CITATION.cff

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cff-version: 1.2.0
title: >-
  snvecR: Calculate Earth’s Obliquity and Precession in the
  Past
message: >-
  If you use this software, please cite it using the
  metadata from this file.
type: software
authors:
  - family-names: Kocken
    given-names: Ilja
    email: ikocken@hawaii.edu
    orcid: 'https://orcid.org/0000-0003-2196-8718'
  - family-names: Zeebe
    given-names: Richard
    email: zeebe@soest.hawaii.edu
    orcid: 'https://orcid.org/0000-0003-0806-8387'
identifiers:
  - type: doi
    value: 10.5281/zenodo.7865279
    description: Zenodo
repository-code: 'https://github.com/japhir/snvecR'
url: 'https://japhir.github.io/snvecR/'
repository-artifact: 'https://zenodo.org/record/7865280'
abstract: >-
  Easily calculate precession and obliquity from an astronomical solution (defaults to ZB18a from Zeebe and Lourens (2019)) 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), with further details on the methodology described in Zeebe (2022). The name of the 'C'-routine is 'snvec', which refers to the key units of computation: spin vector s and orbit normal vector n.
keywords:
  - orbital forcing
  - precession
  - obliquity
  - tilt
  - tidal dissipation
  - dynamical ellipticity
  - astronomical solution
  - Milankovitch
  - snvec
  - cyclostratigraphy
  - palaeoceanography
  - peleoceanography
  - paleoclimate
  - earth sciences
  - marine sciences
license: GPL-3.0-or-later
version: 3.9.4
date-released: '2024-05-28'
references:
- authors:
  - family-names: Zeebe
    given-names: Richard E.
  - family-names: Lourens
    given-names: Lucas J.
  year: 2019
  title: "Solar System chaos and the Paleocene–Eocene boundary age constrained by geology and astronomy."
  journal: Science
  volume: 365
  issue: 6456
  pages: 926-929
  doi: 10.1126/science.aax0612
  type: article
- authors:
  - family-names: Zeebe
    given-names: Richard E.
  - family-names: Lourens
    given-names: Lucas J.
  year: 2022
  title: "A deep-time dating tool for paleo-applications utilizing obliquity and precession cycles: The role of dynamical ellipticity and tidal dissipation."
  journal: "Paleoceanography and Paleoclimatology"
  doi: 10.1029/2021PA004349
  type: article
- authors:
  - family-names: Zeebe
    given-names: Richard E.
  year: 2022
  title: "Reduced Variations in Earth’s and Mars’ Orbital Inclination and Earth’s Obliquity from 58 to 48 Myr ago due to Solar System Chaos."
  journal: "The Astronomical Journal"
  volume: 164
  issue: 3
  doi: 10.3847/1538-3881/ac80f8
  type: article