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“Doppler sodar measurements of vertical wind speed in Moscow”статья
- Авторы: Lokoshchenko M.A., Perepyolkin V.G., Semenova N.V.
- Сборник: Proceedings of the 11th International Symposium on Acoustic Remote Sensing and Associated Techniques of the Atmosphere and Oceans
- Год издания: 2002
- Место издания: ISAC/CNR Rome, Italy
- Первая страница: 301
- Последняя страница: 306
- Аннотация: The Doppler sodar measurements of wind speed vertical component W at Moscow University have been carrying out since 2000 continuously on base of a phase control of useful echo-signal, instead of an usual amplitude control. The common principle of the calculation scheme is described. The accuracy of sodar measurements of W is discussed. If a vertical direction of a sound beam is precisely controlled the Doppler W calculation may be accepted as reliable in the case of nearly calm conditions, a flat relief of a surrounding area, and accounting non-symmetric intensity of thermal turbulence in upward and downward flows. The initial results for the lowest 200-300 m layer demonstrate an average tendency to upward diurnal movements, which accelerate with the height and, on the contrary, - to downward nocturnal ones.
- Добавил в систему: Локощенко Михаил Александрович