NOAA IMS雪冰产品在青藏高原积雪监测中的适用性分析

除多,扎西顿珠,次丹玉珍

Analysis on applicability of NOAA IMS snow and ice products in snow cover monitoring over the Tibetan Plateau

Duo CHU,Dunzhu ZHAXI,Yuzhen CIDAN

表6 2015年9月至2019年5月青藏高原IMS 1 km和4 km产品平均积雪监测精度

Table 6 Average snow monitoring accuracy of IMS 1 km and 4 km products on the TP from September 2015 to May 2019

积雪季（年-月） 积雪日数/d 漏判率/% 误判率/% 积雪分类精度/% 无雪分类精度/% 总体精度/% 1 km 4 km 1 km 4 km 1 km 4 km 1 km 4 km 1 km 4 km 1 km 4 km 平均 50 63 48.9 44.8 12.1 17.2 45.5 44.6 91.2 92.3 83.3 80.4 2015-09/2016-05 36 49 58.4 54.5 9.6 14.6 44.0 45.3 91.9 93.6 85.2 83.2 2016-09/2017-05 43 59 52.2 45.1 10.6 16.6 47.5 46.5 93.0 94.2 85.1 81.4 2017-09/2018-05 56 66 37.0 36.0 15.7 19.8 36.8 35.8 95.2 95.8 83.4 80.5 2018-09/2019-05 65 78 47.9 43.7 12.6 17.9 53.6 50.9 84.7 85.6 79.6 76.4