The Introduction of Specific Water and Maximum Airborne Specific Water &the Improvement of Dynamic Equations on Non-Uniform Saturated Moist Atmosphere

• 作者: Xingrong Wang Yan Feng
• 来源期刊: 大气和气候科学(英文)
• 学科: 地球科学
• 关键词: AIRBORNE Liquid WATER SPECIFIC WATER MAXIMUM AIRBORNE SPECIFIC WATER AIRBORNE Coefficient Dynamic on NON-UNIFORM Saturated Moist ATMOSPHERE
• 年，卷（期）: 2015,（3）
• 页码范围: 245-256
• 页数: 12页
• 分类号: P4

摘要

To eliminate the irrational supposition that condensed liquid water always falls immediately, specific water m?and maximum airborne specific water mm are introduced into the dynamic framework on non-uniform saturated moist atmosphere (m?is the ratio of the airborne liquid water mass to the moist air mass in unit cubage moist air, mm is its maximum value with , , and are airborne coefficient, vertical velocity and saturated specific humidity respectively). The balance equation between water vapor and airborne liquid water is derived. From the balance equation, a new formula of precipitate rate is got. The analysis shows that in the air stream with some upward vertical velocity ( ), the condensed liquid water can precipitate under the condition with (q is specific humidity) and? only, otherwise it is detained in the air and becomes airborne liquid water. Not only does precipitating liquid water contain condensed liquid water, but also contains converged and existing airborne liquid water. Following above discussion, improved dynamic equations on non-uniform saturated moist atmosphere are provided.