基于MODIS的长江源区雪冰遥感监测及其变化规律分析

doi:10.11988/ckyyb.20160497

长江科学院院报 ›› 2017, Vol. 34 ›› Issue (3): 143-147.DOI: 10.11988/ckyyb.20160497

基于MODIS的长江源区雪冰遥感监测及其变化规律分析

骆腾飞¹,谭德宝²,文雄飞²,赵登忠²

1.河海大学计算机与信息学院, 南京 210098;
2.长江科学院空间信息技术应用研究所,武汉 430010

收稿日期:2016-05-20 出版日期:2017-03-01 发布日期:2017-03-10
作者简介:骆腾飞(1987-),男,湖北蕲春人,博士研究生,主要从事空间信息技术应用、雪冰遥感研究工作,(电话)027-82926959(电子信箱)tfluo@foxmail.com。
基金资助:
科技部软科学研究计划项目(2012GXS2B008);水利部中央级公益性科研院所基本科研业务费项目(CKSF2015018/KJ,CKSF2016263/KJ);中国清洁发展机制基金赠款项目(2013015)

Remotely-sensed Monitoring of Snow-ice in the Source Region of Changjiang River Based on MODIS and Analysis of Its Change Rule

LUO Teng-fei¹, TAN De-bao²,WEN Xiong-fei², ZHAO Deng-zhong²

1.College of Computer and Information, Hohai University, Nanjing 210098,China;
2.Spatial Information Technology Application Department, Yangtze River Scientific Research Institute, Wuhan 430010, China

Received:2016-05-20 Published:2017-03-01 Online:2017-03-10

摘要/Abstract

摘要： 利用2005—2014年的MODIS积雪产品,提取长江源区积雪覆盖率,结合同期相关气象站点的逐月平均气温数据和逐月月降水量以及直门达水文站的径流数据,通过相关分析的方法,对长江源区冰雪覆盖变化规律及其变化原因进行了探讨。结果表明:2005—2014年间,长江源区冰雪覆盖率总体呈小幅度的减少趋势;每年的10月份和11月份长江源区冰雪覆盖面积达到最大值,7月份和8月份达到最小值。另外,2005—2014年的4月份,曲麻莱月均气温和月均降水量对长江源区月均冰雪覆盖度的影响为:气温呈低度负相关,降水呈高度正相关;曲麻莱月均气温和月均降水量对直门达月均径流的影响为:气温呈中度正相关,降水呈低度正相关。研究结果可为长江源区水资源管理与生态环境保护提供支撑。

关键词: 长江源区, MODIS积雪产品, 雪冰覆盖面积, 气温, 降水量, 径流

Abstract: The ratio of snow-ice coverage in the source region of Changjiang River was extracted by using MODIS snow product. On this basis,the change rule and causes of snow-ice coverage in the source region of Changjiang River were investigated by means of correlation analysis based on monthly average temperature and monthly precipitation series data of relevant meteorological stations in the same period as well as runoff flow data of Zhimenda hydrological station. Results showed that the coverage ratios of snow-ice in the source region of Changjiang River presented a trend of slight decrease overall. The area of snow-ice coverage in the source region of Changjiang River always reached its maximum value in every October and November, and always reached its minimum value in every July and August. In addition, in April of 2005-2014, the monthly average coverage ratio of snow-ice in the source region of Changjiang River was slightly negatively related to monthly temperature of Qumalai station and highly positively related to monthly precipitation of Qumalai station; monthly runoff flow of Zhimenda had moderately positive correlation with monthly temperature of Qumalai station and low positive correlation with monthly precipitation of Qumalai station. The results can provide support for water resources management and ecological environment protection in the source region of Changjiang River.

Key words: the source region of Changjiang River, MODIS snow product, area of snow-ice coverage, air temperature, precipitation, runoff

中图分类号:

TV211.13

骆腾飞,谭德宝,文雄飞,赵登忠. 基于MODIS的长江源区雪冰遥感监测及其变化规律分析[J]. 长江科学院院报, 2017, 34(3): 143-147.

LUO Teng-fei, TAN De-bao,WEN Xiong-fei, ZHAO Deng-zhong. Remotely-sensed Monitoring of Snow-ice in the Source Region of Changjiang River Based on MODIS and Analysis of Its Change Rule[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2017, 34(3): 143-147.

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基于MODIS的长江源区雪冰遥感监测及其变化规律分析

Remotely-sensed Monitoring of Snow-ice in the Source Region of Changjiang River Based on MODIS and Analysis of Its Change Rule

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