| 青藏高原区域性积雪增量序列及其变化特征 |
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| 引用本文： | 臧海佳,周自江.青藏高原区域性积雪增量序列及其变化特征[J].气象,2009,35(6):77-81. |
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| 作者姓名： | 臧海佳 周自江 |
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| 作者单位： | 1. 北京大学物理学院大气科学系,北京,100871;国家气象信息中心
2. 国家气象信息中心 |
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| 摘 要： | 利用青藏高原83个气象台站的逐日积雪观测资料,充分考虑每次降雪过程所引起的积雪变化,建立了该地区1960-2007年度的区域性积雪增量序列,并讨论了其长期变化特征.结果表明:(1)积雪增量序列具有其他积雪参数指标的代表性,又较其他积雪参数指标序列有明显的统计学优点.(2)在48个年度里,1960-1966年度青藏高原区域性积雪增量处于负位相,1967-1998年度为多雪的正位相,1999-2007年度又为少雪的负位相,其中1998年度是个具有显著性的突变点.
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| 关 键 词： | 青藏高原 积雪增量序列 年代际变化 |
| 收稿时间： | 2008/9/10 0:00:00 |
| 修稿时间： | 2009/4/10 0:00:00 |
Regional Snow Depth Increment Time Series with Its Variation in the Qinghai-Tibet Plateau |
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| Zang Haijia and Zhou Zijiang.Regional Snow Depth Increment Time Series with Its Variation in the Qinghai-Tibet Plateau[J].Meteorological Monthly,2009,35(6):77-81. |
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| Authors: | Zang Haijia and Zhou Zijiang |
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| Affiliation: | 1.Department of Atmospheric Sciences;School of Physics;Peking University;Beijing 100871;2.National Meteorological Information Center |
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| Abstract: | Based on the snow depth observation data from 83 high-elevation meteorology stations located in the Qinghai-Tibet Plateau during 1959-2007,the time series of regional snow depth increment that shows the snow depth variation with every snowfall events has been constructed.The results show that(1) comparing with the monthly or annual maximum snow depth and the accumulated snow depth series,the new series can represent the two others,has excellent features in statistics,and is the most stable one;and(2) the re... |
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| Keywords: | the Qinghai-Tibet Plateau snow depth increment series inter-decadal variation |
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