Dissolved Oxygen (130 m)

Reference Designator
Start Depth
End Depth
Fixed on Inductive Wire
Current Status
Review Complete
DOSTA (Dissolved Oxygen Stable Response)
Science Discipline
Optode 4831
M2M Example
Method Data Stream Content Type
recovered_host dosta_abcdjm_ctdbp_p_dcl_instrument_recovered Data Products Report M2M Stats Science
telemetered dosta_abcdjm_ctdbp_p_dcl_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
2 Review AT-30-01 08/15/2015 07/19/2016 CGMGI-01SUMO-00002 CGINS-DOSTAD-00439 59.9436 -39.5737 130 2668
3 Review AR-07-01 07/10/2016 08/14/2017 CGMGI-01SUMO-00003 CGINS-DOSTAD-00228 59.9341 -39.4673 130 2691
4 Review AR21 08/05/2017 10/12/2017 CGMGI-01SUMO-00004 CGINS-DOSTAD-00519 59.9449 -39.5751 130 2659
5 Review AR30-03 06/08/2018 08/09/2019 CGMGI-01SUMO-00005 CGINS-DOSTAD-00518 59.9329 -39.4655 130 2693
6 Review AR35-05 08/05/2019 CGMGI-01SUMO-00006 CGINS-DOSTAD-00462 59.9451 -39.574 130 2664
Metadata Start Date End Date Comment

Annotation ID 788 should be removed - Redmine issue 13228 has been resolved.

By Lori Garzio, on 3/14/19


There are no global ranges in the system for recovered_host dosta_abcdjm_ctdbp_p_dcl_instrument_recovered dosta_analog_tc_oxygen and telemetered dosta_abcdjm_ctdbp_p_dcl_instrument dosta_analog_tc_oxygen.

By Lori Garzio, on 3/14/19


Pressure is not available in any of the netCDF files (this variable should be a coordinate).

By Lori Garzio, on 3/19/19

Deployment: 3
12/7/16, 12:00 AM 5/15/17, 12:00 AM

The sensor appeared to fail on 2016-12-07 (likely related to the power issues on the mooring). Data should be annotated and excluding from summary data range.

By Lori Garzio, on 3/15/19

Deployment: 4
8/5/17, 6:17 PM 10/12/17, 8:03 AM

Deployment 4 dissolved oxygen values are anomalously low (<50 umol L-1). Dissolved oxygen values for deployments 1 and 2 are around 350 - 390 umol L-1. This should be investigated and annotated to alert users of the issue.

By Lori Garzio, on 3/15/19

Deployment: 4
10/12/17, 12:00 AM 6/14/18, 8:02 AM

The surface buoy detached from the mooring and the subsurface portion of the mooring fell to the seafloor (see annotation ID 102). Excluding all mooring data for this time range from final statistics.

By Lori Garzio, on 1/15/19

New Note

Metadata Start Date End Date Comment
2/14/15, 7:00 PM 8/21/15, 8:00 PM

Deployment 1: Status data sent from the buoy included leak detects in the buoy well, drop in battery voltage, and loss of wind turbine input. Upon recovery, the buoy was primarily intact but several instruments were damaged and/or missing. Ice build-up on the tower is speculated to be the cause for much of the damage. No telemetered or recovered_host data expected. Functional instruments could continue to collect data using internal battery power and storage cards.

Id: 46 By: lgarzio

8/15/15, 3:22 PM 2/14/19, 7:00 PM

UPDATED 2020-06-19: The data calculation issue was resolved on 15 Feb 2019. * Dissolved Oxygen concentrations are currently not being calculated due to a function error. Issue under investigation (Redmine 13228).

Id: 788 By: lgarzio

1/26/16, 7:00 PM 7/18/16, 8:00 PM

Deployment 2: A period of violent weather caused power outages on multiple instruments. No telemetered or recovered_host data expected. Functional instruments could continue to collect data using internal battery power and storage cards. Upon recovery, the buoy well was flooded.

Id: 47 By: lgarzio

12/26/16, 7:00 PM 4/6/17, 8:00 PM

Deployment 3: Wind turbines were disabled due to evidence of ice build-up on the surface buoy tower. The platform's battery charge state declined steadily. As of 2017-01-15, all DCLs were shut down and the telemetry schedule was reduced to conserve power. Battery-powered instruments should continue to collect data. UPDATE 2017-04-07: With increasing daylight at this location, sufficient power was generated by solar panels to re-establish limited high-bandwidth telemetry and data transmission. UPDATE: at recovery, wind turbines were missing their hubs and blades, and one solar panel was missing.

Id: 121 By: lgarzio

8/5/17, 2:17 PM 6/14/18, 4:02 AM

Deployment 4: at 10:03 UTC on 12 October 2017 the Irminger Sea Surface Mooring stopped all communications. At recovery, the surface buoy was missing. The subsurface portion of the mooring had fallen to the seafloor and was recovered. CTDMOs, CTDBP-F, DOSTA, and ADCP instrumentation were full ocean depth rated and survived, although any recovered data available after 2017-10-12T10:03:00 are suspect. All other instrumentation imploded or flooded. The cause for the loss of the buoy is inconclusive.

Id: 102 By: lgarzio

6/19/19, 8:00 PM

Deployment 5: Battery voltage dropped below 24V. All DCLs were turned off. CPM1 was placed on a wake schedule. Data collection and telemetry will be irregular until voltage rebounds.

Id: 1625 By: cdobson

Method: telemetered
10/21/19, 8:00 PM

Deployment 6: *UPDATED 2020-04-27: As of 2020-02-21 data for most instruments are being telemetered again (via Iridium). A gap in telemetered data is expected between 2019-10-22 and 2020-02-21 and will not be backfilled but these data will be available upon recovery.*Both fleet broadband units have failed and no more telemetered data is expected at this time. Instruments are believed to be operating as normal and their data will be available upon recovery.

Id: 1743 By: cdobson