High-resolution survey of marine dimethylsulfide (DMS) in contrasted marine environments of the Canadian Arctic during the 2016 oceanographic ArcticNet/NETCARE campaign

The Arctic Ocean in summer is thought to be a nexus of biogenic dimethylsulfide (DMS) production associated, in part, with diversified niches within or bordering dynamic sea-ice where DMS-rich microbial communities may thrive. However, critical uncertainties remain regarding the strength of sources, sinks and efflux of marine DMS in the Arctic. Quantifying contemporary oceanic reservoirs of DMS is pivotal for the prediction and interpretation of future reservoirs of this climate-active compound. While a global DMS database of ca. 50,000 points exists, only 2.5% of these inputs originate from Arctic oceans highlighting the relevance of continued sampling efforts particularly in the context of rapid and conspicuous climate alterations in this part of the Global Ocean. A joint NETCARE-ArcticNet campaign aboard the CCGS Amundsen during July and August 2016 served as the launching platform for the deployment of a high frequency autonomous underway DMS sampling instrument (MIMS – Membrane Inlet Mass Spectrometer). Providing real-time data, the MIMS allowed the detection of surface reservoirs of oceanic DMS at greater spatial and temporal scales than traditional single-sample gas chromatography analysis, in conjunction with measurements of temperature, salinity and fluorescence (water line TSG sensor)

Simple

Date (Publication)
2018-10-31
Principal investigator
 

Levasseur, Maurice
Originator
 

Lizotte, Martine
ri_419
 

Massé, Guillaume
Other citation details

Levasseur, M., Lizotte, M. and Massé, G. (2018). High-resolution survey of marine dimethylsulfide (DMS) in contrasted marine environments of the Canadian Arctic during the 2016 oceanographic ArcticNet/NETCARE campaign. Canadian Cryospheric Information Network (CCIN).

Unpublished data.
Purpose

Conspicuous alterations in the Arctic Ocean are underway and include reductions in snow cover as well as sea ice extent and thickness, the occurrence of which is linked to profound modifications in light availability in surface waters below the ice and at its margin. How these physical changes will impact the dynamics of bloom-forming micro-organisms and their production of the biogenic climate-active gas dimethylsulfide (DMS) are still unknown. Within both ArcticNet and NETCARE research programs, questions such as : "What are the relative contributions of marginal ice blooms, under ice blooms and melt ponds to the production and sea-air exchanges of DMS?" and “What is the relationship between phytoplankton blooms and DMS production/emission in Arctic waters?” are explored during this 2016 field season.
Status
Under development
Point of contact
 

Canadian Cryospheric Information Network

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Polar Data Catalogue

200 University Avenue West, University of Waterloo

 ,

Waterloo

 ,

Ontario

 ,

N2L 3G1

 ,

Canada
(519) 888-4567 x32689
polardata.ca

Polar Data Catalogue Thesaurus (Canada)

  • Baffin Bay

  • Barrow Strait

  • Chlorophyll

  • Dimethylsulfide (DMS)

  • Ice

  • Ice margin

  • Nares Strait

  • Salinity

  • Temperature
Place

  • Baffin Bay, Nares Strait, Kennedy Channel, Kane Basin, Victoria Strait, Lancaster Sound, Barrow Strait, Queen Maud Gulf, Parry Channel (Nunavut, Canada)
Access constraints
Other restrictions
Use constraints
Other restrictions
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Terms of Use of the Polar Data Catalogue: https://www.polardata.ca/pdcinput/public/termsofuse

Metadata language

eng; CAN
Topic category
  • Environment
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Begin date
2016-07-23
End date
2016-08-19
Supplemental Information

Summary: Not Applicable Research Program(s): ArcticNet,Other. For further information: maurice.levasseur@bio.ulaval.ca maurice.levasseur@bio.ula Summary: Not Applicable Research Program(s): ArcticNet,Other. For further information: maurice.levasseur@bio.ulaval.ca

martine.lizotte@qo.ula martine.lizotte@qo.ulaval.ca

Distribution format

  • Digital file

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    1.0

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Distributor
 

Canadian Cryospheric Information Network

 -

Polar Data Catalogue

200 University Avenue West, University of Waterloo

 ,

Waterloo

 ,

Ontario

 ,

N2L 3G1

 ,

Canada
(519) 888-4567 x32689
Included with dataset
No
File identifier
ca91884e-0452-41f4-a46d-ccdbf243a5fc XML
Metadata language

eng; CAN
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2022-04-08T13:01:16
Metadata standard name

North American Profile of ISO 19115:2003
Metadata standard version

2009-01-01
Point of contact
 

Canadian Cryospheric Information Network

 -

Polar Data Catalogue

200 University Avenue West, University of Waterloo

 ,

Waterloo

 ,

Ontario

 ,

N2L 3G1

 ,

Canada
(519) 888-4567 x32689
Dataset URI

https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=12965

 
 

Overviews

overview

Spatial extent

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Keywords

Polar Data Catalogue Thesaurus (Canada)
Baffin Bay Barrow Strait Chlorophyll Dimethylsulfide (DMS) Ice Ice margin Nares Strait Salinity Temperature

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