Spectrophotometer

Reference Designator
CP04OSSM-RID27-01-OPTAAD000
Review Status
Review Complete
Note
The OPTAA data were run through the automated QC tests, but were not reviewed visually. Plots are provided in the “Review Images” section only for wavelengths on/near 676nm (if the wavelengths are defined in the .nc files).
Depth
7m
Class
OPTAA (Absorption Spectrophotometer)
Make / Model
WET Labs / AC-S

Dataset Reviews Last processed: 6/27/19, 12:28 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 telemetered 150 149 0 0 0 0 617,743 7 / 1 2 2 3 Complete
2 recovered_host 168 167 0 0 0 0 1,647,604 7 / 1 4 3 Complete
3 recovered_host 205 186 0 0 3 20 759,131 7 / 1 4 3 Complete
4 recovered_host 139 139 0 0 0 0 573,512 7 / 1 4 3 Complete
5 recovered_host 240 240 0 0 0 0 2,371,386 7 / 1 4 3 Complete
6 recovered_host 150 131 0 2 1 2 1,274,718 7 / 1 4 3 Complete
7 recovered_host 153 153 0 0 0 0 1,507,413 7 / 1 4 3 Complete
Data Ranges Review Images

Test Notes

  1. pass unique test - ascending not tested
  2. no other streams for comparison
  3. missing: ['pressure']
  4. no comparison: timestamps do not match

Data Coverage

Deployment: 1234567
99%
99%91%100%100%87%100%

Lat/Lon Differences (km)

Deployment: 1234567
1 0.00
2 0.510.00
3 0.560.790.00
4 0.490.120.850.00
5 0.580.820.030.880.00
6 0.460.200.880.080.910.00
7 0.540.750.050.810.080.840.00

System Annotations

Metadata Start Date End Date Comment
CP04OSSM-RID27-01-OPTAAD000
Stream: optaa_dj_dcl_instrument_recovered
12/12/14, 4:47 PM

Per vendor feedback, the first 1-2 min of each AC-S instrument sampling period should be considered suspect. Signal drift can occur as the instrument warms up, flushes with seawater, and the filter wheel spins up.

Id: 1792 By: swhite

CP04OSSM-RID27-01-OPTAAD000
Stream: optaa_dj_dcl_instrument
12/12/14, 4:47 PM

Per vendor feedback, the first 1-2 min of each AC-S instrument sampling period should be considered suspect. Signal drift can occur as the instrument warms up, flushes with seawater, and the filter wheel spins up.

Id: 1791 By: swhite

CP04OSSM
Method: telemetered
10/22/15, 3:38 PM 5/13/16, 1:18 PM

Fuel cell impacted available instrument power, so telemetered data are not available or reliable. Recovered data are available for instruments that could record internally.

Id: 1362 By: leila

CP04OSSM
Method: telemetered
1/30/19, 10:00 AM 4/8/19, 7:39 AM

CP04OSSM D00009 buoy broke free and went adrift on 1/30/2019, 1500UTC. All instruments on the MFN ceased telemetry on 1/30/2019 and instruments on the buoy/NSIF continued to sample through 2/1/2019. No more telemetered data expected for this deployment.

Id: 1557 By: cdobson

CP04OSSM-RID27-01-OPTAAD000
Stream: optaa_dj_dcl_instrument
9/29/19, 10:46 AM

The OPTAA burst duration was changed from 2 minutes to 4 minutes as of the start date/time of this annotation (start of Deployment 11).

Id: 1851 By: swhite

CP04OSSM-RID27-01-OPTAAD000
Stream: optaa_dj_dcl_instrument_recovered
9/29/19, 10:46 AM

The OPTAA burst duration was changed from 2 minutes to 4 minutes as of the start date/time of this annotation (start of Deployment 11).

Id: 1852 By: swhite

CP04OSSM-RID27
11/1/19, 8:00 PM 11/10/19, 7:00 PM

Deployment 11: Telemetered data from instruments on DCL27 not expected for date range 11/2/2019-11/11/2019 due to CE being locked up.

Id: 1807 By: cdobson

Review Notes

Metadata Start Date End Date Comment
CP04OSSM-RID27-01-OPTAAD000

According to Roesler and Barnard (Optical proxy for phytoplankton biomass in the absence of photophysiology: Rethinking the absorption line height, Methods in Oceanography, 2013), “absorption meters are highly prone to biofouling, particularly biofilms which not only attenuate the collimated beam but also impact the scattering properties of the optical surfaces and tubes. In productive coastal waters biofouling can have significant impacts (i.e. 10% of the signal) within one to two weeks”.

By Lori Garzio, on 6/28/19

CP04OSSM-RID27-01-OPTAAD000

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

By Lori Garzio, on 6/28/19

CP04OSSM-RID27-01-OPTAAD000
Deployment: 1

recovered_host data aren't expected - according to the ingest csv the raw data files are blank. This dataset should be annotated.

By Lori Garzio, on 6/28/19

CP04OSSM-RID27-01-OPTAAD000
Deployment: 5

wavelength_a and wavelength_c are arrays of fill values for this deployment. These variables should contain the measurement wavelengths.

By Lori Garzio, on 6/28/19

New Note