边界层-云合对云微物理学的影响,基于飞机在中国北方平原的观测
Yue Ke1, Sihan Liu2, Honglei Wang1
1China Meteorological Administration Aerosol-Cloud and Precipitation Key Laboratory, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
The Science of the total environment
|October 7, 2025
概括
这项研究分析了北中国平原的气溶和云特性,揭示了气溶分布和云特征的季节性变化. 边界层-云合影响了空气质量起源和云的特性,解的云显示出不同的气溶尺寸分布.
科学领域:
- 大气科学 大气科学
- 气溶科学 气溶科学
- 云物理 云物理
背景情况:
- 气溶与云的相互作用对大气动力学和能量平衡至关重要.
- 了解气溶和云微物理的垂直和光谱分布是必不可少的.
研究的目的:
- 研究气溶和云微物理变量的垂直和光谱分布.
- 分析边界层-云合对云特性的影响.
- 检查北中国平原上的气溶和云特征的季节性变化.
主要方法:
- 从2019年到2021年,利用35架飞机在北中国平原上进行观测.
- 分析的气溶数度 (Na),黑碳质量度 (MBC),云滴数度 (Nc),液态水含量 (LWC) 和冰晶数度 (Ni).
- 在合和脱的云条件之间进行区分,以研究边界层-云合.
主要成果:
- 气溶 (Na) 度在冬季达到峰值,并随高度变化,在2000-3500米以上变得均,取决于条件.
- 云滴数度 (Nc) 和液态水含量 (LWC) 显示单模垂直配置文件,而冰晶数度 (Ni) 则因季节而异.
- 分离的云受外部空气质的影响,而结合的云受内部空气质的影响;在春季和秋季云中观察到不同的气溶尺寸分布.
结论:
- 季节性变化显著影响气溶的垂直分布和云的微物理性质.
- 边界层-云合影响空气质量起源,并可以改变云滴和冰晶大小分布.
- 在云层内外的气溶尺寸分布特征没有受到边界层-云层合条件的显著改变.
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