pCO2 Water

Reference Designator
CE07SHSM-MFD35-05-PCO2WB000
Review Status
Review Complete
Note
Data generally look suspect for many deployments because of the high percentage of values outside of global ranges - did not calculate final data ranges.
Depth
87m
Class
PCO2W (pCO2 Water)
Make / Model
Sunburst / SAMI-pCO2

Dataset Reviews Last processed:

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_inst pco2w_abc_instrument / Complete
2 recovered_inst pco2w_abc_instrument / Complete
3 recovered_host 146 100 0 45 0 0 2,279 87 / 1 Complete
4 recovered_host 206 23 0 182 0 0 445 87 / 1 Complete
5 telemetered 179 57 0 98 3 25 1,252 89 / 2 2 1 Complete
6 recovered_host 178 61 0 100 1 17 1,356 87 / 1 Complete
7 recovered_host 180 25 0 151 2 4 432 87 / 1 Complete
Data Ranges Review Images

Test Notes

  1. missing: ['pressure']
  2. no other streams for comparison

Data Coverage

Deployment: 1234567
32%
68%11%34%14%

Lat/Lon Differences (km)

Deployment: 1234567
3 0.00
4 0.460.00
5 0.210.270.00
6 0.610.170.400.00
7 0.170.290.080.440.00

System Annotations

Metadata Start Date End Date Comment
CE07SHSM-MFD35-05-PCO2WB000
Method: telemetered
Stream: pco2w_abc_dcl_instrument
4/15/15, 1:15 PM 1/9/19, 7:00 PM

UPDATED, 2019-01-15: After careful review, the original data product algorithm (pco2_pco2wat) for this sensor was found to contain an error that resulted in calculation of incorrect derived L1 pCO2 values. In consultation with the vendor, the algorithm has been corrected, verified, and uploaded to the OOI system. This update, effective 2019-01-10, applies to all deployments for this sensor. All derived L1 pCO2 data products generated prior to this date should be re-requested in order to ensure utilization of the correct algorithm. The updated algorithm can be viewed at https://github.com/oceanobservatories/ion-functions/blob/master/ion_functions/data/co2_functions.py. * Until further notice, derived L1 pCO2 data products from this sensor are incorrect and should not be used. A significant discrepancy has been uncovered between the pCO2 values from shipboard water samples vs. values calculated by OOI system, and the algorithms are under review: https://github.com/ooici/ion-functions/blob/master/ion_functions/data/co2_functions.py. To receive instant notification of updates to the code, add yourself as a watcher to the GitHub repository linked above. For further questions please email help@oceanobservatories.org.

Id: 277 By: friedrich.knuth

CE07SHSM-MFD35-05-PCO2WB000
Method: recovered_host
Stream: pco2w_abc_dcl_instrument_recovered
5/5/16, 3:35 PM 1/9/19, 7:00 PM

UPDATED, 2019-01-15: After careful review, the original data product algorithm (pco2_pco2wat) for this sensor was found to contain an error that resulted in calculation of incorrect derived L1 pCO2 values. In consultation with the vendor, the algorithm has been corrected, verified, and uploaded to the OOI system. This update, effective 2019-01-10, applies to all deployments for this sensor. All derived L1 pCO2 data products generated prior to this date should be re-requested in order to ensure utilization of the correct algorithm. The updated algorithm can be viewed at https://github.com/oceanobservatories/ion-functions/blob/master/ion_functions/data/co2_functions.py. * Until further notice, derived L1 pCO2 data products from this sensor are incorrect and should not be used. A significant discrepancy has been uncovered between the pCO2 values from shipboard water samples vs. values calculated by OOI system, and the algorithms are under review: https://github.com/ooici/ion-functions/blob/master/ion_functions/data/co2_functions.py. To receive instant notification of updates to the code, add yourself as a watcher to the GitHub repository linked above. For further questions please email help@oceanobservatories.org.

Id: 303 By: friedrich.knuth

CE07SHSM-MFD35
8/11/16, 8:00 PM 9/26/16, 8:00 PM

The Power System Controller on CE07SHSM indicates the power connection to the MFN short-circuited on 2016-08-12 at 23:30 UTC. Failure is indicated by decreased voltage (70 VDC instead of 380 VDC) and increased current draw (1900 mA instead of 120 mA) to the CVT. This symptom is indicative of a short-circuit in the power lines of either the stretch hose (most likely) or EM Chain. In the past, this failure has been associated with a failed stretch hose. Have disabled all further power and communications with the MFN. This means no more telemetered data from: ADCPT2, VEL3D, CTDBP2 + DOSTA, PRESF, PCO2W, PHSEN2, OPTAA2, ZPLSC

Id: 908 By: michaesm

CE07SHSM-MFD35-05-PCO2WB000
8/11/16, 8:00 PM 9/26/16, 8:00 PM

The Power System Controller on CE07SHSM indicates the power connection to the MFN short-circuited on 2016-08-12 at 23:30 UTC. Failure is indicated by decreased voltage (70 VDC instead of 380 VDC) and increased current draw (1900 mA instead of 120 mA) to the CVT. This symptom is indicative of a short-circuit in the power lines of either the stretch hose (most likely) or EM Chain. In the past, this failure has been associated with a failed stretch hose. Have disabled all further power and communications with the MFN. Therefore, there is no telemetered data for this reference designator.

Id: 913 By: michaesm
Flag: not_available Exclude: No

CE07SHSM-MFD35-05-PCO2WB000
10/12/16, 8:00 PM 4/12/17, 8:00 PM

DCL35 stopped reporting data on 2016-10-13 04:26 UTC. The MPEA indicates the system is booting up and drawing current, but it is not fully booting up and powering on the instruments. There will no longer be any telemetered data for this instrument.

Id: 914 By: michaesm
Flag: not_available Exclude: No

CE07SHSM
12/1/17, 9:35 AM 3/25/18, 3:09 PM

Data loss due to a power system failure. The mooring stopped receiving power from photo voltaic panel 1 of 4 on Nov-2. By Nov-20, the mooring stopped receiving power from two more solar panels (PV2 & PV4) and one of two wind turbines (WT2). This indicates the Power System Controller (PSC) they connect to is failing. Mooring components will be shut down as the mooring loses the ability to recharge its batteries.

Id: 1237 By: crisien
Flag: not_operational Exclude: No

CE07SHSM-MFD35
Method: telemetered
5/25/19, 8:40 AM 10/10/19, 5:07 PM

The high voltage power supply providing power to the seafloor dataloggers and instrumentation failed for reasons unknown at this time. No further telemetered data will be available for this deployment.

Id: 1690 By: wingardc
Flag: not_operational Exclude: No

CE07SHSM-MFD35
Method: recovered-host
5/25/19, 8:40 AM 10/10/19, 5:07 PM

The high voltage power supply providing power to the seafloor dataloggers and instrumentation failed for reasons unknown at this time. No further telemetered data will be available for this deployment.

Id: 1749 By: wingardc
Flag: not_operational Exclude: No

CE07SHSM-MFD35
Method: telemetered
11/20/19, 1:45 PM 12/4/19, 10:20 PM

Due to reduced power on the mooring (limited recharging of the batteries with light winds and low levels of sunlight), we have had to reduce the operating schedule of the seafloor platform. Normally we run the system hourly, but have reduced that schedule to every 3 hours.

Id: 1832 By: wingardc

CE07SHSM-MFD35
Method: telemetered
12/25/19, 11:45 PM

Power to the seafloor sensors failed. With the exception of the VEL3D and OPTAA, the sensors on the seafloor platform should continue to autonomously sample for the remainder of deployment. Until we recover and redeploy the mooring in the spring of 2020, no further telemetered data will be available from the seafloor sensors.

Id: 1869 By: wingardc
Flag: not_operational Exclude: No

CE07SHSM
Method: telemetered
5/13/20, 6:40 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: 2185 By: wingardc
Flag: not_available Exclude: No

Review Notes

Metadata Start Date End Date Comment
CE07SHSM-MFD35-05-PCO2WB000

There is no pressure variable in the .nc files. This should be a coordinate.

By Lori Garzio, on 7/24/19

CE07SHSM-MFD35-05-PCO2WB000

There are no recovered_inst data available for download for any deployment. According to the ingest csvs, the recovered_inst raw data files are available for deployments 1-4 and 6-7, and missing for deployment 5. These files should be ingested or the datasets should be annotated to explain why the recovered_inst data aren't available.

By Lori Garzio, on 7/24/19

CE07SHSM-MFD35-05-PCO2WB000

Data generally look suspect for many deployments of this instrument because of the high percentage of values outside of global ranges. The dataset should be annotated if there is a known issue with this instrument to inform users if all or some data should be considered suspect.

By Lori Garzio, on 7/24/19

CE07SHSM-MFD35-05-PCO2WB000
Deployment: 3

Suspect data - 99% of the values for pco2_seawater are nans or outside of global ranges.

By Lori Garzio, on 7/24/19

CE07SHSM-MFD35-05-PCO2WB000
Deployment: 4

Suspect data - 100% of the values for pco2_seawater are nans or outside of global ranges.

By Lori Garzio, on 7/24/19

CE07SHSM-MFD35-05-PCO2WB000
Deployment: 5

Suspect data - 35% of the values for pco2_seawater are outside of global ranges.

By Lori Garzio, on 7/24/19

CE07SHSM-MFD35-05-PCO2WB000
Deployment: 6

Suspect data - 75% of the values for pco2_seawater are outside of global ranges.

By Lori Garzio, on 7/24/19

CE07SHSM-MFD35-05-PCO2WB000
Deployment: 7

Suspect data - 82% of the values for pco2_seawater are outside of global ranges.

By Lori Garzio, on 7/24/19

New Note