Kindly arrange to see this plus other 3 directories giving details of the other parts of the ATLAS. The 4 partsOf the ATLAS is about 884 pages on Super A3 sizePaper (329 mm by 483 mm). Presently the ATLAS isunder publication but it is soon going to be ready.Even under no-profit-no-loss policy the ATLAS (allthe 4 parts) would cost about Rs. 10,000/- (US$350).If you wish to have the set kindly send yourWillingness to singhnityanand@hotmail.com. It willnot be obligatory to buy the ATLAS at this stage. This is only to have an idea of interested parties. The cost may go down drastically if more copies are ordered for printing. But we will keep your addressand inform you as and when the ATLAS is ready. At that time you may place your order. We are tryingto up date the dataset of the ATLAS up to 2005.

IMPORTANT

General information

This Atlas showing spatial and temporal variations over India have been developed using longest availableinstrumental rainfall data keeping in view requirement of different research and service groups. Monthly rainfalldata from a comprehensive network of 316 are utilized.The data for all the 316 stations is available for the period1871-2003. However, the data for some stations extendsBackward, prior to 1871- 196 to 1870, 101 to 1861, 80 to1860, 70 to 851, 60 to 1846, 57 to 1844, 13 to 1842, 6 to1829, 4 to 1826, 2 to 1817 and 1 to 1813. Collected from therecords of the India Meteorological Department (IMD) thedata is processed and refined for errors by different researchgroups at the Indian Institute of Tropical Meteorology forover 4 decades, since 1960s making it the most reliable dataset of the Indian region. The Atlas is in 4 parts as follows:

Part I Spatial variation of moisture regions and rainfall zones of India during 1871-2003Part II Instrumental period rainfall variation over homogeneous, states and meteorological subdivisions (1813-2003)Part III Instrumental period rainfall variation over major and minor river basins of India (1813-2003)Part IV Instrumental period rainfall variation over physiographic regions of India(1813-2003)

Contents of Part I are given in the following slides whereas for others in the accompanying directories.

Indian Atlas ofRainfall Spatial and Temporal Variations

Part I

SPATIAL VARIATION OF MOISTURE REGIONS AND RAINFALL ZONES OF

INDIA DURING 1871-2003

Nityanand SinghN.A. Sontakke H.N. Singh

Indian Institute of Tropical Meteorology, Pune2005

CONTENTS1. A brief account of geography, drainage, natural ecosystems, climate, history of raingauge etc.

2. Maps of India showing yearwise expansion/contraction of moisture regions (as delineated by isohyets) and dry/wet zones of different seasons (winter, summer, monsoon, post-monsoon, Jun-Jul-Aug, Jul-Aug, Oct-Nov, and May-Nov) and months over the period 1871-2003. The Maps are prepared using GeoMedia Professional GIS software package. In total there are about 3000 maps of reasonable size to visualize the spatial feature of rainfall during the particular period.

3. Average Probability Diagram (APD) of annual, seasonal and monthly rainfall.

4. Probabilistic description of moisture regions and dry/wet zones.

5. Temporal fluctuation of spatial variation of moisture regions and seasonal and monthly dry/wet zones.

This Part of the Atlas is hard bound of about 334pages on Super A3 Size paper (329mm by 483mm).

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Figure: Average Probability Diagram of Annual Rainfall Over India

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