基于多源遥感及气象数据的河流非光学活性水质参数反演模型研究

兑紫璇,王卿,王敏,张璟,顾倩荣

Research on the Retrieval Model of Non-optically Active Water Quality Parameters of Rivers based on Multi-source Remote Sensing and Meteorological Data

Zixuan DUI,Qing WANG,Min WANG,Jing ZHANG,Qianrong GU

表2 与多源遥感和气象数据时空匹配后筛选出的地面水质监测数据样本集

Table 2 The ground water quality monitoring sample data set filtered by spatial and temporal matching with the multi-source remote sensing and meteorological data

状态	水质参数	异常值处理比例	样本数	平均值/(mg $?$ L^-1)	标准偏差	最小值/(mg $?$ L^-1)	最大值/(mg $?$ L^-1)
异常值剔除前	DO	-	270	8.78	2.43	3.76	18.07
	COD	-	270	2.29	2.34	0.10	15.60
	NH₃-N	-	270	0.93	1.42	0.00	10.00
异常值剔除后	DO	0.08	249	8.29	1.54	4.70	12.10
	COD	0.10	243	1.68	1.33	0.10	5.25
	NH₃-N	0.20	216	0.55	0.65	0.00	2.80