See Spectras_GLOBAL_4.xls
for details of data sources
Col 1 = absorption (m2 particle-1)
Col 2 = scattering (m2 particle-1)
Col 3 = NONSPEC backscatter (m2 part-1
Format I4,3E15.5
 400 2.82433e-17     4.89676e-16     2.06000e-18    
 425 2.38426e-17     4.69727e-16     2.06000e-18    
 450 1.91499e-17     4.45604e-16     2.06000e-18    
 475 1.54570e-17     4.23720e-16     2.06000e-18    
 500 1.25142e-17     4.03788e-16     2.06000e-18    
 525 1.01496e-17     3.85622e-16     2.06000e-18    
 550 8.24181e-18     3.68887e-16     2.06000e-18    
 575 6.69605e-18     3.53578e-16     2.06000e-18    
 600 5.44165e-18     3.39369e-16     2.06000e-18    
 625 4.42218e-18     3.26274e-16     2.06000e-18    
 650 3.59335e-18     3.14090e-16     2.06000e-18    
 675 2.91895e-18     3.02739e-16     2.06000e-18    
 700 2.49933e-18     2.94832e-16     2.06000e-18