Dissolved Oxygen

Reference Designator
Start Depth
End Depth
Current Status
Review Complete
DOSTA (Dissolved Oxygen Stable Response)
Science Discipline
Optode 4831
M2M Example
Method Data Stream Content Type
recovered_host dosta_abcdjm_glider_recovered Data Products Report M2M Stats Science
telemetered dosta_abcdjm_glider_instrument Data Products Report M2M Stats Science
Deployment Cruise Start Date Stop Date Mooring Asset Node Asset Sensor Asset Latitude Longitude Deployment Depth Water Depth
1 Review KN-217 04/16/2014 05/02/2014 CGVCP-05MOAS-00000 CGVEH-GLDRCP-00387 CGINS-DOSTAM-00173 39.9617 -70.9058 1000 1000
2 Review SI20150110 01/11/2015 03/04/2015 CGVCP-05MOAS-00000 CGVEH-GLDRCP-00387 CGINS-DOSTAM-00173 40.0098 -70.3986 1000 1000
3 Review AT-31 10/14/2015 11/30/2015 CGVCP-05MOAS-00000 CGVEH-GLDRCP-00387 CGINS-DOSTAM-00173 40.07 -70.4152 1000 1000
4 Review AR1-07 04/04/2016 07/29/2016 CGVCP-05MOAS-00000 CGVEH-GLDRCP-00387 CGINS-DOSTAM-00173 39.9685 -70.5384 1000 1000
5 Review SI20170418 04/19/2017 07/02/2017 CGVCP-05MOAS-00000 CGVEH-GLDRCP-00387 CGINS-DOSTAM-00604 39.7836 -70.4657 1000 1000
6 Review AR-24 10/28/2017 01/03/2018 CGVCP-05MOAS-00000 CGVEH-GLDRCP-00387 CGINS-DOSTAM-00604 40.0318 -70.6204 1000 1000
7 Review AR-34 04/08/2019 06/18/2019 CGVCP-05MOAS-00000 CGVEH-GLDRCP-00387 CGINS-DOSTAM-00569 39.9681 -71 1000 1000
Metadata Start Date End Date Comment

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


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


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

Deployment: 1

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

By Lori Garzio, on 9/5/19

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

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

Metadata Start Date End Date Comment
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

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