GENERAL ENQUIRIES: Tel: + 27 12 841 2911 | Email: callcentre@csir.co.za

Show simple item record

dc.contributor.author Kalapureddy, MCR
dc.contributor.author Kumar, KK
dc.contributor.author Sivakumar, V
dc.contributor.author Ghosh, AK
dc.contributor.author Jain, AR
dc.contributor.author Reddy, KK
dc.date.accessioned 2007-06-29T07:56:48Z
dc.date.available 2007-06-29T07:56:48Z
dc.date.issued 2007-04
dc.identifier.citation Kalapureddy, MCR et al. 2007. Diurnal and seasonal variability of TKE dissipation rate in the ABL over a tropical station using UHF wind profiler. Journal of Atmospheric and Solar-Terrestrial Physics, Vol. 69 pp 419-430 en
dc.identifier.issn 1364-6826
dc.identifier.uri http://hdl.handle.net/10204/757
dc.description http://www.sciencedirect.com/science/journal/13646826 en
dc.description.abstract This paper presents the diurnal and seasonal variation of Turbulence Kinetic Energy (TKE) dissipation rate (ε) in the Atmospheric Boundary-Layer (ABL) over a tropical station, Gadanki (13.5° N, 79.2° E) in India. Doppler spectral width measurements made by Lower Atmospheric Wind Profiler (LAWP) operating at 1357 MHz are utilized to estimate ε in the height region of 0.5–4.0 km on clear air days. Various non-turbulent spectral broadenings are calculated and separated out from the observed spectral width before estimating ε. It is found that in the lower tropospheric height region ε is in the range from 10−5.0 to 10−1.0 m2 s−3. ε showed significant diurnal variation in the boundary-layer. The larger values of ε, 10–2.7 m2 s−3, are noted to be associated with the Convective Boundary-Layer (CBL). The parameter ε is also showing significant seasonal variation. In summer and monsoon seasons the boundary-layer depths are observed up to a height of 4.0 km while the same are confined to below 2.0 km in post-monsoon and winter seasons. en
dc.language.iso en en
dc.publisher Pergamon-Elsevier Science Ltd en
dc.subject ABL en
dc.subject Atmospheric boundary-layer en
dc.subject Turbulence energy dissipation rate en
dc.subject Radar doppler spectral width en
dc.subject UHF wind profiler en
dc.title Diurnal and seasonal variability of TKE dissipation rate in the ABL over a tropical station using UHF wind profiler en
dc.type Article en


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ResearchSpace


Advanced Search

Browse

My Account