Dissolved Oxygen

Reference Designator
Start Depth
End Depth
Near Surface Instrument Frame
Current Status
Review Complete
DOSTA (Dissolved Oxygen Stable Response)
Science Discipline
Optode 4831
M2M Example
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 04/02/2015 09/22/2015 CGMCE-02SHSM-00001 CGINS-DOSTAD-00223 44.6383 -124.304 7 80
2 Review OC1510A 10/07/2015 05/16/2016 CGMCE-02SHSM-00002 CGINS-DOSTAD-00482 44.6354 -124.303 7 82
3 Review TN-342 05/17/2016 09/28/2016 CGMCE-02SHSM-00003 CGINS-DOSTAD-00313 44.6357 -124.304 7 80
4 Review AT37-03 09/26/2016 04/22/2017 CGMCE-02SHSM-00004 CGINS-DOSTAD-00217 44.6393 -124.304 7 80
5 Review SKQ201704S 04/20/2017 10/15/2017 CGMCE-02SHSM-00005 CGINS-DOSTAD-00220 44.6358 -124.304 7 81
6 Review SKQ201715S 10/10/2017 04/04/2018 CGMCE-02SHSM-00006 CGINS-DOSTAD-00484 44.6393 -124.304 7 80
7 Review SKQ201808S 04/03/2018 09/25/2018 CGMCE-02SHSM-00007 CGINS-DOSTAD-00223 44.6357 -124.304 7 80
8 Review SR1813 09/22/2018 04/21/2019 CGMCE-02SHSM-00008 CGINS-DOSTAD-00478 44.6395 -124.301 7 80
9 Review SKQ201910S 04/19/2019 10/22/2019 CGMCE-02SHSM-00009 CGINS-DOSTAD-00134 44.6356 -124.304 7 80
10 Review SKQ201921S 10/20/2019 CGMCE-02SHSM-00010 CGINS-DOSTAD-00219 44.6396 -124.303 7 80
Metadata Start Date End Date Comment

A substantial percentage of data for all deployments is outside of global ranges. It looks like the instruments biofouled shortly after each deployment (1-2 months) - the suspect data should be annotated for all deployments, and further analysis should be done using shipboard bottle data (which is outside the scope of this project).

By Lori Garzio, on 3/26/19

New Note

Metadata Start Date End Date Comment
4/2/15, 4:15 PM 4/2/18, 9:17 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: 2104 By: wingardc
Flag: suspect Exclude: No

4/2/18, 9:17 PM

The use of UV lamps has been implemented for biofouling mitigation on this instrument as of 2018-04-03T01:17:00Z.

Id: 2112 By: wingardc

Method: telemetered
Stream: dosta_abcdjm_dcl_instrument
11/3/18, 8:00 PM

Beginning on 2018-11-04 the Aanderaa Optode (DOSTA) started to show erroneous values with large negative spikes on the 4th, 5th and 8th-10th. On the 11th the unit failed completely, with no raw phase measurements being produced. We suspect the instrument has failed. The instrument will be powered off for the remainder of the deployment.

Id: 1536 By: wingardc
Flag: not_operational Exclude: No

Method: telemetered
11/22/19, 3:45 PM 1/7/20, 1:30 PM

Due to reduced power on the mooring (limited recharging of the batteries with light winds and sea lions blocking the solar panels), we have had to reduce the operating schedule of the 7 meter platform. Normally we run the system continuously, but have reduced that schedule to hourly.

Id: 1836 By: wingardc

Method: telemetered
1/13/20, 1:45 PM

During a large storm event on 2020-01-11, power from the wind turbines was lost. This is the primary means of recharging the battery system on the mooring. With the loss of recharging power, we have had to implement a conservative power model. These systems and instruments have been disabled for the foreseeable future, and no further data will collected from them.

Id: 1903 By: wingardc
Flag: not_operational Exclude: No