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NOAA-SWPC / IPE

Ionosphere Plasmasphere Electrodynamics Model
GNU General Public License v3.0
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N+ and He+ in IPE is not moving with time #14

Closed twfang closed 4 years ago

twfang commented 4 years ago

It appears that the N+ and He+ from IPE do not move with UT. The densities of these species do change with time. They both use subroutine XION in FLIP for the calculation. The missing time dependency in this subroutine needs to be investigated.

N+

Screen Shot 2019-12-05 at 10 21 47 AM

He+

Screen Shot 2019-12-06 at 1 58 48 PM
gmillward commented 4 years ago

I'm working it!!

On Mon, Dec 9, 2019 at 11:05 AM twfang notifications@github.com wrote:

Assigned #14 https://github.com/NOAA-SWPC/IPE/issues/14 to @gmillward https://github.com/gmillward.

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Visiting scientist at NOAA Space Weather Prediction Center Boulder, CO

george.millward@noaa.gov

twfang commented 4 years ago

(From George) Attached plot shows our problematic Te profile (thick black line) Thick red line is what we get after setting N+ and He+ to zero everywhere - order restored.

te_plot

naomimaruyama commented 4 years ago

This is an empirical model of Te based on CHAMP observations which might be helpful for validation.

Screen Shot 2020-01-06 at 13 24 53
gmillward commented 4 years ago

Fixed He+ and N+ ...... they were switched off in IPE (refactor) - new implementation has them solving as chemical equilibrium only (no diffusion)

helium_ions