基于MODIS卫星数据的平流雾检测研究

¹武汉大学遥感信息工程学院,武汉市珞喻路129号,430079;²武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号,430079;武汉大学遥感信息工程学院,武汉市珞喻路129号,430079;³武汉中心气象台,武汉市东湖东路,430074

基金项目: 国家973计划资助项目(2003CB415205)

详细信息

Fog Detection Based on EOS MODIS Data

¹School of Remote Sensing and Information Engineering, Wuhan University, 129 Luoyu Road, Wuhan 430079, China²State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road, Wuhan 430079, China³ Wuhan Centre Weather Service, 3 East Donghu Road, Wuhan 430074, China

Funds: 国家973计划资助项目(2003CB415205)

摘要: 利用MODIS卫星数据,对雾与目标物(水、云、雪、地物)分别进行采样,得到光谱曲线并进行光谱分析,提出了有利于白天和夜间平流雾检测的波段,利用该波段选择结果,采用阈值法对平流雾进行检测并得到地面数据验证。结果表明,MODIS数据在雾检测方面具有很大的潜力。
- 平流雾 /
- MODIS /
- 光谱分析 /
- 光谱曲线 /
- 阈值
Abstract: Based on spectral profiles sampling from EOS MODIS data, the spectral characteristics of water, cloud, snow, surface features and fog are analyzed; Channels suitable for fog detection are discovered. On the basis of this, the advection fog, which occurred at 13:21 on Jan.5, 2004 and at 01:27 on Jan.6, 2004, in Liaoning Province and Liaodong Gulf, is detected. Validated from ground truth data, the result shows that MODIS data has great potential in fog detection.
- advection fog /
- MODIS /
- spectral analytic /
- spectral profile /
- threshold