#SUBSTANCE=Grímsvötn ash #DESCRIPTION= Fine ash (dark colour) from the 22th May 2011 eruption collected by K. Kristian #REFERENCE = A. Deguine, D. Petitprez, L. Clarisse, S. Gudmundsson, V. Outes, G. Villarosa, and H. Herbin, "Complex refractive index of volcanic ash aerosol in the infrared, visible, and ultraviolet," Appl. Opt. 59, 884-895 (2020). #DOI =10.6084/m9.figshare.9873131.v1 #FORMAT = Wavn n k 690 1.854 0.3695 695 1.853 0.3621 700 1.854 0.3648 705 1.852 0.3638 710 1.85 0.3615 715 1.85 0.3592 720 1.85 0.3565 725 1.85 0.3548 730 1.85 0.3522 735 1.85 0.3503 740 1.851 0.3472 745 1.852 0.3445 750 1.853 0.342 755 1.853 0.338 760 1.854 0.3323 765 1.858 0.326 770 1.863 0.3202 775 1.868 0.3149 780 1.875 0.3081 785 1.883 0.3008 790 1.893 0.2933 795 1.906 0.2852 800 1.923 0.2783 805 1.943 0.2718 810 1.966 0.2699 815 1.992 0.2677 820 2.022 0.2736 825 2.053 0.2821 830 2.085 0.2971 835 2.116 0.3165 840 2.148 0.3418 845 2.178 0.3747 850 2.204 0.4121 855 2.227 0.4554 860 2.245 0.5046 865 2.256 0.5575 870 2.259 0.616 875 2.252 0.6727 880 2.239 0.7294 885 2.217 0.7854 890 2.187 0.8357 895 2.152 0.882 900 2.112 0.9221 905 2.069 0.9565 910 2.024 0.9849 915 1.978 1.008 920 1.932 1.026 925 1.886 1.038 930 1.843 1.047 935 1.799 1.054 940 1.757 1.056 945 1.718 1.055 950 1.68 1.053 955 1.643 1.05 960 1.608 1.044 965 1.573 1.038 970 1.54 1.028 975 1.51 1.02 980 1.479 1.01 985 1.449 0.9994 990 1.42 0.9878 995 1.392 0.9746 1000 1.365 0.9606 1005 1.339 0.9462 1010 1.314 0.9303 1015 1.29 0.9141 1020 1.267 0.8963 1025 1.245 0.8785 1030 1.224 0.8599 1035 1.204 0.8401 1040 1.186 0.8204 1045 1.168 0.7998 1050 1.152 0.7787 1055 1.137 0.7573 1060 1.123 0.7357 1065 1.111 0.7138 1070 1.1 0.6925 1075 1.091 0.6711 1080 1.082 0.6499 1085 1.074 0.6291 1090 1.067 0.6085 1095 1.061 0.5885 1100 1.056 0.5689 1105 1.052 0.5498 1110 1.048 0.5315 1115 1.044 0.5137 1120 1.04 0.4964 1125 1.037 0.4794 1130 1.034 0.4626 1135 1.03 0.4463 1140 1.026 0.4299 1145 1.022 0.4132 1150 1.018 0.396 1155 1.014 0.3783 1160 1.011 0.3598 1165 1.007 0.3406 1170 1.004 0.3203 1175 1.002 0.2989 1180 1.001 0.2768 1185 1.002 0.2538 1190 1.005 0.2301 1195 1.009 0.2062 1200 1.016 0.1825 1205 1.025 0.1597 1210 1.037 0.1378 1215 1.05 0.1173 1220 1.065 0.09897 1225 1.08 0.08246 1230 1.097 0.06828 1235 1.114 0.05629 1240 1.131 0.04628 1245 1.147 0.03813 1250 1.164 0.03165 1255 1.179 0.02682 1270 1.218 0.01846 1285 1.25 0.01483 1300 1.275 0.01255 1315 1.297 0.01068 1330 1.316 0.00932 1345 1.332 0.00828 1360 1.347 0.00768 1375 1.361 0.00727 1390 1.373 0.00702 1405 1.384 0.00688 1420 1.394 0.00677 1435 1.403 0.00675 1450 1.411 0.00671 1465 1.419 0.00666 1480 1.426 0.00639 1495 1.433 0.00583 1510 1.439 0.0058 1525 1.445 0.00554 1540 1.451 0.00564 1555 1.456 0.00599 1570 1.462 0.00609 1585 1.466 0.0064 1600 1.471 0.00735 1615 1.475 0.008 1630 1.478 0.0085 1645 1.48 0.00844 1660 1.483 0.00756 1675 1.486 0.00686 1690 1.489 0.00628 1705 1.493 0.00584 1720 1.496 0.00559 1735 1.499 0.0053 1750 1.501 0.00507 1765 1.504 0.00509 1780 1.507 0.00501 1795 1.509 0.00505 1810 1.511 0.00492 1825 1.513 0.00477 1840 1.516 0.00456 1880 1.521 0.00418 1920 1.526 0.00389 1960 1.53 0.00367 2000 1.535 0.00331 2040 1.539 0.00302 2080 1.542 0.00281 2120 1.546 0.00267 2160 1.549 0.00262 2200 1.552 0.00259 2240 1.555 0.00246 2280 1.557 0.00261 2320 1.56 0.00315 2360 1.561 0.00452 2400 1.563 0.00321 2440 1.565 0.00301 2480 1.567 0.00302 2520 1.568 0.00304 2560 1.57 0.00314 2600 1.571 0.00309 2640 1.573 0.00323 2680 1.574 0.00304 2720 1.575 0.00314 2760 1.576 0.00331 2800 1.577 0.00286 2840 1.578 0.00295 2880 1.579 0.00278 2920 1.58 0.00276 2960 1.581 0.00274 3000 1.582 0.00272 10000 1.607 0.00148 10500 1.607 0.00139 11000 1.608 0.00126 11500 1.608 0.00108 12000 1.608 0.0009351 12500 1.608 0.0008291 13000 1.608 0.0007539 13500 1.608 0.0007026 14000 1.609 0.0006689 14500 1.609 0.0006475 15000 1.609 0.0006333 15500 1.609 0.0006242 16000 1.609 0.0006185 16500 1.609 0.0006133 17000 1.609 0.0006088 17500 1.609 0.0006035 18000 1.609 0.0005971 18500 1.609 0.0005902 19000 1.609 0.0005824 19500 1.609 0.0005743 20000 1.609 0.0005657 20500 1.609 0.0005571 21000 1.609 0.0005484 21500 1.609 0.00054 22000 1.609 0.0005314 22500 1.609 0.0005228 23000 1.609 0.0005143 23500 1.609 0.0005055 24000 1.609 0.0004969 24500 1.609 0.0004883 25000 1.609 0.0004798 25500 1.609 0.0004714 26000 1.609 0.0004631 26500 1.609 0.0004553 27000 1.609 0.0004479 27500 1.609 0.0004408 28000 1.609 0.000434 28500 1.609 0.0004278 29000 1.609 0.0004226 29500 1.609 0.0004186 30000 1.609 0.0004158 30500 1.609 0.0004139 31000 1.609 0.0004132 31500 1.609 0.0004134 32000 1.609 0.0004132 32500 1.608 0.0004124