Measuring and Comparing Ellipses @Antonio_Zamora
Measuring and Comparing Ellipses  @Antonio_Zamora
Uploaded January 2026 | Updated September 2026, 1 hour ago
This presentation evaluates methods of comparing ellipses that are fitted to geological features, such as thermokarst lakes and Carolina Bays. The presentation introduces an approach for comparing the goodness of fit of ellipses measured using different scales.

The Neglected Carolina Bays: Ubiquitous Geological Evidence of a Cataclysm.
Amazon: amzn.to/4dqrcRY

A. Zamora, A model for the geomorphology of the Carolina Bays, Geomorphology, 282, 209–216. (2017), DOI 10.1016/j.geomorph.2017.01.019
doi.org/10.1016/j.geomorph.2017.01.019

LiDAR Visualization Tool for Google Earth by Michael Davias. ovoidbasinsurvey.cintos.org
lidar-hrtm.cintos.org

Python program for fitting ellipses to the Carolina Bays by the least squares method.
github.com/citpeks/Carolina-Bays-least-squares-ellipse-fitting

Fit ellipses using a web browser
pyscript.com/@ellipses123/ellipse-fitting/latest
Measuring and Comparing EllipsesCarolina Bays are ellipticalDaily Dose of Carolina Bays - Beavers made the baysDaily Dose of Carolina Bays - Elliptical PrecisionImpact Origin of the Carolina BaysAirburst Myth - Daily Dose of Carolina BaysDaily Dose of Carolina Bays - YD Human TragedyDaily Dose of Carolina Bays - Meteoritic hypothesisGeometry of the Carolina Bays explainedDaily Dose of Carolina Bays - Inverted StratigraphyFlamingo Bay - shocked quartz and inverted stratigraphyYounger Dryas Ground Zero
Antonio Zamora |

Measuring and Comparing Ellipses

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