摘要
蓝藻水华是富营养化湖泊共同面临的问题。遥感技术为快速、大范围水华监测提供了可能,选取遥感数据应首先明确不同卫星的水华监测能力。以洱海为例,对比分析HJ-1B和Landsat卫星在内陆中小湖泊水华监测的时间和空间监测能力,评价两者在水华监测中的适用性及优势。结果表明:两者均能有效识别水华,提取水华分布细节信息,相比MODIS更适合用于中小湖泊水华监测;进一步分析表明,综合两者数据监测蓝藻水华,可以更加客观统计水华时间特征,描述水华空间分布发展规律,对于其它中小湖泊利用遥感手段辅助水华监测具有参考意义。
Cyanobacterial bloom is a common problem faced by eutrophic lakes. Remote sensing technology offers the possibility of monitoring blooms in large scale within a short time. First of all, it is necessary to determine the monitoring ability of different satellites when selecting remote sensing data. Taking Erhai Lake for example, the paper analyzed the temporal and spatial monitoring ability of HJ - 1 B and Landsat satellite in small inland lakes, and evaluated their applicability and advantages of monitoring. The results show that both can effectively identify and extract the detail information of bloom distribution, and are more suited for the bloom monitoring of small and medium - sized lakes than that by MODIS. Further a- nalysis reveals that combining both data of cyanobacterial bloom moniting can obtain more objective time characteristics and describe the development law of spatial distribution of bloom. The result can offer reference for bloom monitoring by means of remote sensing in other small and medium - sized lakes.
出处
《水资源与水工程学报》
2016年第4期38-43,共6页
Journal of Water Resources and Water Engineering
基金
国家水体污染控制与治理科技重大专项(2013ZX07105-005)
国家自然科学基金项目(41301366)
2015测绘地理信息公益性行业科研专项(201512026)
关键词
蓝藻水华
HJ-1B
LANDSAT
水华监测
监测能力评估
洱海
cyanobacterial blooms
HJ - 1 B
Landsat
cyanobacterial bloms monitoring
evaluation monitoring ability
Erhai Lake
作者简介
张娇（1991-），女，河北邢台人，硕士研究生，研究方向为水环境遥感。
通讯作者：陈莉琼（1983-），女，湖北武汉人，博士，实验师，研究方向：水色遥感动态监测。
