Astronomical Solutions PT-ZB18a(E_d,T_d)

The pre-computed precession-tilt solutions PT-ZB18a(E_d,T_d) span the past 100 Myr. Available solutions include all combinations of dynamical ellipticity values between 0.9950 and 1.0050 in increments of 0.0010 and tidal dissipation values between 0.000 and 1.2000 in increments of 0.1.

Format

get_solution("PT-ZB18a(1.000,1.000)")

A data frame with 249,480 rows and 4 columns:

time

Time in thousands of years (kyr).

epl

Obliqity \(\epsilon\) (radians).

phi

Axial Precession \(\phi\) (radians).

cp

Climatic Precession \(e \sin(\bar{\omega})\) (unitless).

Source

All astronomical solutions by Zeebe can be found on http://www.soest.hawaii.edu/oceanography/faculty/zeebe_files/Astro.html.

They can be loaded into R quickly, using get_solution().

References

Zeebe, R. E. and Lourens, L. J. (2022). Geologically constrained astronomical solutions for the Cenozoic era. Earth and Planetary Science Letters. doi:10.1016/j.epsl.2022.117595