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India
belongs to that select group of countries who manufacture their own
upper air and surface instruments. This is done by the
meteorological department through in-house production facilities.
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The office
of the Dy. Diretor General of Meteorology (Upper Air Instrument),
New Delhi, consisting of Hydrogen Factory at Agra and Laboratories
and Workshop at New Delhi, is responsible for co-ordination of all
technical aspects related in the field of upper air instrumentation.
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The office
of the Dy. Director General of Meteorology (Surface Instruments),
Pune, consisting of Laboratories and Workshop at Pune, is
responsible for the surface instrumentation.
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IMD's
present Upper air observational network comprises 39 radiosonde and
62 pilot balloon observatories spread all over the country.
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Systematic upper air
observations began in the Department in 1905 at Shimla.
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An upper
air observatory was started in 1912 at Agra.
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IMD manufactures its own
radiosondes at its workshop in Delhi. IMD also supplies radiosondes
to other agencies.
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Hydrogen
gas is produced at Agra for Radiosonde observations.
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Research
and development for improving the quality of upper air data is an
on-going process at IMD.
