Nymmik GCR Model
Model API name: nymmik-96-gcr
This models the GCR fluxes assuming that they are time invariant beyond the heliosphere. The temporal variation in the fluxes is attributed to large scale variations in the heliospheric magnetic field. This results in roughly cyclic variations in the GCR spectra with periods of ^11 and ^22 years. The actual modulation of the interstellar GCR spectra is indexed using the Wolf number (this is a count of the number of spots on the sun following an internationally-agreed procedure).
Version: v1
External Input: trajectory
| Input | Value |
|---|---|
| Model name |
sapre
sapre_upload
|
trajectory
|
| Model result name | trajectory |
| Quantity | trajectory |
Input group: gcr / multiplicity: one
| Input | Description | Valid values | Default | Quantity |
|---|---|---|---|---|
| lowestIonSpecies | Lowest ion species to include. |
note: 1-92 |
1 | number |
| highestIonSpecies | Highest ion species to include. |
|
92 | number |
| distanceFromSun | Distance from the Sun. |
|
1.0 | number |
| solarActivity | Flag to determine what solar activity |
0=Mission epoch 1=Solar minimum (May 1996) 2=User defined |
1 | number |
| MQ | MQ |
38=Nymmik (1996) 39=Nymmik (1996) + 1 sigma 40=Nymmik (1996) + 2 sigma |
38 | number |
| useGeomagneticShielding | Include geomagnetic shielding |
0=No 1=Yes |
0 | number |
| arrivalDirection |
Specify arrival direction (only when using geomagnetic shielding).
Used if useGeomagneticShielding == 1 |
0=All directions 1=Vertical only |
0 | number |
| magnetosphereState |
State of the magnetosphere (only when using geomagnetic shielding).
Used if useGeomagneticShielding == 1 |
0=Quiet 1=Stormy |
0 | number |
| method |
Method (only when using geomagnetic shielding).
Used if useGeomagneticShielding == 1 |
0=Stormer with eccentric dipole 1=Smart and Shea (1967) with IGRF 2=Stormer upgrade |
0 | number |
| magneticFieldMoment |
Magnetic field moment.
Only when using geomagnetic shielding. Used if useGeomagneticShielding == 1 |
0=McIlwain 1=Unchanged -1=CREME-86 -2=CREME-96 |
1 | number |
|
Model references
No references