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Estimating aquifer properties and distributed groundwater recharge in a hard-rock catchment of Udaipur, India

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Title Estimating aquifer properties and distributed groundwater recharge in a hard-rock catchment of Udaipur, India
Not Available
 
Creator Deepesh Machiwal
P.K. Singh
K.K. Yadav
 
Subject GIS
Groundwater recharge
Large-diameter well
Pumping test
Water table fluctuation
 
Description Not Available
The present study determined aquifer parameters
in hard - rock aquifer system of Ahar River catchment,
Udaipur, India by conducting 19 pumping tests in largediameter wells. Spreadsheet programs were developed for
analyzing pumping test data, and their accuracy was
evaluated by root mean square error (RMSE) and correlation coefficient (R). Histograms and Shapiro - Wilk test
indicated non - normality (p value \ 0.01) of pre - and postmonsoon groundwater levels at 50 sites for years
2006 - 2008, and hence, logarithmic transformations were
done. Furthermore, recharge was estimated using GISbased water table fluctuation method. The groundwater
levels were found to be influenced by the topography,
presence of structural hills, density of pumping wells, and
seasonal recharge. The results of the pumping tests
revealed that the transmissivity (T) ranges from
68 - 2239 m2 / day, and the specific yield (Sy) varies from
0.211 to 0.51 9 10 - 5
. The T and Sy values were found
reasonable for the hard - rock formations in the area, and the
spreadsheet programs were found reliable (RMSE)
*0.017 - 0.339 m; R[0.95]. Distribution of the aquifer
parameters and recharge indicated that the northern portion
with high ground elevations (575 - 700 m MSL), and high
Sy (0.08 - 0.25) and T (600 m2 / day) values may act as
recharge zone. The T and Sy values revealed significant
spatial variability, which suggests strong heterogeneity of
the hard - rock aquifer system. Overall, the findings of this
study are useful to formulate appropriate strategies for
managing water resources in the area. Also, the developed
spreadsheet programs may be used to analyze the pumping
test data of large - diameter wells in other hard - rock regions
of the world.
Not Available
 
Date 2020-08-22T06:06:52Z
2020-08-22T06:06:52Z
2016-09-01
 
Type Research Paper
 
Identifier Machiwal, D., Singh, P.K. and Yadav, K.K. (2017). Estimating aquifer properties and GIS-based groundwater recharge in hard-rock catchment of Udaipur, India. Applied Water Science, 7(6): 3157-3172
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/39964
 
Language English
 
Relation Not Available;
 
Publisher Springer