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SAMI3/1.0/ROR/SUBRATA_KUNDU_061521_IT_2

Run Description

CCMC ROR run for SAMI3 1.0 with RORID SUBRATA_KUNDU_061521_IT_2

Simulation Time:

Simulation Start Time: 2019-12-27T00:00:00Z
Simulation End Time: 2019-12-28T00:00:00Z
Time Step in second: 900
Simulation Time Description:
Simulation Time Caveats:

Temporal Dependence (whether the outputs of the simulation code are time-dependent?): true

Regions:

Earth.NearSurface.Ionosphere

Simulation Domain :

Contacts :

SUBRATA.KUNDU, ModelUser

List of Run Input Parameter Grouping and their associated properties :

Name Description Caveats Properties
All settings for SAMI3 model
All settings used to run SAMI3 model
Name Description Caveats Units Default Value or Actual Value Valid Min Valid Max
fmtout
fmtout
False
maxstep
maximum number of time steps
- for a normal run (e.g., 48 hrs), this is a large integer, e.g., maxstep = 10000000
- for testing/debugging it can be set to a smaller number, e.g., maxstep = 10
1000000
hrmax
runtime (hrs)
- maximum runtime is hrmax = 168 (7 days)
- nominal minimum runtime is hrmax = 36
(it takes ∼ 12 hrs for the ionosphere to develop)
48.
dthr
output cadence (hrs)
- nominal output cadence is dthr = 0.25 (15 min)
- for testing/debugging it can be reduced to output data more often
hours 0.25
hrpr
time data starts to be output
- nominally hrpr = 0 and data is output from beginning of the run
- alternatively, if hrmax = 48 and hrpr = 24, data is output starting after the first day
(this reduces the size of the output files)
hours 24.
dt0
maximum time step (sec)
- should be in the range 2 - 8 sec
- the larger dt0, the faster the code runs in general
- however, depending on geophysical conditions and the grid, the code can give un- physical
results if initially too large (e.g., dt0 = 8)
seconds 30.
grad_in
grad_in
300.
glat_in
glat_in
0.
glon_in
glon_in
0.
fejer
False for Sinusoidal Model and True for Fejer/ Scherliess Empirical Model
True
rmin
used to specify grid along the magnetic field
- best to leave rmin = 90
150
rmax
rmax
20000
altmin
used to specify grid along the magnetic field
- best to leave altmin = 85 km
85
f10.7_avg
F10.7A
- 81 day average of F10.7
71
f10.7
F10.7
- solar radio flux at 10.7 cm
- used as a measure of solar activity
70
Ap
Ap index
- The Ap index is a daily measure of magnetic activity
2
year
Year of the event
2019
day
Day-of-the-year (DOY) of the event
361
mmass
mass number used in nrlmsise00
- mmass = 48 (do not change)
48
nion1
first ion specie
- nion1 = 1 (H+) (do not change)
1
nion2
last ion specie
- nion1 = 7 (N+) (do not change)
7
hrinit
starting time (UT hrs)
- nominal value hrinit = 0 (i.e., midnight GMT) - best not to change
UT hours 0.
tvn0
modifies the magnitude of the neutral wind speed
- nominally tvn0 = 1
- use caution when changing, e.g., tvn0 = 2 will double the neutral wind speed
1
tvexb0
modifies the magnitude of the E × B velocity
- nominally tvexb0 = 1
- use caution when changing, e.g., tvexb0 = 0 will set the E × B drift to 0
1.
ver
Max ExB
veh
not used (leave 0)
gams
adjusts grid spacing along the magnetic field line
- best to leave gams = .1
3
gamp
adjusts grid spacing in latitude
- best to leave gams = 2.5
3
snn
multiplier for neutral densities
- the 7 entries correspond to the 7 neutral species in ‘parameter mod.f90’
- for example, if snn = 1.,2.,1.,1.,1.,1.,1., then the oxygen neutral density is doubled
1.,1.,1.,1.,1.,1.,1.
stn
multiplier for the neutral temperature
- this will change the ion temperatures because of ion-neutral coupling - it will not change the scale height of the neutrals
1.
denmin
minimum ion density allowed (cm−3)
- best to leave denmin = 1.e-6
1.e-6
alt_crit
alt_crit
150.
cqe
cqe
6e-14

Run Access Information :

Keyword(s) :

TEC

Linked to Parent Spase Resource(s) (example: SimulationModel) :

spase://CCMC/SimulationModel/SAMI3/1.0

List of Publications Referencing this Run :

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