Some observations from the data taken in and around Kharagpur during the onset of the monsoon, 1990
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During MONTBLEX 1990, various observational platforms were operated at Kharagpur and the nearby Kalaikunda Air Base. Using the data from all the platforms, one can draw the following conclusions. The temperature and wind data obtained from various sensors have overall compatibility. Sodar wind data indicate the presence of a low level jet at around 300 m above ground. The inversion height may be evaluated from the vertical profile of the sodar back-scatter echo intensity. The sub-synoptic or synoptic scale convergence modulates the inversion height and the presence of cloud-base within the inversion height in turn modulates the sensible heat and momentum fluxes.
KeywordsBoundary layer inversion height back-scatter intensity surface parameters convective instability low level cloud-base height
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- Gupta M G 1990 MOCC Brief report, India Meteorological Department (New Delhi, India)Google Scholar
- Pradhan R, De U K and Sen P K 1994a Estimation of roughness length at Kharagpur micrometeorological tower site during monsoon onset of 1990;Mausam 45 184–186Google Scholar
- Pradhan R, De U K and Sen P K 1994b Surface sensible heat flux over a deep moist convective region and its interplay with synoptic and mesoscale features;Proc. Indian Acad. Sci. (Earth Planet. Sci) 103 353–367Google Scholar
- Roy B 1994 Doppler acoustic sounding studies of some atmospheric boundary processes in a moist convective region;Ph.D. Thesis submitted to Jadavpur University, Calcutta (India) 248 pagesGoogle Scholar
- Stull R B 1988 An introduction to boundary-layer meteorology (Kluwer Academic publishers) pp 180–183Google Scholar
- Thom A S 1975Momentum, mass and heat exchange of plant communities, vegetation and the atmosphere Principles, (ed) J L Monteith (London: Academic Press)1 57–109Google Scholar