基于Landsat-8 OLI的青藏高原IMS 4 km雪冰产品精度评价
|
|
除多,郑照军,拉巴卓玛,次丹玉珍
|
Accuracy Assessment of IMS 4 km Snow and Ice Products on the Tibetan Plateau based on Landsat⁃8 OLI Images
|
|
Duo Chu,Zhaojun Zheng,Zhuoma Laba,Yuzhen Cidan
|
|
表2 基于Landsat-8 OLI的IMS 4 km雪冰产品精度评价结果
|
Table 2 Results of accuracy assessment of IMS 4 km products based on Landsat-8 OLI images
|
|
图幅 序号 | 成像 日期 | 轨道 列号 | 轨道 行号 | 积雪像元所 占比例/% | 漏测率 /% | 多测率 /% | 无雪分类 精度/% | 用户 精度/% | 制图 精度/% | 总体 精度/% | Kappa 系数 |
|---|
| 平均 | 44.4 | 11.7 | 45.4 | 84.9 | 62.3 | 88.3 | 76.0 | 0.394 2 | | L1 | 2014/3/20 | 147 | 36 | 72.7 | 5.9 | 56.6 | 73.6 | 81.6 | 94.1 | 80.3 | 0.430 9 | | L 2 | 2018/1/3 | 146 | 35 | 24.7 | 9.3 | 43.1 | 94.9 | 40.9 | 90.7 | 65.3 | 0.338 2 | | L 3 | 2014/3/29 | 146 | 37 | 47.1 | 15.7 | 37.1 | 81.8 | 66.9 | 84.3 | 73.0 | 0.465 6 | | L 4 | 2013/12/16 | 145 | 36 | 14.6 | 21.6 | 13.8 | 95.9 | 49.3 | 78.4 | 85.1 | 0.519 2 | | L 5 | 2015/4/10 | 145 | 39 | 45.7 | 4.4 | 7.7 | 96.2 | 91.3 | 95.6 | 93.8 | 0.876 3 | | L 6 | 2014/1/19 | 143 | 35 | 19.4 | 5.5 | 20.2 | 98.4 | 52.9 | 94.5 | 82.7 | 0.572 1 | | L 7 | 2014/1/28 | 142 | 37 | 30.3 | 21.8 | 42.2 | 85.9 | 44.6 | 78.2 | 64.0 | 0.297 0 | | L 8 | 2014/2/20 | 143 | 39 | 74.2 | 1.2 | 75.0 | 88.2 | 79.1 | 98.8 | 79.8 | 0.310 7 | | L 9 | 2015/1/24 | 141 | 40 | 57.2 | 7.6 | 49.9 | 83.1 | 71.2 | 92.4 | 74.3 | 0.447 0 | | L 10 | 2013/11/11 | 140 | 40 | 17.7 | 13.1 | 9.7 | 97.0 | 65.9 | 86.9 | 89.7 | 0.686 3 | | L 11 | 2019/2/13 | 140 | 37 | 15.6 | 31.1 | 30.0 | 92.4 | 29.7 | 68.9 | 69.8 | 0.252 7 | | L 12 | 2017/1/6 | 140 | 35 | 68.4 | 3.8 | 77.6 | 73.2 | 72.8 | 96.2 | 72.9 | 0.228 7 | | L 13 | 2017/1/1 | 137 | 34 | 16.0 | 10.8 | 21.6 | 97.5 | 43.9 | 89.2 | 80.1 | 0.476 9 | | L 14 | 2017/1/1 | 137 | 37 | 65.3 | 4.1 | 73.3 | 77.8 | 70.8 | 95.9 | 71.7 | 0.266 0 | | L 15 | 2014/12/18 | 138 | 38 | 95.1 | 2.3 | 78.8 | 31.8 | 96.0 | 97.7 | 93.9 | 0.223 9 | | L 16 | 2017/1/8 | 138 | 39 | 19.6 | 17.1 | 20.3 | 95.0 | 49.9 | 82.9 | 80.3 | 0.500 8 | | L 17 | 2014/3/16 | 135 | 40 | 23.4 | 27.8 | 16.0 | 90.8 | 58.0 | 72.2 | 81.3 | 0.517 9 | | L 18 | 2018/4/3 | 136 | 39 | 65.7 | 10.4 | 71.3 | 62.4 | 67.6 | 89.6 | 66.7 | 0.205 1 | | L 19 | 2015/1/21 | 136 | 38 | 69.4 | 5.9 | 67.7 | 70.6 | 75.9 | 94.1 | 75.2 | 0.311 2 | | L 20 | 2017/2/4 | 135 | 38 | 31.0 | 13.5 | 34.8 | 91.5 | 52.7 | 86.5 | 71.8 | 0.439 2 | | L 21 | 2018/1/8 | 133 | 38 | 27.0 | 46.5 | 23.1 | 81.7 | 46.2 | 53.5 | 70.6 | 0.290 0 | | L 22 | 2017/1/12 | 134 | 37 | 83.5 | 0.5 | 82.1 | 87.5 | 86.0 | 99.5 | 86.0 | 0.255 5 | | L 23 | 2017/1/19 | 135 | 36 | 45.7 | 1.6 | 82.9 | 92.8 | 50.0 | 98.4 | 54.3 | 0.144 0 | | L 24 | 2017/1/5 | 133 | 36 | 35.0 | 3.2 | 32.7 | 97.5 | 61.4 | 96.8 | 77.6 | 0.565 1 | | L 25 | 2018/2/11 | 131 | 38 | 45.5 | 6.9 | 68.3 | 84.7 | 53.2 | 93.1 | 59.6 | 0.233 8 |
|
|
|