During eleventh Antarctic Expedition in Nov. 1991/March 1992 ____ was installed.
[A].
SODAR (SOnic Detection And Ranging)
[B].
Second Permanent Station 'Maitree'
[C].
First permanent station 'Dakshin Gangotri'
[D].
None of the above
Answer: Option B
Explanation:
SODAR (SOnic Detection And Ranging), also written as sodar, is a meteorological instrument also known as a wind profiler which measures the scattering of sound waves by atmospheric turbulence.
Venkatesh.G.D said:
(Wed, Dec 8, 2010 10:26:50 PM)
Hai guys can someone explain this, I am preparing for UPSC exams if someone can help with relavant datas, I'm thankful to them.
Dina said:
(Fri, Jan 28, 2011 10:11:12 PM)
Maitri is India's second permanent research station in Antarctica. It was built and finished in 1989, shortly before the first station Dakshin Gangotri
Anurag said:
(Thu, Oct 6, 2011 05:04:30 PM)
SODAR systems are used to measure wind speed at various heights above the ground, and the thermodynamic structure of the lower layer of the atmosphere.
Sodar systems are like radar (radio detection and ranging) systems except that sound waves rather than radio waves are used for detection. Other names used for sodar systems include sounder, echosounder and acoustic radar
