The National Physical Laboratory
(NPL), Delhi, has
developed lien
acoustic sounder to
facilitate
remote sensing
facility for measuring meteorological
data and forecast pollution
dispersion
patterns. A series of
experiments
regarding this
were carried out
from 1992 to 1994. Also termed 'sodar'
(sound and detection ranging),
the sounder has
been developed by H
M Dutta,
senior scientist,
NPL. Dutta states
the experiments were
carried out in
Antarctica as the
7th continent was
the perfect testing
ground, "where
localised interference is the
least, and signatures most
authentic.
Also, any project
that is successful
in Antartica, is in
itself a certification of fitness."
-With a defined map
of atmospheric conditions at
different times
and seasons given by
the soclar, the
direction that
pollutants might
take, and the
specific fall-out
region in the eventuality
of a disaster may
be assessed.
The technology had
been transferred to a
Jabalpur-based company, Orbit Bio-tech
Innovations Pvt
Ltd, sometime in
1994, and the
equipment is being
made by the Delhi-based
Envirotech Instruments
Pvt Ltd. The possible users
Include pollution control
boards, those preparing
environmental impact
assessment reports,
research institutes and nuclear thermal power instalations.
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