| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| ionosonde working principle | 0.63 | 0.2 | 8202 | 69 | 27 |
| ionosonde | 0.63 | 0.7 | 2399 | 56 | 9 |
| working | 1.05 | 0.7 | 2529 | 52 | 7 |
| principle | 1.16 | 0.6 | 9886 | 6 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ionosonde working principle | 1.08 | 0.7 | 6026 | 74 |
