福建古田人工增雨试验区大气冰核观测研究

doi:10.11755/j.issn.1006-7639(2019)-05-0844

干旱气象 ›› 2019, Vol. 37 ›› Issue (5): 844-849.DOI: 10.11755/j.issn.1006-7639(2019)-05-0844

福建古田人工增雨试验区大气冰核观测研究

胡淑萍^1,2，林文³，段卿⁴，兰建斌²，林冰²，江善赐²

1.成都信息工程大学大气科学学院，四川成都610225；
2.福建省古田县气象局，福建古田352200；
3.福建省气象科学研究所，福建福州350001；
4.福建省气象信息中心，福建福州350001

出版日期:2019-10-31 发布日期:2019-11-04
通讯作者: 林文（1983— ），女，硕士，高级工程师，主要从事大气物理相关研究. E-mail:donnakoon@foxmail.com。
作者简介:胡淑萍（1993— ），女，学士，助理工程师,主要从事大气物理相关研究. E-mail:695923002@qq.com。
基金资助:
福建省科技厅引导性项目（2018Y0003）及福建省气象局开放式气象科学研究基金项目（2018K09）共同资助

Observation and Study on Atmospheric Ice Nuclei in Gutian Artificial Precipitation Enhancement Experimental Area in Fujian

HU Shuping^1,2, LIN Wen³, DUAN Qing⁴, LAN Jianbin²,LIN Bing², JIANG Shanci²

1. College of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610225, China;
2. Gutian Meteorological Station of Fujian Province, Gutian 352200, Fujian, China;
3. Fujian Institute of Meteorological Sciences, Fuzhou 350001, China;
4. Fujian Meteorological Information Center, Fuzhou 350001, China)

Online:2019-10-31 Published:2019-11-04

摘要/Abstract

摘要： 为了解福建省古田人工增雨试验区大气冰核特征，2017年5—6月利用5 L便携式混合云室在古田站、石塔山站开展大气冰核观测，对大气冰核在不同海拔的分布特征、差异、来源及其与气象条件的相关性进行分析。结果表明：（1）当降水强度>5 mm·h-1时大气冰核受雨水冲刷影响明显；（2）不同活化温度下，各站下午观测的大气冰核浓度基本上大于上午；（3）古田站大气冰核浓度与温度正相关，与气压负相关，其余相关性不大；（4）西南来源的大气冰核浓度高于东面台湾海峡来源，相同来源下低海拔大气冰核浓度略高于高海拔；（5）相比我国其他城市，古田试验区测到的大气冰核浓度在活化温度为-20～-10 ℃时偏高，-30～-25 ℃时偏低；（6）当活化温度为-10 ℃时冰核浓度极低，古田试验区宜开展冷云催化人工增雨试验。

关键词: 大气冰核, BIGG云室, 人工增雨, HYSPLIT

Abstract: The improved 5 L mixing cloud chamber (BIGG cloud chamber) was used to measure the atmospheric ice nuclei (IN) at Gutian station and Shitashan station from May to June in 2017, for analyzing the characteristics of IN in Gutian artificial precipitation enhancement experimental area of Fujian Province. The distributions, differences and sources of IN at different altitudes were analyzed in this paper, even about the correlation between IN characteristics and meteorological conditions. The results are shown as follows: (1) The concentration of IN was obviously affected by rain erosion when rainfall intensity was higher than 5 mm·h-1. (2) At diffetent activation temperatures, the mean values of IN concentration measured at afternoon were mainly larger than those measured at morning both in these two stations. (3) At Gutian station, the variation of IN concentration had positive correlation with air temperature and negative correlation with air pressure, but the others had not been associated with it. (4) The concentration of IN transported from southwest was higher than that from the east orientation of Taiwan Strait, and from the same source it was slightly higher at low altitude than that at high altitude. (5) Compared with other observations in China, the concentration of IN in Gutian area was higher when the activation temperature was between -20 and -10 ℃ and it was lower when the activation temperature was between -30 and -25 ℃. (6) At -10 ℃, concentration of IN was extremely low. Therefore, it was reasonable using cold cloud seeding in Gutian area for artificial precipitation enhancement.

Key words: atmospheric ice nuclei, BIGG cloud chamber, artificial precipitation, HYSPLIT

中图分类号:

P401

胡淑萍, 林文, 段卿, 兰建斌, 林冰, 江善赐. 福建古田人工增雨试验区大气冰核观测研究[J]. 干旱气象, 2019, 37(5): 844-849.

HU Shuping, LIN Wen, DUAN Qing, LAN Jianbin, LIN Bing, JIANG Shanci. Observation and Study on Atmospheric Ice Nuclei in Gutian Artificial Precipitation Enhancement Experimental Area in Fujian[J]. Journal of Arid Meteorology, 2019, 37(5): 844-849.

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福建古田人工增雨试验区大气冰核观测研究

Observation and Study on Atmospheric Ice Nuclei in Gutian Artificial Precipitation Enhancement Experimental Area in Fujian

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