Nitrate

Reference Designator
GA01SUMO-SBD11-08-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
1m
Class
NUTNR (Nitrate)
Make / Model
Satlantic / ISUS

Dataset Reviews Last processed: 7/22/19, 8:15 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_inst 257 109 0 92 4 57 14,494 1 / 1 Complete
2 recovered_inst 361 358 0 0 2 3 76,868 1 / 1 Complete
3 recovered_inst 445 445 0 0 0 0 114,220 1 1 / 1 1 Complete
Data Ranges Review Images

Test Notes

  1. no comparison: timestamps do not match

Data Coverage

Deployment: 123
42%99%100%

Lat/Lon Differences (km)

Deployment: 123
1 0.00
2 10.690.00
3 1.2511.910.00

System Annotations

Metadata Start Date End Date Comment
GA01SUMO
3/15/15, 5:25 PM 11/26/15, 5:08 AM

Deployment 1: Buoy log files showed that seawater was first detected inside the buoy well on 3/26/2015. Both leak detectors showed increasing presence of water over the period of deployment. Upon recovery of the mooring, no external damage was visible and the buoy did not appear to be floating lower than normal.

Id: 653 By: lgarzio

GA01SUMO-SBD11
3/15/15, 5:25 PM 11/26/15, 5:08 AM

Deployment 1: Upon recovery, the bottom of the buoy was heavily biofouled with gooseneck barnacles. The barnacle coverage likely caused imporper sea water flushing at the location of the intakes and sensor faces for the subsurface instruments.

Id: 654 By: lgarzio

GA01SUMO-SBD11
11/14/15, 4:06 PM 11/8/16, 5:10 AM

Deployment 2: Upon recovery, the bottom of the buoy was heavily biofouled with barnacles.

Id: 663 By: lgarzio

GA01SUMO-SBD11
10/26/16, 9:47 PM 1/14/18, 5:24 AM

Deployment 3: Upon recovery, the bottom of the buoy was heavily biofouled.

Id: 385 By: lgarzio

Review Notes

Metadata Start Date End Date Comment
GA01SUMO-SBD11-08-NUTNRB000

salinity_corrected_nitrate is all fill values for every deployment. According to the provenance.json file, the temperature and salinity data from the collocated CTD is missing.

By Lori Garzio, on 7/23/19

GA01SUMO-SBD11-08-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 7/23/19

GA01SUMO-SBD11-08-NUTNRB000
Deployment: 2

Suspect data - 19% of the values for nitrate_concentration are outside of global ranges (too high).

By Lori Garzio, on 7/23/19

GA01SUMO-SBD11-08-NUTNRB000
Deployment: 3

Suspect data - 75% of the values for nitrate_concentration are outside of global ranges (mostly negative).

By Lori Garzio, on 7/23/19

New Note