The Hudson Bay region exhibits measurably lower gravitational acceleration due to glacial isostatic adjustment

the verdict

SUPPORTED

the evidence backs this

Recorded sources

3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that the Hudson Bay region exhibits measurably lower gravitational acceleration due to glacial isostatic adjustment?

Yes. Multiple geophysical studies confirm that the Hudson Bay region exhibits a measurably lower gravitational acceleration and free-air gravity anomaly, which is largely attributed to ongoing glacial isostatic adjustment from the Laurentide Ice Sheet.

Verdict: SUPPORTED · 3 sources for, 0 against · Last checked 5 Aug 2026

The analysis

Papers [0], [2], and [6] all specifically examine the gravity anomaly over Hudson Bay and attribute it to glacial isostatic adjustment (post-glacial rebound) following the melting of the Laurentide Ice Sheet. There are no papers contradicting this established geophysical finding.

Evidence for · 3

New inferences of mantle viscosity from joint inversion of long‐wavelength mantle convection and post‐glacial rebound data

1996

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Forte, A. & Mitrovica, J. (1996). New inferences of mantle viscosity from joint inversion of long‐wavelength mantle convection and post‐glacial rebound data. doi.org. https://doi.org/10.1029/96GL00964

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More for · 2

The Hudson Bay free‐air gravity anomaly and glacial rebound

1992

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James, T. S. (1992). The Hudson Bay free‐air gravity anomaly and glacial rebound. doi.org. https://doi.org/10.1029/92gl00687

Long‐Wavelength Gravity Field Constraint on the Lower Mantle Viscosity in North America

2020

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Reusen, J., Root, B., Szwillus, W., Fullea, J., & Wal, W. v. d. (2020). Long‐Wavelength Gravity Field Constraint on the Lower Mantle Viscosity in North America. doi.org. https://doi.org/10.1029/2020JB020484

Related receipts

Is it true that secondary causes such as glacial isostatic adjustment contribute significantly to sea level change? SUPPORTED related question, same topic
Is it true that melting ice caps trigger changes in tectonic movement through glacial isostatic adjustment? SUPPORTED related question, same topic

Receipt History

first checked05 Aug 2026

judged → SUPPORTED · 9005 Aug 2026

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