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Title: A study of the thermal plumes over Tirupati using sodar and microbarograph
Authors: Rao, D N
Reddy, K K
Kumar, T R Vijaya
Rao, S V B
Dutta, H N
Issue Date: Aug-1994
Publisher: NISCAIR-CSIR, India
Abstract: An acoustic sounder, operating at a frequency of 2.2 kHz and a probing range of 1 km, has been designed and developed for the study of atmospheric boundary layer. A detailed study of diurnal variations of height, onset and dissipation timings of thermal plumes has been made and it shows that the thermal plume are the characteristic features of daytime atmospheric conditions and do not show much seasonal variation in their occurrence. Diurnal variations of infrasonic pressure fluctuations have also been studied in detail using a microbarograph. Simultaneous observations made by sodar and microbarograph are able to detect the thermal plumes in the boundary layer. In addition, sodar and microbarograph data seem to correlate well to study the thermal plume activity in the atmosphere boundary layer.
Page(s): 259-264
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.23(4) [August 1994]

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