| 1951-2006年黑龙江省积雪初终日期变化特征分析 |
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| 引用本文： | 李栋梁,刘玉莲,于宏敏,李永生.1951-2006年黑龙江省积雪初终日期变化特征分析[J].冰川冻土,2009,31(6):1011-1018. |
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| 作者姓名： | 李栋梁 刘玉莲 于宏敏 李永生 |
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| 作者单位： | 南京信息工程大学,气象灾害省部共建教育部重点实验室,江苏,南京,210044;黑龙江省气候中心,黑龙江,哈尔滨,150030 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，冰冻圈科学国家重点实验室开放基金，中国气象局气象新技术推广项目 |
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| 摘 要： | 利用黑龙江省1951-2006年积雪初终日期资料, 采用统计方法研究了黑龙江省积雪初终日期的时空变化特征. 结果表明: 黑龙江省多年平均有5.5个月的可积雪期, 积雪初日北早南晚, 南北相差1个月;终日南早北晚, 南北相差1.3个月. 积雪初日推后1.9 d·(10a)~(-1), 终日提早1.6 d·(10a)~(-1). 积雪初/终日期的退后/提前主要在较低纬度的平原地区.
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| 关 键 词： | 黑龙江 积雪初日 积雪终日 EOF 趋势系数 |
Spatial-Temporal Variation of the Snow Cover in Heilongjiang Province in 1951-2006 |
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| LI Dong-liang,LIU Yu-lian,YU Hong-min,LI Yong-sheng.Spatial-Temporal Variation of the Snow Cover in Heilongjiang Province in 1951-2006[J].Journal of Glaciology and Geocryology,2009,31(6):1011-1018. |
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| Authors: | LI Dong-liang LIU Yu-lian YU Hong-min LI Yong-sheng |
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| Institution: | LI Dong-liang1,LIU Yu-lian2,YU Hong-min2,LI Yong-sheng2 (1. Nanjing University of Information Science , Technology/Key Laboratory of Meteorological Disaster of Ministry of Education,Nanjing Jiangsu 210044,China,2. Heilongjiang Climate Center,Harbin Heilengjiang 150030,China) |
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| Abstract: | In this paper, the spatial and temporal characteristics of snow cover in Heilongjiang Province are analyzed by using the snow cover data of Heilongjiang Province for the period 1961-2005. It is found that: There are 5.5 months having snow cover on an average. The beginning date of snow cover in north is one month early than that in south. The ending date of snow cover in north is 1.3 month late than that in south. Temporally, the beginning date of snow cover is retreating by 1.9 d·(10a)~(-1)and the ending date of snow cover is advancing by 1.6 d·(10a)~(-1) . The retreat and advance take place mainly in the plains of lower latitude. |
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| Keywords: | EOF Heilongjiang Province beginning date of snow cover ending date of snow cover EOF trend coefficient |
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