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利用ASTER影像反演松辽平原水体悬浮物浓度
引用本文:马驰,姜琦刚,李远华,陈凤臻,赵静.利用ASTER影像反演松辽平原水体悬浮物浓度[J].水资源保护,2009,25(2):72-74.
作者姓名:马驰  姜琦刚  李远华  陈凤臻  赵静
作者单位:1. 吉林大学地球探测科学与技术学院,吉林,长春,130026;沈阳农业大学高等职业技术学院,辽宁,沈阳,110122
2. 吉林大学地球探测科学与技术学院,吉林,长春,130026
3. 吉林大学地球探测科学与技术学院,吉林,长春,130026;赤峰学院,内蒙古,赤峰,024001
基金项目:中国地质调查局地质调查项目 
摘    要:对松辽平原的ASTER影像进行几何校正、辐射校正等预处理,并利用归一化水体指数(normalizeddifference water index)做掩模提取测区内水体,再将实测的水体悬浮物浓度和各波段反射率作相关性回归分析,探求水体中悬浮物的特征波段。实验表明,当水体中悬浮物含量增加时,ASTER遥感影像的1~4波段水体反射率明显增加,且第3波段水体的反射率与实测水体悬浮物浓度关系最密切。最后确定了利用ASTER影像第3波段与水体悬浮物浓度进行线形拟合的方法反演水体悬浮物浓度。实践证明,利用回归分析所建立的线性反演模型可以很好地反演测区内水体悬浮物浓度。

关 键 词:松辽平原  遥感  定量反演  ASTER  悬浮物
修稿时间:2009/4/1 0:00:00

Concentration inversion of suspended matter in water of Songliao Plain using ASTER images
MA Chi,JIANG Qi-gang,LI Yuan-hua,CHEN Feng-zhen,ZHAO Jing.Concentration inversion of suspended matter in water of Songliao Plain using ASTER images[J].Water Resources Protection,2009,25(2):72-74.
Authors:MA Chi  JIANG Qi-gang  LI Yuan-hua  CHEN Feng-zhen  ZHAO Jing
Abstract:After being processed with geometric correction and radiation correction,ASTER images of the Songliao Plain were made into masks using NDWI(normalized difference water index) in order to extract the water bodies in the survey area.The characteristic band of suspended matter in the water was identified through correlation regressive analysis of the field concentration of suspended matter and the reflectivity of each band.This experiment shows that the water reflectivity from the first to the fourth bands of ASTER remote sensing images increased with the concentration of suspended matter,and the reflectivity of the third band had the closest relationship with the concentration of suspended matter.Finally,an inversion calculation was conducted of the concentration of suspended matter by means of linear fitting of the third band of the ASTER images and the concentration of suspended matter.The results show that the linear reversion model based on the regression analysis is feasible in the concentration inversion of the suspended matter in the survey area.
Keywords:ASTER
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