x : distance from the glacier head along the flow line (m)
          b : bed elevation (m)
     h_1973 : surface elevation at the time of the first field campaign - June 1973 (m)
     h_1981 : surface elevation at the end of the quiescent phase - September 1981 (m)
     h_1983 : surface elevation at the end of the surge phase - July 1983 (m)
          a : broadness/narrowness of the transverse parabolic profile (10^(-4)m^(-1))
alpha_quies : ratio between width-averaged and centre line ice thickness change during quiescence (-)
alpha_surge : ratio between width-averaged and centre line ice thickness change during surge (-)
       beta : difference between width-averaged and centre line surface mass balance (ma^(-1))
      gamma : ratio between active and total cross-sectional area (-)

x,b,h_1973,h_1981,h_1983,a,alpha_quies,alpha_surge,beta,gamma
    0,1941.0,1991.0,1991.0,1991.0,2.7,1.00,1.00,0.0,1.00
  250,1780.0,1875.0,1875.0,1875.0,5.1,1.00,1.00,0.0,1.00
  500,1740.0,1850.0,1850.0,1850.0,3.1,1.00,1.00,0.0,1.00
  750,1690.0,1818.0,1818.0,1818.0,3.0,1.00,1.00,0.0,1.00
 1000,1648.0,1775.0,1775.0,1775.0,2.7,1.00,1.00,0.0,1.00
 1250,1610.0,1750.0,1750.0,1750.0,2.9,1.00,1.00,0.0,1.00
 1500,1560.0,1730.0,1730.0,1730.0,3.5,1.00,1.00,0.0,1.00
 1750,1530.0,1695.0,1696.5,1693.5,3.1,1.00,1.00,0.0,1.00
 2000,1500.0,1660.0,1671.5,1648.5,2.3,1.00,1.00,0.0,1.00
 2250,1470.0,1592.0,1616.0,1568.0,1.3,0.22,0.22,1.4,0.88
 2500,1409.0,1544.0,1578.5,1509.5,1.1,0.19,0.19,1.4,0.75
 2750,1298.0,1508.0,1547.0,1469.0,1.6,0.16,0.16,1.4,0.63
 3000,1262.0,1495.0,1538.0,1452.0,1.8,0.13,0.13,1.4,0.50
 3250,1245.0,1490.8,1537.2,1418.4,2.5,0.16,0.16,1.4,0.63
 3500,1225.0,1470.9,1521.1,1396.5,3.2,0.19,0.19,1.4,0.75
 3750,1180.0,1439.3,1491.7,1364.5,4.6,0.22,0.22,1.4,0.88
 4000,1128.0,1405.1,1458.2,1331.8,6.8,1.00,1.00,0.0,1.00
 4250,1090.0,1382.3,1434.9,1312.7,9.8,1.00,1.00,0.0,1.00
 4500,1058.0,1355.1,1406.6,1291.6,13.1,1.00,1.00,0.0,1.00
 4750,1028.0,1324.8,1376.6,1272.2,15.8,1.00,1.00,0.0,1.00
 5000,1000.0,1302.8,1357.7,1256.7,17.3,1.00,1.00,0.0,1.00
 5250,970.0,1277.4,1335.0,1237.7,17.4,1.00,1.00,0.0,1.00
 5500,939.0,1247.8,1307.3,1214.0,16.8,1.00,1.00,0.0,1.00
 5750,905.0,1220.5,1279.2,1192.0,16.5,1.00,1.00,0.0,1.00
 6000,870.0,1196.9,1254.5,1173.2,16.5,1.00,1.00,0.0,1.00
 6250,847.0,1176.9,1234.6,1157.6,16.2,1.00,1.00,0.0,1.00
 6500,820.0,1154.4,1213.4,1139.1,16.2,1.00,1.00,0.0,1.00
 6750,799.0,1132.6,1193.0,1121.4,16.1,1.00,1.00,0.0,1.00
 7000,771.0,1112.1,1169.9,1104.9,16.6,1.00,1.00,0.0,1.00
 7250,744.0,1092.9,1146.5,1089.8,17.4,1.00,1.00,0.0,1.00
 7500,714.0,1072.2,1120.9,1072.9,18.4,1.00,1.00,0.0,1.00
 7750,691.0,1051.4,1095.2,1056.2,19.0,1.00,1.00,0.0,1.00
 8000,668.0,1029.9,1068.5,1038.7,19.3,1.00,1.00,0.0,1.00
 8250,648.0,1015.5,1049.6,1029.0,19.3,1.00,1.00,0.0,1.00
 8500,621.0,1005.3,1035.4,1024.3,19.6,1.00,1.00,0.0,1.00
 8750,596.0,987.3,1013.8,1013.3,19.5,1.00,1.00,0.0,1.00
 9000,577.4,970.0,992.7,1003.9,19.4,1.00,1.00,0.0,1.00
 9250,557.4,950.8,969.7,995.1,19.6,1.00,1.00,0.0,1.00
 9500,546.2,933.7,949.6,986.1,19.6,1.00,1.00,0.0,1.00
 9750,546.0,914.7,928.6,973.8,19.0,1.00,1.00,0.0,1.00
10000,549.7,897.9,910.4,960.0,18.2,1.00,1.00,0.0,1.00
10250,544.3,877.6,889.1,939.9,17.8,1.00,1.00,0.0,1.00
10500,529.6,851.0,861.0,911.0,17.4,1.00,1.00,0.0,1.00
10750,488.1,818.7,827.8,876.6,18.1,1.00,1.00,0.0,1.00
11000,456.9,791.5,798.0,846.8,18.4,1.00,1.00,0.0,1.00
11250,451.1,772.5,774.8,827.2,17.6,1.00,1.00,0.0,1.00
11500,444.0,755.8,753.9,811.3,16.8,1.00,1.00,0.0,1.00
11750,436.7,733.0,727.5,790.6,15.8,1.00,1.00,0.0,1.00
12000,407.6,708.2,700.7,768.8,16.0,1.00,1.00,0.0,1.00
12250,369.7,689.1,680.0,752.9,17.0,1.00,1.00,0.0,1.00
12500,343.9,667.3,656.6,734.5,17.4,1.00,1.00,0.0,1.00
12750,322.0,645.9,633.6,716.2,17.6,1.00,1.00,0.2,1.00
13000,306.7,625.5,610.8,698.3,17.6,1.00,1.00,0.4,1.00
13250,296.1,605.0,587.4,679.6,17.5,1.00,1.00,0.6,1.00
13500,295.6,584.2,564.0,660.8,16.9,1.00,1.00,0.8,1.00
13750,301.1,559.7,537.6,638.1,15.7,0.90,1.00,1.0,1.00
14000,286.8,536.0,511.7,615.9,15.5,0.80,1.00,1.2,1.00
14250,258.3,513.8,487.2,594.4,16.1,0.84,1.00,1.0,1.00
14500,235.4,491.2,462.1,573.8,15.9,0.86,1.00,0.8,1.00
14750,231.0,466.6,435.0,551.7,13.9,0.89,1.00,0.6,1.00
15000,231.5,440.8,407.3,528.5,11.3,0.93,1.00,0.4,1.00
15250,216.1,416.1,380.4,507.1,9.4,0.96,1.00,0.2,1.00
15500,197.4,395.4,357.3,489.3,7.5,0.97,1.00,0.0,1.00
15750,186.5,373.9,333.6,469.8,5.3,0.95,1.00,0.0,1.00
16000,180.3,360.7,318.2,456.7,3.6,0.91,1.00,0.0,1.00
16250,180.8,346.9,302.6,441.0,2.4,0.90,0.96,0.0,1.00
16500,185.5,330.2,284.4,420.3,1.6,0.88,0.92,0.0,1.00
16750,183.3,313.3,266.3,398.0,1.2,0.88,0.88,0.0,1.00
17000,176.8,297.8,249.5,376.3,1.0,0.87,0.84,0.0,1.00
17250,164.7,281.4,233.1,353.8,0.9,0.89,0.80,0.0,1.00
17500,152.7,263.6,215.4,330.7,0.8,0.91,0.64,0.0,1.00
17750,141.9,246.7,198.5,309.7,0.8,0.93,0.48,0.0,1.00
18000,131.6,232.0,183.8,288.0,0.8,1.00,0.32,0.0,1.00
18250,126.7, NaN, NaN, NaN,0.8,1.00,0.16,0.0,1.00
18500,122.6, NaN, NaN, NaN,0.8,1.00,0.00,0.0,1.00
18750,118.6, NaN, NaN, NaN,0.8,1.00,0.00,0.0,1.00
19000,114.7, NaN, NaN, NaN,0.8,1.00,0.00,0.0,1.00
19250,111.0, NaN, NaN, NaN,0.8,1.00,0.00,0.0,1.00
19500,107.3, NaN, NaN, NaN,0.8,1.00,0.00,0.0,1.00
19750,103.8, NaN, NaN, NaN,0.8,1.00,0.00,0.0,1.00
20000,100.4, NaN, NaN, NaN,0.8,1.00,0.00,0.0,1.00