| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| secular variation | 1.72 | 0.6 | 6065 | 23 | 17 |
| secular | 1.39 | 0.3 | 2036 | 87 | 7 |
| variation | 1.59 | 0.6 | 9048 | 92 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| secular variation | 2 | 0.5 | 1313 | 78 |
| secular variation magnetic field | 1.16 | 0.6 | 9915 | 23 |
| secular variation meaning | 1.67 | 0.8 | 1821 | 11 |
| secular variation in surveying | 0.17 | 0.9 | 1151 | 21 |
| secular variation epidemic | 1.67 | 0.2 | 8184 | 20 |
| secular variation of a disease | 1.95 | 0.1 | 5304 | 3 |
| secular variation in seawater chemistry | 1.38 | 0.7 | 2189 | 73 |
| secular variation in seawater redox state | 0.31 | 0.9 | 7712 | 62 |
| secular variation of earth's magnetic field | 0.78 | 0.3 | 2978 | 34 |
| geomagnetic secular variation | 0.35 | 0.6 | 8367 | 20 |
| what is secular variation | 0.86 | 0.9 | 690 | 42 |
| magnetic secular variation | 0.08 | 0.8 | 8333 | 64 |
| define secular trend and seasonal variations | 0.15 | 0.2 | 1492 | 7 |
