基于Landsat影像的鄱阳湖面积监测及其与水位关系研究

赵辉, 陈振, 冯超帆, 张通, 赵学晶, 张兆旭

Monitoring of the area of Poyang Lake based on Landsat images and its relationship with the water level

ZHAO Hui, CHEN Zhen, FENG Chaofan, ZHANG Tong, ZHAO Xuejing, ZHANG Zhaoxu

表8 棠荫站遥感提取面积、分段模型拟合面积、二次多项式拟合面积之间的比较

Tab.8 Comparison betwen the area axtracted by remote sensing、the area fitted by piecewise models and the area fitted by quadratic polynomial

序号 影像时相 棠荫站 水位值/m 提取面积 /km2 分段模型 拟合值/km2 误差/% 二次多项式 拟合值/km2 误差/% 1 20090316 13.99 2 044.54 1996.90 -2.33 2 046.72 0.11 2 20090604 15.40 2 460.28 2 519.02 2.39 2 481.45 0.86 3 20091103 11.27 1 004.53 989.68 -1.48 940.35 -6.39 4 20100319 14.55 2 284.06 2 204.27 -3.49 2 230.72 -2.34 5 20101208 11.34 1 036.86 1 015.60 -2.05 973.24 -6.14 6 20110728 14.41 2 242.89 2 152.42 -4.03 2 186.12 -2.53 7 20120620 17.71 3 005.89 3 011.61 0.19 2 988.85 -0.57 8 20120807 19.01 3 061.28 3 085.00 0.77 3 162.55 3.31 9 20170210 11.24 962.28 978.57 1.69 926.18 -3.75 10 20180205 11.88 1 205.28 1 215.56 0.85 1 219.15 1.15