Spectrophotometer

Reference Designator
CP03ISSM-MFD37-01-OPTAAD000
Start Depth
91.5
End Depth
91.5
Location
Multi-Function Node
Current Status
Review Complete
Class
OPTAA (Absorption Spectrophotometer)
Series
OPTAA-D
Science Discipline
Biological
Make
WET Labs
Model
AC-S
M2M Example
https://ooinet.oceanobservatories.org/api/m2m/12576/sensor/inv/CP03ISSM/MFD37/01-OPTAAD000/metadata
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 KN-224 12/14/2014 10/30/2015 CGMCP-03ISSM-00001 CGINS-OPTAAD-00159 40.3619 -70.878 93 94
2 Review AT-27 05/09/2015 10/21/2015 CGMCP-03ISSM-00002 CGINS-OPTAAD-00130 40.3595 -70.8853 96 97
3 Review AT-31 10/21/2015 05/14/2016 CGMCP-03ISSM-00003 CGINS-OPTAAD-00257 40.3647 -70.8884 95 96
4 Review AR-04 05/28/2016 10/15/2016 CGMCP-03ISSM-00004 CGINS-OPTAAD-00151 40.3595 -70.885 94 95
5 Review AR-08 10/11/2016 06/15/2017 CGMCP-03ISSM-00005 CGINS-OPTAAD-00209 40.3619 -70.8783 91 92
6 Review AR-18 06/15/2017 11/01/2017 CGMCP-03ISSM-00006 CGINS-OPTAAD-00151 40.3671 -70.8816 92 93
11 Review AR-39 09/26/2019 CGMCP-03ISSM-00011 CGINS-OPTAAD-00205 40.3594 -70.8851 92 93
Metadata Start Date End Date Comment
CP03ISSM-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

CP03ISSM-MFD37-01-OPTAAD000

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

By Lori Garzio, on 6/28/19

CP03ISSM-MFD37-01-OPTAAD000
Deployment: 1

recovered_host data aren't available for download from deployment 1. According to the ingest csv, the raw data files aren't expected. This dataset should be annotated to explain why the recovered_host data aren't available.

By Lori Garzio, on 6/28/19

CP03ISSM-MFD37-01-OPTAAD000
Deployment: 2

98% 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-MFD37-01-OPTAAD000
Deployment: 6

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

Metadata Start Date End Date Comment
CP03ISSM-MFD37-01-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: 1789 By: swhite

CP03ISSM-MFD37-01-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: 1790 By: swhite

CP03ISSM-MFD37
2/1/17, 9:00 PM 3/29/17, 10:00 PM

All seafloor Multi-Function Node (MFD35 and MFD37) instruments have ceased data telemetry because the seafloor multi-function node had a high voltage ground fault and has been shut down to protect the instruments.

Id: 570 By: leila

CP03ISSM-MFD37
12/20/17, 4:00 AM 3/28/18, 12:56 PM

Deployment 7: Multi-Function Node failed.

Id: 335 By: leila
Flag: not_operational Exclude: No

CP03ISSM-MFD37-01-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: 1849 By: swhite

CP03ISSM-MFD37-01-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: 1850 By: swhite

CP03ISSM-MFD37
12/26/19, 7:00 PM

Deployment 11: *UPDATED 2020-06-22: As of 2020-05-05 the ISSM MFN is back online in a reduced power usage mode. All MFN instruments will be powered on and sample 4 times a day (as opposed to 6 times a day). Data from this instruments will be telemetered home with the exception of the OPTAA which will only be availabe upon recovery. *UPDATED 2020-04-27: The MFN has been offline since 2019-01-03 and no telemetered data are expected from MFN instruments for the remainder of the deployment.*MFN offline due to power shortage after WT2 failure from 12/27/2019 to 12/30/2019 and again from 1/3/2019 to 1/6/2019. Instruments with external batteries will continue to log data internally.

Id: 1878 By: cdobson

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