Climate change in the contiguous United States

The Washington Post's analysis of NOAA climate change data for the contiguous United States.
https://github.com/washingtonpost/data-2C-beyond-the-limit-usa

Category: Sustainable Development
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The Washington Post's analysis of NOAA climate change data for the contiguous United States

• Host: GitHub
• URL: https://github.com/washingtonpost/data-2C-beyond-the-limit-usa
• Owner: washingtonpost
• License: other
• Created: 2020-08-07T12:59:40.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2021-02-16T22:20:27.000Z (about 4 years ago)
• Last Synced: 2025-03-01T09:01:47.656Z (2 months ago)
• Language: HTML
• Homepage:
• Size: 16.7 MB
• Stars: 63
• Watchers: 4
• Forks: 20
• Open Issues: 0
• Releases: 0
• Metadata Files:
  • Readme: README.html
  • License: LICENSE

README.html

          






























































Climate change in the contiguous United States
This repository contains analysis code and data supporting The Washington Post’s series, “2ºC: Beyond the Limit.” The following stories are based on this analysis:

“Extreme climate change has arrived in America,” published August 13, 2019
“Fires, floods and free parking: California’s unending fight against climate change,” published December 5, 2019
“In fast-warming Minnesota, scientists are trying to plant the forests of the future,” published April 29, 2020
“This giant climate hot spot is robbing the West of its water,” published August 7, 2020

Note that the first two stories, published in 2019, used an earlier version of this analysis that ran through 2018.

About our analysis
To analyze warming temperatures in the United States, The Washington Post used the National Oceanic and Atmospheric Administration’s Climate Divisional Database (nClimDiv) and Gridded 5km GHCN-Daily Temperature and Precipitation Dataset (nClimGrid) data sets, which provide monthly temperature data between 1895 and 2019 for the Lower 48 states. We calculated annual mean temperature trends in each state and county in the Lower 48 using linear regression — analyzing both annual average temperatures and temperatures for the three-month winter season (December, January and February).


How to use the data
We are offering several data files that are the product of our analysis of climate change in the contiguous United States from 1895-2019.
Annual average temperatures for each state /data/processed/climdiv_state_year.csv. and county /data/processed/climdiv_county_year.csv. The code to produce this file can be found in /analysis/process_nclimdiv.Rmd. Each row has the following variables:

year
fips A five digit fips code for the county
temp The average annual temperature in Fahrenheit
tempc The average annual temperature in Celsius

Temperature change estimates for each of the Lower 48 states /data/processed/model_state.csv. The code to produce this file is found in /analysis/model_temperature_change.Rmd. Each row has the following variables

fips A two digit fips code for the state
STATE_NAME the state name
Annual Estimate of annual average temperature change in Celsius for the state, 1895-2019
Fall temperature change in September, October and November
Spring temperature change in March, April and May
Summer temperature change in June, July and August
Winter temperature change in December and the following January and February
max_warming_season the season where temperatures are increasing fastest

Temperature change estimates for counties in the contiguous U.S. can be found in /data/processed/model_county.csv. The code to produce this file is found in /analysis/model_temperature_change.Rmd. Each row has the following variables

fips A five digit fips code for the county
CTYNAME the name of the county
STNAME the name of the state
Annual Estimate of annual average temperature change in Celsius for the county, 1895-2019
Fall temperature change in September, October and November
Spring temperature change in March, April and May
Summer temperature change in June, July and August
Winter temperature change in December and the following January and February
max_warming_season the season where temperatures are increasing fastest

County temperature change data joined to a shapefile in GeoJSON format /data/processed/model_county.geojson. The code to produce this file is found in /analysis/model_temperature_change.Rmd.
Gridded emperature change data for the contiguous U.S. in GeoTiff format /data/processed/nclimgrid_slopes_1895_2019.tif. The code to produce this file is found in /analysis/analyze_nclimgrid.Rmd.
When publishing a story, graphic or other work based on this data set, please credit The Washington Post, link to this repository and send us an email so that we can track the ways in which this data is used.


Reproducing the Post’s analysis
We have included code that can be used to reproduce our analysis in the following RMarkdown notebooks:

Processing nClimDiv data
Modeling temperature change
Analyzing nClimGrid raster data

These files were generated using R version 3.5.1 and the following packages: tidyverse, sf, raster, scales.


Licensing
All code in this repository is available under the MIT License. Files in the data/processed/ directory are available under the Creative Commons Attribution 4.0 International (CC BY 4.0) license.


Contact
Contact 2c-data@washpost.com with any questions about this repository.

















        

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• Name: The Washington Post
• Login: washingtonpost
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• Kind: organization
• Description:
• Website: https://washpost.engineering/
• Location: Washington, D.C.
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• Repositories: 87
• Last ynced at: 2024-04-14T11:14:07.049Z
• Profile URL: https://github.com/washingtonpost

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