Dissolved Oxygen

Reference Designator
CE02SHSM-RID27-04-DOSTAD000
Review Status
Review Complete
Note
A substantial percentage of data are outside of global ranges (likely due to biofouling).
Depth
7m
Class
DOSTA (Dissolved Oxygen Stable Response)
Make / Model
Aanderaa / Optode 4831

Dataset Reviews Last processed: 3/19/19, 7:15 PM

QC Check Info
Dep. Preferred Method Stream DD FD SG EG Gaps GD TS Rate (s) Pressure Comp. Time Order Valid Data Missing Data Data Comp. Missing Coords. Review
1 recovered_host 174 174 0 0 0 0 1,656,669 2 7 / 7 Complete
2 recovered_host 223 223 0 0 0 0 2,134,323 2 7 / 7 Complete
3 recovered_host 135 135 0 0 1 1 1,268,013 2 7 / 7 Complete
4 recovered_host 209 209 0 0 0 0 1,991,986 2 7 / 7 Complete
5 recovered_host 179 178 0 1 0 0 1,530,760 2 7 / 7 Complete
6 recovered_host 177 166 1 0 2 11 1,636,493 2 7 / 7 1 Complete
7 recovered_host 176 147 0 0 3 32 558,187 2 7 / 7 Complete
Data Ranges Review Images

Test Notes

  1. fail: data found in another stream (gaps: [1] days: [2])

Data Coverage

Deployment: 1234567
100%100%100%100%99%94%84%

Lat/Lon Differences (km)

Deployment: 1234567
1 0.00
2 0.330.00
3 0.290.090.00
4 0.110.440.400.00
5 0.280.090.010.390.00
6 0.110.440.400.000.390.00
7 0.290.090.000.400.010.400.00

Example Composite Data Plot

System Annotations

Metadata Start Date End Date Comment
CE02SHSM-RID27-04-DOSTAD000
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

CE02SHSM-RID27-04-DOSTAD000
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

CE02SHSM-RID27-04-DOSTAD000
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

CE02SHSM-RID27
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

CE02SHSM-RID27
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

Review Notes

Metadata Start Date End Date Comment
CE02SHSM-RID27-04-DOSTAD000

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