Nitrate

Reference Designator
CE01ISSM-RID16-07-NUTNRB000
Review Status
Review Complete
Note
Data generally look suspect for all deployments because of the prevalence of negative values - did not calculate final data ranges.
Depth
7m
Class
NUTNR (Nitrate)
Make / Model
Satlantic / ISUS

Dataset Reviews Last processed: 5/28/19, 6:13 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 122 111 0 10 1 1 6,049 1 7 / 1 Complete
2 recovered_inst 185 185 0 0 0 0 68,081 1 7 / 2 2 1 Complete
3 recovered_inst 127 126 0 0 0 0 49,854 1 7 / 2 2 1 Complete
4 recovered_inst 216 31 0 184 1 2 10,711 1 7 / 2 2 1 Complete
5 recovered_inst 138 138 0 0 0 0 58,710 7 / 2 2 1 Complete
6 recovered_inst 200 138 0 51 1 12 51,317 7 / 3 3 1 Complete
7 recovered_inst 177 91 0 67 2 20 9,679 7 / 3 3 1 Complete
8 recovered_inst / Complete
9 recovered_inst / Complete
Data Ranges Review Images

Test Notes

  1. missing: ['pressure']
  2. no comparison: timestamps do not match
  3. no other streams for comparison

Data Coverage

Deployment: 123456789
91%
100%99%14%100%69%51%

Lat/Lon Differences (km)

Deployment: 123456789
1 0.00
2 0.000.00
3 0.080.080.00
4 0.200.200.220.00
5 0.080.080.000.220.00
6 0.180.180.170.090.170.00
7 0.240.240.220.430.220.390.00

System Annotations

Metadata Start Date End Date Comment
CE01ISSM
4/17/14, 4:45 PM 9/30/16, 8:00 PM

All of the inshore surface moorings suffer from an issue called the 'top of the day problem.' A race condition exists in the CPM firmware when transferring daily log files harvested from the various sub-components in a buoy system (e.g. DCL16, CPM3, DCL35, etc) over the Iridium RUDICS connection. The primary CPM rsync's data files from the various sub-components to a central data directory. The first time a daily file is created/copied into that directory (usually shortly after midnight), a compressed copy of the file is created and that compressed file is queued up in a separate text file for transmission to shore. The transfer routine reads that text file and processes the files from that list in order from top to bottom. Once that compressed file is transferred to shore, no further updates for that file are sent to shore. Meanwhile, the CPM continues to rsync data from the different sub-components, updating the original daily log file. The net result is that data is accumulating in the daily log file for an instrument, but we may see only one record (or none) depending on when the rsync job occurred and the compressed file was created and staged for transfer to shore. This affects telemetered data only.

Id: 868 By: michaesm

CE01ISSM
8/7/16, 8:00 PM 10/3/16, 8:00 PM

Correcting the iridium data telemetry issues, permitting full telemetry of data files, resulting in greater power consumption than anticipated. Result is power level of the battery pack has dropped below operational limits and subsystems can no longer power instruments. Shutting the mooring down, and placing in a low power maintenance mode.

Id: 869 By: michaesm
Flag: not_operational Exclude: No

CE01ISSM
12/11/16, 7:00 PM 5/30/17, 8:00 PM

On Monday, Mon Dec 12 15:30:00 2016, stopped receiving any data from CTDBP3. No indication as to possible cause.

Id: 870 By: michaesm
Flag: not_operational Exclude: No

CE01ISSM
2/5/17, 7:00 PM 4/30/17, 8:00 PM

The buoy and mfn battery voltages have been drawn down faster than expected. Have shutdown further power to DCL16, DCL17, CPM3, and DCL37 (DCL35 failed several weeks ago). This takes the following instruments offline:
DCL16
CTDBP + DOSTA (probably internally recording)
FLORTNUTNR (probably internally recording)
PHSEN (probably internally recording)
PCO2W (probably internally recording)
OPTAA
SPKIR
VELPT (probably internally recording)

DCL17
MOPAK
CTDBP + FLORT
VELPT (probably internally recording)
ACOMM
DCL35
ADCPT (probably internally recording)
PCO2W (probably internally recording)
PHSEN (probably internally recording)
PRESF (probably internally recording)
VEL3D (probably internally recording)
DCL37
CTDBP + DOSTA (probably internally recording)
OPTAA
ZPLSC (probably internally recording)

Id: 871 By: michaesm
Flag: not_available Exclude: No

CE01ISSM-RID16-07-NUTNRB000
8/6/17, 7:00 AM

The Satlantic ISUS instrument has been discontinued, and all OOI ISUS units have been converted to the Sea-Bird SUNA model. A new data parser is in development, and any resulting data gaps will be filled once the parser has been delivered and the data are processed.

Id: 1408 By: lgarzio

CE01ISSM-RID16
Method: telemetered
1/11/20, 1:45 PM

During a large storm event on 2020-01-11, the surface buoy and NSIF broke free and went adrift. The buoy and NSIF were recovered from the beach the following mooring. No further data will be collected from these systems for the remainder of this deployment.

Id: 1893 By: wingardc
Flag: not_operational Exclude: No

Review Notes

Metadata Start Date End Date Comment
CE01ISSM-RID16-07-NUTNRB000

NUTNR timestamps between recovered_inst and recovered_host/telemetered data are offset, so comparisons between the two methods based on timestamp is invalid. In the attached figures, timestamp_offset1 is from the beginning of deployment 2 and timestamp_offset2 is at the end of deployment 2. The first column is recovered_host data and the second column is recovered_inst data.

By Lori Garzio, on 5/28/19

CE01ISSM-RID16-07-NUTNRB000

Annotation ID 1408 should be updated when the new SUNA parser is available and data are ingested.

By Lori Garzio, on 5/29/19

CE01ISSM-RID16-07-NUTNRB000

The .nc files for all deployments are missing pressure.

By Lori Garzio, on 5/29/19

CE01ISSM-RID16-07-NUTNRB000

Data generally look suspect for all deployments of this instrument (the ISUS model) because of the prevalence of negative values. 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 5/30/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 1

The recovered_inst data are not available for download from deployment 1. According to the ingest csv, the parser wasn't working. These data need to be ingested or annotated to indicate why the full recovered dataset isn't available.

By Lori Garzio, on 5/29/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 1

Data are suspect - 41% of the data are outside of global ranges [0 - 40 umol L-1]. These data should be annotated to alert users of any issues.

By Lori Garzio, on 5/29/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 2

Data are suspect - 98% of the L1 nitrate_concentration are negative. This dataset should be annotated to alert users of issues.

By Lori Garzio, on 5/29/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 3
7/29/15, 12:00 AM 8/25/15, 12:00 AM

nitrate_concentration is above global ranges [0 - 40 umol L-1] in the middle of the deployment.

By Lori Garzio, on 5/30/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 4

54% of salinity_corrected_nitrate data are negative

By Lori Garzio, on 5/30/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 4
11/8/15, 12:00 AM 5/10/16, 3:22 PM

The missing data at the end of deployment 4 should be annotated.

By Lori Garzio, on 5/30/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 5

37% of the nitrate_concentration data are negative

By Lori Garzio, on 5/30/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 5

97% of the salinity_corrected_nitrate data are fill values (no CTD data available for the correction).

By Lori Garzio, on 5/30/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 6

22% of the nitrate_concentration data are outside of global ranges.

By Lori Garzio, on 5/30/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 7

16% of the nitrate_concentration data are outside of global ranges.

By Lori Garzio, on 5/30/19

CE01ISSM-RID16-07-NUTNRB000
Deployment: 7

salinity_corrected_nitrate data are all fill values. According to the provenance.json file, ctdbp_seawater_temperature and practical_salinity are missing because the recovered_inst data from CE01ISSM-RID16-03-CTDBPC000 are missing for deployment 7.

By Lori Garzio, on 5/30/19

New Note