Default "pure water" absorption (a) and scattering (b) coefficients. Based on: 200-300 nm: R.C. Smith and K. Baker, 1981. Appl. Optics 20(2), 177-184. 300-340 nm: smooth transition from Smith & Baker at 300 to Sogandares & Fry at 340 340-380 nm: F.M. Sogandares and E.S. Fry, 1997. Appl. Optics 36(33), 8699-8709. 380-725 nm: R.M. Pope and E.S. Fry, 1997. Appl. Optics 36(33), 8710-8723. 725-800 nm: R.C. Smith and K. Baker, 1981. Appl. Optics 20(2), 177-184. 800-1150nm: D. Segelstein, 1981. "The Complex Refrac. Index of Water", M.S. Thesis, U. Missouri Measured absorption data were spline fit and resampled to 5 nm resolution. Scattering coefs were computed from A. Morel, 1974. "Optical Aspects Oceanogr.," Chap 1 (L&WEq. 3.31) wavelen(nm) a(1/m) b(1/m) 200.0 3.0700e+000 1.5140e-001 205.0 2.4819e+000 1.3608e-001 210.0 1.9900e+000 1.2263e-001 215.0 1.6075e+000 1.1077e-001 220.0 1.3100e+000 1.0030e-001 225.0 1.0901e+000 9.1021e-002 230.0 9.2700e-001 8.2776e-002 235.0 8.1200e-001 7.5432e-002 240.0 7.2000e-001 6.8874e-002 245.0 6.3428e-001 6.3004e-002 250.0 5.5900e-001 5.7739e-002 255.0 5.0262e-001 5.3005e-002 260.0 4.5700e-001 4.8740e-002 265.0 4.1492e-001 4.4890e-002 270.0 3.7300e-001 4.1407e-002 275.0 3.2966e-001 3.8252e-002 280.0 2.8800e-001 3.5387e-002 285.0 2.5114e-001 3.2782e-002 290.0 2.1500e-001 3.0409e-002 295.0 1.7622e-001 2.8245e-002 300.0 1.4100e-001 2.6267e-002 305.0 1.1648e-001 2.4456e-002 310.0 9.9000e-002 2.2797e-002 315.0 8.5249e-002 2.1275e-002 320.0 7.3000e-002 1.9876e-002 325.0 6.1085e-002 1.8588e-002 330.0 5.0000e-002 1.7402e-002 335.0 4.0600e-002 1.6307e-002 340.0 3.2500e-002 1.5296e-002 345.0 2.5603e-002 1.4361e-002 350.0 2.0400e-002 1.3496e-002 355.0 1.7589e-002 1.2694e-002 360.0 1.5600e-002 1.1949e-002 365.0 1.3160e-002 1.1258e-002 370.0 1.1400e-002 1.0615e-002 375.0 1.1496e-002 1.0017e-002 380.0 1.1370e-002 9.4603e-003 385.0 9.4100e-003 8.9408e-003 390.0 8.5100e-003 8.4561e-003 395.0 8.1300e-003 8.0033e-003 400.0 6.6300e-003 7.5800e-003 405.0 5.3000e-003 7.1839e-003 410.0 4.7300e-003 6.8131e-003 415.0 4.4400e-003 6.4655e-003 420.0 4.5400e-003 6.1395e-003 425.0 4.7800e-003 5.8335e-003 430.0 4.9500e-003 5.5461e-003 435.0 5.3000e-003 5.2759e-003 440.0 6.3500e-003 5.0217e-003 445.0 7.5100e-003 4.7825e-003 450.0 9.2200e-003 4.5571e-003 455.0 9.6200e-003 4.3447e-003 460.0 9.7900e-003 4.1443e-003 465.0 1.0110e-002 3.9552e-003 470.0 1.0600e-002 3.7766e-003 475.0 1.1400e-002 3.6079e-003 480.0 1.2700e-002 3.4483e-003 485.0 1.3600e-002 3.2973e-003 490.0 1.5000e-002 3.1544e-003 495.0 1.7300e-002 3.0191e-003 500.0 2.0400e-002 2.8908e-003 505.0 2.5600e-002 2.7692e-003 510.0 3.2500e-002 2.6538e-003 515.0 3.9600e-002 2.5443e-003 520.0 4.0900e-002 2.4402e-003 525.0 4.1700e-002 2.3414e-003 530.0 4.3400e-002 2.2475e-003 535.0 4.5200e-002 2.1581e-003 540.0 4.7400e-002 2.0731e-003 545.0 5.1100e-002 1.9922e-003 550.0 5.6500e-002 1.9151e-003 555.0 5.9600e-002 1.8417e-003 560.0 6.1900e-002 1.7717e-003 565.0 6.4200e-002 1.7050e-003 570.0 6.9500e-002 1.6413e-003 575.0 7.7200e-002 1.5805e-003 580.0 8.9600e-002 1.5225e-003 585.0 1.1000e-001 1.4671e-003 590.0 1.3510e-001 1.4141e-003 595.0 1.6720e-001 1.3635e-003 600.0 2.2240e-001 1.3151e-003 605.0 2.5770e-001 1.2688e-003 610.0 2.6440e-001 1.2245e-003 615.0 2.6780e-001 1.1820e-003 620.0 2.7550e-001 1.1414e-003 625.0 2.8340e-001 1.1025e-003 630.0 2.9160e-001 1.0652e-003 635.0 3.0120e-001 1.0294e-003 640.0 3.1800e-001 9.9511e-004 645.0 3.2500e-001 9.6221e-004 650.0 3.4000e-001 9.3064e-004 655.0 3.7100e-001 9.0034e-004 660.0 4.1000e-001 8.7124e-004 665.0 4.2900e-001 8.4329e-004 670.0 4.3900e-001 8.1644e-004 675.0 4.4800e-001 7.9064e-004 680.0 4.6500e-001 7.6583e-004 685.0 4.8600e-001 7.4197e-004 690.0 5.1600e-001 7.1902e-004 695.0 5.5900e-001 6.9694e-004 700.0 6.2400e-001 6.7569e-004 705.0 7.0400e-001 6.5523e-004 710.0 8.2700e-001 6.3552e-004 715.0 1.0070e+000 6.1655e-004 720.0 1.2310e+000 5.9826e-004 725.0 1.4890e+000 5.8064e-004 730.0 1.7990e+000 5.6366e-004 735.0 2.1289e+000 5.4728e-004 740.0 2.3800e+000 5.3148e-004 745.0 2.4590e+000 5.1624e-004 750.0 2.4700e+000 5.0154e-004 755.0 2.5098e+000 4.8735e-004 760.0 2.5500e+000 4.7365e-004 765.0 2.5472e+000 4.6042e-004 770.0 2.5100e+000 4.4764e-004 775.0 2.4460e+000 4.3530e-004 780.0 2.3600e+000 4.2337e-004 785.0 2.2549e+000 4.1184e-004 790.0 2.1600e+000 4.0070e-004 795.0 2.1042e+000 3.8993e-004 800.0 2.0700e+000 3.7951e-004 805.0 2.0494e+000 3.6943e-004 810.0 2.0916e+000 3.5968e-004 815.0 2.2463e+000 3.5024e-004 820.0 2.4669e+000 3.4111e-004 825.0 2.8190e+000 3.3227e-004 830.0 3.0975e+000 3.2371e-004 835.0 3.3423e+000 3.1542e-004 840.0 3.7098e+000 3.0738e-004 845.0 3.9835e+000 2.9960e-004 850.0 4.3758e+000 2.9206e-004 855.0 4.6308e+000 2.8476e-004 860.0 4.9393e+000 2.7767e-004 865.0 5.1535e+000 2.7081e-004 870.0 5.3659e+000 2.6415e-004 875.0 5.6114e+000 2.5769e-004 880.0 5.8288e+000 2.5142e-004 885.0 6.0074e+000 2.4534e-004 890.0 6.2567e+000 2.3944e-004 895.0 6.4708e+000 2.3372e-004 900.0 6.8198e+000 2.2816e-004 905.0 7.1028e+000 2.2276e-004 910.0 7.8970e+000 2.1753e-004 915.0 9.4786e+000 2.1244e-004 920.0 1.1171e+001 2.0749e-004 925.0 1.4658e+001 2.0269e-004 930.0 1.9270e+001 1.9803e-004 935.0 2.3414e+001 1.9349e-004 940.0 2.9309e+001 1.8908e-004 945.0 3.4684e+001 1.8480e-004 950.0 3.8304e+001 1.8064e-004 955.0 4.1981e+001 1.7659e-004 960.0 4.4081e+001 1.7265e-004 965.0 4.4890e+001 1.6881e-004 970.0 4.5310e+001 1.6509e-004 975.0 4.4852e+001 1.6146e-004 980.0 4.3710e+001 1.5793e-004 985.0 4.2409e+001 1.5450e-004 990.0 4.1418e+001 1.5116e-004 995.0 3.9679e+001 1.4790e-004 1000.0 3.7697e+001 1.4473e-004 1005.0 3.5354E+01 1.4165E-04 1010.0 3.3172E+01 1.3865E-04 1015.0 3.1161E+01 1.3572E-04 1020.0 2.9280E+01 1.3287E-04 1025.0 2.6888E+01 1.3009E-04 1030.0 2.4575E+01 1.2739E-04 1035.0 2.2381E+01 1.2475E-04 1040.0 2.0383E+01 1.2218E-04 1045.0 1.8520E+01 1.1968E-04 1050.0 1.6910E+01 1.1723E-04 1055.0 1.6084E+01 1.1485E-04 1060.0 1.5364E+01 1.1253E-04 1065.0 1.5049E+01 1.1026E-04 1070.0 1.4859E+01 1.0806E-04 1075.0 1.5202E+01 1.0590E-04 1080.0 1.5666E+01 1.0380E-04 1085.0 1.6563E+01 1.0175E-04 1090.0 1.7526E+01 9.9748E-05 1095.0 1.8617E+01 9.7795E-05 1100.0 1.9859E+01 9.5889E-05 1105.0 2.1560E+01 9.4029E-05 1110.0 2.3544E+01 9.2213E-05 1115.0 2.6554E+01 9.0440E-05 1120.0 3.0159E+01 8.8708E-05 1125.0 3.6170E+01 8.7018E-05 1130.0 4.3384E+01 8.5367E-05 1135.0 5.3152E+01 8.3754E-05 1140.0 6.5060E+01 8.2178E-05 1145.0 8.0012E+01 8.0639E-05 1150.0 9.8335E+01 7.9136E-05 -1.0 -1.0000e+000 -1.0000e+000