Reference Designator
Start Depth
End Depth
Multi-Function Node
Current Status
Review Complete
OPTAA (Absorption Spectrophotometer)
Science Discipline
WET Labs
AC-S Deep
M2M Example
Method Data Stream Content Type
recovered_host optaa_dj_dcl_instrument_recovered Data Products Report M2M Stats Science
recovered_host optaa_dj_dcl_metadata_recovered Metadata Report M2M Engineering
telemetered optaa_dj_dcl_instrument Data Products Report M2M Stats Science
telemetered optaa_dj_dcl_metadata Metadata Report M2M Engineering
Deployment Cruise Start Date Stop Date Mooring Asset Node Asset Sensor Asset Latitude Longitude Deployment Depth Water Depth
1 Review OC1503D 04/09/2015 09/25/2015 CGMCE-09OSSM-00001 CGINS-OPTAAC-00142 46.8539 -124.958 542 542
2 Review OC1510A 10/15/2015 05/07/2016 CGMCE-09OSSM-00002 CGINS-OPTAAC-00249 46.8531 -124.954 542 542
4 Review AT37-03 09/20/2016 04/14/2017 CGMCE-09OSSM-00004 CGINS-OPTAAC-00266 46.8508 -124.972 542 542
5 Review SKQ201704S 04/12/2017 10/06/2017 CGMCE-09OSSM-00005 CGINS-OPTAAC-00142 46.8529 -124.959 542 542
6 Review SKQ201715S 10/04/2017 03/30/2018 CGMCE-09OSSM-00006 CGINS-OPTAAC-00249 46.8478 -124.984 542 542
8 Review SR1813 09/19/2018 04/25/2019 CGMCE-09OSSM-00008 CGINS-OPTAAC-00142 46.849 -124.978 542 542
9 Review SKQ201910S 04/24/2019 10/13/2019 CGMCE-09OSSM-00009 CGINS-OPTAAC-00266 46.8527 -124.954 542 542
10 Review SKQ201921S 10/11/2019 CGMCE-09OSSM-00010 CGINS-OPTAAC-00249 46.865 -124.948 542 542
Metadata Start Date End Date Comment

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


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

By Lori Garzio, on 6/28/19

Deployment: 2

There are no data available for download from this deployment. According to the ingest csv, data aren't expected because the DCL failed. This should be annotated in the system.

By Lori Garzio, on 6/28/19

New Note

Metadata Start Date End Date Comment
4/9/15, 1:30 PM

Per vendor feedback, the first 1-2 min of each OPTAA 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. Users are encouraged to delete the first minute of data, at a minimum, from each measurement burst and then calculate a median average of the remaining data from the burst before working further with the OPTAA data.

Id: 2101 By: wingardc

1/21/17, 7:00 PM 4/14/17, 8:00 PM

The high voltage lines providing power to the MFN via the CVT for CE09OSSM-00004 shorted out on 2017-01-22 at 08:31 UTC. Sea state was high, but not unusual for this time of year. Disabled future power scheduling to the MFN and applied an override to disable the CVT. No further data will be logged from the instruments on the MFN. This affects:
On DCL35:
* ADCPS (had already failed upon deployment)
* PCO2W -- should continue to autosample
* PHSEN -- should continue to autosample
* PRESF -- should continue to autosample
* VEL3D -- should continue to autosample
On DCL37
* CTDBP (plus DOSTA) -- should continue to autosample
* ZPLSC -- had stopped reporting data early on in deployment, may still be autosampling

Id: 930 By: michaesm
Flag: not_available Exclude: No

Method: telemetered
6/26/19, 8:40 PM

The high voltage power supply providing power to the seafloor dataloggers and instrumentation failed for reasons unknown at this time. No further telemetered data will be available for this deployment.

Id: 1696 By: wingardc
Flag: not_operational Exclude: No

10/11/19, 7:30 PM

The OPTAA burst duration was changed from 2 minutes to 4 minutes beginning 2019-10-11T23:30:00 UTC.

Id: 1876 By: wingardc

Method: telemetered
11/3/19, 3:45 AM

Power to the seafloor sensors failed. With the exception of the VEL3D and OPTAA, the sensors on the seafloor platform should continue to autonomously sample for the remainder of deployment. Until we recover and redeploy the mooring in the spring of 2020, no further telemetered data will be available from the seafloor sensors.

Id: 1763 By: wingardc
Flag: not_operational Exclude: No

Method: telemetered
5/9/20, 8:40 PM 5/10/20, 8:00 PM

Due to a bug in the mooring telemetry system, data during this time range was not telemetered to shore. It was recorded on the mooring and instruments and will be available in the recovered data streams.

Id: 2182 By: wingardc
Flag: not_available Exclude: No