READ ME File For 'Dataset supporting the article: "Future Decreases in Thermospheric Neutral Density in Low Earth Orbit due to Carbon Dioxide Emissions"'

Dataset DOI: https://doi.org/10.5258/SOTON/D2114

Date that the file was created: January 2022

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GENERAL INFORMATION
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ReadMe Author: Matthew, Kenneth Brown, University of Southampton

Date of data collection: 2022

Information about geographic location of data collection: UK


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SHARING/ACCESS INFORMATION
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Licenses/restrictions placed on the data, or limitations of reuse:CC-BY

Recommended citation for the data:

This dataset supports the publication:
"Future Decreases in Thermospheric Neutral Density in Low Earth Orbit due to Carbon Dioxide Emissions". 
 Published in JGR Atmospheres, Volume126, Issue8, 27 April 2021, e2021JD034589
 https://doi.org/10.1029/2021JD034589



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DATA & FILE OVERVIEW
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This dataset contains:

The data portrays Neutral density scaling tables for empirical atmospheric models to account for thermospheric contraction due to carbon dioxide emissions.

Scaling factors that can be applied to the neutral densities obtained from empirical atmospheric models, particularly NRLMSISE-00. 
These are designed to account for the reductions in density within the upper atmosphere caused by carbon dioxide emissions.
They were created using WACCM-X (see https://doi.org/10.1029/2021JD034589 for further details on the low solar activity data).
Each scaling factor is relative to the year 2000, and is dependent upon altitude (range 100-500 km), 
solar activity through F10.7 (70-200 sfu) and ground-level carbon dioxide concentration (368.9 to 890.0 ppm, covering years 2000-2100 in the RCP8.5 scenario). 
RCP refers to the Representative Concentration Pathways of the IPCC's Fifth Assessment Report. 
ScalingArray.txt is dependent upon carbon dioxide concentration, while each .txt file with an RCP appended is dependent upon the year (2000-2100) instead,
following the carbon dioxide concentrations of the named RCP. 
Each file contains information on the format of the table used.



People involved with sample collection, processing, analysis and/or submission:

M. K. Brown, H. G. Lewis, A. J. Kavanagh, I. Cnossen