The physics-based TIE-GCM OTHITACS 2007

Kodikara, Timothy

Dataset
Summary
[ Derived from parent entry - See data hierarchy tab ]

TIE-GCM (thermosphere-ionosphere-electrodynamics general circulation model) is a three-dimensional, time-dependent, physics-based model of the thermosphere and ionosphere (https://doi.org/10.1029/92GL00401). The website http://www.hao.ucar.edu/modeling/tgcm hosts the open-source TIE-GCM code. TIE-GCM assumes hydrostatic equilibrium, constant gravity, steady-state ion and electron energy equations, and incompressibility on a constant pressure surface.

In this experiment, we use TIE-GCM version 2.0 (released on 21 March 2016) with a horizontal resolution of 2.5 by 2.5 in geographic latitude and longitude, and a vertical resolution of 0.25 scale-height. We specify the solar irradiance input to the model via an empirical solar proxy model—the extreme ultraviolet flux model for aeronomic calculations (EUVAC; https://doi.org/10.1029/94JA00518; https://doi.org/10.1029/2005JA011160). This empirical formulation uses the average of the daily solar flux F10.7 and its 81-day centred mean. Here, we use the value observed by the ground-based solar radio telescope, as it is more suitable for upper-atmospheric applications than the F10.7 adjusted for Earth-Sun distance. We use the Kp index-based ion convection model of Heelis et al. (1982; https://doi.org/10.1029/JA087iA08p06339) and the auroral particle precipitation scheme of Roble and Ridley (1987; https://ui.adsabs.harvard.edu/abs/1987AnGeo...5..369R) with modifications of Emery et al. (2012; http://doi.org/10.5065/D6N29TXZ) to specify the magnetospheric forcing, which describes the high-latitude mean energy, energy flux and electric potential. To account for the tidal forcing from the lower atmosphere, we use the global scale wave model (GSWM) of Hagan et al. (2001; https://doi.org/10.1029/2000JA000344) to perturb the lower boundary of the TIE-GCM. Here, the GSWM specifies the migrating diurnal and semidiurnal and the nonmigrating diurnal and semidiurnal tides, which add perturbations to the zonal mean neutral temperature and horizontal winds, among others. We also add perturbations to the advective and diffusive transport via the constant eddy diffusion coefficient described in Qian et al. (2009; https://doi.org/10.1029/2008JA013643).

Through this experiment, we provide access to the following diagnostic quantities at a cadence of 10 minutes:
Neutral temperature,
Neutral zonal wind,
Neutral meridional wind,
Neutral vertical wind,
Molecular oxygen,
Atomic oxygen,
Molecular nitrogen,
Nitric oxide,
Helium,
Total neutral mass density,
TEC: total electron content,
Electron density,
Electron temperature,
Ion temperature,
O+ ion,
O2+ ion,
Electric potential,
Joule heating,
BX/BMAG: normalized eastward component of magnetic field,
BY/BMAG: normalized northward component of magnetic field,
BZ/BMAG: normalized upward component of magnetic field,
BMAG: magnetic field magnitude,
Zonal ExB velocity,
Meridional ExB velocity,
Vertical ExB velocity,
Zonal component of electric field,
Meridional component of electric field,
Vertical component of electric field,
Magnetic eastward component of electric field,
Magnetic downward (equatorward) component of electric field,
Geopotential height,
Geometric height ZG,
Pedersen conductivity,
Hall conductivity,
Pedersen ion drag coefficient,
Hall ion drag coefficient,
Aurora energy flux,
Aurora number flux.
Project
OTHITACS (The open time-series of the high-resolution ionosphere-thermosphere aeronomic climate simulation)
Spatial Coverage
Longitude -180 to 180 Latitude -88.75 to 88.75 Altitude: -7 level to 7 level
Temporal Coverage
2007-01-01 to 2007-12-31 (standard)
Use constraints
Creative Commons Attribution 4.0 International (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/)
Data Catalog
World Data Center for Climate
Access constraints
registered users
Size
3.59 TiB (3944367909760 Byte)
Format
NetCDF
Status
completely archived
Creation Date
Future Review Date
2033-04-21
Download Permission
Please login to check permission and download options
Cite as
[ Derived from parent entry - See data hierarchy tab ]
Kodikara, Timothy (2023). The open time-series of the high-resolution ionosphere-thermosphere aeronomic climate simulation (OTHITACS). World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.26050/WDCC/OTHITACS_tiegcm

BibTeX RIS
VariableAggregationUnit
81-day average 10.7 cm solar flux
10min1.e-22 W/m2/Hz
air_densityCF
10ming cm-3
air_temperatureCF
10minK
amplitude and phase of diurnal tide mode (1,1)
10minNone
amplitudes and phases of semi-diurnal tide
10minNone
atomic oxygen ion
10mincm-3
atomic_oxygen_mass_mixing_ratio
10minNone
Aurora Energy Flux
10minergs/cm2/s
Aurora Number Flux
10mincm-2 s-1
BX component of magnetic field
10minNone
BY component of magnetic field
10minNone
BZ component of magnetic field
10minNone
Characteristic Maxwellian energy of drizzle electrons
10minkeV
Characteristic Maxwellian energy of polar cusp electrons
10minkeV
Column energy input of drizzle electrons
10minergs/cm2/s
Column energy input of polar cusp electrons
10minergs/cm2/s
critical cross-over latitude 1
10mindegree
critical cross-over latitude 2
10mindegree
Cross-tail potential
10minkV
Daily 10.7 cm solar flux
10min1.e-22 W/m2/Hz
eastward_windCF
10mincm s-1
electric potential
10minV
electron densitiy
10mincm-3
electron temperature
10minK
Gaussian half-width of the midnight auroral oval
10mindegrees
Gaussian half-width of the noon auroral oval
10mindegrees
geometric height
10mincm
geopotential_heightCF
10mincm
gravitational acceleration
10mincm s-1
Hall Conductivity
10minS/m
Hall Ion Drag Coefficient
10mins-1
helium_mass_mixing_ratio
10minNone
Hemispheric power
10minGW
ion temperature
10minK
ion/neutral collision factor
10minNone
Joule Heating
10minerg/g/s
joule heating factor
10minNone
Kp index
10minNone
lat,lon coordinates of S,N magnetic poles
10mindegrees
Lower magnetic auroral activity index
10minnT
Magnetic downward (equatorward) component of electric field
10minV/m
Magnetic eastward component of electric field
10minV/m
Magnetic field magnitude
10minGauss
Meridional component of electric field
10minV/m
Meridional ExB Velocity
10mincm s-1
molecular oxygen ion
10mincm-3
molecular_nitrogen_mass_mixing_ratio
10minNone
molecular_oxygen_mass_mixing_ratio
10minNone
nitric_oxide_mass_mixing_ratio
10minNone
northward_windCF
10mincm s-1
Peak energy flux in midnight sector of the aurora
10minergs/cm2/s
Peak energy flux in noon sector of the aurora
10minergs/cm2/s
Pedersen Conductivity
10minS/m
Pedersen Ion Drag Coefficient
10mins-1
reference_air_pressure_for_atmosphere_vertical_coordinateCF
10minmb
Solar wind density
10mincm3
Solar wind velocity
10minkm s-1
Total Electron Content
10mincm-2
upward_air_velocityCF
10mincm s-1
Vertical component of electric field
10minV/m
Vertical ExB Velocity
10mincm s-1
ZMAG from pdynamo
10minkm
Zonal component of electric field
10minV/m
Zonal ExB Velocity
10mincm s-1

Parent

The physics-based TIE-GCM OTHITACS
Details
[Entry acronym: OTHITACS_tiegcm_2007] [Entry id: 4458250]