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Rainfall Datasets offered by the Indian Institute of Tropical Meteorology
Entry ID: INDIA_IITM_RAINFALL

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Summary

Abstract: [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.

Related URL

Link: GET DATA
Description: Access to core monsoon region Central Indian Precipitation Index since 1948.

Geographic Coverage

N: 36.0 S: 7.0 E: 97.0 W: 68.0

Data Set Citation

Dataset Originator/Creator: 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/

Temporal Coverage

Start Date: 1871-01-01

Stop Date: 2003-12-31

Location Keywords

CONTINENT > ASIA > SOUTHCENTRAL ASIA > INDIA

Data Resolution
Temporal Resolution: monthly

Science Keywords

ATMOSPHERE >PRECIPITATION >PRECIPITATION AMOUNT    [Definition]

ATMOSPHERE >PRECIPITATION >PRECIPITATION ANOMALIES    [Definition]

ATMOSPHERE >PRECIPITATION >RAIN >RAINFALL    [Definition]

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

FIXED OBSERVATION STATIONS [Information]

METEOROLOGICAL STATIONS [Information]

Instrument

RAIN GAUGES [Information]

Use Constraints

Copy Right:
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.

Keywords

central Indian precipitation index

core monsoon region

precipitation anomalies

Data Set Progress

IN WORK

Originating Center

IITM/INDIA

Data Center

Indian Institute of Tropical Meteorology, Department of Science and Technology, India [Information]
Data Center URL: http://www.tropmet.res.in/
Dataset ID: India Rainfall Data

Data Center Personnel

Name: V. V. SAPRE
Email: vvscpt at tropmet.res.in
Contact Address:
Indian Institute of Tropical Meteorology
Pune 411 008
City: Maharashtra
Country: India

Physical Sciences Division, Earth System Research Laboratory, OAR, NOAA, U.S. Department of Commerce [Information]
Data Center URL: http://www.esrl.noaa.gov/psd/

Data Center Personnel

Name: ESRL/PSD DATA INQUIRIES
Email: esrl.psd.data at noaa.gov

Distribution

Distribution_Media: Online (HTTP)
Distribution_Format: ASCII
Fees: None

Personnel

V. V. SAPRE
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Email: vvscpt at tropmet.res.in
Contact Address:
Indian Institute of Tropical Meteorology
Pune 411 008
City: Maharashtra
Country: India

Creation and Review Dates

Last DIF Revision Date: 2012-05-01

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