depth,age,n2,chla,zone
0,2005,1.430606811,0.076179268,3
0.25,1995,1.222579293,,2
0.5,1984,1.104180563,0.016655172,2
0.75,1953,1.065699273,,2
1,1922,1.123976952,0.007557074,2
1.25,1891,1.144838414,,2
1.5,1859,1.104260191,0.00513463,2
1.75,1828,1.1042801,,2
2,1797,1.078250154,0.005591292,2
2.25,1766,1.180176882,,2
2.5,1735,1.130428363,0.002972091,2
2.75,1703,1.172495645,,2
3,1672,1.335790461,0.008056111,1
3.25,1641,1.31839511,,1
3.5,1610,1.265783546,0.013256871,1
3.75,1579,1.223898491,,1
4,1547,1.302443277,0.016324978,1
4.25,1516,1.274501644,,1
4.5,1485,1.324295691,0.018695318,1
4.75,1454,1.411745724,,1
5,,,0.01225253,
5.5,,,0.011262124,