cp-2018-42

Scripts and data used in "The 405 kyr and 2.4 Myr eccentricity components in Cenozoic carbon isotope records"

https://github.com/japhir/cp-2018-42

Science Score: 54.0%

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    Links to: zenodo.org
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    Low similarity (9.1%) to scientific vocabulary
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Repository

Scripts and data used in "The 405 kyr and 2.4 Myr eccentricity components in Cenozoic carbon isotope records"

Basic Info
  • Host: GitHub
  • Owner: japhir
  • License: lgpl-3.0
  • Language: R
  • Default Branch: master
  • Homepage:
  • Size: 2.02 MB
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  • Stars: 1
  • Watchers: 1
  • Forks: 0
  • Open Issues: 0
  • Releases: 4
Created over 7 years ago · Last pushed about 3 years ago
Metadata Files
Readme License Citation

README.md

Scripts and data used in ‘The 405 kyr and 2.4 Myr eccentricity components in Cenozoic carbon isotope records’

DOI

climate of the past discussions

Data composite

This repository contains the R-scripts used to generate the data composite (scripts/read_data.R and scripts/make_datacomposite.R), as well as the data sources used from the cited publications:

| file | reference | |------------------------------------------|---------------------------| | data/320-U1334_d18O-d13C.tab | Beddow et al., 2016 | | data/321-U1337_isotope_benth_foram.tab | Holbourn et al., 2015 | | data/Pälike_clean.csv | Pälike et al., 2006 | | data/Tian_U1337_all.csv | Tian et al., 2013 | | data/Zachos2008.csv | Zachos et al., 2001, 2008 |

The out/ directory contains the results of the R-scripts.

R-code used to generate the figures was omitted, because it would require substantial cleaning up and commenting before being publication-ready and possibly useful to others.

LOSCAR astronomical forcing

The LOSCAR source code in C can be obtained from the authors by sending a request to loscar.model@gmail.com.

The LOSCAR model version used here was 2.0.4. To see which changes were made to the 2.0.4 LOSCAR model, see the patch file (Loscar-2.0.4.patch). In short, it introduces astronomical forcing as a new input source, as well as noise. To achieve this, we define some new input paramters (ORBFILE, ORBSTRENGTH, and NOISELEVEL) and some new global variables for turning on/off the specific components (NOISE, SCALE, VERBOSE, ADDNOISE, etc.). If you have access to the Loscar source code, you can apply the patch by running the following comand from your terminal:

```{bash}

assuming you have Loscar-2.0.4 in your ~/Downloads

cd ~/Downloads/Loscar-2.0.4/

download the patch file

wget https://raw.githubusercontent.com/japhir/cp-2018-42/master/Loscar-2.0.4.patch

copy the emiss.c file to orb.c, our new file

cp emiss.c orb.c

apply the patch to the whole directory

patch -p1 < ./Loscar-2.0.4.patch

build the program

make

make the binary executable

chmod +x loscar.x

run the program

./loscar.x ```

Owner

  • Name: Ilja Kocken
  • Login: japhir
  • Kind: user
  • Location: The Netherlands
  • Company: @UtrechtUniversity

PhD Candidate in Palaeoclimate | Data Steward for Earth Sciences

Citation (CITATION.cff)

# This CITATION.cff file was generated with cffinit.
# Visit https://bit.ly/cffinit to generate yours today!

cff-version: 1.2.0
title: >-
  Scripts and data used in 'The 405 kyr and 2.4 Myr
  eccentricity components in Cenozoic carbon isotope
  records'
message: >-
  If you use this software, please cite both the article and
  the software itself.
type: software
authors:
  - given-names: Ilja Japhir
    family-names: Kocken
    email: i.j.kocken@uu.nl
    affiliation: Utrecht University
    orcid: 'https://orcid.org/0000-0003-2196-8718'
identifiers:
  - type: doi
    value: 10.5281/zenodo.7864676
    description: Zenodo
repository-code: 'https://github.com/japhir/cp-2018-42'
repository: 'https://zenodo.org/record/7864676'
abstract: >-
  This repository contains the R-scripts used to generate
  the data composite (scripts/read_data.R and
  scripts/make_datacomposite.R), as well as the data sources
  used from the cited publications.


  The LOSCAR model version used here was 2.0.4. To see which
  changes were made to the 2.0.4 LOSCAR model, see the patch
  file (Loscar-2.0.4.patch). In short, it introduces
  astronomical forcing as a new input source, as well as
  noise. To achieve this, we define some new input paramters
  (ORBFILE, ORBSTRENGTH, and NOISELEVEL) and some new global
  variables for turning on/off the specific components
  (NOISE, SCALE, VERBOSE, ADDNOISE, etc.). If you have
  access to the Loscar source code, you can apply the patch
  by running the following comand from your terminal:
keywords:
  - LOSCAR
  - carbon cycle
  - eccentricity
  - Milankovitch
  - 2.4 Myr
  - burial
license: LGPL-3.0-or-later
version: v1.1.0
date-released: '2018-12-26'
references:
  - authors:
    - family-names: Kocken
      given-names: Ilja J.
      orcid: 'https://orcid.org/0000-0003-2196-8718'
    - family-names: Cramwinckel
      given-names: Margot J.
    - family-names: Zeebe
      given-names: Richard E.
    - family-names: Middelburg
      given-names: Jack J.
    - family-names: Sluijs
      given-names: Appy
    type: article
    year: 2019
    title: >-
      The 405 kyr and 2.4 Myr eccentricity components in Cenozoic carbon isotope
      records
    journal: Climate of the Past
    volume: 15
    pages: 91--104
    doi: 10.5194/cp-15-91-2019

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