| 基于MODIS数据的雪水当量监测模型研究 |
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| 引用本文： | 李民1,2,刘志辉1,2,3,房世峰1,2. 基于MODIS数据的雪水当量监测模型研究[J]. 水土保持研究, 2007, 14(4): 74-76,81 |
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| 作者姓名： | 李民1 2 刘志辉1 2 3 房世峰1 2 |
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| 作者单位： | 1. 新疆大学资源与环境科学学院, 乌鲁木齐, 830046;2. 新疆绿洲生态重点实验室, 乌鲁木齐, 830046;3. 干旱、半干旱区可持续发展国际研究中心, 乌鲁木齐, 830046 |
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| 摘 要： | 依据对MODIS数据36个波段波谱值的研究,选择对雪深信息最敏感的两个波段(第1波段,第3波段),采用“度日法”及积雪消融过程中的实测资料,建立了雪水当量统计模型.通过实测数据的进一步验证,该雪水当量监测模型的精度达到了0.86,可以为融雪径流计算、融雪洪水预测预警等工作提供重要的参数,为相关部门提供决策支持.
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| 关 键 词： | MODIS 雪水当量 监测模型 |
Study of Snow Water Equivalent Monitoring Model Based on MODIS Data |
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| LI Min1,2,LIU Zhi-hui1,2,3,FANG Shi-feng1,2. Study of Snow Water Equivalent Monitoring Model Based on MODIS Data[J]. Research of Soil and Water Conservation, 2007, 14(4): 74-76,81 |
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| Authors: | LI Min1 2 LIU Zhi-hui1 2 3 FANG Shi-feng1 2 |
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| Affiliation: | 1. College of Resources and Environment Science, Xinjiang University, Urumqi, 830046, China;2. Oasis Ecology Key laboratory of Xinjiang Uygur Autonomous region, Xinjiang University, Urumqi, 830046, China;3. International Center for Desert Affairs-Research on Sustainable Development in Arid and Semi-arid Lands, Urumqi, 830046, China |
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| Abstract: | Two wave bands(1st wave band,third wave band) were chosen which are sensitive to snow depths based on 36-band spectrum of MODIS data.A snow equivalent statistical model was established by using the degree-day factor and a lot of measured data.The accuracy of snowmelt equivalent model reached 0.86,which would provide important parameters for snowmelt runoff computation,prediction,snowmelt flood forecasting and warning and also offer advice for the relevant departments. |
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| Keywords: | MODIS snow water equivalent monitoring model |
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