| 基于MODIS影像序列的三峡截流前后洞庭湖面积变化序列分析(英文) |
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| 引用本文： | 田伟国,彭佳栋,沈军,李赛.基于MODIS影像序列的三峡截流前后洞庭湖面积变化序列分析(英文)[J].农业科学与技术,2012(6):1309-1313,1334. |
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| 作者姓名： | 田伟国 彭佳栋 沈军 李赛 |
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| 作者单位： | 湖南益阳市气象局;湖南省气候中心 |
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| 基金项目： | Supported by the Special Fund for Climate Changes of China Meteorological Administration (CCSF201205)~~ |
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| 摘 要： | 目的]基于MODIS影像序列,对三峡截流前后洞庭湖面积变化序列进行分析。方法]基于2000～2010年的MODIS影像序列,分析三峡大坝建立前后,洞庭湖水体面积在枯水期和丰水期的变化,同时对汛期和干旱期洞庭湖面积变化与城陵矶水文观测站的相关关系进行研究。结果]自三峡大坝建立后,对洞庭湖在枯水期和丰水期的水体面积差有很大影响;在枯水期,洞庭湖水体面积与城陵矶水位线性关系较弱,而在丰水期,洞庭湖面积变化与城陵矶水位有较强的线性关系。结论]该研究通过对城陵矶水位变化过程可大致估算出洞庭湖面积变化的大小,为洞庭湖水体变化的研究提供的研究基础。
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| 关 键 词： | 洞庭湖 MODIS 面积变化 |
Analysis on the Area of Dongting Lake Before and After Building Three Gorges Dam Based on MODIS Image Sequences |
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| Weiguo TIAN, Jiadong PENG,Jun SHEN,Sai LI.Analysis on the Area of Dongting Lake Before and After Building Three Gorges Dam Based on MODIS Image Sequences[J].Agricultural Science ＆ Technology,2012(6):1309-1313,1334. |
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| Authors: | Weiguo TIAN Jiadong PENG Jun SHEN Sai LI |
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| Institution: | 1. Meteorological Bureau of Yiyang, Yiyang 415004, China 2. Hunan Climate Center, Changsha 410119, China |
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| Abstract: | Objective] This study aimed to analyze the changes in the area of Donting Lake before and after building Three Gorges Dam based on MODIS image sequences. Method] Based on the MODIS image sequences of 2000-2010, the change in the area of Dongting Lake in dry season and wet season before and after building Three Gorges Dam was analyzed, and the correlation between the change of the lake area in flood season and drought season and the record of Chenglingji Hydrological Observation Station was studied. Result] The construction of Three Gorges Dam greatly influenced the area of Dongting Lake in dry season and wet season that in dry season, the linear relationship between the lake area and the waterline of Chenglingji was weak, while it was strong in wet season. Conclusion] This study can estimate the changes of the area of Dongting Lake through the analysis on the waterline changes in Chenglingji, providing basis for the study on the changes in the area of Dongting Lake. |
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| Keywords: | Dongting Lake MODIS Change of area |
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