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IJTK Vol.08(4) [October 2009] >


Title: Traditional almanac predicted rainfall – A case study
Authors: Sivaprakasam, S
Kanakasabai, V
Keywords: Almanac
Panchang
Rainfall predication
Tamil Nadu
Issue Date: Oct-2009
Publisher: CSIR
IPC CodeInt. Cl.8: G01W1/14
Abstract: Rainfall occurring over a place is very important from water resources planning and management point of view. The prediction of rainfall further helps in planning the activities of agriculturists, builders, water supply engineers, and others. At present the Meteorology Department is informing only short term forecasting about weather but long term forecasting is needed for planning. This can be achieved by two methods, namely traditional forecasting and scientific weather forecasting. Traditional forecasting is based on observations and experience using combinations of plants, animals, insects, meteorological and astronomical indicators, and almanacs or panchangs over a period of time. The scientific weather forecasting is based on past records of climate prevailed in the area using mathematical models. During the study, the rainfall prediction by one of the traditional almanac or panchang is studied in depth by considering the actual rainfall occurred over Tamil Nadu for one cycle of 60 Tamil years corresponding to the Christian era from 1936-1995. Graphs showing the trends of prediction and actual were drawn, which indicated the same pattern in both.
Page(s): 621-625
ISSN: 0975-1068 (Online); 0972-5938 (Print)
Source:IJTK Vol.08(4) [October 2009]

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