Spectrophotometer

Reference Designator
CP01CNSM-MFD37-01-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
133m
Class
OPTAA (Absorption Spectrophotometer)
Make / Model
WET Labs / AC-S

Dataset Reviews Last processed: 6/27/19, 12:27 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 149 89 0 59 0 0 381,965 134 / 1 2 3 Complete
2 telemetered 3 2 0 0 0 0 4,544 135 / 4 4 3 Complete
3 recovered_host 170 16 0 154 0 0 141,828 135 / 2 3 Complete
5 recovered_host 154 142 0 3 7 12 438,979 134 / 2 3 Complete
6 recovered_host 240 102 0 138 0 0 997,724 134 / 2 3 Complete
7 recovered_host 146 90 0 43 1 14 873,911 134 / 2 3 Complete
Data Ranges Review Images

Test Notes

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

Data Coverage

Deployment: 123567
67%
60%9%92%42%62%

Lat/Lon Differences (km)

Deployment: 123567
1 0.00
2 0.840.00
3 0.400.950.00
5 0.420.970.020.00
6 0.830.070.970.990.00
7 0.350.930.050.070.950.00

System Annotations

Metadata Start Date End Date Comment
CP01CNSM-MFD37-01-OPTAAD000
Stream: optaa_dj_dcl_instrument
11/21/13, 1:15 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: 1785 By: swhite

CP01CNSM-MFD37-01-OPTAAD000
Stream: optaa_dj_dcl_instrument_recovered
11/21/13, 1:15 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: 1786 By: swhite

CP01CNSM
2/16/14, 7:00 PM 4/17/14, 8:00 PM

Surface buoy exploded due to hydrogen build-up in well.

Id: 103 By: swhite
Flag: not_operational Exclude: No

CP01CNSM-MFD37-01-OPTAAD000
12/13/14, 1:47 PM 12/15/14, 3:58 PM

Data not recoverable.

Id: 512 By: leila

CP01CNSM
12/13/14, 1:47 PM 12/15/14, 3:58 PM

Deployment 2: Short deployment due to the fuel cell not functioning correctly. No data expected.

Id: 709 By: cdobson

CP01CNSM-MFD37
5/21/16, 8:00 PM 5/31/16, 8:02 AM

Issue observed with the Seafloor Multi-Function Node may have caused loss of data.

Id: 573 By: leila

CP01CNSM-MFD37
1/21/17, 7:00 PM 6/9/17, 11:00 AM

Multi-function Node was shut down due to low power.

Id: 105 By: lgarzio
Flag: not_operational Exclude: No

CP01CNSM-MFD37
12/20/17, 3:00 AM 3/24/18, 6:00 PM

Multi-Function Node was disabled due to shorting in the power.

Id: 337 By: leila
Flag: not_operational Exclude: No

CP01CNSM-MFD37
Method: telemetered
3/27/18, 11:03 PM 10/29/18, 9:48 PM

Deployment 9: An unexpected ground fault had occurred. Instruments with batteries will continue to collect data.

Id: 1364 By: leila
Flag: not_operational Exclude: No

CP01CNSM-MFD37
Method: telemetered
10/27/18, 9:00 AM 4/7/19, 2:08 PM

Deployment 10: Power to MFN was lost immediately after deployment. There will be no telemetered data for any MFN instruments for this deployment. Most impacted instruments will continue to collect data on battery power and be available as recovered data.

Id: 1558 By: cdobson
Flag: not_operational Exclude: No

CP01CNSM-MFD37
9/27/19, 2:00 PM

Deployment 12: Power issue hinders telemtered data transfer from all MFN instruments. Data from all internally logging instruments will be available on recovery.

Id: 1742 By: cdobson

CP01CNSM-MFD37-01-OPTAAD000
Stream: optaa_dj_dcl_instrument
9/27/19, 2:30 PM

The OPTAA burst duration was changed from 2 minutes to 4 minutes as of the start date/time of this annotation (start of Deployment 12).

Id: 1845 By: swhite

CP01CNSM-MFD37-01-OPTAAD000
Stream: optaa_dj_dcl_instrument_recovered
9/27/19, 2:30 PM

The OPTAA burst duration was changed from 2 minutes to 4 minutes as of the start date/time of this annotation (start of Deployment 12).

Id: 1846 By: swhite

Review Notes

Metadata Start Date End Date Comment
CP01CNSM-MFD37-01-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

CP01CNSM-MFD37-01-OPTAAD000

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

By Lori Garzio, on 6/28/19

CP01CNSM-MFD37-01-OPTAAD000

wavelength_a and wavelength_c are arrays of fill values for deployments 6 and 7. These variables should contain the measurement wavelengths.

By Lori Garzio, on 6/28/19

CP01CNSM-MFD37

Annotation IDs 1564 and 1565 are duplicates of annotation ID 1558.

By Lori Garzio, on 3/25/19

CP01CNSM
Deployment: 2

Annotation ID 709 "Short deployment due to the fuel cell not functioning correctly" should be updated to indicate that this refers to deployment 2, and data aren't expected from most instruments for this time period.

By Lori Garzio, on 3/22/19

CP01CNSM-MFD37-01-OPTAAD000
Deployment: 5

40%-43% of the beam_attenuation and optical_absorption values for this deployment are nans, fill values, outside of global ranges, or outliers (+/-5 SD).

By Lori Garzio, on 6/28/19

New Note