Modifications from SAMI2-1.00¶
The calculation for the output step size was adjusted to be closer to the desired data cadence.
This version uses the official release of NRLMSISe-00 (with one modification, discussed below). The unmodified version can be found at https://map.nrl.navy.mil/map/pub/nrl/NRLMSIS/NRLMSISE-00/
The exospheric neutral temperature can be directly scaled by the user for
extreme solar minimum conditions, as discussed by Emmert et al . This
is modified by the
Tinf_scale keyword, and is passed through the namelist
The photoionization rates can be modified by scaling the resultant EUV spectra.
Note that this occurs independently of any modifications to the neutral
atmosphere through MSIS. See Klenzing et al  for examples. This is
modified by the
euv_scale keyword, and is passed through the namelist as
Fejer-Scherliess remains the default model for drifts, but the user may now
input a series of Fourier coefficients to describe the ExB drifts as a function
of local time rather than use the Fejer-Scherliess model. The coefficients are
specified by the
ExB_drifts keyword, which are passed into sami2 through
the new exb.inp file. The fourier coefficient routine replaces the sine wave
triggered when .fejer. = false.
Horizontal Wind Model¶
Sami2py uses the HWM-14 model by default. Users may specify HWM93 or HWM07 for
comparison through the
hwm_model keyword, which is passed through the
namelist as hwm_mod.