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ApMode

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Defined in: mod.rs:67

pub enum ApMode {
    Daily,
    ThreeHourly,
}

Which geomagnetic-activity input drives the model.

NRLMSISE-00 offers two formulations of the Ap dependence, selected in the reference implementation by switch 9. They use different fitted coefficients, so this is a choice between two model variants — not a refinement of one.

Variants

Section titled “Variants”

Daily

Section titled “Daily”

Use Nrlmsise00Input::ap_daily only. This is the reference implementation’s default and what the pymsis/Fortran driver uses unless told otherwise.

ThreeHourly

Section titled “ThreeHourly”

Use the 3-hourly history in Nrlmsise00Input::ap_array, which resolves sub-daily geomagnetic storms. Nrlmsise00Input::ap_daily is not read in this mode.