Dataset: SOLARIS Superoxide and Standard CTD Profiles

Name: SOLARIS superoxide and standard CTD profiles from the EMB276 cruise on R/V Elisabeth Mann Borgese in the Baltic Sea from September 20-27, 2021
Published: 2024-08-06
Keywords: superoxide, stratification, redox, oceans

View Data: Data not available yet

Cite This Dataset

Spatial Extent: N:56.63332 E:20.65052 S:56.0002 W:19.18302

Temporal Extent: 2021-09-20 - 2021-09-27

Project:

Collaborative Research: Manganese Cycling and Coupling Across Redox Boundaries within Stratified Basins of the Baltic Sea (MnIONS)

Principal Investigator:

Colleen Hansel (Woods Hole Oceanographic Institution, WHOI)

Scientist:

Lina Taenzer (Woods Hole Oceanographic Institution, WHOI)

Contact:

Lina Taenzer (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2024-08-06

Restricted:

Validated:

Current State:

Data not available

SOLARIS superoxide and standard CTD profiles from the EMB276 cruise on R/V Elisabeth Mann Borgese in the Baltic Sea from September 20-27, 2021

Abstract:

SOLARIS superoxide profiles and standard CTD profiles including oxygen, turbidity, fluorescence, temperature, and PAR data from seven stations in the Baltic Sea collected between September 20 - 27, 2021. Data was collected from the R/V Elisabeth Mann Borgese.

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Methods & Sampling

In situ measurements of superoxide were made with a superoxide sensor, SOLARIS, which has been previously described in detail in Taenzer et al., 2022. Superoxide is quantified using a chemiluminescent method where seawater is drawn in and combines with the chemiluminescent probe methyl Cypridina luciferin analog (MCLA) in a mixing cell. MCLA reacts specifically with superoxide, and the light that is produced is quantified by a photomultiplier. Data are collected at the frequency of 2 Hz, as raw counts.

Temperature, oxygen, salinity, photosynthetically active radiation (PAR), fluorescence, and turbidity were measured by a standard CTD package and associated rosette mounted sensors (Seabird 9/11+).

Data Processing Description

Superoxide data was depth-corrected using the descent speed of the CTD to account for the lag between when the water originally is drawn into the sampling wand and when it reaches the flow cell.

BCO-DMO Processing

* merged all profiles into 1 file
* merged depth into 1 column. Removed redundant and or faulty depths after discussion with submitter:
** GO32-cast1: removed SOLARIS_depth (redundant)
** TF260-cast3: removed Depth_m.
** GO23-cast4: removed SOLARIS_depth
** GO23-cast3: removed SOLARIS_depth (redundant)
** GO23-cast2: removed SOLARIS_depth
** TF271-cast1: removed Depth271Oxygen (redundant)
* standardized date formet (mm-dd-yy)
* added ISO DateTime parameter
* adjusted parameter names to comply with database requirements
* added station name, cast number and sampling location

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1924236

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
EMB276		2021-09-17	R/V Elisabeth Mann Borgese	Maren Voss (Chief Scientist)	data info

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name:

Supplied Description:

CTD package and associated rosette mounted sensors (Seabird 9/11+).

Instrument Type

Generic Name: CTD Sea-Bird SBE 911plus

Acronym: CTD SBE 911plus

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/

Generic Description:

The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics

SOLARIS

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: SOLARIS

Generic Description:

SOLARIS (Submersible Oceanic Luminescent Analyzer of Reactive Intermediate Species) is a superoxide detector that can be used at deeper depths (up to 4000 meters) and could be incorporated into a deep-sea sampling platform such as WHOI's submersible, Alvin. See: https://doi.org/10.3390/s22051709

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
cruise_name	Name of the cruise	unitless	cruise_name
station_name	Station name	unitless	sta_name
cast_number	Profile number	unitless	cast
latitude	Latitude of cast, south is negative	decimal degrees	lat
longitude	Longitude of cast, west is negative	decimal degrees	lon
Date	Date Format: %m-%d-%y	unitless	date
Time_Start_UTC	Start time if profile Format: %H:%M	unitless	time
ISO_DateTime_UTC	Datetime of start of profile in ISO notation (UTC, timezone) Format: %Y-%m-%dT%H:%MZ	unitless	ISO_DateTime_UTC
depth_m	Water column depth	meters (m)	depth
Superoxide_nM	Superoxide concentrations	nanomolar (nm)	superoxide
Oxygen_uM	Oxygen concentrations	micromolar (um)	O2
PAR	photosynthetically active radiation	mol?m ?2 ?s ?1.	PAR
Fluorescence	fluorescence measurements	mg/m^3	fluor
Turbidity_NTU	turbidity measurements	NTU (Nephelometric Turbidity Unit)	turbidity
Temp_C	temperature	degrees Celsius (°C)	temp
Salinity_PSU	salinity	PSU	sal

Status message

Database

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Dataset: SOLARIS Superoxide and Standard CTD Profiles