湖北电线积冰统计分析及积冰逆温层结研究

胡艳楠; 牛生杰; 吕晶晶; 周悦

doi:10.3878/j.issn.1006-9585.2016.15267

湖北电线积冰统计分析及积冰逆温层结研究

doi: 10.3878/j.issn.1006-9585.2016.15267

胡艳楠^{1, 2, 3,},
牛生杰^{1, 2},
吕晶晶^{1, 2},
周悦⁴

1.
南京信息工程大学大气物理学院, 南京 210044
2.
江苏省大气环境与气象装备协同创新中心, 南京 210044
3.
中国气象局气象干部培训学院河北分院, 保定 071000
4.
武汉区域气候中心, 武汉 430074

基金项目:

国家自然科学基金项目 NSFC, Grants 41375138, 41505121, and 41271515

详细信息

作者简介:
胡艳楠,女,1989年出生,硕士研究生,主要从事云雾降水物理学研究。E-mail:huyn_13@nuist.edu.cn

中图分类号: P467
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- 被引次数: 0
出版历程
- 收稿日期: 2015-12-02
- 网络出版日期: 2016-05-11
- 刊出日期: 2017-02-01

Statistical Analysis and Inversion Study on Ice Accretion in Hubei Province

Yannan HU^{1, 2, 3
,},
Shengjie NIU^{1, 2},
Jingjing LÜ^{1, 2},
Yue ZHOU⁴

1.
School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044
2.
Collaborative Innovation Center on Atmospheric Environment and Equipment Technology, Nanjing 210044
3.
Hebei Branch of China Meteorological Administration Training Center, Baoding 071000
4.
Wuhan Regional Climate Center, Wuhan 430074

Funds:

National Natural Science Foundation of China NSFC, Grants 41375138, 41505121, and 41271515

摘要

摘要: 利用2009~2013年冬季华中电网电线覆冰在线观测系统对湖北省500 kV高压输电线路积冰状况进行实时观测获取的资料，结合MICAPS常规气象资料、探空数据及NCEP再分析资料，对湖北形成积冰的天气形势、积冰持续时间以及形成积冰的逆温层结进行研究。结果表明：积冰的高空环流形势主要是小槽发展型、横槽型和低槽东移型3类，分别占43.8%、31.2%、25%；电线积冰主要发生在每年的1月、2月、11月、12月，月平均积冰时数分别为65、42、11、9；积冰可分为降水型积冰和云雾型积冰，降水型积冰过程中，900~700 hPa高度间存在由北至南风向切变，冷暖空气交汇形成愈加深厚的逆温对降水积冰维持与发展起到重要的作用。
- 电线积冰 /
- 天气形势 /
- 逆温层
Abstract: The data collected on the transmission lines of Central China Power Grid from 2009 to 2013 in Hubei Province, the MICAPS meteorological data, the atmospheric soundings, and the NCEP reanalysis data are analyzed to investigate the synoptic situation, the duration of the wire icing, and the inversion layer during the wire icing. Results show that the upper-level circulation during the wire icing process can be divided into three types:Small transverse trough development-oriented type, transverse trough type, and eastward-moving low trough type. The occurrence frequency of each type is 43.8%, 31.2%, and 25%, respectively. Wire icing mainly occurs in January, February, November, and December and the average monthly icing hours in each individual month are 65 h, 42 h, 11 h, and 9 h. The icing processes can be divided into two types:Precipitation icing and foggy icing. A shear of wind direction from north to south could be found in the layer between 900 hPa and 700 hPa when precipitation icing occurs. A far more thick inversion layer could be developed, which is favorable for the maintenance and development of the icing process.
- Wire icing /
- Weather condition /
- Inversion layer

HTML全文

图 1 湖北地区高压输电线杆塔和气象站点分布及其海拔高度(阴影)

Figure 1. Distribution of high voltage transmission lines and meteorological stations

下载: 全尺寸图片幻灯片

图 3 2009～2013 年宜华线上月平均积冰时间变化

Figure 3. Monthly average of icing time on Yihua Line during 2009−2013

下载: 全尺寸图片幻灯片

图 4 积冰形成与消融时间分布

Figure 4. Distribution of ice formation and melting time

下载: 全尺寸图片幻灯片

图 5 2009～2013 年宜华线上积冰过程中逆温层出现的频次、逆温强度与(a)持续时间和(b)最大积冰厚度

Figure 5. Frequency of inversion layer occurrence, inversion intensity and(a)duration and(b)the maximum ice thickness on Yihua Line during 2009−2013

下载: 全尺寸图片幻灯片

图 6 2010 年2 月10～12 日宜华线积冰过程中积冰厚度、温度和6 h累计降水量随时间的变化

Figure 6. Temporal variations of ice thickness, temperature, and 6-h accumulative precipitation during icing on Yihua Line in 10−12 Feb 2010

下载: 全尺寸图片幻灯片

图 7 2010 年2 月(a)10 日20:00、(b)11 日08:00、(c)11 日20:00、(d)12 日08:00 武汉探空站的温度(实线)、相对湿度(点线)廓线图

下载: 全尺寸图片幻灯片

图 8 2010 年2 月10～12 日宜华线降水积冰过程中(a)水汽通量(阴影)与水平风速和风向(箭头)、(b)水汽通量散度的垂直剖面

Figure 8. Vertical cross sections of(a)the moisture flux(shadings)and horizontal wind speed and direction(vectors)and(b)the moisture flux divergence during icing onYihua Line in 10−12 Feb 2010

下载: 全尺寸图片幻灯片

表 1 2009～2013 年积冰过程

Table 1. Ice accretion on wires during 2009−2013

积冰类型	起止时间	持续时间/h	最大积冰厚度/mm
降水积冰	2009 年11 月15 日 16:00（北京时间，下同）至17 日11:00	43	13.5
	2010 年2 月10 日23:00 至12 日12:00	43	13.5
	2010 年2 月13 日20:00 至16 日11:00	37	22.5
	2011 年1 月2 日08:00 至3 日11:00	63	13.4
	2011 年1 月17 日21:00 至19 日12:00	27	14.7
	2011 年1 月19 日20:00 至21 日12:00	39	9.3
	2012 年1 月21 日11:00 至22 日12:00	40	9.3
	2012 年12 月26 日02:00 至27 日11:00	33	14.8
	2013 年2 月7 日14:00 至9 日12:00	46	14.5
云雾积冰	2010 年1 月11 日20:00 至12 日10:00	14	9.3
	2011 年1 月21 日22:00 至22 日12:00	14	9.3
	2011 年1 月28 日19:00 至29 日11:00	16	9.3
	2012 年1 月22 日17:00 至23 日11:00	18	9.0
	2013 年1 月9 日23:00 至10 日11:00	12	13.5
	2013 年1 月17 日18:00 至18 日10:00	16	14.6
	2013 年2 月9 日21:00 至10 日09:00	22	14.0

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