Rainfall Datasets offered by the Indian Institute of Tropical Meteorology
Entry ID: INDIA_IITM_RAINFALL
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[Source: Indian Institute of Tropical Meteorology Homepage, http://www.tropmet.res.in/ ]|
The Indian rainfall data set was derived from 306 almost uniformly distributed stations for which rainfall data are available from 1871. The hilly regions consisting of four meteorological subdivisions of India which are parallel to Himalayan mountain range have not been considered in view of the meagre rain-gauge network and low areal representation of a rain-gauge in a hilly area. Two island subdivisions far away from mainland have also not been included. Thus, the contiguous area having network of 306 stations over 30 meteorological subdivisions measures about 2,880,000 sq.km., which is about 90 percent of the total area of the country.
The monthly (January - December) area weighted rainfall series for each of the 30 meteorological subdivisions have been prepared by assigning the district area as the weight for each rain-gauge station in that subdivision. Similarly assigning the subdivision area as the weight to each of the subdivisions in the region, area weighted monthly rainfall series are prepared for Homogeneous regions of India as well as for all India.
The data for the recent period 1991-2003 are preliminary estimates based on the subdivisional means supplied by the India Meteorlogical Department (IMD), which are in turn based on a variable network. However, the IMD data have been rescaled to conform to the long-term means of the respective subdivisions in the IITM-IMR data set. These data will be updated as and when the full set of data for 306 stations becomes available.
Description: Access to core monsoon region Central Indian Precipitation Index since 1948.
|N: 36.0||S: 7.0||E: 97.0||W: 68.0||
Data Set Citation
D.R. Kothawale, K. Rupa Kumar, D.A. Mooley, A.A. Munot, B. Parthasarathy, N.A. Sontakke
Dataset Title: IITM Indian regional/subdivisional Monthly Rainfall data set (IITM-IMR)
Dataset Release Place: Maharashtra, India
Dataset Publisher: Indian Institute of Tropical Meteorology
Online Resource: http://www.tropmet.res.in/
|Start Date: 1871-01-01|
|Stop Date: 2003-12-31|
> SOUTHCENTRAL ASIA
|ATMOSPHERE >PRECIPITATION >PRECIPITATION AMOUNT [Definition]|
|ATMOSPHERE >PRECIPITATION >PRECIPITATION ANOMALIES [Definition]|
|ATMOSPHERE >PRECIPITATION >RAIN >RAINFALL [Definition]|
ISO Topic Category
|FIXED OBSERVATION STATIONS [Information]|
|METEOROLOGICAL STATIONS [Information]|
|RAIN GAUGES [Information]|
Indian Institute of Tropical Meteorology (IITM)
Homi Bhabha Road
Pune 411 008, India
The accompanying data as described below may be freely used
and redistributed for non-profit and non-commercial research
purposes provided IITM is duly acknowledged as the data source. Any
redistribution should necessarily include this document.
|central Indian precipitation index|
|core monsoon region|
Data Set Progress
Indian Institute of Tropical Meteorology, Department of Science and Technology, India
Data Center URL: http://www.tropmet.res.in/
Dataset ID: India Rainfall Data
Physical Sciences Division, Earth System Research Laboratory, OAR, NOAA, U.S. Department of Commerce
Data Center URL: http://www.esrl.noaa.gov/psd/
Role: TECHNICAL CONTACT
Email: vvscpt at tropmet.res.in
Indian Institute of Tropical Meteorology
Pune 411 008
A. A 1981 : Annual rain-water over India, its variability and
impact on the economy. J. Climatol, 1, 167-186.
Parthasarathy, B., Sontakke, N. A., Munot, A. A. and
Kothawale, D. R. 1987: Droughts/ floods in the summer monsoon
rainfall season over different meteorological subdivisions of
India for the period 1871-1984. J. Climatol, 7, 57-70.
Parthasarathy, B., Rupa Kumar, K and Munot, A. A. 1993 :
Homogeneous Indian Monsoon Rainfall : variability and
prediction. Proc. Indian Acad. Sci. (Earth Planet. Sci.)
Pant, G.B. and Rupa Kumar, K., 1997. Climates of South Asia.
John Wiley & Sons, Chichester, 320 pp.
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