Spectrophotometer

Reference Designator
CP03ISSM-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 17 15 0 1 0 0 57,874 7 / 1 1 2 Complete
2 recovered_host 166 110 0 0 2 57 1,060,552 7 / 3 4 2 Complete
3 recovered_host 207 207 0 0 0 0 859,294 7 / 3 4 2 Complete
4 recovered_host 141 141 0 0 0 0 584,103 7 / 3 4 2 Complete
5 recovered_host / Complete
6 recovered_host 140 127 0 0 1 14 1,239,322 7 / 3 4 2 Complete
7 recovered_host 148 148 0 0 0 0 1,456,296 7 / 3 4 2 Complete
Data Ranges Review Images

Test Notes

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

Data Coverage

Deployment: 1234567
88%
66%100%100%91%100%

Lat/Lon Differences (km)

Deployment: 1234567
1 0.00
2 0.640.00
3 0.880.630.00
4 0.620.030.650.00
6 0.600.900.640.890.00
7 0.690.060.680.070.960.00

System Annotations

Metadata Start Date End Date Comment
CP03ISSM-RID27-01-OPTAAD000
12/14/14, 1:52 PM 12/29/14, 7:00 PM

No recovered host data available.

Id: 458 By: leila

CP03ISSM-RID27-01-OPTAAD000
Stream: optaa_dj_dcl_instrument
12/14/14, 1:52 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: 1787 By: swhite

CP03ISSM-RID27-01-OPTAAD000
Stream: optaa_dj_dcl_instrument_recovered
12/14/14, 1:52 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: 1788 By: swhite

CP03ISSM-RID27
Method: telemetered
6/17/18, 4:04 PM 10/26/18, 3:52 PM

Data telemetry disabled due to chronic issues with power generation and management. The instruments could be revived to send data via telemetry when sufficient power is available. Note: Instruments may continue to collect data on internal battery power.

Id: 1509 By: leila

CP03ISSM-RID27-01-OPTAAD000
Stream: optaa_dj_dcl_instrument
9/26/19, 9:50 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: 1847 By: swhite

CP03ISSM-RID27-01-OPTAAD000
Stream: optaa_dj_dcl_instrument_recovered
9/26/19, 9:50 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: 1848 By: swhite

CP03ISSM
1/7/20, 7:00 PM

Deployment 11: UPDATED 2020-04-27: As of 2020-03-12 telemetered data for most instruments are being sent home via Iridium. A gap in telemetered data is expected between 2020-01-08 and 2020-03-12 and will not be backfilled but these data will be available upon recovery.* As of 2020-01-08 both fleet broadband telemetry pathways have failed and data can no longer be telemetered to shore from this mooring. Instruments will continue to log data which will be available upon recovery.

Id: 1889 By: cdobson
Flag: not_operational Exclude: No

Review Notes

Metadata Start Date End Date Comment
CP03ISSM-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

CP03ISSM-RID27-01-OPTAAD000

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

By Lori Garzio, on 6/28/19

CP03ISSM-RID27-01-OPTAAD000
Deployment: 1

optical_absorption is an array of fill values for this deployment.

By Lori Garzio, on 6/28/19

CP03ISSM-RID27-01-OPTAAD000
Deployment: 2

97% of the 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

CP03ISSM-RID27-01-OPTAAD000
Deployment: 4

38%-44% 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

CP03ISSM-RID27-01-OPTAAD000
Deployment: 5

In one of the deployment 5 recovered_host netcdf files (in the location attached), the wavelength dimension is an array of -9999999. The wavelength dimension in the other 2 files from that deployment is an index from 0-88.

By Lori Garzio, on 6/27/19

CP03ISSM-RID27-01-OPTAAD000
Deployment: 7

47% and 68% 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