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基于MODIS影像的夜间云检测算法研究
A STUDY OF NIGHT CLOUD DETECTION BASED ON MODIS IMAGE
【摘要】 在以往云检测算法的基础上,利用MOD IS传感器高光谱和高时间分辨率的特点,建立一套针对MOD IS夜间影像的,以单、多时相组合方法为基础的夜间云检测算法。通过对我国南北地震构造带(南北带)影像进行云检测试验证实,该算法对MOD IS夜间影像上的各种云类具有较好的检测效果。
【Abstract】 Based on traditional cloud detection methods,the authors developed a new algorithm for detecting night cloud according to characteristics of MODIS sensors which have high spectral resolution and time resolution.The algorithm includes the single-scene cloud detection method and the combined multi-scene cloud detection method.The test of night cloud detection on the N-S seismotectonic zone in China shows that this algorithm is effective in detecting night cloud on the MODIS image,and thus it can provide a basis for the effective application of night MODIS image.
【关键词】 夜间云检测;
热红外;
MODIS;
南北地震构造带;
【Key words】 Night cloud detection; Thermal infrared; MODIS; N-S seismotectonic zone in China;
【Key words】 Night cloud detection; Thermal infrared; MODIS; N-S seismotectonic zone in China;
【基金】 国家自然基金项目(40572125);科技部科研院所社会公益研究专项资金(2004DIB3J129)共同资助
- 【文献出处】 国土资源遥感 ,Remote Sensing for Land & Resources , 编辑部邮箱 ,2008年01期
- 【分类号】TP751
- 【被引频次】13
- 【下载频次】409