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 AT-26-30 03/15/2015 11/13/2015 CGVGA-05MOAS-00000 CGVEH-GLDROO-00493 CGINS-DOSTAM-00347 -42.6484 -42.4995 1000 1000
Metadata Start Date End Date Comment

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 5/31/19


Comparison with the shipboard CTD cast was done for D0001. 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) is lower for the glider compared to the shipboard data. This could be related to the issue of incorrect default salinity settings on some glider optodes (Redmine 13575). 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 3/7/19

Deployment: 1

DO data are suspect (see corresponding note regarding comparison with shipboard data). If this is related to the default salinity settings, this dataset should be annotated to alert users of the issue until it is fixed.

By Lori Garzio, on 5/7/19

New Note

Metadata Start Date End Date Comment
3/14/15, 10:00 PM 11/12/15, 7:00 PM

Deployment 1: Glider was experiencing rudder problems and at recovery was found to be bio-fouled along seams and around tail fin.

Id: 434 By: lgarzio