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Change","sub_category":"Earth and Climate Modeling","monthly_downloads":0,"total_dependent_repos":0,"total_dependent_packages":0,"readme":"---\noutput: github_document\n---\n\n\u003c!-- README.md is generated from README.Rmd. Please edit this file then run devtools::build_readme() --\u003e\n\n```{r, include = FALSE}\nknitr::opts_chunk$set(\n  collapse = TRUE,\n  comment = \"#\u003e\",\n  fig.path = \"man/figures/README-\",\n  out.width = \"100%\"\n)\nlibrary(hector)\nlibrary(ggplot2)\n```\n\n# hector\n\n[![DOI](https://zenodo.org/badge/22892935.svg)](https://zenodo.org/badge/latestdoi/22892935) [![C++ unit tests](https://github.com/JGCRI/hector/actions/workflows/unit-testing.yaml/badge.svg)](https://github.com/JGCRI/hector/actions/workflows/unit-testing.yaml) [![Command Line Hector](https://github.com/JGCRI/hector/actions/workflows/command-line.yaml/badge.svg)](https://github.com/JGCRI/hector/actions/workflows/command-line.yaml)  [![R-CMD-check](https://github.com/JGCRI/hector/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/JGCRI/hector/actions/workflows/R-CMD-check.yaml) \n\nThis is the repository for **Hector**, an open source, object-oriented, simple \nglobal climate carbon-cycle model that runs very quickly while still\nrepresenting the most critical global scale earth system processes. \nHector is a simple climate model (SCM, also known as a reduced-complexity climate model),\na class of models that are extremely versatile with a wide\nrange of applications. Due to their computational efficiency, SCMs can easily\nbe coupled to other models and used to design scenarios, emulate more complex \nclimate models, and conduct uncertainty analyses.\n\n```{r tas_plot, echo=FALSE, fig.width=8, fig.height=4}\n# The variable naps and dates of variables to save.\nvars_to_plot \u003c- GLOBAL_TAS()\ndates_to_plot \u003c- 1850:2100\n\n# Color palette used by the IPCC\nSSP_COLORS \u003c- c(\n  \"ssp119\" = \"#00a9cf\", \"ssp126\" = \"#003466\", \"ssp245\" = \"#f69320\",\n  \"ssp370\" = \"#df0000\", \"ssp434\" = \"#2274ae\", \"ssp460\" = \"#b0724e\",\n  \"ssp585\" = \"#980002\", \"ssp534-overshoot\" = \"grey\", \"historical\" = \"#000000\",\n  \"historical\" = \"#92397a\"\n)\n\n# Set up and run hector.\nini_files \u003c- list.files(file.path(\"inst\", \"input\"), pattern = \"ini\", full.names = TRUE)\nhector_tas_results \u003c- do.call(lapply(ini_files, function(f) {\n  name \u003c- gsub(pattern = \"hector_|.ini\", x = basename(path = f), replacement = \"\")\n  hc \u003c- newcore(f, name = name)\n  run(hc)\n  out \u003c- fetchvars(hc, dates_to_plot, vars = vars_to_plot)\n  return(out)\n}), what = \"rbind\")\n\n# Modify the results data frame.\nhector_tas_results$scenario \u003c- ifelse(hector_tas_results$scenario == \"ssp534-over\",\n  \"ssp534-overshoot\", hector_tas_results$scenario\n)\nhector_tas_results$scenario \u003c- ifelse(hector_tas_results$year \u003c= 2016, \"historical\",\n  hector_tas_results$scenario\n)\nggplot(hector_tas_results) +\n  geom_line(aes(year, value, color = scenario), linewidth = 1) +\n  theme_bw(base_size = 15) +\n  theme(axis.title = element_text(size = 12)) +\n  labs(color = NULL, x = NULL, y = expression(\"Temperature Anomaly Relative to 1750 (\" ~ degree ~ \"C)\")) +\n  scale_color_manual(values = SSP_COLORS)\n```\n\nHector's output for global mean air temperature change for eight Shared Socioeconomic Pathways (SSPs).\n\n## Installation \n\nThe `hector` R package can be installed using the `remotes::install_github` \nfunction. More detailed installation instructions, including how to set up\nHector as a command line executable, can be found [here](articles/BuildHector.html).\n\n```r\nremotes::install_github('jgcri/hector')\nlibrary(hector)\n```\n\n## Tools and Software That Work with Hector\n\n* [GCAM](https://github.com/JGCRI/gcam-core): Hector can be used as the climate component in [GCAM](http://jgcri.github.io/gcam-doc/)\n* [pyhector](https://github.com/openclimatedata/pyhector): a Python\ninterface to Hector\n* [fldgen](https://github.com/JGCRI/fldgen): a spatially resolved temperature \u0026 precipitation emulator for CMIP5 ESMs\n* [HectorUI](https://jgcri.shinyapps.io/HectorUI/): run Hector in a web interface!\n\n## Contributing to Hector\n\nThe Hector team welcomes and values community contributions, but please see \nour [Contribution Guide](https://jgcri.github.io/hector/articles/ContributionsGuide.html) and note by  contributing \nto this project, you agree to abide to our [Contributor Code of Conduct](CODE_OF_CONDUCT.md)\n\n*** \n\nThis research was supported by the U.S. Department of Energy, Office of Science, as part of research in Multi-Sector Dynamics, Earth and Environmental System Modeling Program. The Pacific Northwest National Laboratory is operated for DOE by Battelle Memorial Institute under contract DE-AC05-76RL01830.\n","funding_links":[],"readme_doi_urls":[],"works":{},"citation_counts":{},"total_citations":0,"keywords_from_contributors":["economics","gcam","human-earth-system","water","coupled-human-natural-systems","integrated-assessment","land","china","gcam-china","integrated-assessment-model"],"project_url":"https://ost.ecosyste.ms/api/v1/projects/76735","html_url":"https://ost.ecosyste.ms/projects/76735"}