摘要
近年来,频繁发生的海洋赤潮灾害给我国沿海经济带来了巨大损失。在对海洋赤潮的监视监测中,航空遥感是重要的监测平台,推帚式成像光谱仪(PHI)是获取高分辨率高光谱图像的重要手段。2001年7月至8月,中国海监飞机对辽东湾海域频繁发生的大面积赤潮进行了航空遥感监测,首次获取了海上高光谱数据。本文以获取的高光谱数据为研究对象,通过合成假彩色图像、提取异常区域的反射率曲线以及构造相关分析函数等方法,初步探讨了利用高光谱数据进行赤潮水体检测和赤潮种类识别的方法。
In recent years, repeated red tides have caused great damage to the coastal areas of China. As a much more important manner for red tide monitoring than any other remote sensing method, Pushbroom Hyperspectral Imager (PHI) can obtain abundant high resolution and continuous hyperspectral data. In this paper, through the analysis of the hyperspectral data acquired above the North China Sea by airplane from June to August of 2001, the methods for detecting and identifying red tide water are discussed on the basis of creating the fault color image, extracting the reflectance curve of the abnormal district and constructing the correlative function.
出处
《国土资源遥感》
CSCD
2003年第1期8-12,共5页
Remote Sensing for Land & Resources
基金
国家863计划研究课题"赤潮航空高光谱遥感监测技术研究"(863-818-09-10)。
关键词
成像高光谱数据
反射率曲线
赤潮检测
生物种类
航空遥感
Hyperspectral data
Reflectance curve
Red tide detection
Classification and identification
