5 integer, parameter :: dp = selected_real_kind(14,300)
7 real, parameter :: m2km = .001 ! meters to km
8 real, parameter :: ppm2vmr = 1.e-6 ! ppm to vmr
9 real, parameter :: o2vmr = .2095 ! o2 vmr
10 real, parameter :: km2cm = 1.e5 ! km to centimeters
11 real, parameter :: m2s = 60. ! minutes to seconds
13 REAL, PARAMETER :: pi = 3.1415926535898
14 REAL, PARAMETER :: radius = 6.371E+3 ! km
15 REAL, PARAMETER :: hc = 6.626068E-34 * 2.99792458E8
16 REAL, PARAMETER :: largest=1.E+36
18 REAL, PARAMETER :: pzero = +10./largest
19 REAL, PARAMETER :: nzero = -10./largest
21 REAL, PARAMETER :: precis = 1.e-7
23 real :: lambda_cutoff ! nm