基于MODIS数据的甘肃主要水库水体面积变化特征
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摘要
掌握甘肃主要水库的水体面积变化规律,对"甘肃省国家生态安全屏障综合试验区"建设具有重要参考意义。基于2000—2014年MODIS的8 d合成地表反射率产品MOD09资料,利用WI1水体指数,对甘肃四大水库双塔、昌马、红崖山和刘家峡的水体面积进行监测,并与兰州区域气候中心实时接收的卫星资料目视解译结果进行对比、建立相关关系,进而对上述水库水体面积变化状况进行研究。结果表明:甘肃四大水库8 d合成产品MOD09反演的水体与卫星实时资料目视解译结果均具有很好的相关性,且变化趋势较一致,MOD09产品反演结果能够反映水体实时变化状况,可用于水库水体面积的变化特征研究。近10 a多,甘肃四大水库水体面积表现出春季或秋季较大、夏季最小的年内分布特征,各水库水体面积的年际变化趋势较复杂,疏勒河上的昌马和双塔水库春、夏、秋三季水体面积的年际变化趋势不明显,而红崖山和刘家峡水库水体面积均呈波动增加趋势,这对甘肃中西部农业灌溉极为有利。
It is important to grasp the temporal change characteristics of water areas of main reservoirs in Gansu for the construction of comprehensive experimental zone of national ecological security barrier in Gansu Province. Based on the 8-day composited surface reflectance products of MODIS(MOD09) from 2000 to 2014, the water areas of Shuangta, Changma, Hongyashan and Liujiaxia reservoirs in Gansu were monitored by using water index of WI1, which was compared with the visual interpreted water areas of real-time satellite data from Lanzhou Regional Climate Center(LZRCC), and their relationship was established. And then the climatic change characteristics of water areas of the four reservoirs were analyzed. Results show that the water areas of the four reservoirs in Gansu retrieved by WI1 based on MOD09 data had better correlation with the real-time monitoring water areas from LZRCC, and their change trends were almost consistent, which indicated that MOD09 data were able to use the research on the climatic changes of reservoir water areas. The interannual change of water areas of the four reservoirs in Gansu was obvious, and the water areas were largest in spring or autumn, while it was smallest in summer. The annual change trends of water areas of the four reservoirs in different seasons were more complex over the last 10 years. Overall, the water areas of Changma and Shuangta reservoirs had no obvious change trend, while that of Hongyashan and Liujiaxia reservoirs in spring, summer and autumn increased volatility over the last 10 years, which was beneficial to agricultural irrigation in middle and western Gansu.
It is important to grasp the temporal change characteristics of water areas of main reservoirs in Gansu for the construction of comprehensive experimental zone of national ecological security barrier in Gansu Province. Based on the 8-day composited surface reflectance products of MODIS(MOD09) from 2000 to 2014, the water areas of Shuangta, Changma, Hongyashan and Liujiaxia reservoirs in Gansu were monitored by using water index of WI1, which was compared with the visual interpreted water areas of real-time satellite data from Lanzhou Regional Climate Center(LZRCC), and their relationship was established. And then the climatic change characteristics of water areas of the four reservoirs were analyzed. Results show that the water areas of the four reservoirs in Gansu retrieved by WI1 based on MOD09 data had better correlation with the real-time monitoring water areas from LZRCC, and their change trends were almost consistent, which indicated that MOD09 data were able to use the research on the climatic changes of reservoir water areas. The interannual change of water areas of the four reservoirs in Gansu was obvious, and the water areas were largest in spring or autumn, while it was smallest in summer. The annual change trends of water areas of the four reservoirs in different seasons were more complex over the last 10 years. Overall, the water areas of Changma and Shuangta reservoirs had no obvious change trend, while that of Hongyashan and Liujiaxia reservoirs in spring, summer and autumn increased volatility over the last 10 years, which was beneficial to agricultural irrigation in middle and western Gansu.
引文
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[19] 韩娣爱,张百祖,王仙红.昌马水库旱限水位确定分析[J].甘肃农业,2015(9):61-62.
[20] 殷兆君.双塔水库病害分析及综合防渗加固措施[J].水利规划与设计,2015(10):117-118.
[21] 王明峰.民勤县红崖山水库扩建增容方案比选[J].水利规划与设计,2017(8):9-10.
[22] 姚文艺,侯素珍,丁赟.龙羊峡、刘家峡水库运用对黄河上游水沙关系的调控机制[J].水科学进展,2017,28(1):1-13.
[23] 戴梦,陈健,吴珊.基于MODIS影像的鄱阳湖水面面积变化监测[J].科技经济市场,2016(10):177-178.
[2] 王江海.甘肃河西地区节水农业发展研究[D].兰州:兰州大学,2014.
[3] 李玲萍,胡丽莉,刘维成,等.河西走廊东部夏季沙尘暴气象要素变化特征[J].干旱气象,2017,35(3):427-432.
[4] 李加福.20世纪40年代甘肃河西地区水利建设[D].兰州:兰州大学,2013.
[5] 毛德华,韩德麟,张发旺,等.塔里木河流域水资源、环境与管理[M].北京:中国环境科学出版社,1998:22-24.
[6] 鲍超,方创琳.干旱区水资源开发利用对生态环境影响的研究进展与展望[J].地理科学进展,2008,27(3):38-46.
[7] 李艳丽,李永华,陈新均,等.党河水库入库径流量的变化特征及对气候变化的响应[J].干旱气象,2017,35(6):984-990.
[8] 朱鹤.遥感技术在地表水源地水体监测中的应用研究[D].北京:中国水利水电科学研究院,2013.
[9] 易永红.植被参数与蒸发的遥感反演方法及区域干旱评估应用研究[D].北京:清华大学,2008.
[10] MCFEETERS S K.The use of the normalized difference water index (NDWI) in the delineation of open water features[J].International Journal of Remote Sensing,1996,17(7):1425-1432.
[11] 徐涵秋.利用改进的归一化差异水体指数(MNDWI)提取水体信息的研究[J].遥感学报,2005,9(5):589-595.
[12] 莫伟华,孙涵,钟仕全,等.MODIS水体指数模型(CIWI)研究及其应用[J].遥感信息,2007(5):16-21.
[13] 丁莉东,吴昊,王长健,等.MODIS图像湖泊水体信息的快速识别与制图[J].海洋测绘,2006,26(6):31-34.
[14] 丁莉东,吴昊,王长健,等.基于谱间关系的MODIS遥感影像水体提取研究[J].测绘与空间地理信息,2006,29(6):25-27.
[15] 廖程浩,刘雪华.MODIS数据水体判识指数的识别效果比较分析[J].国土资源遥感,2008(4):22-26.
[16] 郭鹏,邹春辉,赵学斌.MODIS影像水体监测方法研究进展[J].气象科技,2012,40(6):869-873.
[17] 郭鹏.基于MODIS和HJ-1数据的宿鸭湖水库面积遥感监测研究[J].气象与环境科学,2014,37(3):49-54.
[18] 王文涛.甘肃河西荒漠化地区水库库区生态工程效益分析[J].甘肃水利水电技术,2009,45(2):61-62.
[19] 韩娣爱,张百祖,王仙红.昌马水库旱限水位确定分析[J].甘肃农业,2015(9):61-62.
[20] 殷兆君.双塔水库病害分析及综合防渗加固措施[J].水利规划与设计,2015(10):117-118.
[21] 王明峰.民勤县红崖山水库扩建增容方案比选[J].水利规划与设计,2017(8):9-10.
[22] 姚文艺,侯素珍,丁赟.龙羊峡、刘家峡水库运用对黄河上游水沙关系的调控机制[J].水科学进展,2017,28(1):1-13.
[23] 戴梦,陈健,吴珊.基于MODIS影像的鄱阳湖水面面积变化监测[J].科技经济市场,2016(10):177-178.