Dissolved Oxygen

Reference Designator
CE09OSSM-RID27-04-DOSTAD000
Start Depth
7
End Depth
7
Location
Near Surface Instrument Frame
Current Status
Review Complete
Class
DOSTA (Dissolved Oxygen Stable Response)
Series
DOSTA-D
Science Discipline
Chemical
Make
Aanderaa
Model
Optode 4831
M2M Example
https://ooinet.oceanobservatories.org/api/m2m/12576/sensor/inv/CE09OSSM/RID27/04-DOSTAD000/metadata
Method Data Stream Content Type
recovered_host dosta_abcdjm_dcl_instrument_recovered Data Products Report M2M Stats Science
telemetered dosta_abcdjm_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
1 Review OC1503D 04/09/2015 09/25/2015 CGMCE-09OSSM-00001 CGINS-DOSTAD-00292 46.8539 -124.958 7 542
2 Review OC1510A 10/15/2015 05/07/2016 CGMCE-09OSSM-00002 CGINS-DOSTAD-00219 46.8531 -124.954 7 542
3 Review TN-342 05/12/2016 09/22/2016 CGMCE-09OSSM-00003 CGINS-DOSTAD-00222 46.8537 -124.961 7 542
4 Review AT37-03 09/20/2016 04/14/2017 CGMCE-09OSSM-00004 CGINS-DOSTAD-00484 46.8508 -124.972 7 542
5 Review SKQ201704S 04/12/2017 10/06/2017 CGMCE-09OSSM-00005 CGINS-DOSTAD-00222 46.8529 -124.959 7 542
6 Review SKQ201715S 10/04/2017 03/30/2018 CGMCE-09OSSM-00006 CGINS-DOSTAD-00315 46.8478 -124.984 7 542
7 Review SKQ201808S 03/26/2018 09/19/2018 CGMCE-09OSSM-00007 CGINS-DOSTAD-00292 46.853 -124.958 7 554
8 Review SR1813 09/19/2018 04/25/2019 CGMCE-09OSSM-00008 CGINS-DOSTAD-00219 46.849 -124.978 7 542
9 Review SKQ201910S 04/24/2019 10/13/2019 CGMCE-09OSSM-00009 CGINS-DOSTAD-00217 46.8527 -124.954 7 542
10 Review SKQ201921S 10/11/2019 CGMCE-09OSSM-00010 CGINS-DOSTAD-00314 46.865 -124.948 7 542
Metadata Start Date End Date Comment
CE09OSSM-RID27-04-DOSTAD000

Deployments 1, 2 and 7: Data gap at the end of the deployment is not annotated in the system.

Deployments 1, 2, 4, 5, 6, and 7: Invalid data represent data well above the maximum global ranges 400 ┬Ámol/(L,Kg) for dissolved oxygen concentrations or 110 % for oxygen saturation. Biofouling and DO sensor drift are both observed in the data.

By Leila Belabbassi, on 12/17/18

CE09OSSM-RID27-04-DOSTAD000
7/1/16, 12:00 AM 9/23/16, 12:00 AM

suspect data

By Leila Belabbassi, on 2/14/19

CE09OSSM-RID27-04-DOSTAD000
12/1/16, 12:00 AM 4/25/17, 12:00 AM

suspect data

By Leila Belabbassi, on 2/14/19

CE09OSSM-RID27-04-DOSTAD000
8/1/17, 12:00 AM 10/30/17, 12:00 AM

suspect data

By Leila Belabbassi, on 2/14/19

CE09OSSM-RID27-04-DOSTAD000
12/1/17, 12:00 AM 4/2/18, 12:00 AM

suspect data

By Leila Belabbassi, on 2/14/19

CE09OSSM-RID27-04-DOSTAD000
Deployment: 5

A data gap is not annotated in the system ['2017-08-11T20:32:38', '2017-08-13T19:30:16]

By Leila Belabbassi, on 12/18/18

CE09OSSM-RID27-04-DOSTAD000
Deployment: 6

A data gap is not annotated in the system ['2017-10-24T16:33:21', '2017-10-25T17:30:14'].
From previous notes, the gap in the data is due to batteries not recharging sufficiently. To conserve power, the MFN was turned off and the NSIF was reduced to 1 hour communications. The OPTAA is the only instrument on the MFN without internal batteries. See redmine ticket #12980 .

By Leila Belabbassi, on 12/18/18

CE09OSSM-RID27-04-DOSTAD000
Deployment: 7

The NetCDF data file is missing the appropriate variables coordinates. In this case the coordinates are 'int_ctd_pressure', 'lat' and 'lon'.

By Leila Belabbassi, on 12/17/18

CE09OSSM-RID27-04-DOSTAD000
Deployment: 7

A data gap of 26 days is not annotated in the system ['2018-04-29T12:33:33', '2018-05-25T17:30:13']

By Leila Belabbassi, on 12/18/18

New Note

Metadata Start Date End Date Comment
CE09OSSM-RID27-04-DOSTAD000
4/9/15, 1:30 PM 3/25/18, 9:39 PM

Prior to the use of UV lamps for biofouling mitigation, this sensor would routinely biofoul after the first 6-8 weeks of a deployment (more common during a spring/summer deployment). Users should carefully examine the data to determine if biofouling has begun to dominate the signal.

Id: 2108 By: wingardc
Flag: suspect Exclude: No

CE09OSSM-RID27-04-DOSTAD000
3/25/18, 9:39 PM

The use of UV lamps has been implemented for biofouling mitigation on this instrument as of 2018-03-26T01:39:00Z.

Id: 2118 By: wingardc

CE09OSSM-RID27-04-DOSTAD000
Method: telemetered
Stream: dosta_abcdjm_dcl_instrument
11/18/18, 7:00 AM

Evidence of increased oxygen during daylight hours suggest a phytoplankton layer has started to develop on the face of the instrument, producing oxygen as a result of photosynthesis. Have doubled the period of time the UV biofouling control lamp is on in order to hopefully stop and reverse the growth.

Id: 1537 By: wingardc
Flag: suspect Exclude: No

CE09OSSM-RID27
Method: telemetered
4/27/20, 3:40 PM

We are experiencing an intermittent failure of communication between the systems on the NSIF and the buoy. While the systems on the NSIF are operating, due to a change in the telemetry system, only a finite backlog of data is telemetered to shore. As a result, when communications are restored, some of the data backlog may be missing and there may be gaps in the record.

Id: 2184 By: wingardc

CE09OSSM
Method: telemetered
5/9/20, 8:40 PM 5/10/20, 8:00 PM

Due to a bug in the mooring telemetry system, data during this time range was not telemetered to shore. It was recorded on the mooring and instruments and will be available in the recovered data streams.

Id: 2182 By: wingardc
Flag: not_available Exclude: No