# Creation date (YYYY-MM-DD): 2021-07-15 
# File created by: Darrell Kaufman
# email: Darrell.Kaufman@nau.edu
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# GENERAL INFORMATION 
# 
# *Title 
# Readme for data for Figure SPM.1 from the Summary for Policymakers of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6). 
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# DATA & FILE OVERVIEW
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# List of all files and subfolders
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# --------------------------
# Panel a
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# --------------------------
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# *Data creators
# Name: Darrell Kaufman
# Institution: Northern Arizona University, USA
# email: Darrell.Kaufman@nau.edu
#
# Name: Raphael Neukom on behalf of PAGES2k Consortium
# Institution: University of Bern, Switzerland
# email: neukom@giub.unibe.ch
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# *Comments
# 1-2000 CE reconstruction, decadal smoothed, from PAGES2k Consortium (2019: 10.1038/s41561-019-0400-0)
# 1850-2020 CE, decadal smoothed, from AR6 Chapter 2 assessed mean
# Around 6500 years ago (4500 BCE), multi-centennial average, from AR6 Chapter 2
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# --------------------------
# filename 1: ‘SPM1_1-2000_recon.csv’
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# N° of columns: 4
# Column headings: year, temp, 5%, 95%
#        
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# column_name 1: year
# long_name: year
# units: year CE
# type (int/float/char): int
# comments: 1-2000 time series decadal smoothed for years centered on 5-1995 CE
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# column_name 2: temp
# long_name: temperature
# units: degrees C
# missing_value: NA
# type (int/float/char): float
# comments: relative to 1850-1900 reference period
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# column_name 3: 5%
# long_name: 5th percentile
# units: degrees C
# missing_value: NA
# type (int/float/char): float
# comments: from multi-method ensemble
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# column_name 4: 95%
# long_name: 95th percentile
# units: degrees C
# missing_value: NA
# type (int/float/char): float
# comments: from multi-method ensemble
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# --------------------------
# filename 2: ‘SPM1_1850-2020_obs.csv’
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# N° of columns: 2
# Column headings: year, temp
#        
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# column_name 1: year
# long_name: year
# units: year CE
# type (int/float/char): int
# comments: 1850-2020 time series decadal smoothed for years centered on 1855-2016 CE
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# column_name 2: temp
# long_name: temperature
# units: degrees C
# missing_value: NA
# type (int/float/char): float
# comments: relative to 1850-1900 reference period
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# --------------------------
# filename 3: ‘SPM1_6500_recon.csv’
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# N° of columns: 2
# Column headings: 5%, 95%
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# column_name 1: age
# long_name: years before 2000
# units: year
# type (int/float/char): int
# comments: around 6500 years ago (4500 BCE)
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# column_name 1: 5%
# long_name: 5th percentile
# units: degrees C
# type (int/float/char): float
# comments: assessed very likely range
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# column_name 2: 95%
# long_name: 95th percentile
# units: degrees C
# missing_value: NA
# type (int/float/char): float
# comments: assessed very likely range
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# --------------------------
# Panel b
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# filename 1: ‘gmst_changes_model_and_obs.csv’
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# Comment: BADC-CSV file: NetCDF and BADC-CSV files contain metadata, providing information about what is available in the files.
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# ========================
