Simultaneous measurements of wind profiles in the Moscow downtown and in a contiguous rural area were carried out in autumn and summer time. The urban-rural wind speed difference strongly depended on thermal stratification, strength of wind, and altitutde. On average, wind speed in the downtown was less than in the rural area, with 1-2 m/s difference below 100 m and 0.5-1 m/s at levels above 200 m; wind direction difference was within 10-20 degrees. Sometimes the differences were many times higher than averaged values.
Revised: September 11, 2006 |
Published: September 1, 2006
Citation
Kallistratova M.A., R. Kouznetsov, M.S. Pekour, V. Yushkov, and A. Svertilov. 2006.Comparison of Wind Fields in the ABL over Big City and Nearby Rural Site by Simultaneous Sodar Measurements. In International Symposium for the Advancement of Boundary Layer Remote Sensing, Garmisch-Partenkirchen, Germany, July 17-20, 2006, edited by Stefan Emeis, 106-108. Karlsruhe:Institut fur Meteorologie und Klimaforschung.PNNL-SA-51527.