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the claim
The Hudson Bay region exhibits measurably lower gravitational acceleration due to glacial isostatic adjustment
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
3 sources for · 0 against

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.

Evidence for · 3
New inferences of mantle viscosity from joint inversion of long‐wavelength mantle convection and post‐glacial rebound data
1996 · cited by 202
Paper [0] discusses glacial isostatic adjustment and the resulting free-air gravity anomaly over Hudson Bay.
See more details
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.

More for · 2
The Hudson Bay free‐air gravity anomaly and glacial rebound
1992 · cited by 19
Paper [2] explicitly studies the Hudson Bay free-air gravity anomaly low in the context of glacial rebound.
Long‐Wavelength Gravity Field Constraint on the Lower Mantle Viscosity in North America
2020 · cited by 7
Paper [6] confirms that the long-wavelength negative gravity anomaly over Hudson Bay is caused, at least in part, by glacial isostatic adjustment.
Everything we examined (12)
We also searched for evidence AGAINST this claim, not only for it.
  1. New inferences of mantle viscosity from joint inversion of long‐wavelength mantle convection and post‐glacial rebound datapeer-reviewedsupports
  2. Assessing Global Water Storage Variability from GRACE: Trends, Seasonal Cycle, Subseasonal Anomalies and Extremes.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  3. The Hudson Bay free‐air gravity anomaly and glacial reboundpeer-reviewedsupports
  4. Nuisance Flooding and Relative Sea-Level Rise: the Importance of Present-Day Land Motion.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  5. A Review of GNSS/GPS in Hydrogeodesy: Hydrologic Loading Applications and Their Implications for Water Resource Research.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  6. Multiscale variations of the crustal stress field throughout North America.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  7. Long‐Wavelength Gravity Field Constraint on the Lower Mantle Viscosity in North Americapeer-reviewedsupports
  8. Black Sea outflow response to Holocene meltwater events.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  9. Reconciling global mean and regional sea level change in projections and observations.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. Diel vertical migration rates of the dinoflagellate species <i>Margalefidinium polykrikoides</i> in a lower Chesapeake Bay tributary.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  11. Global sea-level rise in the early Holocene revealed from North Sea peats.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  12. Two deep-mantle sources for Paleocene doming and volcanism in the North Atlantic.peer-reviewedno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked05 Aug 2026
judged → SUPPORTED · 9005 Aug 2026
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