Pre-registered Protocol for Detecting Infrasonic Precursors of Saharan Haboobs and Their Putative Human Vestibular Perception
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2026
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| _version_ | 1866901183342313472 |
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| author | Selkh, Chouaib |
| author_facet | Selkh, Chouaib |
| contents | <p>Haboob dust fronts are known to generate low-frequency pressure fluctuations and infrasound via turbulent outflow, lightning, and electrostatic processes. Published observations suggest that such signals may precede the visible arrival of a dust front by several hours through fast-mode atmospheric propagation. Separately, the human saccule is known to exhibit residual acoustic and vibrotactile sensitivity at low frequencies, raising the question of whether exceptional individuals might perceive such precursory signals.</p> <p>This document pre-registers an observational protocol to test two linked hypotheses at a Saharan site (Adrar, Algeria) during the 2027 dust season: (H1) that haboob events produce a detectable 0.5–10 Hz infrasonic signature 2–6 hours before the visible dust front arrives at the observer, and (H2) that a subjective sensory log, kept prospectively and cryptographically time-stamped before access to physical data, contains non-random co-variation with H1 detections.</p> <p>The protocol specifies instrumentation (a low-cost differential microbarometer as primary sensor, with an ultrasonic-capable microphone as secondary), data sources (ERA5 hourly pressure, MODIS AOD, IMS infrasound station IS48), a blinded sensory journal procedure, and a pre-specified analysis pipeline (cross-correlation, Lomb–Scargle periodogram, wavelet coherence, EMD–Hilbert spectral decomposition, Pettitt change-point test) with Benjamini–Hochberg multiple-testing correction. Falsification criteria are stated explicitly. The study is self-experimental (n = 1) for H2 and is conducted in accordance with the ethical principles of the Declaration of Helsinki.</p> <p>Keywords: haboob, infrasound, Saharan dust, atmospheric precursors, pre-registration, ERA5, MODIS AOD, IMS IS48, wavelet coherence, EMD-Hilbert, saccule, vestibular perception, Adrar, Algeria.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19709404 |
| institution | Zenodo |
| language | eng |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Pre-registered Protocol for Detecting Infrasonic Precursors of Saharan Haboobs and Their Putative Human Vestibular Perception Selkh, Chouaib <p>Haboob dust fronts are known to generate low-frequency pressure fluctuations and infrasound via turbulent outflow, lightning, and electrostatic processes. Published observations suggest that such signals may precede the visible arrival of a dust front by several hours through fast-mode atmospheric propagation. Separately, the human saccule is known to exhibit residual acoustic and vibrotactile sensitivity at low frequencies, raising the question of whether exceptional individuals might perceive such precursory signals.</p> <p>This document pre-registers an observational protocol to test two linked hypotheses at a Saharan site (Adrar, Algeria) during the 2027 dust season: (H1) that haboob events produce a detectable 0.5–10 Hz infrasonic signature 2–6 hours before the visible dust front arrives at the observer, and (H2) that a subjective sensory log, kept prospectively and cryptographically time-stamped before access to physical data, contains non-random co-variation with H1 detections.</p> <p>The protocol specifies instrumentation (a low-cost differential microbarometer as primary sensor, with an ultrasonic-capable microphone as secondary), data sources (ERA5 hourly pressure, MODIS AOD, IMS infrasound station IS48), a blinded sensory journal procedure, and a pre-specified analysis pipeline (cross-correlation, Lomb–Scargle periodogram, wavelet coherence, EMD–Hilbert spectral decomposition, Pettitt change-point test) with Benjamini–Hochberg multiple-testing correction. Falsification criteria are stated explicitly. The study is self-experimental (n = 1) for H2 and is conducted in accordance with the ethical principles of the Declaration of Helsinki.</p> <p>Keywords: haboob, infrasound, Saharan dust, atmospheric precursors, pre-registration, ERA5, MODIS AOD, IMS IS48, wavelet coherence, EMD-Hilbert, saccule, vestibular perception, Adrar, Algeria.</p> |
| title | Pre-registered Protocol for Detecting Infrasonic Precursors of Saharan Haboobs and Their Putative Human Vestibular Perception |
| url | https://doi.org/10.5281/zenodo.19709404 |