Dissolved Oxygen

Reference Designator
CP05MOAS-GL387-04-DOSTAM000
Review Status
Review Complete
Note
Depth
0 to 1,000m
Class
DOSTA (Dissolved Oxygen Stable Response)
Make / Model
Aanderaa / Optode 4831

Dataset Reviews Last processed: 8/30/19, 5:18 PM

QC Check Info
Dep. Preferred Method Stream DD FD SG EG Gaps GD TS Rate (s) Pressure Comp. Time Order Valid Data Missing Data Data Comp. Missing Coords. Review
1 recovered_host 17 16 0 0 0 0 414,419 2 1000 / 1017 Complete
2 recovered_host 53 52 0 0 0 0 1,232,829 2 1000 / 980 Complete
3 recovered_host 48 43 0 4 0 0 1,595,697 2 1000 / 667 Complete
4 recovered_host 116 102 0 13 0 0 2,165,003 2 1000 / 982 Complete
5 recovered_host 75 75 0 0 0 0 2,848,777 2 1000 / 993 Complete
6 recovered_host 68 68 0 0 0 0 2,644,460 2 1000 / 994 1 2 Complete
Data Ranges Review Images

Test Notes

  1. fail: data found in another stream (gaps: [4] days: [4])
  2. fail: check ['DO - Pressure Sal Corrected']

Data Coverage

Deployment: 123456
94%98%90%88%100%100%

Deployment Map

System Annotations

Metadata Start Date End Date Comment
CP05MOAS-GL387
7/13/16, 9:00 PM 7/28/16, 8:00 AM

The glider altimeter may have failed.

Id: 644 By: leila
Flag: not_available Exclude: No

CP05MOAS-GL387
5/26/19, 8:00 PM

Deployment 7: Glider's altimeter failed on 5/27/2019 so it will be limited to sampling the bottom line of the FZ box and to 500m until the end of the deployment.

Id: 1620 By: cdobson

Review Notes

Metadata Start Date End Date Comment
CP05MOAS

Bad altimeter pings are apparent in many deployments of the coastal gliders. A few example plots are attached - m_water_depth plotted as semi-transparent bathymetry.

By Lori Garzio, on 5/10/19

CP05MOAS

Glider optodes typically exhibit a sensor lag of 20-25 seconds. Example attached of several segments with consecutive down and up casts for CP05MOAS-GL335-04-DOSTAM000 on 10/26/2015 showing a typical measurement time lag. Profiles should be analyzed for individual time lags and data should be adjusted. OOI doesn't necessarily need to make the adjustment but users should be aware of the issue.

By Lori Garzio, on 5/15/19

CP05MOAS-GL387-04-DOSTAM000

Comparisons with the shipboard CTD casts were done for D0003 and D0006.The shipboard CTD cast data are corrected for temperature, salinity, and depth (Redmine 14230). The L2 DO data product (corrected for temperature, salinity and depth) from the glider is lower compared to the shipboard data (D0003 is substantially lower and could be related to the issue of incorrect default salinity settings on some glider optodes: Redmine 13575). For both comparisons, the difference between the downcast and upcast shows evidence of thermal lag. Comparison to the shipboard bottle data is outside the scope of this project. Note: the conversion from ml/l to umol/kg for the shipboard DO = DO (ml/l) * 44.661 / 1.025.

By Lori Garzio, on 3/13/19

CP05MOAS-GL387
Deployment: 1

Glider doesn't look like it sampled according to plan. This should be annotated.

By Lori Garzio, on 9/5/19

CP05MOAS-GL387-04-DOSTAM000
Deployment: 4

Suspect data - high DO outliers. This seems to occur particularly when the glider is close to the seafloor.

By Lori Garzio, on 9/5/19

CP05MOAS-GL387-04-DOSTAM000
Deployment: 6

28% of sci_abs_oxygen values are NaNs or outside global ranges for this deployment. Likely related to conductivity cell issue (annotation ID 940). Data after 11/12/2017 should be considered suspect.

By Lori Garzio, on 9/5/19

New Note