Table 2 Synthetic test parameters and the correlation peak values
From: Experiment to distinguish two fumaroles consistently emanating infrasound at Kirishima Iwo-Yama
ISC amplitude \(\left( {A_1 } \right)\) | IWC amplitude \(\left( {A_2 } \right)\) | Noise amplitude in SI microphone \(\left( {A_{{\text{noise}}}^b } \right)\) | Peak value of array CC | Peak value of SI-array CC in + 0.8 s | Peak value of SI-array CC in − 0.8 s | |
|---|---|---|---|---|---|---|
Observation | – | – | – | 0.90 | 0.13 | 0.01 |
Test 1 | 0 | 0 | 0 | 0.12 | 0.02 | 0.03 |
Test 2 | 8 | 0 | 0 | 0.30 | 0.13 | 0.01 |
Test 3 | 25 | 0 | 0 | 0.90 | 0.50 | 0.005 |
Test 4 | 25 | 0 | 0.4 | 0.90 | 0.13 | None |
Test 5 | 25 | 2 | 0.4 | 0.90 | 0.13 | 0.01 |