Correlation analysis between earth-air flow and atmospheric pressure variations in Cave 61 of the Mogao Grottoes based on wavelet analysis
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| Format: | Recurso digital |
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2025
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| _version_ | 1866901530621247488 |
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| author | li, fei |
| author_facet | li, fei |
| contents | <p>The study collected 10-minute interval data on earth-air flow and atmospheric pressure at 17 monitoring points in Mogao Grotto 61 from July 2022 to December 2024. Key findings include:<br>Annual scale: Atmospheric pressure exhibits a dominant 18-month cycle with a secondary 10-month cycle, while earth-air flow shows a primary 28-month cycle and a secondary 18-month cycle.<br>Monthly scale: Pressure oscillates with 27-day and 10-day periods, matched by earth-air flow at 22-day and 9-day cycles.<br>Daily scale: Both parameters show a 21-hour periodicity, with earth-air flow peaks/troughs leading pressure by several hours.<br>Wavelet coherence analysis confirms a negative correlation between the two variables across time scales, with earth-air flow preceding pressure changes, validated by 95% confidence thresholds in energy spectral analysis.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_15485995 |
| institution | Zenodo |
| language | |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Correlation analysis between earth-air flow and atmospheric pressure variations in Cave 61 of the Mogao Grottoes based on wavelet analysis li, fei <p>The study collected 10-minute interval data on earth-air flow and atmospheric pressure at 17 monitoring points in Mogao Grotto 61 from July 2022 to December 2024. Key findings include:<br>Annual scale: Atmospheric pressure exhibits a dominant 18-month cycle with a secondary 10-month cycle, while earth-air flow shows a primary 28-month cycle and a secondary 18-month cycle.<br>Monthly scale: Pressure oscillates with 27-day and 10-day periods, matched by earth-air flow at 22-day and 9-day cycles.<br>Daily scale: Both parameters show a 21-hour periodicity, with earth-air flow peaks/troughs leading pressure by several hours.<br>Wavelet coherence analysis confirms a negative correlation between the two variables across time scales, with earth-air flow preceding pressure changes, validated by 95% confidence thresholds in energy spectral analysis.</p> |
| title | Correlation analysis between earth-air flow and atmospheric pressure variations in Cave 61 of the Mogao Grottoes based on wavelet analysis |
| url | https://doi.org/10.5281/zenodo.15485995 |