摘要
为了计算青岛近海海域气溶胶粒子的干沉降通量,运用Gerber提出的湿度公式改进了Williams干沉降模型中湿度计算方法,使模型具有更加广泛的使用范围。利用改进后的模型讨论了湿度、风速、水气温差、破碎表面的转移系数和横向转移系数对不同粒径气溶胶粒子干沉降速率的影响。计算了不同粒径粒子的干沉降速率,并与干沉降速率的文献报道进行了比较。结果显示:改进的模型更适合于估算实际区域的气溶胶干沉降通量,可用于青岛近海干沉降通量的研究。
Earlier Williams' model was improved to calculate the dry deposition flux in the Qingdao area, taking into more careful account the growth effect of particles under high humidity conditions, based on the work of Gerber. The improved model can be widely used to predict the dry deposition velocity in an actual region. Sensitivity tests for dry deposition velocity in relation to relative humidity, wind velocity, air/water temperature differences, broken surface transfer coefficient and lateral transfer coefficient are discussed. A comparison of the modeled dry deposition velocities for particles of different sizes and some recently published measurements demonstrated that the improved model produced more realistic and consistent data than earlier Williams' models in an actual region such as the Qingdao area.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第3期445-450,共6页
Periodical of Ocean University of China
基金
国家自然科学基金项目 (499760 2 0
40 4 90 2 62 )资助
