| GPS及AVHRR资料在浅海潮间带测量中的应用 |
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| 引用本文： | 范德新,杨亚新,尹成华,汤建国.GPS及AVHRR资料在浅海潮间带测量中的应用[J].气象,2001,27(3):19-22. |
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| 作者姓名： | 范德新 杨亚新 尹成华 汤建国 |
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| 作者单位： | 1. 江苏省南通市气象局,
2. 江苏省南通航运职业技术学院 |
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| 摘 要： | 通过利用GPS及渔探器实测，并进行潮位订正，获得南通浅海海域大量测点的高程资料，通过对多时相各通道NOAA卫星照片进行筛选，挑选能反映浅海地貌的通道资料，从中读取各测点相对应的灰度值，在此基础上利用分级线性回归，建立不同高程范围内的高程，灰度线性回归方程，确定不同高程的灰度阈值，从而测量出南通市浅海海域不同高程以上的潮间带面积，分布。
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| 关 键 词： | GPS AVHRR资料 分级线性回归 潮间带 渔探器 测量 NOAA卫星 |
Application of the GPS and AVHRR Data to the Determination of Tidal Zone in Shallow Water |
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| Fan Dexin,Yang Yaxin,YIN Chenghua,Tang Jianguo.Application of the GPS and AVHRR Data to the Determination of Tidal Zone in Shallow Water[J].Meteorological Monthly,2001,27(3):19-22. |
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| Authors: | Fan Dexin Yang Yaxin YIN Chenghua Tang Jianguo |
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| Affiliation: | Fan Dexin 1 Yang Yaxin 2 Yin Chenghua 1 Tang Jianguo 1 |
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| Abstract: | A lot of data of elevation in different places of the shallow water of Nantong were obtained by fish exploring machine and GPS determining and tide correcting.An image which reflects landforms of Nantong was obtained by selecting from the many NOAA images on different channels and in different phases.Based on the image,grey scales corresponding to different places were obtained.By using classifying liner regression technique,liner regression equations were established between the elevation and grey scale,and the threshold values of grey scales of the different elevations were determined.According to the threshold values,the areas of the tidal zone above different elevations of the shallow water of Nantong were estimated. |
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| Keywords: | GPS AVHRR classifying liner regression tidal zone |
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