General Knowledge - Basic General Knowledge - Discussion

27. 

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 A

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.

Priya said: (Nov 29, 2010)  
Can any one explain clearly?

Venkatesh.G.D said: (Dec 8, 2010)  
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: (Jan 28, 2011)  
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: (Oct 6, 2011)  
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

Nisant said: (Aug 23, 2012)  
Explain clearly. .

Hitesh said: (Mar 4, 2013)  
Whose ten antarctic expedition?

Raj said: (Dec 5, 2014)  
In short term SODAR is that process where you can measure the wind speed in various speed terms.

Malini Madhavan said: (Jul 25, 2015)  
What is Antarctic expedition? Please explain it.

Ramiz Khan said: (Aug 18, 2015)  
Hi guys please let me understand about Antarctic Expedition.

Sreyas Babu said: (Mar 9, 2016)  
Is it so hard to google it?

Patil said: (Apr 6, 2016)  
Please tell me the expedition that carried until now?

Raghu said: (Nov 23, 2017)  
Sodar systems are like radar (radio detection and ranging) and lidar (light radar) systems except that sound waves rather than radio or light waves are used for detection. Other names used for sodar systems include sounder, echosounder and acoustic radar.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.