n_ice_warren08

 N_ICE_WARREN08   Complex refractive index for ice

    This parameterisation is a compilation and merge of data across the EM
    spectrum. The valid wavelength range is 44 nm to 2 m. The data are
    valid for 266 K, no temperature variation is included.

    See further:  Warren, S. G., and R. E. Brandt (2008), Optical 
    constants of ice from the ultraviolet to the microwave: A revised 
    compilation. J. Geophys. Res., 113, D14220, doi:10.1029/2007JD009744.

 FORMAT   n = n_ice_warren08( lambda )
        
 OUT   n        Complex refractive index
 IN    lambda   Vector of wavelengths [m]

0001 % N_ICE_WARREN08   Complex refractive index for ice
0002 %
0003 %    This parameterisation is a compilation and merge of data across the EM
0004 %    spectrum. The valid wavelength range is 44 nm to 2 m. The data are
0005 %    valid for 266 K, no temperature variation is included.
0006 %
0007 %    See further:  Warren, S. G., and R. E. Brandt (2008), Optical
0008 %    constants of ice from the ultraviolet to the microwave: A revised
0009 %    compilation. J. Geophys. Res., 113, D14220, doi:10.1029/2007JD009744.
0010 %
0011 % FORMAT   n = n_ice_warren08( lambda )
0012 %
0013 % OUT   n        Complex refractive index
0014 % IN    lambda   Vector of wavelengths [m]
0015 
0016 % 2013-11-29   Created by Patrick Eriksson.
0017 
0018 
0019 function n = n_ice_warren08( lambda )
0020   
0021 % la [um], real, imag
0022 dat = [
0023 4.430E-002    0.8228  1.640E-001
0024 4.510E-002    0.8250  1.730E-001
0025 4.590E-002    0.8255  1.830E-001
0026 4.680E-002    0.8258  1.950E-001
0027 4.770E-002    0.8263  2.080E-001
0028 4.860E-002    0.8281  2.230E-001
0029 4.960E-002    0.8347  2.400E-001
0030 5.060E-002    0.8428  2.500E-001
0031 5.170E-002    0.8483  2.590E-001
0032 5.280E-002    0.8505  2.680E-001
0033 5.390E-002    0.8497  2.790E-001
0034 5.510E-002    0.8489  2.970E-001
0035 5.640E-002    0.8519  3.190E-001
0036 5.770E-002    0.8566  3.400E-001
0037 5.900E-002    0.8647  3.660E-001
0038 6.050E-002    0.8797  3.920E-001
0039 6.200E-002    0.8970  4.160E-001
0040 6.360E-002    0.9173  4.400E-001
0041 6.530E-002    0.9400  4.640E-001
0042 6.700E-002    0.9679  4.920E-001
0043 6.890E-002    1.0093  5.170E-001
0044 7.080E-002    1.0536  5.280E-001
0045 7.290E-002    1.0986  5.330E-001
0046 7.380E-002    1.1183  5.340E-001
0047 7.510E-002    1.1449  5.310E-001
0048 7.750E-002    1.1885  5.240E-001
0049 8.000E-002    1.2273  5.100E-001
0050 8.270E-002    1.2629  5.000E-001
0051 8.550E-002    1.3117  4.990E-001
0052 8.860E-002    1.3807  4.680E-001
0053 9.180E-002    1.4091  3.800E-001
0054 9.300E-002    1.4028  3.600E-001
0055 9.540E-002    1.3948  3.390E-001
0056 9.920E-002    1.3964  3.180E-001
0057 1.033E-001    1.4047  2.910E-001
0058 1.078E-001    1.3981  2.510E-001
0059 1.100E-001    1.3886  2.440E-001
0060 1.127E-001    1.3806  2.390E-001
0061 1.140E-001    1.3772  2.390E-001
0062 1.181E-001    1.3783  2.440E-001
0063 1.210E-001    1.3929  2.470E-001
0064 1.240E-001    1.4061  2.240E-001
0065 1.272E-001    1.3999  1.950E-001
0066 1.295E-001    1.3777  1.740E-001
0067 1.305E-001    1.3607  1.720E-001
0068 1.319E-001    1.3389  1.800E-001
0069 1.333E-001    1.3210  1.940E-001
0070 1.348E-001    1.3030  2.130E-001
0071 1.362E-001    1.2871  2.430E-001
0072 1.370E-001    1.2849  2.710E-001
0073 1.378E-001    1.2851  2.890E-001
0074 1.387E-001    1.2970  3.340E-001
0075 1.393E-001    1.3151  3.440E-001
0076 1.409E-001    1.3575  3.820E-001
0077 1.425E-001    1.4130  4.010E-001
0078 1.435E-001    1.4525  4.065E-001
0079 1.442E-001    1.4845  4.050E-001
0080 1.450E-001    1.5157  3.890E-001
0081 1.459E-001    1.5484  3.770E-001
0082 1.468E-001    1.5729  3.450E-001
0083 1.476E-001    1.5915  3.320E-001
0084 1.480E-001    1.6021  3.150E-001
0085 1.485E-001    1.6077  2.980E-001
0086 1.494E-001    1.6156  2.740E-001
0087 1.512E-001    1.6220  2.280E-001
0088 1.531E-001    1.6311  1.980E-001
0089 1.540E-001    1.6345  1.720E-001
0090 1.550E-001    1.6363  1.560E-001
0091 1.569E-001    1.6353  1.100E-001
0092 1.580E-001    1.6309  8.300E-002
0093 1.589E-001    1.6214  5.800E-002
0094 1.610E-001    1.5818  2.200E-002
0095 1.630E-001    1.5482  8.473E-003
0096 1.650E-001    1.5225  3.263E-003
0097 1.670E-001    1.5027  1.256E-003
0098 1.690E-001    1.4870  4.837E-004
0099 1.710E-001    1.4743  1.862E-004
0100 1.730E-001    1.4635  7.165E-005
0101 1.750E-001    1.4543  2.757E-005
0102 1.770E-001    1.4462  1.061E-005
0103 1.790E-001    1.4390  4.081E-006
0104 1.810E-001    1.4326  1.570E-006
0105 1.830E-001    1.4268  5.403E-007
0106 1.850E-001    1.4215  1.829E-007
0107 1.870E-001    1.4167  6.218E-008
0108 1.890E-001    1.4122  2.113E-008
0109 1.910E-001    1.4081  7.181E-009
0110 1.930E-001    1.4043  2.440E-009
0111 1.950E-001    1.4007  8.289E-010
0112 1.970E-001    1.3974  2.816E-010
0113 1.990E-001    1.3943  9.565E-011
0114 2.010E-001    1.3914  3.249E-011
0115 2.019E-001    1.3901  2.0E-011
0116 2.100E-001    1.3801  2.0E-011
0117 2.500E-001    1.3509  2.0E-011
0118 3.000E-001    1.3339  2.0E-011
0119 3.500E-001    1.3249  2.0E-011
0120 3.900E-001    1.3203  2.0E-011
0121 4.000E-001    1.3194  2.365E-011
0122 4.100E-001    1.3185  2.669E-011
0123 4.200E-001    1.3177  3.135E-011
0124 4.300E-001    1.3170  4.140E-011
0125 4.400E-001    1.3163  6.268E-011
0126 4.500E-001    1.3157  9.239E-011
0127 4.600E-001    1.3151  1.325E-010
0128 4.700E-001    1.3145  1.956E-010
0129 4.800E-001    1.3140  2.861E-010
0130 4.900E-001    1.3135  4.172E-010
0131 5.000E-001    1.3130  5.889E-010
0132 5.100E-001    1.3126  8.036E-010
0133 5.200E-001    1.3121  1.076E-009
0134 5.300E-001    1.3117  1.409E-009
0135 5.400E-001    1.3114  1.813E-009
0136 5.500E-001    1.3110  2.289E-009
0137 5.600E-001    1.3106  2.839E-009
0138 5.700E-001    1.3103  3.461E-009
0139 5.800E-001    1.3100  4.159E-009
0140 5.900E-001    1.3097  4.930E-009
0141 6.000E-001    1.3094  5.730E-009
0142 6.100E-001    1.3091  6.890E-009
0143 6.200E-001    1.3088  8.580E-009
0144 6.300E-001    1.3085  1.040E-008
0145 6.400E-001    1.3083  1.220E-008
0146 6.500E-001    1.3080  1.430E-008
0147 6.600E-001    1.3078  1.660E-008
0148 6.700E-001    1.3076  1.890E-008
0149 6.800E-001    1.3073  2.090E-008
0150 6.900E-001    1.3071  2.400E-008
0151 7.000E-001    1.3069  2.900E-008
0152 7.100E-001    1.3067  3.440E-008
0153 7.200E-001    1.3065  4.030E-008
0154 7.300E-001    1.3062  4.300E-008
0155 7.400E-001    1.3060  4.920E-008
0156 7.500E-001    1.3059  5.870E-008
0157 7.600E-001    1.3057  7.080E-008
0158 7.700E-001    1.3055  8.580E-008
0159 7.800E-001    1.3053  1.020E-007
0160 7.900E-001    1.3051  1.180E-007
0161 8.000E-001    1.3049  1.340E-007
0162 8.100E-001    1.3047  1.400E-007
0163 8.200E-001    1.3046  1.430E-007
0164 8.300E-001    1.3044  1.450E-007
0165 8.400E-001    1.3042  1.510E-007
0166 8.500E-001    1.3040  1.830E-007
0167 8.600E-001    1.3039  2.150E-007
0168 8.700E-001    1.3037  2.650E-007
0169 8.800E-001    1.3035  3.350E-007
0170 8.900E-001    1.3033  3.920E-007
0171 9.000E-001    1.3032  4.200E-007
0172 9.100E-001    1.3030  4.440E-007
0173 9.200E-001    1.3028  4.740E-007
0174 9.300E-001    1.3027  5.110E-007
0175 9.400E-001    1.3025  5.530E-007
0176 9.500E-001    1.3023  6.020E-007
0177 9.600E-001    1.3022  7.550E-007
0178 9.700E-001    1.3020  9.260E-007
0179 9.800E-001    1.3019  1.120E-006
0180 9.900E-001    1.3017  1.330E-006
0181 1.000E+000    1.3015  1.620E-006
0182 1.010E+000    1.3014  2.000E-006
0183 1.020E+000    1.3012  2.250E-006
0184 1.030E+000    1.3010  2.330E-006
0185 1.040E+000    1.3009  2.330E-006
0186 1.050E+000    1.3007  2.170E-006
0187 1.060E+000    1.3005  1.960E-006
0188 1.070E+000    1.3003  1.810E-006
0189 1.080E+000    1.3002  1.740E-006
0190 1.090E+000    1.3000  1.730E-006
0191 1.100E+000    1.2998  1.700E-006
0192 1.110E+000    1.2997  1.760E-006
0193 1.120E+000    1.2995  1.820E-006
0194 1.130E+000    1.2993  2.040E-006
0195 1.140E+000    1.2991  2.250E-006
0196 1.150E+000    1.2990  2.290E-006
0197 1.160E+000    1.2988  3.040E-006
0198 1.170E+000    1.2986  3.840E-006
0199 1.180E+000    1.2984  4.770E-006
0200 1.190E+000    1.2982  5.760E-006
0201 1.200E+000    1.2980  6.710E-006
0202 1.210E+000    1.2979  8.660E-006
0203 1.220E+000    1.2977  1.020E-005
0204 1.230E+000    1.2975  1.130E-005
0205 1.240E+000    1.2973  1.220E-005
0206 1.250E+000    1.2971  1.290E-005
0207 1.260E+000    1.2969  1.320E-005
0208 1.270E+000    1.2967  1.350E-005
0209 1.280E+000    1.2965  1.330E-005
0210 1.290E+000    1.2963  1.320E-005
0211 1.300E+000    1.2961  1.320E-005
0212 1.310E+000    1.2959  1.310E-005
0213 1.320E+000    1.2957  1.320E-005
0214 1.330E+000    1.2955  1.320E-005
0215 1.340E+000    1.2953  1.340E-005
0216 1.350E+000    1.2951  1.390E-005
0217 1.360E+000    1.2949  1.420E-005
0218 1.370E+000    1.2946  1.480E-005
0219 1.380E+000    1.2944  1.580E-005
0220 1.390E+000    1.2941  1.740E-005
0221 1.400E+000    1.2939  1.980E-005
0222 1.410E+000    1.2937  3.442E-005
0223 1.420E+000    1.2934  5.959E-005
0224 1.430E+000    1.2931  1.028E-004
0225 1.440E+000    1.2929  1.516E-004
0226 1.449E+000    1.2927  2.030E-004
0227 1.460E+000    1.2924  2.942E-004
0228 1.471E+000    1.2921  3.987E-004
0229 1.481E+000    1.2920  4.941E-004
0230 1.493E+000    1.2918  5.532E-004
0231 1.504E+000    1.2916  5.373E-004
0232 1.515E+000    1.2914  5.143E-004
0233 1.527E+000    1.2912  4.908E-004
0234 1.538E+000    1.2909  4.594E-004
0235 1.563E+000    1.2903  3.858E-004
0236 1.587E+000    1.2897  3.105E-004
0237 1.613E+000    1.2890  2.659E-004
0238 1.650E+000    1.2879  2.361E-004
0239 1.680E+000    1.2870  2.046E-004
0240 1.700E+000    1.2863  1.875E-004
0241 1.730E+000    1.2853  1.650E-004
0242 1.760E+000    1.2843  1.522E-004
0243 1.800E+000    1.2828  1.411E-004
0244 1.830E+000    1.2816  1.302E-004
0245 1.840E+000    1.2811  1.310E-004
0246 1.850E+000    1.2807  1.339E-004
0247 1.855E+000    1.2805  1.377E-004
0248 1.860E+000    1.2802  1.432E-004
0249 1.870E+000    1.2797  1.632E-004
0250 1.890E+000    1.2788  2.566E-004
0251 1.905E+000    1.2780  4.081E-004
0252 1.923E+000    1.2771  7.060E-004
0253 1.942E+000    1.2762  1.108E-003
0254 1.961E+000    1.2756  1.442E-003
0255 1.980E+000    1.2750  1.614E-003
0256 2.000E+000    1.2744  1.640E-003
0257 2.020E+000    1.2736  1.566E-003
0258 2.041E+000    1.2728  1.458E-003
0259 2.062E+000    1.2718  1.267E-003
0260 2.083E+000    1.2707  1.023E-003
0261 2.105E+000    1.2694  7.586E-004
0262 2.130E+000    1.2677  5.255E-004
0263 2.150E+000    1.2663  4.025E-004
0264 2.170E+000    1.2648  3.235E-004
0265 2.190E+000    1.2633  2.707E-004
0266 2.220E+000    1.2609  2.228E-004
0267 2.240E+000    1.2591  2.037E-004
0268 2.245E+000    1.2587  2.026E-004
0269 2.250E+000    1.2582  2.035E-004
0270 2.260E+000    1.2573  2.078E-004
0271 2.270E+000    1.2564  2.171E-004
0272 2.290E+000    1.2545  2.538E-004
0273 2.310E+000    1.2525  3.138E-004
0274 2.330E+000    1.2504  3.858E-004
0275 2.350E+000    1.2482  4.591E-004
0276 2.370E+000    1.2459  5.187E-004
0277 2.390E+000    1.2435  5.605E-004
0278 2.410E+000    1.2409  5.956E-004
0279 2.430E+000    1.2382  6.259E-004
0280 2.460E+000    1.2337  6.820E-004
0281 2.500E+000    1.2270  7.530E-004
0282 2.520E+000    1.2232  7.685E-004
0283 2.550E+000    1.2169  7.647E-004
0284 2.565E+000    1.2135  7.473E-004
0285 2.580E+000    1.2097  7.392E-004
0286 2.590E+000    1.2071  7.437E-004
0287 2.600E+000    1.2043  7.543E-004
0288 2.620E+000    1.1983  8.059E-004
0289 2.675E+000    1.1776  1.367E-003
0290 2.725E+000    1.1507  3.508E-003
0291 2.778E+000    1.1083  1.346E-002
0292 2.817E+000    1.0657  3.245E-002
0293 2.833E+000    1.0453  4.572E-002
0294 2.849E+000    1.0236  6.287E-002
0295 2.865E+000    1.0001  8.548E-002
0296 2.882E+000    0.9747  1.198E-001
0297 2.899E+000    0.9563  1.690E-001
0298 2.915E+000    0.9538  2.210E-001
0299 2.933E+000    0.9678  2.760E-001
0300 2.950E+000    0.9873  3.120E-001
0301 2.967E+000    1.0026  3.470E-001
0302 2.985E+000    1.0180  3.880E-001
0303 3.003E+000    1.0390  4.380E-001
0304 3.021E+000    1.0722  4.930E-001
0305 3.040E+000    1.1259  5.540E-001
0306 3.058E+000    1.2089  6.120E-001
0307 3.077E+000    1.3215  6.250E-001
0308 3.096E+000    1.4225  5.930E-001
0309 3.115E+000    1.4933  5.390E-001
0310 3.135E+000    1.5478  4.910E-001
0311 3.155E+000    1.5970  4.380E-001
0312 3.175E+000    1.6336  3.720E-001
0313 3.195E+000    1.6477  3.000E-001
0314 3.215E+000    1.6405  2.380E-001
0315 3.236E+000    1.6248  1.930E-001
0316 3.257E+000    1.6108  1.580E-001
0317 3.279E+000    1.5905  1.210E-001
0318 3.300E+000    1.5714  1.030E-001
0319 3.322E+000    1.5559  8.360E-002
0320 3.345E+000    1.5396  6.680E-002
0321 3.367E+000    1.5241  5.312E-002
0322 3.390E+000    1.5086  4.286E-002
0323 3.413E+000    1.4949  3.523E-002
0324 3.436E+000    1.4827  2.887E-002
0325 3.460E+000    1.4710  2.347E-002
0326 3.484E+000    1.4604  1.921E-002
0327 3.509E+000    1.4502  1.586E-002
0328 3.534E+000    1.4411  1.326E-002
0329 3.559E+000    1.4328  1.130E-002
0330 3.624E+000    1.4146  8.146E-003
0331 3.732E+000    1.3924  6.672E-003
0332 3.775E+000    1.3850  6.966E-003
0333 3.847E+000    1.3750  8.248E-003
0334 3.969E+000    1.3623  1.112E-002
0335 4.099E+000    1.3526  1.471E-002
0336 4.239E+000    1.3447  1.867E-002
0337 4.348E+000    1.3406  2.411E-002
0338 4.387E+000    1.3401  2.656E-002
0339 4.444E+000    1.3412  2.990E-002
0340 4.505E+000    1.3444  3.179E-002
0341 4.547E+000    1.3473  3.090E-002
0342 4.560E+000    1.3482  3.007E-002
0343 4.580E+000    1.3491  2.883E-002
0344 4.719E+000    1.3470  1.940E-002
0345 4.904E+000    1.3379  1.347E-002
0346 5.000E+000    1.3325  1.240E-002
0347 5.100E+000    1.3268  1.220E-002
0348 5.200E+000    1.3212  1.302E-002
0349 5.263E+000    1.3176  1.380E-002
0350 5.400E+000    1.3100  1.683E-002
0351 5.556E+000    1.3013  2.232E-002
0352 5.714E+000    1.2933  3.256E-002
0353 5.747E+000    1.2917  3.539E-002
0354 5.780E+000    1.2906  3.883E-002
0355 5.814E+000    1.2902  4.270E-002
0356 5.848E+000    1.2904  4.643E-002
0357 5.882E+000    1.2915  5.045E-002
0358 6.061E+000    1.3015  6.439E-002
0359 6.135E+000    1.3083  6.560E-002
0360 6.250E+000    1.3152  6.360E-002
0361 6.289E+000    1.3167  6.265E-002
0362 6.329E+000    1.3178  6.170E-002
0363 6.369E+000    1.3187  6.101E-002
0364 6.410E+000    1.3194  6.031E-002
0365 6.452E+000    1.3201  5.964E-002
0366 6.494E+000    1.3207  5.899E-002
0367 6.579E+000    1.3214  5.780E-002
0368 6.667E+000    1.3219  5.700E-002
0369 6.757E+000    1.3229  5.680E-002
0370 6.897E+000    1.3242  5.428E-002
0371 7.042E+000    1.3244  5.161E-002
0372 7.143E+000    1.3236  4.940E-002
0373 7.246E+000    1.3229  4.840E-002
0374 7.353E+000    1.3218  4.600E-002
0375 7.463E+000    1.3200  4.440E-002
0376 7.576E+000    1.3183  4.290E-002
0377 7.692E+000    1.3158  4.041E-002
0378 7.812E+000    1.3123  3.911E-002
0379 7.937E+000    1.3086  3.819E-002
0380 8.065E+000    1.3047  3.760E-002
0381 8.197E+000    1.3007  3.724E-002
0382 8.333E+000    1.2964  3.700E-002
0383 8.475E+000    1.2917  3.677E-002
0384 8.696E+000    1.2835  3.654E-002
0385 8.929E+000    1.2735  3.664E-002
0386 9.091E+000    1.2655  3.706E-002
0387 9.259E+000    1.2561  3.789E-002
0388 9.524E+000    1.2387  4.026E-002
0389 9.804E+000    1.2151  4.450E-002
0390 1.000E+001    1.1926  5.008E-002
0391 1.020E+001    1.1659  6.461E-002
0392 1.031E+001    1.1501  7.500E-002
0393 1.042E+001    1.1323  8.800E-002
0394 1.053E+001    1.1136  1.080E-001
0395 1.064E+001    1.0971  1.340E-001
0396 1.075E+001    1.0867  1.680E-001
0397 1.087E+001    1.0833  2.040E-001
0398 1.100E+001    1.0886  2.480E-001
0399 1.111E+001    1.1023  2.800E-001
0400 1.136E+001    1.1439  3.410E-001
0401 1.163E+001    1.1983  3.790E-001
0402 1.190E+001    1.2546  4.090E-001
0403 1.220E+001    1.3194  4.220E-001
0404 1.250E+001    1.3822  4.220E-001
0405 1.282E+001    1.4412  4.030E-001
0406 1.299E+001    1.4683  3.890E-001
0407 1.316E+001    1.4928  3.740E-001
0408 1.333E+001    1.5132  3.540E-001
0409 1.351E+001    1.5300  3.350E-001
0410 1.370E+001    1.5458  3.150E-001
0411 1.389E+001    1.5596  2.940E-001
0412 1.408E+001    1.5701  2.710E-001
0413 1.429E+001    1.5775  2.460E-001
0414 1.471E+001    1.5762  1.980E-001
0415 1.515E+001    1.5637  1.640E-001
0416 1.538E+001    1.5559  1.520E-001
0417 1.563E+001    1.5481  1.420E-001
0418 1.613E+001    1.5353  1.280E-001
0419 1.639E+001    1.5302  1.250E-001
0420 1.667E+001    1.5294  1.230E-001
0421 1.695E+001    1.5306  1.160E-001
0422 1.724E+001    1.5303  1.070E-001
0423 1.818E+001    1.5141  7.900E-002
0424 1.832E+001    1.5104  7.752E-002
0425 1.861E+001    1.5043  7.455E-002
0426 1.887E+001    1.4982  7.200E-002
0427 1.923E+001    1.4939  7.600E-002
0428 1.961E+001    1.4963  7.500E-002
0429 2.000E+001    1.4986  6.700E-002
0430 2.041E+001    1.4956  5.500E-002
0431 2.083E+001    1.4877  4.500E-002
0432 2.222E+001    1.4575  2.900E-002
0433 2.260E+001    1.4486  2.750E-002
0434 2.305E+001    1.4390  2.700E-002
0435 2.360E+001    1.4282  2.730E-002
0436 2.460E+001    1.4102  2.890E-002
0437 2.500E+001    1.4030  3.000E-002
0438 2.600E+001    1.3854  3.400E-002
0439 2.857E+001    1.3404  5.122E-002
0440 3.100E+001    1.2969  8.615E-002
0441 3.333E+001    1.2641  1.348E-001
0442 3.448E+001    1.2530  1.615E-001
0443 3.564E+001    1.2445  1.895E-001
0444 3.700E+001    1.2371  2.227E-001
0445 3.824E+001    1.2317  2.528E-001
0446 3.960E+001    1.2243  2.853E-001
0447 4.114E+001    1.2054  3.240E-001
0448 4.276E+001    1.1742  3.945E-001
0449 4.358E+001    1.1549  4.521E-001
0450 4.458E+001    1.1496  5.535E-001
0451 4.550E+001    1.1853  6.782E-001
0452 4.615E+001    1.2543  7.684E-001
0453 4.671E+001    1.3474  8.254E-001
0454 4.736E+001    1.4725  8.458E-001
0455 4.800E+001    1.5874  8.158E-001
0456 4.878E+001    1.6841  7.414E-001
0457 5.003E+001    1.7505  6.191E-001
0458 5.128E+001    1.7649  5.353E-001
0459 5.275E+001    1.7668  4.780E-001
0460 5.350E+001    1.7687  4.599E-001
0461 5.424E+001    1.7792  4.468E-001
0462 5.500E+001    1.7955  4.214E-001
0463 5.574E+001    1.8052  3.860E-001
0464 5.640E+001    1.8041  3.508E-001
0465 5.700E+001    1.7940  3.196E-001
0466 5.746E+001    1.7805  2.981E-001
0467 5.840E+001    1.7410  2.659E-001
0468 5.929E+001    1.6930  2.569E-001
0469 6.000E+001    1.6610  2.785E-001
0470 6.100E+001    1.6419  3.076E-001
0471 6.125E+001    1.6396  3.146E-001
0472 6.250E+001    1.6372  3.471E-001
0473 6.378E+001    1.6471  3.748E-001
0474 6.467E+001    1.6596  3.902E-001
0475 6.558E+001    1.6754  4.024E-001
0476 6.655E+001    1.6945  4.115E-001
0477 6.760E+001    1.7167  4.167E-001
0478 6.900E+001    1.7466  4.167E-001
0479 7.053E+001    1.7780  4.089E-001
0480 7.300E+001    1.8185  3.830E-001
0481 7.500E+001    1.8419  3.543E-001
0482 7.629E+001    1.8504  3.340E-001
0483 8.000E+001    1.8617  2.944E-001
0484 8.297E+001    1.8669  2.679E-001
0485 8.500E+001    1.8688  2.519E-001
0486 8.680E+001    1.8699  2.390E-001
0487 9.080E+001    1.8698  2.140E-001
0488 9.517E+001    1.8681  1.913E-001
0489 1.000E+002    1.8654  1.706E-001
0490 1.200E+002    1.8499  1.151E-001
0491 1.600E+002    1.8268  6.684E-002
0492 2.100E+002    1.8114  4.282E-002
0493 3.000E+002    1.7989  2.549E-002
0494 5.000E+002    1.7908  1.405E-002
0495 1.300E+003    1.7868  5.173E-003
0496 5.000E+003    1.7861  1.337E-003
0497 1.900E+004    1.7861  3.574E-004
0498 3.900E+004    1.7861  1.839E-004
0499 6.100E+004    1.7861  1.294E-004
0500 8.600E+004    1.7861  1.058E-004
0501 1.100E+005    1.7861  9.675E-005
0502 1.400E+005    1.7861  9.360E-005
0503 1.800E+005    1.7861  9.613E-005
0504 2.400E+005    1.7861  1.066E-004
0505 3.400E+005    1.7861  1.312E-004
0506 5.400E+005    1.7861  1.895E-004
0507 1.000E+006    1.7861  3.348E-004
0508 2.000E+006    1.7861  6.596E-004];
0509 
0510 
0511 % Data and interpolation approach taken from
0512 % http://www.atmos.washington.edu/ice_optical_constants/
0513 
0514 b = interp1( log(dat(:,1)), [dat(:,2),log(dat(:,3))], log(lambda*1e6) );
0515 
0516 n = b(:,1) + i*exp(b(:,2));