HOT TOPICS
SPOTLIGHT AGENCIES
Water From Rainfall in Bengaluru!
kbsyed61 - 7 February, 2011 | Bangalore | Bengaluru | Water | water index | Rainfall
Bengaluru city spread over 600 Sq Kilometers (266 Sq. Miles) receives an average rainfall of about 900 mm (35 Inches), Annually. Since rainfall is an important source of replenishing city's water sources, here is an attempt to tabulate the monthly and annual rainfall over a period and compute the same into total water received in terms of Cubic Kilometers (KM3).
This data is from year 1972 and majority of it is obtained from GKVK, UAS, Bangalore.
Year
Annual
Rainfall
(in mm)
(in KM3) 2010 1027.2 0.698 2009 811.86 0.552 2008 1072.41 0.729 2007 1013.3 0.689 2006 639.1 0.435 2005 1350.3 0.918 2004 1159 0.788 2003 649.7 0.442 2002 628.3 0.427 2001 1000.5 0.680 2000 1939.6 1.319 1999 1732 1.178 1998 1184.6 0.806 1997 1196.7 0.814 1996 886.6 0.603 1995 1379 0.938 1994 409 0.278 1993 1176.6 0.800 1992 790.7 0.538 1991 2698.2 1.835 1990 528 0.359 1989 1245.6 0.847 1988 1285.7 0.874 1987 826 0.562 1986 917.5 0.624 1985 1208.9 0.822 1984 1394.8 0.948 1983 792.6 0.539 1982 901.9 0.613 1981 808.7 0.550 1980 1788.7 1.216 1979 1305.2 0.888 1978 1086.4 0.739 1977 1693 1.151 1976 693.7 0.472 1975 1193.2 0.811 1974 753.8 0.513 1973 930.4 0.633 1972 811.7 0.552
Note -For converting rainfall in mm into KM3, pls refer the calculations given in http://praja.in/en/projects/3230/announcement/water-facts-we-should-know#comment-26648
COMMENTS
With 1 Cubic Kilometer = 35,314,666,721.49 cubic Feets (35 TMCs)
So on average bangalore gets around 20 TMCs of water from rain. Some water flows from Nandi hills side are caught in TG Halli dam and Hoskote lake..
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