Review Article
Study of Turbulence Kinetic Energy Budget over Jodhpur, India
P. Parth Sarthi*
Centre for Environmental Sciences, School of Earth, Biological and Environmental Sciences, Central University of Bihar, Patna 800014, Bihar, India
*Corresponding author: Centre for Environmental Sciences, School of Earth, Biological and Environmental Sciences, Central University of Bihar, Camp Office: BIT Campus-Patna, P.O-B.V. College, Patna 800014, Bihar, India, Email: drpps@hotmail.com
Article Information: Submission: 17/09/2014; Accepted: 27/01/2015; Published: 30/01/2015
Copyright: © 2015 Parth Sarthi P, et al. This is an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is
properly cited.
Abstract
Atmospheric turbulence plays an important role to understand the behavior of pollutants in lower atmosphere which has a large impact on surrounding
environment. In the present paper, the one-dimensional Turbulent Kinetic Energy (TKE) budget in a steady and homogeneous condition is studied. The data
from a 30m micrometeorological tower during Indian Summer Monsoon (ISM) of the year 1990 over a station Jodhpur (26.3° N, 73°E), which represents
a dry convective station and situated at the eastern part of ISM trough over the Indian subcontinent, is used. The tower data is of Fast and Slow Response
data. The Fast Response Data (FRD) sampled at (8 Hz) is collected at 4 m and 15 m levels whereas the Slow Response Data (SRD) sampled at (~1 Hz) is
collected at six levels viz. 1, 2, 4, 8, 15 and 30m. The analysis of each component of TKE budget is done for active and non-active phases of monsoon at
4m and 15m levels. All terms of TKE budget show considerable variations at 4m levels. At 15m, the variations of term are not remarkable. It has been found
that at both of the levels shear production term dominates over all other terms during active phase of monsoon while buoyancy dominates during day time at
4m level in both of phases. The buoyancy and shear terms influence mixing and transport of pollutants in the lower part of the atmosphere in day time during
active and non active phases of ISM. TKE budget over Jodhpur, Kharagpur and Varanasi shows that buoyancy is not a major contributing factor during the
summer monsoon season while major contributing factor is shear production.
