评估天数 | 评估格点总数* | 非奇异海冰格点占评估格点总数的比例(%) | |||||
NSIDC NASA Team | NSIDC Bootstrap | OSI SAF | NSIDC NASA Team | NSIDC Bootstrap | OSI SAF | ||
全年 | 5704 | 115,993,138 | 114,664,214 | 115,053,824 | 95.15 | 96.14 | 94.07 |
1月 | 464 | 4,345,775 | 4,111,346 | 4,452,405 | 85.51 | 88.51 | 83.90 |
2月 | 420 | 2,444,053 | 2,306,343 | 2,506,133 | 84.23 | 87.31 | 83.25 |
3月 | 465 | 3,367,207 | 3,297,162 | 3,464,974 | 89.82 | 92.16 | 88.89 |
4月 | 448 | 5,260,589 | 5,194,069 | 5,352,356 | 94.64 | 95.93 | 93.15 |
5月 | 460 | 7,954,742 | 7,879,128 | 7,983,441 | 95.93 | 96.84 | 94.71 |
6月 | 473 | 10,769,092 | 10,681,505 | 10,682,469 | 96.45 | 97.24 | 95.55 |
7月 | 520 | 14,147,556 | 14,041,567 | 13,913,697 | 96.74 | 97.47 | 96.02 |
8月 | 519 | 15,665,438 | 15,568,331 | 15,339,750 | 96.91 | 97.54 | 96.17 |
9月 | 498 | 15,673,764 | 15,595,515 | 15,324,928 | 97.07 | 97.61 | 96.24 |
10月 | 494 | 15,251,247 | 15,176,503 | 14,924,407 | 96.90 | 97.44 | 96.08 |
11月 | 454 | 12,208,553 | 12,129,330 | 12,098,581 | 95.33 | 95.98 | 94.06 |
12月 | 489 | 8,905,122 | 8,683,415 | 9,010,683 | 90.68 | 92.34 | 88.74 |