Characteristic of atmospheric stability in period 04-10 2002 for Ursynow-WAU
2003
Rozbicka, K. (Szkola Glowna Gospodarstwa Wiejskiego, Warszawa (Poland). Katedra Inzynierii Wodnej i Rekultywacji Srodowiska)
The paper presents atmosphere stability description by the use Richardson number (Ri). The calculation was done for two types of weather: sunny days (24h) and cloudy days (24h). In accordance with Oke stability static was divided as follows: unstable stability a-fully forced convection, b-mixed convection, c-free convection, d-neutral stabilitystable stability e-fully forced convection, f-damped forced convection, g-no convection. Richardson number accomplish negative value, which stand unstable static conditions (a, b) for more cases of day-time period both sunny and cloudy days. Stable static conditions particularly characterized by positive value of Ri appear for cloudless nights most frequently. A large diversity of static conditions was observed for night-time period with cloudy weather. The most ferquent static conditions in considered period is stable (maximum in october), then unstable (maximum in summer-time months)
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