Level 2 Help for PHOTFIT2_HAPKE_81_LE2

W_SOIL

 
Single-scattering albedo of the soil particles; 
one of the classical Hapke parameter.

MIN_W_SOIL

This parameter gives the absolut lower limit of the single-scattering albedo of the soil particles. It characterizes the efficiency 
of an average particle to scatter and absorb light. 
If a sulution guess falls out-of-bonds then the attemp will be aborted and 
a new guess attempted.

MAX_W_SOIL

This parameter gives the absolut upper limit of the single-scattering albedo of the soil particles. It characterizes the efficiency 
of an average particle to scatter and absorb light. 
If a sulution guess falls out-of-bonds then the attemp will be aborted and 
a new guess attempted.

T_W_SOIL

This parameter gives temperatur for the single-scattering albedo of the soil 
particles. It characterizes the efficiency of an average particle to scatter 
and absorb light. 
This parameter gives the range over which random guesses can be expected to 
vary at first:
    W_SOIL_NEW = T_W_SOIL * tan( PI * ran_num + PI/2 ).
As the system cools the range will constrict gradually :
	T_W_SOIL_NEW_* = T_W_SOIL_OLD_* * scale, 
scale depends of NUMTEN.

H_SHOE

Parameter which characterizes the soil structure (angular width of the 
opposition surge due to shadowing).

MIN_H_SHOE

This parameter gives the absolut lower limit of the parameter which characterizes the soil structure (angular width of the 
opposition surge due to shadowing). 
If a sulution guess falls out-of-bonds then the attemp will be aborted and 
a new guess attempted.

MAX_H_SHOE

This parameter gives the absolut upper limit of the parameter which characterizes the soil structure (angular width of the 
opposition surge due to shadowing). 
If a sulution guess falls out-of-bonds then the attemp will be aborted and 
a new guess attempted.

T_H_SHOE

This parameter gives temperatur for the parameter which characterizes the soil 
structure (angular width of the opposition surge due to shadowing). 
This parameter gives the range over which random guesses can be expected to 
vary at first:
    H_SHOE_NEW = T_H_SHOE * tan( PI * ran_num + PI/2 ).
As the system cools the range will constrict gradually :
	T_H_SHOE_NEW_* = T_H_SHOE_OLD_* * scale, 
scale depends of NUMTEN.

LE1_SOIL

Parameter of the first term of the Legendre-Polynomial soil particle 
phase function.

MIN_LE1_SOIL

This parameter gives the absolut lower limit of the parameter of the first term 
of the Legendre-Polynomial soil particle 
phase function.
If a sulution guess falls out-of-bonds then the attemp will be aborted and 
a new guess attempted.

MAX_LE1_SOIL

This parameter gives the absolut upper limit of the parameter of the first term 
of the Legendre-Polynomial soil particle 
phase function.
If a sulution guess falls out-of-bonds then the attemp will be aborted and 
a new guess attempted.

T_LE1_SOIL

This parameter gives temperatur for the parameter of the first term of the 
Legendre-Polynomial soil particle phase function.
This parameter gives the range over which random guesses can be expected to 
vary at first:
    LE1_SOIL_NEW = T_LE1_SOIL * tan( PI * ran_num + PI/2 ).
As the system cools the range will constrict gradually :
	T_LE1_SOIL_NEW_* = T_LE1_SOILE_OLD_* * scale, 
scale depends of NUMTEN.

LE2_SOIL

Parameter of the second term of the Legendre-Polynomial soil particle 
phase function.

MIN_LE2_SOIL

This parameter gives the absolut lower limit of the parameter of the second 
term of the Legendre-Polynomial soil particle 
phase function.
If a sulution guess falls out-of-bonds then the attemp will be aborted and 
a new guess attempted.

MAX_LE2_SOIL

This parameter gives the absolut upper limit of the parameter of the second 
term of the Legendre-Polynomial soil particle 
phase function.
If a sulution guess falls out-of-bonds then the attemp will be aborted and 
a new guess attempted.

T_LE2_SOIL

This parameter gives temperatur for the parameter of the second term of the 
Legendre-Polynomial soil particle phase function.
This parameter gives the range over which random guesses can be expected to 
vary at first:
    LE2_SOIL_NEW = T_LE2_SOIL * tan( PI * ran_num + PI/2 ).
As the system cools the range will constrict gradually :
	T_LE2_SOIL_NEW_* = T_LE2_SOIL_OLD_* * scale, 
scale depends of NUMTEN.