See Spectras_GLOBAL_3.xls
for details of data sources
Col 2 = absorption (m2 particle-1)
Col 3 = scattering (m2 particle-1)
Col 4 = backscattering ratio
Format I4,????????????
*** Sm Euk ***
 400 3.06e-17     5.10e-16     5.41e-03   
 425 2.47e-17     4.80e-16     5.41e-03  
 450 1.96e-17     4.25e-16     5.41e-03  
 475 1.60e-17     4.35e-16     5.41e-03   
 500 1.29e-17     4.15e-16     5.41e-03   
 525 1.04e-17     3.93e-16     5.41e-03   
 550 8.47e-18     3.75e-16     5.41e-03   
 575 6.92e-18     3.61e-16     5.41e-03   
 600 5.57e-18     3.47e-16     5.41e-03   
 625 4.49e-18     3.34e-16     5.41e-03  
 650 3.64e-18     3.16e-16     5.41e-03  
 675 2.98e-18     3.08e-16     5.41e-03   
 700 2.41e-18     2.99e-16     5.41e-03