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http://nopr.niscpr.res.in/handle/123456789/30596| Title: | Characteristics of turbulence in the atmospheric surface layer over a complex terrain |
| Authors: | Murthy, B S Dharmaraj, T |
| Issue Date: | Oct-2001 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Measurements of fluctuating wind components and temperature have been made in the atmospheric surface layer over a complex terrain in the campus of the Indian Institute of Tropical Meteorology, Pune, using sonic anemorneter at 5.2 m above the surface. Characteristics of turbulence, i.e. spectra of wind velocity components and turbulence statistics of wind are presented. The peak of normalized w-spectrum over a complex terrain for near-neutral condition was found to be ~ 0.6 as compared to ~ 0.4 over homogeneous terrain. The non-dimensional frequency maximum for w-component spectrum was observed to be 0.9 as compared to ~ 0.5 over homogeneous terrain. Empirical formulae for standard deviation of velocity components have been tested against observations over hilly terrain. Vertical flux of turbulence kinetic energy as a function of stability is also discussed. |
| Page(s): | 260-265 |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Appears in Collections: | IJRSP Vol.30(5) [October 2001] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJRSP 30(5) 260-265.pdf | 1.38 MB | Adobe PDF | View/Open |
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