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NRLMSIS (2.0)

Mass Spectrometer and Incoherent Scatter model

Model Description

NRLMSIS 2.0 is an empirical atmospheric model that extends from the ground to the exobase and describes the average observed behavior of temperature, 8 species densities, and mass density via a parametric analytic formulation. The model inputs are location, day of year, time of day, solar activity, and geomagnetic activity. NRLMSIS 2.0 is a major, reformulated upgrade of the previous version, NRLMSISE-00. The model now couples thermospheric species densities to the entire column, via an effective mass profile that transitions each species from the fully mixed region below ~70 km altitude to the diffusively separated region above ~200 km. Other changes include the extension of atomic oxygen down to 50 km and the use of geopotential height as the internal vertical coordinate. 

Model Figure(s) :

Model Inputs Description

The inputs for the model are:

Year and day

time of day

geodetic altitude from 0 to 1,000 km

geodetic latitude longitude

local apparent solar time

81-day average of F10.7 solar flux

daily F10.7 solar flux for previous day

Daily magnetic index

Model Outputs Description

Output of the model includes:

Helium number density

Oxygen(O) number density

Oxygen (O2) number density

Nitrogen (N) number density

Nitrogen (N2) number density

Argon number density

H Hydrogen number density

total mass density

Anomalous oxygen number density

Exospheric temperature

temperature at altitude

Model Caveats

Change Log

Model Acknowledgement/Publication Policy (if any)

Model Domains:

Space Weather Impacts:

Phenomena :

Simulation Type(s):

Temporal Dependence Possible? (whether the code results depend on physical time?)

Model is available at?

Source code of the model is publicly available?

CCMC Model Status (e.g. onboarding, use in production, retired, only hosting output, only source is available):

Code Language:

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Linked to Other Spase Resource(s) (example: another SimulationModel) :

Curator: Chiu Wiegand | NASA Official: Dr. Masha Kuznetsova | Privacy and Security Notices | Accessibility | CCMC Data Collection Consent Agreement