Under a semi-commercial agreement a cryogenic sampler payload weighing 405 kg
developed by ISRO was launched successfully this morning (April 29, 1999) at
04:50 hours from National Scientific Balloon Facility of TIFR,
Hyderabad,employing a 1,50,000 cubic meter balloon.
It may be noted that ISRO has developed an advanced technology cryogenic sampler
payload for measurement of substances that deplete earth's ozone layer in the
stratosphere as also greenhouse warming substances in the Troposphere. India is
one among the few countries in the world to develop and successfully employ
this advanced cryogenic technique. This instrument enables measurement of most
of the ozone depleting substances contained in the Montreal Protocol to which
India is a signatory.
Most of the ozone depleting substances are produced and released into the
atmosphere by the developed countries while India's contribution towards these
adverse effects is less than 0.1%. However the atmospheric dynamics are such
that the abundances of these substances in the tropical region is an index of
global ozone destructive potential of these substances.
Learning of the specific advantages of the ISRO's cryogenic techniques, the Max
Planck Institute of Aeronomy, Gottingen approached ISRO/ANTRIX for making
available the sophisticated instrumentation for ozone depletion studies on
semi-commercial basis. The launch was successful in all respects.
Liquid Propulsion Systems Centre at Bangalore, Kerala Hi Tech Industries at
Thiruvananthapuram, Bharat Electronics, Bangalore together with a few other
industries participated in the fabrication of this instrument designed by ISRO.
More requests have also been received by ISRO for providing this cryogenic
sampler payload expertise for conducting scientific investigations in
atmospheric sciences and other areas.