ZB20

ZB20a

ZB20b

ZB20c

ZB20d

<p>Astronomical Solutions ZB20 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

ZB20 function


<div class="section" id="get-solution-zb-x-">
<h3><code>get_solution("ZB20x")</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>ee</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 Solutions ZB20 for the past 300 Myr — ZB20


<div class='section' id='get-solution-zb-x-'>
<h3><code>get_solution("ZB20x")</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>ee</dt>
<dd><p>Eccentricity \(e\) (unitless).</p></dd>

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


</dl>

</div>


ZB20: Astronomical Solutions ZB20 for the past 300 Myr

Description

Arguments

Format

`get_solution("ZB20x")`

References