosion, water logging of
soils, adverse effects on quality of surface and groundwater, disruption of settlements.
In the present work the extreme temperature and rainfall events has been analysed
over Varanasi, U P using 30 years daily surface data of temperature and rainfall from
1980 to 2010. Although present study needs to be extended in terms of space and time,
it reveals that frequency of extreme rainfall and temperature events has been increased
slightly. It also suggests that these extreme events may increase in future in response to
increasing global warming.
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