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NEW DELHI: On what can be vital information to prevent air traffic disasters in the Himalayas and helping in predicting the weather with greater precision, scientists have for the first time estimated ‘turbulence parameters‘ at lower troposphere over the central Himalayan region.
Although the turbulence parameters for South India were known before, they were not known in the Himalayan region. As a result, the modelers used some approximate values to calculate the turbulence parameters. Modelers can now update these values in their existing models.
Using the observation of indigenous developed Stratosphere-troposphere radar (ST Radar), researchers from the Research Institute of Observational Sciences (ARIES) of the Ministry of Science and Technology of the Aryabhatta Union, based in Nainital, have compiled the values of the “atmospheric turbulence parameters” and the “distribution Temporal and spatial structure of turbulence “in the troposphere. Accurate knowledge of the turbulence in this region will now help safe movements of air traffic.
“The development of such a 206.5 MHz radar (ST Radar), within the country, will further strengthen our efforts to better understand regional changes in weather and climate, particularly in the Himalayan region, which has a complex topography. Ashutosh Sharma said. secretary, department of science and technology (DST).
In the study, published in the journal Radio Science, researchers led by Aditya Jaiswal at ARIES have found large values of “constant refractive index structure” at lower altitudes due to mountain wave activities and the presence of low-level clouds.
“Low cloud levels are generated in a mountainous region with complex topography. Because of this, the stable air in this region settles into oscillations known as mountain waves and leeward waves. Characterizing turbulence in the mountainous region is vital to understanding the dynamics of mountain-induced wave disturbances and other related phenomena, which play a crucial role in modulating general circulation wind patterns, “said the DST in a statement, referring to the new findings.
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