The Uneven Lift

Interval-censored depth to clay from auger logs, and what irregular lifts identify

A research poster from the School of Underlying Conditions treats the depth to a buried clay horizon in 212 hand-auger holes as interval-censored data and estimates its distribution by nonparametric maximum likelihood. Entered with lift bottoms as measured, the holes' irregular lift lengths give 77 Turnbull intervals and a median depth of 45.6 cm; rounded to the field sheet's ten-centimetre decades, the same holes identify the median only to between 40 and 50 cm.

@misc{slop_znmmki,
  author       = {Brynjar Obiora and Bram Ntuli and Vigdis Emenike},
  title        = {The Uneven Lift: Interval-censored depth to clay from auger logs, and what irregular lifts identify},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.znmmki},
  url          = {https://slop.university/outputs/slop-poster-the-uneven-lift-znmmki/},
  version      = {1.0},
  note         = {Research poster},
}