Thermospheric cooling under RCP8.5 and high solar activity due to carbon dioxide increases only, select years from 1975-2095

This dataset contains WACCM-X model results under RCP8.5 (Representative Concentration Pathway) carbon dioxide increases and high solar activity (F10.7 = 200 sfu). These cover ground level to a pressure level of 4e-10 hPa (~300 km altitude) on a global 144x96 longitude-latitude grid .

Data is given in daily instantaneous (.h2.) and monthly average (.h0.) files in the netCDF format. Default WACCM-X outputs remain, along with the following additional variables:

'PS' - Surface Pressure

'Z3' - Geopotential Height (above sea level)

'T' - Temperature

'U' - Zonal Wind

'V' - Meridional Wind

'CO2' - Carbon Dioxide Concentration

'CO' - Carbon Monoxide Concentration

'NO' - Nitric Oxide Concentration

'H2O' - Water Vapour Concentration

'O' - Atomic Oxygen Concentration

More detail on each variable is given within the netCDF files and the readme file.

64 month runs from edited initial files at 10 year intervals from 2015 to 2095 under RCP8.5. There is also a 28 month 1975 run and 64 month 2000 run. All of these cyclically repeat the initial year. These are separated into individual folders with the RCP8.5 CO2 concentration listed. The first 4 months of each of these datasets have been ignored in processing as the model spins up, but are included here for completeness.

This data was collected to understand the density drop at low earth orbit altitudes as carbon dioxide concentrations increase.

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Identification info

Metadata Language
English (en)
Dataset Reference Date ()
2021-12-03T15:05:09
Dataset Reference Date ()
2021-12-03T15:05:09
Identifier
http://catalogue.ceda.ac.uk/uuid/09198c58032d4b8197fd7c6748b92785
Identifier
NERC EDS Centre for Environmental Data Analysis / 09198c58032d4b8197fd7c6748b92785
Identifier
doi / 10.5285/09198c58032d4b8197fd7c6748b92785
  Unavailable - Brown, Matthew ( author )
  NERC EDS Centre for Environmental Data Analysis - custodian
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
  NERC EDS Centre for Environmental Data Analysis - distributor
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
  NERC EDS Centre for Environmental Data Analysis - point_of_contact
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
  NERC EDS Centre for Environmental Data Analysis - publisher
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
Maintenance and update frequency
notPlanned
Update scope
dataset
Keywords
  • thermospheric
  • cooling
  • model
GEMET - INSPIRE themes, version 1.0 ()
  • atmospheric conditions
Limitations on Public Access
otherRestrictions
Other constraints
Public data: access to these data is available to both registered and non-registered users.
Use constraints
otherRestrictions
Other constraints
Use of these data is covered by the following licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ . When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Spatial representation type
grid
Topic category
  • Climatology, meteorology, atmosphere
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W


Begin date
1975-01-01T00:00:00
End date
2095-12-31T00:00:00
 
Code
WGS 84

Distribution Information

Data format
  • Data are netCDF formatted ()

Resource Locator
CEDA Data Catalogue Page

Detail and access information for the resource

Resource Locator
DOWNLOAD

Download Data

Resource Locator
CEDA Data Catalogue Page

Detail and access information for the resource

Resource Locator
DOWNLOAD

Download Data

 
Quality Scope
dataset

Report

Dataset Reference Date ()
2010-12-08
Statement

Input data other than default is obtained from the subversion input data repository at https://svn-ccsm-inputdata.cgd.ucar.edu/trunk/

These files changed in user_nl_cam include

solar_parms_file = '/.../inputdata/atm/waccm/phot/wa_smin_quiet_c071210.nc'

srf_emis_specifier = 'CH2O -> /.../inputdata/atm/cam/chem/2000-2100_RCP45/IPCC_emissions_houw_CH2O_2000-2100_1.9x2.5.nc',

'CO -> /.../inputdata/atm/cam/chem/2000-2100_RCP45/IPCC_emissions_houw_CO_2000-2100_1.9x2.5.nc',

'NO -> /.../inputdata/atm/cam/chem/2000-2100_RCP45/IPCC_emissions_houw_NOx_2000-2100_1.9x2.5.nc'

aero_file = 'aero_rcp45_v1_1.9x2.5_L26_1995-2105_c100316.nc'

solar_data_file = '/.../inputdata/atm/cam/solar/spectral_irradiance_Lean_1950-2100_daily_CCMI_Leap_c150727.nc'

1975 run used all default input files.

Initial conditions are those of the default year 2000 run, with CO2 and CO concentrations in the initial files edited as described within the paper (Brown et al, 2021).

The files uploaded here are the raw files output by WACCM-X with no editing.

Metadata

File identifier
09198c58032d4b8197fd7c6748b92785 XML
Metadata Language
English (en)
Character set
8-bit variable size UCS Transfer Format, based on ISO/IEC 10646
Resource type
dataset
Metadata Date
2022-10-21T00:15:56
Metadata standard name
UK GEMINI
Metadata standard version
2.3
  NERC EDS Centre for Environmental Data Analysis
RAL Space , STFC Rutherford Appleton Laboratory, Harwell Campus , Didcot , OX11 0QX , United Kingdom
01235446432
 
 

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