High Resolution 1:10,000 scale Mapping Strategy of Multi ... - NDMA

India meteorological department is the custodian of cyclone related data. They have
collected the data from 1891 onwards for all cyclones forming in Bay of Bengal and
Arabian Sea affecting Indian subcontinent and recently published cyclone e atlas in
June 2008 containing the detailed data of cyclone formation, intensity, tracks, land
fall positions, wind & rainfall intensity, cyclone storm surge and area of dissipation.
The data was obtained from IMD in digital form for conducting further analysis of
Hazard Zonation of India. The data before 1960 is based on synoptic charts and ship
observations and after that the advance observational technologies like satellite
observations, radar observations and closed surface observation network were used
for precise tracking of cyclones and warning.
The database used consists of complete history of 271 Severe Cyclonic Storms,
553 Cyclonic Storms and 4,610 Deep Depressions. For more details , please refer
to Annex- III.
Maps: The georeferenced maps of Indian subcontinent have been extracted from
google maps. The political boundaries of India including the boundary of each state
and district have been taken from various government agencies and websites as
followed:
a. National portal Secretariat, National Informatics centers (NIC’s)
b. State NIC centers
CHAPTER 4
METHODOLOGY FOR HAZARD MAPPING OF
TROPICAL CYCLONE
c. Census of India, Ministry of Home Affairs
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