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中国沙漠 ›› 2000, Vol. 20 ›› Issue (3): 338-340.

• 论文 • 上一篇    下一篇

贺兰山地区云凝结核浓度的测量及分析

樊曙先1, 安夏兰2   

  1. 1. 宁夏大学 化学科学与工程系, 宁夏 银川 750021;
    2. 宁夏气象科学研究所, 宁夏 银川 750002
  • 收稿日期:1999-12-03 修回日期:2000-01-15 出版日期:2000-09-20 发布日期:2000-09-20
  • 作者简介:樊曙先(1963-),女(汉族),四川西充县人,副教授,主要从事大气物理化学研究。
  • 基金资助:
    国家气象科学基金云物理项目(93-3J-4/6010);国家自然科学基金项目(49565010)共同资助

Measurement and Analysis of the Concentration of Cloud Condensation Nuclei in MT.Helanshan Area

FAN Shu-xian1, AN Xia-lan2   

  1. 1. Department of Chemical Science & Engineering, Ningxia University, Yinchuan 750021, China;
    2. Ningxia Institute of Meteorological Science, Yinchuan 750002, China
  • Received:1999-12-03 Revised:2000-01-15 Online:2000-09-20 Published:2000-09-20

摘要: 利用热扩散型云凝结核计数器在贺兰山地区进行地面和空中云凝结核(CCN)观测。结果表明,在该地区夏季地面平均CCN浓度为610 cm-3,最大浓度达104 cm-3。沙尘天气现象没有明显地增加CCN浓度。层状云中CCN浓度随高度变化不大。

关键词: 云凝结核, 测量, 分析, 贺兰山地区

Abstract: The concentration of cloud condensation nuclei is determined from surface and aircraft measurements at Mt.Helanshan area.Tests were performed using a horizontal thermal diffusion chamber from 1994 to 1995.The results show the mean values of concentrations are 610 cm-3 at supersaturation of 0.5% at ground level.The CCN concentration almost do not change with altitudes in stratus cloud over Ningxia area.The resource of sand and dust particles has little influence on the CCN concentrations.

Key words: cloud condensation nuclei, measurement, analysis, Helan mountain region