• CN 62-1175/P
• ISSN 1006-7639
• 双月刊
• 中国科技核心期刊
• 中国学术期刊综合评价数据库统计源期刊
• 中文科技期刊数据库收录期刊

• 论文 •

### 基于MODIS数据的甘肃主要水库水体面积变化特征

1. 1.四川省生态环境科学研究院，四川 成都 610041；
2.兰州区域气候中心，甘肃 兰州 730020
• 出版日期:2019-04-30 发布日期:2019-04-30
• 作者简介:郝小翠（1987— ）女，江苏如皋人，硕士，工程师，主要从事卫星遥感应用研究. E-mail：hao_xiaocui@126.com。
• 基金资助:
国家自然科学重点基金项目“我国典型夏季风影响过渡区陆-气相互作用及其对夏季风响应研究（41630426）”和高原大气与环境四川省重点实验室开放课题（PAEKL-2017-Y5）共同资助

### Change Characteristic of Water Areas of Main Reservoirs in Gansu Based on MODIS Data During 2000-2014

HAO Xiaocui1, CHEN Junhui1, HAN Tao2, WANG Dawei2, JIANG Youyan2

1. 1. Sichuan Provincial Academy of Ecological and Environmental Sciences, Chengdu 610041, China;
2. Lanzhou Regional Climate Center, Lanzhou 730020, China
• Online:2019-04-30 Published:2019-04-30

Abstract: 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.

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