Table 4 Percent of data flagged using each quality control step.

From: A multi-year, seasonally resolved dataset of Seaglider observations at Station ALOHA in the North Pacific Subtropical Gyre

Variable

Quality Control Flags

Range Test

Pitch Angle Test

Density Inversion Test

Biofoul test

Stuck Value Test

Input Variable Flagged*

Visual general

Visual sensor†

Temperature

0.05

1.51

2.32

   

0.30

0.47

Conductivity

0.31

1.51

2.32

   

0.30

0.47

Salinity

0.36

1.46

2.33

  

4.28

0.30

0.37

Potential Density Anomaly

0.18

1.46

2.33

  

4.30

0.30

0.37

Oxygen

0.38

  

12.69

 

4.45

0.37

11.08

Chlorophyll a

0.22

  

5.91

0.07

 

0.42

0.16

bbp 470

1.09

  

6.81

1.30

4.66

0.44

1.62

bbp 700

1.13

  

6.9

4.08

4.69

0.45

3.37

bbp 650

0.53

  

5.95

0.33

4.96

0.42

0.04

  1. There is some overlap as data can be flagged multiple times. Numbers reflect percent of total observations flagged across all missions.
  2. *Certain variables have inputs (e.g. salinity and temperature are required for oxygen processing), and have an additional ‘input variable flag’ if any input is flagged as questionable or bad data.
  3. †The percent of oxygen data flagged on the ‘visual sensor’ test primarily composes of the mission sg511-21. That mission is the second longest in this dataset, with oxygen values collected down to ~800 m, and thus a large portion of the flagged dataset.
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