| 利用遥感方法估算华北平原陆面蒸散量 |
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| 引用本文： | 赵静,邵景力,崔亚莉,谢振华.利用遥感方法估算华北平原陆面蒸散量[J].城市地质,2009,4(1):43-48,42. |
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| 作者姓名： | 赵静 邵景力 崔亚莉 谢振华 |
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| 作者单位： | 1. 中国地质大学,北京,100083
2. 北京市水文地质工程地质大队,北京,100195 |
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| 摘 要： | 本文主要讨论了遥感技术在水文学领域的应用。利用基于能量平衡原理的SEBS模型，结合NOAA／AVHRR数据，通过遥感方法估算了华北平原的区域陆面蒸散量，并分析了不同潜水埋深条件下植被指数对蒸散发的影响。通过遥感估算方法得到，华北平原6～8月份是蒸散量较高时期，变化幅度较大；1、2月和11、12月是蒸散量较低时期，变化幅度较小。其日蒸散量变化范围在0～8mm之间；年蒸散量在520-1100mm之间，平均为700-800mm。地下水埋深较浅的沿海、黄河沿岸以及河南黄河以北的农业区为蒸散发的高值区。在不同潜水埋深条件下，蒸散量与植被指数之间均存在线性正相关性。且在潜水埋深介于1～2m的情况下，陆面蒸散与植被指数间的关系最明显，两者之间的相关性达到0．669。
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| 关 键 词： | 蒸散发 遥感 华北平原 NOAA |
Estimating Regional Evapotranspiration in North China Plain with Remote Sensing Method |
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| ZHAO Jing,SHAO Jingli,CUI Yali,XIE Zhenhua.Estimating Regional Evapotranspiration in North China Plain with Remote Sensing Method[J].City Geology,2009,4(1):43-48,42. |
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| Authors: | ZHAO Jing SHAO Jingli CUI Yali XIE Zhenhua |
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| Institution: | ZHAO Jing~1,SHAO Jingli~1,CUI Yali~1,XIE Zhenhua~2 (1.China University of Geosciences,Beijing 100083,China,2.Hydrogeological , Engineering Geological Team of Beijing,Beijing 100195) |
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| Abstract: | The paper mainly discussed about application of remote sening technology in the hydrological field.It estimated volume of regional land evapotranspiration in North China Plain with NOAA/AVHRR data and the SEBS model which is basing on energy balance theory,and then analyzed relationship between NDVI and evapotranspiration volume under conditions of different depths of groundwater table.The calculation results showed that daily evapotranspiration volume of North China Plain was relatively high during every J... |
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| Keywords: | NOAA |
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