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Pramitha, M.
- A Balloon-Borne Experiment for Quasi-lagrangian Frame of Reference Measurements of Intrinsic Frequency Spectrum of Gravity Waves in ihe Stratosphere
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Authors
Karanam Kishore Kumar
1,
K. V. Subrahmanyam
1,
B. Suneel Kumar
2,
K. V. Suneeth
3,
M. Pramitha
1,
N. Koushik
1,
N. Nagedra
2,
G. Stalin Peter
2
Affiliations
1 Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram 695 022, IN
2 Tata Institute of Fundamental Research Balloon Facility, Hyderabad 500 062, IN
3 India Meteorology Department, New Delhi 110 003, IN
1 Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram 695 022, IN
2 Tata Institute of Fundamental Research Balloon Facility, Hyderabad 500 062, IN
3 India Meteorology Department, New Delhi 110 003, IN
Source
Current Science, Vol 122, No 1 (2022), Pagination: 98-103Abstract
In the present communication, first results from an experiment to measure intrinsic frequency spectrum of atmospheric gravity waves using balloon-borne quasi-Lagrangian frame of reference observations in the mid-stratosphere over a tropical station, Hyderabad (17.4°N, 78.2°E) are discussed. A zero-pressure polyethylene balloon with GPS-sonde payload was drifted at ~31 km altitude for a horizontal distance of ~100 km for measuring pressure, wind and temperature at 1 sec temporal resolution. The measured altitude of the balloon showed variability within ±100 m, thus ensuring a near horizontal drift. These observations are used to estimate the intrinsic frequency spectrum of gravity waves in the mid-stratosphere over an Indian observational site. The successful experiment has opened up a new avenue for studying not only the stratospheric gravity wave dynamics, but also for exploring the horizontal mapping of stratospheric trace gases.Keywords
Balloon-Borne Experiment, Gravity Waves, Intrinsic Frequency Spectrum, Stratosphere, Trace Gases.Full Text
References
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