半旬ごとの値
 |  |
 |  |
 |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |  |
留萌（留萌地方) 1986年（半旬ごとの値） 詳細（日照・雪・その他）
| 月 | 半旬 | 日～日 | 日照時間(h) | 全天日射量 (MJ/㎡) | 雪(cm) | 雲量 | 大気現象 | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 合計 | 日照率 | 各階級の日数 | 降雪 | 各階級の日数（降雪） | 最深積雪 | 各階級の日数（最深積雪） | 平均 | 各階級の日数 | 雪日数 | 霧日数 | 雷日数 | ||||||||||||||||||||
| 不照 | 日照率 ≧40% | 平均 | 合計 | 日合計の最大 | ≧3cm | ≧5cm | ≧10cm | ≧20cm | ≧50cm | ≧100cm | 値 | 日 | ≧0cm | ≧1cm | ≧5cm | ≧10cm | ≧20cm | ≧50cm | ≧100cm | ＜1.5 | ≧8.5 | ||||||||||
| 値 | 日 | ||||||||||||||||||||||||||||||
| 第1半旬 | 1～ 5 | 4.1 | 9 | 1 | 0 | 3.2 | 4 | 3 | 01 | 1 | 0 | 0 | 0 | 0 | 0 | 54 | 01 | 5 | 5 | 5 | 5 | 5 | 1 | 0 | 9.7 | 0 | 5 | 5 | 0 | 0 | |
| 第2半旬 | 6～10 | 0.1 | 0 | 4 | 0 | 2.1 | 17 | 9 | 08 | 2 | 1 | 0 | 0 | 0 | 0 | 45 | 08 | 5 | 5 | 5 | 5 | 5 | 0 | 0 | 9.3 | 0 | 4 | 5 | 0 | 0 | |
| 第3半旬 | 11～15 | 5.2 | 11 | 3 | 1 | 3.4 | 63 | 36 | 12 | 4 | 3 | 2 | 1 | 0 | 0 | 86 | 15 | 5 | 5 | 5 | 5 | 5 | 4 | 0 | 8.7 | 0 | 4 | 5 | 0 | 0 | |
| 第4半旬 | 16～20 | 13.3 | 29 | 2 | 3 | 4.9 | 37 | 23 | 18 | 2 | 2 | 2 | 1 | 0 | 0 | 89 | 18 | 5 | 5 | 5 | 5 | 5 | 5 | 0 | 8.4 | 0 | 1 | 5 | 0 | 0 | |
| 第5半旬 | 21～25 | 15.8 | 33 | 1 | 2 | 5.0 | 59 | 31 | 22 | 4 | 4 | 2 | 1 | 0 | 0 | 117 | 23 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 7.6 | 0 | 2 | 5 | 0 | 0 | |
| 第6半旬 | 26～31 | 9.1 | 16 | 1 | 1 | 4.8 | 24 | 9 | 29* | 3 | 3 | 0 | 0 | 0 | 0 | 105 | 26 | 6 | 6 | 6 | 6 | 6 | 6 | 3 | 8.7 | 0 | 4 | 5 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 1.3 | 3 | 1 | 0 | 3.5 | 5 | 4 | 04 | 1 | 0 | 0 | 0 | 0 | 0 | 92 | 01 | 5 | 5 | 5 | 5 | 5 | 5 | 0 | 9.0 | 0 | 3 | 5 | 0 | 0 | |
| 第2半旬 | 6～10 | 11.8 | 23 | 0 | 1 | 6.3 | 58 | 35 | 09 | 4 | 3 | 2 | 1 | 0 | 0 | 114 | 10 | 5 | 5 | 5 | 5 | 5 | 5 | 2 | 8.2 | 0 | 2 | 5 | 0 | 0 | |
| 第3半旬 | 11～15 | 20.0 | 39 | 0 | 2 | 7.3 | 21 | 8 | 13* | 3 | 3 | 0 | 0 | 0 | 0 | 115 | 13* | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 7.0 | 0 | 3 | 4 | 0 | 0 | |
| 第4半旬 | 16～20 | 29.8 | 57 | 0 | 3 | 10.0 | 22 | 11 | 20 | 2 | 2 | 2 | 0 | 0 | 0 | 108 | 20 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 6.3 | 0 | 2 | 4 | 0 | 0 | |
| 第5半旬 | 21～25 | 15.9 | 29 | 0 | 2 | 8.8 | 25 | 11 | 25 | 3 | 2 | 1 | 0 | 0 | 0 | 115 | 22 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 9.0 | 0 | 3 | 5 | 0 | 0 | |
| 第6半旬 | 26～28 | 8.0 | 24 | 1 | 1 | 10.5 | 0 | 0 | 27* | 0 | 0 | 0 | 0 | 0 | 0 | 111 | 26 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 9.0 | 0 | 2 | 2 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 32.8 | 59 | 0 | 4 | 12.3 | 0 | 0 | 03* | 0 | 0 | 0 | 0 | 0 | 0 | 100 | 01 | 5 | 5 | 5 | 5 | 5 | 5 | 1 | 5.7 | 0 | 1 | 3 | 0 | 0 | |
| 第2半旬 | 6～10 | 22.2 | 39 | 1 | 2 | 8.9 | 2 | 1 | 09* | 0 | 0 | 0 | 0 | 0 | 0 | 93 | 07* | 5 | 5 | 5 | 5 | 5 | 5 | 0 | 6.8 | 1 | 2 | 4 | 0 | 0 | |
| 第3半旬 | 11～15 | 27.3 | 47 | 0 | 2 | 13.1 | 6 | 4 | 13 | 1 | 0 | 0 | 0 | 0 | 0 | 92 | 11 | 5 | 5 | 5 | 5 | 5 | 5 | 0 | 6.4 | 1 | 2 | 4 | 0 | 0 | |
| 第4半旬 | 16～20 | 11.8 | 20 | 2 | 2 | 9.0 | 9 | 7 | 20 | 1 | 1 | 0 | 0 | 0 | 0 | 88 | 20* | 5 | 5 | 5 | 5 | 5 | 5 | 0 | 8.4 | 0 | 3 | 5 | 0 | 0 | |
| 第5半旬 | 21～25 | 36.3 | 60 | 1 | 4 | 16.2 | 9 | 9 | 21 | 1 | 1 | 0 | 0 | 0 | 0 | 95 | 21 | 5 | 5 | 5 | 5 | 5 | 5 | 0 | 6.8 | 0 | 2 | 3 | 0 | 0 | |
| 第6半旬 | 26～31 | 32.0 | 43 | 0 | 2 | 14.1 | 2 | 1 | 31* | 0 | 0 | 0 | 0 | 0 | 0 | 71 | 26 | 6 | 6 | 6 | 6 | 6 | 6 | 0 | 7.7 | 0 | 3 | 6 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 23.5 | 37 | 1 | 3 | 13.2 | 0 | 0 | 02* | 0 | 0 | 0 | 0 | 0 | 0 | 56 | 01 | 5 | 5 | 5 | 5 | 5 | 2 | 0 | 8.4 | 0 | 3 | 2 | 1 | 0 | |
| 第2半旬 | 6～10 | 23.1 | 36 | 0 | 2 | 13.7 | 3 | 3 | 06 | 1 | 0 | 0 | 0 | 0 | 0 | 32 | 06 | 5 | 5 | 5 | 4 | 3 | 0 | 0 | 7.9 | 0 | 4 | 2 | 0 | 0 | |
| 第3半旬 | 11～15 | 37.0 | 56 | 0 | 3 | 17.1 | 0 | 0 | 12* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4.2 | 2 | 1 | 2 | 0 | 0 | |
| 第4半旬 | 16～20 | 31.8 | 47 | 0 | 3 | 16.3 | 0 | 0 | 17* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17* | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 5.3 | 1 | 1 | 2 | 0 | 0 | |
| 第5半旬 | 21～25 | 4.7 | 7 | 1 | 0 | 8.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.8 | 0 | 3 | 0 | 0 | 0 | |||
| 第6半旬 | 26～30 | 30.1 | 43 | 1 | 2 | 16.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 1 | 3 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 48.7 | 69 | 0 | 4 | 21.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.0 | 3 | 2 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 37.1 | 52 | 1 | 3 | 18.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.1 | 1 | 1 | 0 | 1 | 0 | |||
| 第3半旬 | 11～15 | 24.0 | 33 | 1 | 2 | 16.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 0 | 2 | 0 | 0 | 0 | |||
| 第4半旬 | 16～20 | 11.1 | 15 | 2 | 1 | 11.0 ) | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.1 | 0 | 4 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 3.6 | 5 | 4 | 0 | 8.3 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.6 | 0 | 5 | 0 | 0 | 0 | ||
| 第6半旬 | 26～31 | 32.6 | 36 | 0 | 2 | 18.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 0 | 2 | 0 | 1 | 0 | |||
| 第1半旬 | 1～ 5 | 27.6 | 36 | 0 | 1 | 17.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.6 | 1 | 1 | 0 | 2 | 0 | |||
| 第2半旬 | 6～10 | 44.1 | 58 | 1 | 3 | 20.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.5 | 2 | 2 | 0 | 0 | 0 | |||
| 第3半旬 | 11～15 | 59.0 | 77 | 0 | 5 | 26.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.8 | 1 | 0 | 0 | 0 | 0 | |||
| 第4半旬 | 16～20 | 23.1 | 30 | 0 | 2 | 17.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.3 | 0 | 2 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 34.1 | 44 | 0 | 4 | 21.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 0 | 1 | 0 | 0 | 0 | |||
| 第6半旬 | 26～30 | 51.2 | 66 | 0 | 5 | 25.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.4 | 2 | 0 | 0 | 2 | 0 | |||
| 第1半旬 | 1～ 5 | 9.3 | 12 | 3 | 0 | 12.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.4 | 0 | 4 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 23.4 | 31 | 0 | 2 | 18.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 0 | 2 | 0 | 0 | 0 | |||
| 第3半旬 | 11～15 | 1.9 | 3 | 2 | 0 | 10.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.9 | 0 | 5 | 0 | 0 | 0 | |||
| 第4半旬 | 16～20 | 27.2 | 36 | 1 | 3 | 16.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 0 | 3 | 0 | 1 | 0 | |||
| 第5半旬 | 21～25 | 26.4 | 35 | 0 | 2 | 18.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.8 | 0 | 3 | 0 | 0 | 0 | |||
| 第6半旬 | 26～31 | 54.7 | 62 | 0 | 5 | 22.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.9 | 0 | 3 | 0 | 1 | 0 | |||
| 第1半旬 | 1～ 5 | 26.8 | 37 | 1 | 2 | 16.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.3 | 1 | 1 | 0 | 2 | 0 | |||
| 第2半旬 | 6～10 | 18.7 | 26 | 1 | 1 | 16.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 0 | 2 | 0 | 0 | 0 | |||
| 第3半旬 | 11～15 | 24.2 | 34 | 0 | 3 | 14.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.6 | 0 | 1 | 0 | 0 | 2 | |||
| 第4半旬 | 16～20 | 34.1 | 49 | 1 | 4 | 17.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.6 | 0 | 3 | 0 | 3 | 0 | |||
| 第5半旬 | 21～25 | 34.7 | 51 | 0 | 3 | 17.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 0 | 2 | 0 | 1 | 0 | |||
| 第6半旬 | 26～31 | 27.3 | 34 | 0 | 2 | 14.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 0 | 3 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 27.5 | 42 | 0 | 3 | 14.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 0 | 3 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 27.3 | 42 | 0 | 2 | 14.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.3 | 0 | 2 | 0 | 1 | 2 | |||
| 第3半旬 | 11～15 | 52.7 | 83 | 0 | 5 | 19.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.2 | 2 | 0 | 0 | 0 | 1 | |||
| 第4半旬 | 16～20 | 23.6 | 38 | 0 | 2 | 11.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 0 | 2 | 0 | 0 | 1 | |||
| 第5半旬 | 21～25 | 14.7 | 24 | 0 | 1 | 9.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 0 | 3 | 0 | 0 | 1 | |||
| 第6半旬 | 26～30 | 35.9 | 60 | 0 | 3 | 14.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.5 | 0 | 0 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 52.2 | 90 | 0 | 5 | 16.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.4 | 3 | 0 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 24.6 | 43 | 0 | 2 | 10.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.5 | 1 | 1 | 0 | 0 | 1 | |||
| 第3半旬 | 11～15 | 33.5 | 60 | 0 | 4 | 11.6 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.3 | 0 | 1 | 0 | 0 | 1 | ||
| 第4半旬 | 16～20 | 13.0 | 24 | 0 | 1 | 7.3 | 0 | 0 | 18* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.2 | 0 | 4 | 2 | 0 | 1 | ||
| 第5半旬 | 21～25 | 8.1 | 15 | 2 | 1 | 4.7 | 10 | 10 | 23 | 1 | 1 | 1 | 0 | 0 | 0 | 12 | 23 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 8.3 | 0 | 3 | 3 | 1 | 1 | |
| 第6半旬 | 26～31 | 5.1 | 8 | 1 | 0 | 3.8 | 0 | 0 | 31* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.8 | 0 | 6 | 4 | 0 | 0 | ||
| 第1半旬 | 1～ 5 | 8.1 | 16 | 0 | 1 | 3.9 | 0 | 0 | 05* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 0 | 2 | 1 | 1 | 0 | ||
| 第2半旬 | 6～10 | 3.6 | 7 | 1 | 0 | 3.3 | 0 | 0 | 10* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 9.7 | 0 | 5 | 4 | 0 | 2 | |
| 第3半旬 | 11～15 | 9.7 | 20 | 2 | 2 | 4.0 | 0 | 0 | 15* | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 15 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 9.0 | 0 | 4 | 4 | 0 | 1 | |
| 第4半旬 | 16～20 | 0.2 | 0 | 4 | 0 | 2.1 | 18 | 9 | 18 | 3 | 2 | 0 | 0 | 0 | 0 | 17 | 18 | 5 | 5 | 5 | 5 | 0 | 0 | 0 | 10.0 | 0 | 5 | 5 | 0 | 0 | |
| 第5半旬 | 21～25 | 1.0 | 2 | 1 | 0 | 2.5 | 8 | 5 | 22 | 1 | 1 | 0 | 0 | 0 | 0 | 9 | 23* | 5 | 5 | 5 | 0 | 0 | 0 | 0 | 10.0 | 0 | 5 | 5 | 0 | 0 | |
| 第6半旬 | 26～30 | 3.3 | 7 | 1 | 0 | 3.0 | 15 | 8 | 26 | 3 | 1 | 0 | 0 | 0 | 0 | 13 | 28 | 5 | 5 | 5 | 5 | 0 | 0 | 0 | 9.9 | 0 | 5 | 5 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 3.4 | 8 | 1 | 0 | 2.8 | 16 | 13 | 04 | 2 | 1 | 1 | 0 | 0 | 0 | 22 | 04 | 5 | 5 | 5 | 5 | 1 | 0 | 0 | 9.1 | 0 | 3 | 4 | 0 | 0 | |
| 第2半旬 | 6～10 | 13.6 | 30 | 0 | 1 | 4.6 | 0 | 0 | 08* | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 06 | 5 | 5 | 5 | 3 | 0 | 0 | 0 | 8.1 | 0 | 4 | 3 | 0 | 0 | |
| 第3半旬 | 11～15 | 9.7 | 22 | 2 | 1 | 3.3 | 1 | 1 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 11 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 8.5 | 0 | 3 | 5 | 0 | 0 | |
| 第4半旬 | 16～20 | 3.5 | 8 | 1 | 0 | 3.1 | 22 | 7 | 19 | 4 | 3 | 0 | 0 | 0 | 0 | 18 | 20 | 5 | 5 | 5 | 4 | 0 | 0 | 0 | 9.8 | 0 | 5 | 5 | 0 | 0 | |
| 第5半旬 | 21～25 | 7.4 | 17 | 0 | 1 | 3.3 | 0 | 0 | 24* | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 21 | 5 | 5 | 4 | 1 | 0 | 0 | 0 | 8.8 | 0 | 4 | 5 | 0 | 0 | |
| 第6半旬 | 26～31 | 7.7 | 14 | 2 | 1 | 3.1 ) | 29 | 20 | 31 | 2 | 1 | 1 | 1 | 0 | 0 | 28 | 31 | 6 | 6 | 6 | 5 | 1 | 0 | 0 | 9.1 | 0 | 5 | 6 | 0 | 0 | |
- 値欄の記号の説明
- 赤線は、観測場所を移転した場合、観測装置を変更した場合または観測の時間間隔を変更した場合に、その前後のデータが均質でないことを示します。