ZB18a_300

ZB18a

"ZB18a-300"

<p>Astronomical Solution ZB18a for the Past 300 Myr</p>

Easily calculate precession and obliquity from an orbital solution (defaults to ZB18a from Zeebe and Lourens (2019) <doi:10.1126/science.aax0612>) and assumed or reconstructed values for tidal dissipation (Td) and dynamical ellipticity (Ed). This is a translation and adaptation of the 'C'-code in the supplementary material to Zeebe and Lourens (2022) <doi:10.1029/2021PA004349>, with further details on the methodology described in Zeebe (2022) <doi:10.3847/1538-3881/ac80f8>. The name of the 'C'-routine is 'snvec', which refers to the key units of computation: spin vector s and orbit normal vector n.

Ilja Kocken

snvecR

Calculate Earth’s Obliquity and Precession in the Past

Richard Zeebe

ZB18a_300 function


<div class="section" id="get-solution-zb-a-">
<h3><code>get_solution("ZB18a-300")</code></h3><p></p><p>
</p><p>A data frame with 187,501 rows and 3 columns:</p><dl>
<dt>time</dt>
<dd><p>Time in thousands of years (kyr).</p></dd><p></p><p><dt>ecc</dt>
<dd><p>Eccentricity \(e\) (unitless).</p></dd></p><p><dt>inc</dt>
<dd><p>Inclination \(I\) (degrees).</p></dd></p><p>
</p></dl><p></p><p></p></div>


Format

Astronomical Solution ZB18a for the Past 300 Myr — ZB18a_300


<div class='section' id='get-solution-zb-a-'>
<h3><code>get_solution("ZB18a-300")</code></h3>


<p>A data frame with 187,501 rows and 3 columns:</p><dl>
<dt>time</dt>
<dd><p>Time in thousands of years (kyr).</p></dd>

<dt>ecc</dt>
<dd><p>Eccentricity \(e\) (unitless).</p></dd>

<dt>inc</dt>
<dd><p>Inclination \(I\) (degrees).</p></dd>


</dl>

</div>


ZB18a_300: Astronomical Solution ZB18a for the Past 300 Myr

Description

Arguments

Format

`get_solution("ZB18a-300")`

References