year  cruise_id  lat      lon      event     sample  date        tow       
2008  Nghza-08   20.2167  58.7500  05070802  02      5/7/2008    surface   
2008  Nghza-08   20.2167  58.7500  05100803  03      5/10/2008   surface   
2008  Nghza-08   20.2167  58.7500  05110804  04      5/11/2008   surface   
2008  Nghza-08   20.2167  58.7500  05120805  05      5/12/2008   surface   
2008  Nghza-08   20.2167  58.7500  05130806  06      5/13/2008   surface   
2008  Nghza-08   20.2167  58.7500  05140807  07      5/14/2008   vertical  
2008  Nghza-08   20.2167  58.7500  05140808  08      5/14/2008   surface   
2008  Nghza-08   20.2167  58.7500  05170809  09      5/17/2008   surface   
2008  Nghza-08   20.2167  58.7500  05180810  10      5/18/2008   surface   
2008  Nghza-08   20.2167  58.7500  05190811  11      5/19/2008   surface   
2008  Nghza-08   20.2167  58.7500  05200812  12      5/20/2008   surface   
2008  Nghza-08   20.2167  58.7500  05210813  13      5/21/2008   surface   
2008  Nghza-08   20.2167  58.7500  05240814  14      5/24/2008   vertical  
2008  Nghza-08   20.2167  58.7500  05240815  15      5/24/2008   surface   
2008  Nghza-08   20.2167  58.7500  05250816  16      5/25/2008   surface   
2008  Nghza-08   20.2167  58.7500  05260817  17      5/26/2008   surface   
2008  Nghza-08   20.2167  58.7500  05260818  18      5/26/2008   vertical  
2008  Nghza-08   20.2167  58.7500  05270819  19      5/27/2008   surface   
2008  Nghza-08   20.2167  58.7500  05280820  20      5/28/2008   surface   
2008  Nghza-08   20.2167  58.7500  05310821  21      5/31/2008   surface   
2008  Nghza-08   20.2167  58.7500  06010822  22      6/1/2008    surface   
2008  Nghza-08   20.2167  58.7500  06020823  23      6/2/2008    surface   
2008  Nghza-08   20.2167  58.7500  06030824  24      6/3/2008    vertical  
2008  Nghza-08   20.2167  58.7500  06030825  25      6/3/2008    surface   
2008  Nghza-08   20.2167  58.7500  06040826  26      6/4/2008    surface   
2008  Nghza-08   20.2167  58.7500  06070828  28      6/7/2008    surface   
2008  Nghza-08   20.2167  58.7500  06100829  29      6/10/2008   surface   
2008  Nghza-08   20.2167  58.7500  06140830  30      6/14/2008   surface   
2008  Nghza-08   20.2167  58.7500  06160831  31      6/16/2008   surface   
2008  Nghza-08   20.2167  58.7500  08310835  35      8/31/2008   surface   
2008  Nghza-08   20.2167  58.7500  09070844  44      9/7/2008    surface   
2008  Nghza-08   20.2167  58.7500  10030846  46      10/3/2008   surface   
2008  Nghza-08   20.2167  58.7500  10040847  47      10/4/2008   surface   
2008  Nghza-08   20.2167  58.7500  10020848  48      10/2/2008   surface   
2008  Nghza-08   20.2167  58.7500  10050849  49      10/5/2008   surface