基于NoSREx实验的积雪演化及微波辐射分析研究

周静恬, 邱玉宝, 黄琳, LEMMETYINEN Juha, 石利娟, 李青寰, 施建成

Analysis of the evolution of snow cover and microwave irradiation based on Nordic Snow Radar Experiment

Jingtian ZHOU, Yubao QIU, Lin HUANG, Juha LEMMETYINEN, Lijuan SHI, Qinghuan LI, Jiancheng SHI

表4 不同积雪期模拟和观测亮度温度的均方根误差

Table 4 Root mean square errors of simulated and observed brightness temperatures in different snow period

频率/GHz 积雪期观测条件 积累期 稳定期 消融期 10.65 水平极化ΔTb/% 入射角 30° 30.64 52.59 31.13 40° 25.19 29.01 14.40 50° 13.20 13.82 12.30 60° 10.35 10.93 18.19 垂直极化ΔTb/% 入射角 30° 12.97 8.27 6.75 40° 9.38 11.48 6.74 50° 4.47 2.49 5.87 60° 26.20 3.41 6.52 18.7 水平极化ΔTb/% 入射角 30° 37.60 30.66 25.66 40° 21.48 8.62 11.71 50° 21.38 12.89 9.75 60° 31.32 30.37 12.36 垂直极化ΔTb/% 入射角 30° 14.47 10.11 3.59 40° 10.83 7.26 3.80 50° 8.44 6.41 4.15 60° 8.26 5.32 7.41 37 水平极化ΔTb/% 入射角 30° 15.41 12.53 26.91 40° 24.91 22.34 27.53 50° 30.16 31.05 23.03 60° 35.80 36.74 33.49 垂直极化ΔTb/% 入射角 30° 19.54 13.34 24.57 40° 22.17 13.93 29.46 50° 21.68 19.43 25.56 60° 23.94 14.31 37.85 90 水平极化ΔTb/% 入射角 30° 22.63 43.74 42.70 40° 23.90 42.20 57.13 50° 26.47 40.16 48.10 60° 27.01 17.98 45.98 垂直极化ΔTb/% 入射角 30° 25.74 48.54 43.63 40° 28.01 50.46 58.94 50° 29.79 49.45 50.64 60° 28.57 32.24 49.85