File:Common Era Temperature.svg
Original file (SVG file, nominally 960 × 720 pixels, file size: 124 KB)
Any autoconfirmed user can overwrite this file from the same source. Please ensure that overwrites comply with the guideline.
Summary
| DescriptionCommon Era Temperature.svg |
English: Temperatures with respect to the 1850-1900 mean as per IPCC definition of pre-industrial temperatures over the last 2 millennia and observational values ranging from 1880 to 2020. All data is smoothed using a 5 year moving average.
The 2000 year record is computed in https://www.nature.com/articles/s41561-019-0400-0 using a wide set of proxies that have been vetted by the Pages2k Consortium [1]. They include tree ring data, data from corals and ice core data. A direct link to data is at https://figshare.com/articles/Reconstruction_ensemble_median_and_95_range/8143094 The observational data set is pulled from NASA: https://climate.nasa.gov/vital-signs/global-temperature/ NASA data is adjusted up by 0.188 degrees C since the IPCC says 2006 to 2015 is 0.87 degrees warmer than 1850 to 1900 and NASA averages 0.682 in that time frame. The 2000 year temperature is adjusted up by 0.287667, which is the NASA adjustment from above plus 0.099667 for the NASA average from 1961 to 1990 (the baseline for the 2000 year data set). |
| Date | |
| Source | Own work |
| Author | Efbrazil |
| Other versions |
|
| SVG development InfoField |  This vector image was created with an unknown SVG tool. |
Work is derived from File:Temperature reconstruction last two millennia.svg by User:Femke
Licensing
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
- ↑ (in English) Pages2k Consortium (2017). "A global multiproxy database for temperature reconstructions of the Common Era". Scientific Data 4: 170088. DOI:10.1038/sdata.2017.88. ISSN 2052-4463.
Captions
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:49, 10 July 2025 |  | 960 × 720 (124 KB) | smartcommons>VolatileAnomaly | updated title and better alignment |
File usage
There are no pages that use this file.
