date_local  Year  Month  Day  site      lat         lon          site_depth  T_degC_BW  Salinity_BW  Begg_Density  DSB_Density_len  DSB_Density_vol  SurfaceChla  
2017-03-27  2017  3      27   CB4.3C    38.55505    -76.42794    26          7          20.4         0.17          282              0.89             0.11         
2017-04-26  2017  4      26   CB4.3C    38.55505    -76.42794    26          14.8       20           0.07          203              0.64             0.083        
2017-06-01  2017  6      1    CB4.3C    38.55505    -76.42794    26          18.5       19.6         0.08          174              0.55             0.051        
2017-07-09  2017  7      9    CB4.3C    38.55505    -76.42794    26          27         18.6         0.02          48               0.15             nd           
2017-08-16  2017  8      16   CB4.3C    38.55505    -76.42794    26          27.2       18.1         0.18          10               0.03             0.082        
2017-10-27  2017  10     27   CB4.3C    38.55505    -76.42794    26          17.3       18.6         0.11          23               0.07             0.048        
2018-02-27  2018  2      27   CB4.3C    38.55505    -76.42794    26          5          20.6         0.34          447              1.4              0.112        
2018-05-09  2018  5      9    CB4.3C    38.55505    -76.42794    26          16         19.5         0.75          1005             3.16             0.62         
2018-08-24  2018  8      24   CB4.3C    38.55505    -76.42794    26          28         18.1         0.02          22               0.07             0.092        
2017-03-27  2017  3      27   CB4.3W    38.55728    -76.49402    9           7          15           0.52          88               0.28             0.144        
2017-04-26  2017  4      26   CB4.3W    38.55728    -76.49402    9           15.6       15.6         0.64          39               0.12             0.183        
2017-06-01  2017  6      1    CB4.3W    38.55728    -76.49402    9           20.1       15.4         0.87          78               0.25             0.149        
2017-08-16  2017  8      16   CB4.3W    38.55728    -76.49402    9           27.2       11.4         2.21          54               0.17             0.143        
2017-10-27  2017  10     27   CB4.3W    38.55728    -76.49402    9           19.1       12.5         0.12          16               0.05             0.176        
2018-02-27  2018  2      27   CB4.3W    38.55728    -76.49402    9           7          13.9         0.41          93               0.29             0.189        
2018-05-09  2018  5      9    CB4.3W    38.55728    -76.49402    9           19         17.2         0.43          24               0.08             0.192        
2018-08-24  2018  8      24   CB4.3W    38.55728    -76.49402    9           29         11.4         0.37          124              0.39             0.122