Abstract
Estimating image uncertainty is fundamental to guiding the interpretation of geoscientific tomographic maps. We reveal novel uncertainty topologies (loops) which indicate that while the speeds of both low- and high-velocity anomalies may be well constrained, their locations tend to remain uncertain. The effect is widespread: loops dominate around a third of United Kingdom Love wave tomographic uncertainties, changing the nature of interpretation of the observed anomalies. Loops exist due to 2nd and higher order aspects of wave physics; hence, although such structures must exist in many tomographic studies in the physical sciences and medicine, they are unobservable using standard linearized methods. Higher order methods might fruitfully be adopted.
Original language | English |
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Article number | 148501 |
Journal | Physical Review Letters |
Volume | 114 |
Issue number | 14 |
Early online date | 6 Apr 2015 |
DOIs | |
Publication status | Published - 10 Apr 2015 |
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Andrew Curtis
- School of Geosciences - Personal Chair of Mathematical Geoscience
Person: Academic: Research Active