黑龙江省汛期逐时降水的时空变化特征分析

doi:10.7522/j.issn.1000-0240.2016.0147

冰川冻土 ›› 2016, Vol. 38 ›› Issue (5): 1258-1263.doi: 10.7522/j.issn.1000-0240.2016.0147

黑龙江省汛期逐时降水的时空变化特征分析

张洪玲¹, 尹嫦娇², 魏磊¹, 刘赫男¹, 朱红蕊¹

1. 黑龙江省气候中心, 黑龙江哈尔滨 150030;
2. 佳木斯市气象局, 黑龙江佳木斯 154000

收稿日期:2016-03-31 修回日期:2016-08-05 出版日期:2016-10-25 发布日期:2017-01-22
作者简介:张洪玲(1979-),女,黑龙江双鸭山人,高级工程师,2006年在沈阳农业大学获硕士学位,从事气候资源开发利用和气候可行性论证工作.E-mail:zhl0469@qq.com.
基金资助:
中国清洁发展机制基金赠款项目（1213112）资助

Temporal and spatial variations of hourly precipitation in Heilongjiang Province in the flood season

ZHANG Hongling¹, YIN Changjiao², WEI Lei¹, LIU Henan¹, ZHU Hongrui¹

1. Heilongjiang Climate Center, Harbin 150030, China;
2. Jiamusi Meteorological Office, Jiamusi 154000, Heilongjiang, China

Received:2016-03-31 Revised:2016-08-05 Online:2016-10-25 Published:2017-01-22

摘要/Abstract

摘要：

利用黑龙江省1961-2014年逐时降水资料，采用线性倾向估计方法分析了汛期（5-9月）降水量、降水频率、降水强度以及不同持续时间降水的时空变化特征.结果表明：汛期逐时累积降水量平均为430.0 mm，高值区集中在松嫩平原东部和南部以及小兴安岭南部；降水频率平均为297.2 h，仅在省西部的齐齐哈尔、大庆和绥化等地以及哈尔滨西部地区偏少，其余地区台站均在300 h以上；降水强度平均在1.2~1.7 mm·h^-1之间，增加趋势显著（P<0.01），空间分布与降水频率分布相反；全省多数台站的汛期降水量、降水频率趋势变化不明显，但却有39%的台站降水强度增加明显.汛期降水量的日变化呈单峰型，超过半数的降水集中在11：00-22：00；降水频率的日变化表现出双峰型，00：00-04：00和13：00-19：00为高值区间；降水强度的日变化也呈单峰型，高值区间集中在13：00-18：00.全省的降水事件中短历时降水优势明显，降水量占总降水量的46.7%，降水历时占全部降水历时的49%；持续5~6 h的降水雨强最强，其次是持续3~4 h降水雨强，最弱的是持续1~2 h的降水雨强.

关键词: 黑龙江省, 汛期, 逐时降水

Abstract:

Based on hourly precipitation data from 1961 through 2014 in Heilongjiang Province, variations of precipitation, precipitation frequency and precipitation intensity in flood season (May-September) are analyzed. It is found that the precipitation in the flood season was 430.0 mm, the precipitation frequency was 297.2 hours, the precipitation intensity was 1.2-1.7 mm·h^-1 and the precipitation intensity had increased obviously. The precipitation change trend and precipitation frequency in most stations were not obvious, but 39% of stations had changed obviously in precipitation intensity. The diurnal variation of precipitation showed a single peak, more than half of the precipitation had concentrated in 11:00-22:00; diurnal variation of precipitation frequency was bimodal, in 00:00-04:00 and 13:00-19:00; the diurnal variation of precipitation intensity also showed a single peak, with high value interval concentrated in 13:00 to 18:00. In the province, short duration precipitation had advantage obviously, accounted for 46.7% of the total, with rainfall duration accounting for 49% of all rainfall duration; continuous 5-6 hours precipitation intensity was the strongest one, followed by continuous 3-4 hours one, and the continuous 1-2 hours one was the weakest.

Key words: Heilongjiang Province, flood season, hourly precipitation

中图分类号:

P468.0+24

张洪玲, 尹嫦娇, 魏磊, 刘赫男, 朱红蕊. 黑龙江省汛期逐时降水的时空变化特征分析[J]. 冰川冻土, 2016, 38(5): 1258-1263.

ZHANG Hongling, YIN Changjiao, WEI Lei, LIU Henan, ZHU Hongrui. Temporal and spatial variations of hourly precipitation in Heilongjiang Province in the flood season[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2016, 38(5): 1258-1263.

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黑龙江省汛期逐时降水的时空变化特征分析

Temporal and spatial variations of hourly precipitation in Heilongjiang Province in the flood season

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