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Expand Up @@ -35,43 +35,16 @@ The latest API documentation can be found [here](https://jacobwilliams.github.io
* https://github.com/lanl/RAM-SCB/blob/master/srcExternal/igrf.f
* https://github.com/space-physics/igrf/blob/main/src/igrf/fortran/igrf13.f
* https://web.archive.org/web/20210318113325/https://ccmc.gsfc.nasa.gov/pub/modelweb/
* Model parameters can be computed and plotted online at http://nssdc.gsfc.nasa.gov/space/model/ [broken link]

### Original source

# Original Readme
* National Space Science Data Center, Data set PT-11B, Mar 1996
* Dieter Bilitza, GSFC/NSSDC code 633, Greenbelt,
MD 20771, tel. (301) 286-0190
dbilitza@pop600.gsfc.nasa.gov

National Space Science Data Center Data set PT-11B Mar 1996
=========================================================================

```
NSSDC-Id PT-11B (combines PT-11A, MT-18A, MT-18B, MT-2AA, MT-2AB)
NAME: Models of trapped particle fluxes AE-8 (electrons) and
AP-8 (protons) in inner and outer radiation belts
SOURCE: Dieter Bilitza, GSFC/NSSDC code 633, Greenbelt,
MD 20771, tel. (301) 286-0190
dbilitza@pop600.gsfc.nasa.gov
CONTENT: 12 files *.* blocks
FORTRAN source code:
driver program with interface RADBELT.FOR 48
subroutines, functions TRMFUN.FOR 30
model tables binary and ASCII:
AE-8, epoch 1964, solar minimum AE8MIN.BIN 104
AE-8, epoch 1970, solar maximum AE8MAX.BIN 107
AP-8, epoch 1964, solar minimum AP8MIN.BIN 53
AP-8, epoch 1970, solar maximum AP8MAX.BIN 52
ASCII version of AE8MIN.BIN AE8MIN.ASC 163
ASCII version of AE8MAX.BIN AE8MAX.ASC 168
ASCII version of AP8MIN.BIN AP8MIN.BIN 83
ASCII version of AP8MAX.BIN AP8MAX.BIN 81
user manual with examples RADBELT.LOG 48
This file AAAREADME.DOC 9
```

### BRIEF DESCRIPTION:
### Brief description

These empirical models describe the differential or
integral, omnidirectional fluxes of electrons (AE-8) and protons
Expand All @@ -94,60 +67,44 @@ interpolating in energy (subroutine TRARA1) and in L * B/B0 space (TRARA2).
The program RADBELT produces tables of integral or differential fluxes
for different energies varying with L or B/B0.

The coefficient files are provided in VAX/VMS binary (*.bin) and
ASCII (*.asc) format. For all systems other than VMS the use of the ASCII
files is recommended. If using the ASCII coefficient one needs to slightly
modify the RADBELT.FOR program as described in a comment statement in
RADBELT (this comments are found after the OPEN statement for the coefficient
file).
The coefficient files are provided in ASCII (*.asc) format:

Description | Filename | Size (KB)
--- | --- | ---
AE-8, epoch 1970, solar maximum | ae8max.asc | 84
AE-8, epoch 1964, solar minimum | ae8min.asc | 81
AP-8, epoch 1970, solar maximum | ap8max.asc | 101
AP-8, epoch 1964, solar minimum | ap8min.asc | 102

In March 1995 the earlier used compressed model maps AP8MIC and AP8MAC
were replaced with the full maps AP8MIN/MAX with the help of D. Heynderickx
(BIRA, Brussel, Belgium) and A. Beliaev (INP/MSU, Moscow, Russia). Heynderickx
and Beliaev (1995) had found and corrected a small error in the AP8MIN map;
two lines had been exchanged.

### AVAILABILITY:

(1) FORTRAN source code from this directory.
(2) Model parameters can be computed and plotted online at http://nssdc.gsfc.nasa.gov/space/model/ .
### References

### REFERENCES:

G.W. Singley, and J.I. Vette, The AE-4 Model of the Outer Radiation
* G.W. Singley, and J.I. Vette, The AE-4 Model of the Outer Radiation
Zone Electron Environment, NSSDC/WDC-A-R&S 72-06, 1972.

M.J. Teague, and J.I. Vette, A Model of the Trapped Electron
* M.J. Teague, and J.I. Vette, A Model of the Trapped Electron
Population for Solar Minimum (AE-5), NSSDC/WDC-A-R&S 74-03, 1974.

M.J. Teague, K.W. Chan, and J.I. Vette, AE-6: A Model Environment
* M.J. Teague, K.W. Chan, and J.I. Vette, AE-6: A Model Environment
of Trapped Electrons for Solar Maximum, NSSDC/WDC-A-R&S 76-04, 1976

D.W. Sawyer, and J.I. Vette, AP-8 Trapped Proton Environment for
* D.W. Sawyer, and J.I. Vette, AP-8 Trapped Proton Environment for
Solar Maximum and Minimum, NSSDC/WDC-A-R&S 76-06, 1976.

J.I. Vette, K.W. Chan, and M.J. Teague, Problems in Modeling the
* J.I. Vette, K.W. Chan, and M.J. Teague, Problems in Modeling the
Earth's Trapped Radiation Environment, AFGL-TR-78-0130, 1978.

K.W. Chan, M.J. Teague, N.J. Schofield, and J.I. Vette, Modeling of
* K.W. Chan, M.J. Teague, N.J. Schofield, and J.I. Vette, Modeling of
Electron Time Variation in the Radiation Belts, p. 121-149, in:
Quantitative Modeling of Magnetospheric Processes, W.P. Olson
(ed.), geophysical monograph 21, American Geophysical Union, 1979.

M.T. Teague, N.J. Schofield, K.W. Chan, and J.I. Vette, A Study of
* M.T. Teague, N.J. Schofield, K.W. Chan, and J.I. Vette, A Study of
Inner Zone Electron Data and their Comparison with Trapped
Radiation Models, NSSDC/WDC-A-R&S 79-06, 1979.

J.I. Vette, The AE-8 Trapped Electron Model Environment,
* J.I. Vette, The AE-8 Trapped Electron Model Environment,
NSSDC/WDC-A-R&S 91-24, 1991.

J.I. Vette, The NASA/National Space Science Data Center Trapped
* J.I. Vette, The NASA/National Space Science Data Center Trapped
Radiation Environment Model Program (1964-1991), NSSDC/WDC-A-R&S
91-29, 1991.

(most of these references are available from NSSDC)

D. Heynderickx and A. Beliaev, J. Spacecraft and Rockets 32, 190-192, 1995.

National Space Science Data Center Data set PT-11B Mar 1996
=========================================================================
* D. Heynderickx and A. Beliaev, J. Spacecraft and Rockets 32, 190-192, 1995.

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