| 五台山积雪变化趋势及其影响因素 |
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| 引用本文： | 范强,刘楠,任天晨.五台山积雪变化趋势及其影响因素[J].水文,2023,43(4):111-115. |
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| 作者姓名： | 范强 刘楠 任天晨 |
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| 作者单位： | 太原理工大学,太原理工大学,太原理工大学 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 基于MODIS积雪产品与微波遥感数据，分析五台山2000—2019水文年积雪时空分布、变化趋势及与影响因素的Pearson相关性，结果表明：（1）五台山积雪期为10月至翌年4月，年内呈单峰型变化趋势，积雪集中于西北部。（2）积雪面积和积雪日数的年际变化呈显著减少趋势（p<0.05）。（3）积雪面积和积雪日数与海拔正相关，积雪面积在北坡高于南坡。（4）积雪面积与气温相关程度高于降水量，积雪面积在年内与气温和降水量日值呈显著负相关（p<0.05），在年际与气温年均值呈显著负相关（p<0.05）。
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| 关 键 词： | 积雪 时空分布 时空变化 地形因素 气象因素 |
| 收稿时间： | 2022/1/11 0:00:00 |
| 修稿时间： | 2022/1/11 0:00:00 |
Variation Trend of Snow Cover in Wutai Mountain and its Influencing Factors |
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| Fan Qiang,Liu Nan and Ren Tianchen.Variation Trend of Snow Cover in Wutai Mountain and its Influencing Factors[J].Hydrology,2023,43(4):111-115. |
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| Authors: | Fan Qiang Liu Nan and Ren Tianchen |
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| Institution: | Taiyuan University of Technology,Taiyuan University of Technology,Taiyuan University of Technology |
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| Abstract: | Wutai Mountain is the highest peak in North China and is significantly affected by climate warming. In order to study the snow cover change and the impact of climate warming in Wutai Mountain, the Snow Cover Area and Snow Cover Days data are obtained by gaining access to MODIS snow product combining with microwave remote sensing data. Through the spatial distribution and variation trend of snow parameters of Wutai Mountain and its response to topographic and meteorological factors from 2000 to 2020, The results are as follows: 1. Wutai Mountain has the most snow cover in the northwest, the change of Snow Cover Area is seasonal and the snow cover period is mainly from the end of October to next April. 2. The interannual variation of snow cover has a negative trend, and the interannual variation of Snow Cover Area and Snow Cover Days in each season also has a decreasing trend, which is not significant. The start of snow is significantly delayed, the end of snow is advanced and the duration of snow is shortened. 3. The Snow Cover Area decreases significantly in areas above 2500m above sea level, the fluctuant decreases in areas below 2500m, and each slop and aspect zoning show a fluctuant decreasing trend, which is not significant. Snow Cover Area is correlated with altitude and slope direction, but there is no significant correlation with slope. 4. Snow Cover Area has a significant negative correlation with temperature and precipitation in the year. On the interannual scale, the correlation between Snow Cover Area and temperature is significantly negative. Temperature is negatively correlated with snow parameters in each season, and precipitation is positively correlated with snow parameters in each season. 5. The variation trend of global snow cover and its influencing factors are basically the same as those of Wutai Mountain, but they still need to be further discussed and studied. |
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| Keywords: | Wutai Mountain Snow Cover Change Meteorological Factors Terrain Factors MODIS Snow Products |
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