Processes regulating iron supply at the mesoscale - Ross Sea
Federal Geographic Data Committee (FGDC) Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: Unknown
- Publication_Date: Unknown
- Title: Processes regulating iron supply at the mesoscale - Ross Sea
- Description:
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- Abstract:
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The Ross Sea continental shelf is one of the most productive areas in the Southern Ocean, and may comprise a significant,
but unaccounted for, oceanic CO2 sink, largely driven by phytoplankton production. The processes that control the magnitude
of primary production in this region are not well understood, but data suggest that iron limitation is a factor. Field observations
and model simulations indicate four potential sources of dissolved iron to surface waters of the Ross Sea: (1) Circumpolar
Deep Water (CDW) intruding from the shelf edge; (2) sediments on shallow banks and nearshore areas; (3) melting sea ice around
the perimeter of the polynya; and (4) glacial meltwater from the Ross Ice Shelf. The principal investigators hypothesize that
hydrodynamic transport via mesoscale currents, fronts, and eddies facilitate the supply of dissolved iron from these four
sources to the surface waters of the Ross Sea polynya.
These hypotheses will be tested through a combination of in situ observations and numerical modeling, complemented by satellite
remote sensing. In situ observations will be obtained during a month-long cruise in the austral summer. The field data will
be incorporated into model simulations, which allow quantification of the relative contributions of the various hypothesized
iron supply mechanisms, and assessment of their impact on primary production. The research will provide new insights and a
mechanistic understanding of the complex oceanographic phenomena that regulate iron supply, primary production, and biogeochemical
cycling. The research will thus form the basis for predictions about how this system may change in a warming climate.
- Purpose:
- Not Available
- Supplemental_Information:
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- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: As needed
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- Description_of_Geographic_Extent:
- Bounding_Coordinates:
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- West_Bounding_Coordinate: Not Available
- East_Bounding_Coordinate: Not Available
- North_Bounding_Coordinate: Not Available
- South_Bounding_Coordinate: Not Available
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
- Theme_Keyword_Thesaurus: PROJECT
- Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
- Theme_Keyword_Thesaurus: DATA SET LANGUAGE
- Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > BIOGEOCHEMICAL CYCLES
- Theme_Keyword: EARTH SCIENCE > OCEANS > SEA ICE > SNOW MELT
- Theme_Keyword: IMBER > INTEGRATED MARINE BIOGEOCHEMISTRY AND ECOSYSTEM RESEARCH
- Theme_Keyword: PRISM-RS > PROCESSES REGULATING IRON SUPPLY AT THE MESOSCALE - ROSS SEA
- Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
- Theme_Keyword: OCEANS
- Theme_Keyword: ENGLISH
- Access_Constraints: Not Available
- Use_Constraints:
- Not Available
- Point_of_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: DENNIS MCGILLICUDDY
- Contact_Position: INVESTIGATOR
- Contact_Address:
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- Address_Type: Mailing and Physical Address
- Address: WHOI
- City: Woods Hole
- State_or_Province: MA
- Postal_Code: 02543
- Country: USA
- Contact_Voice_Telephone: +1 508 289 2683
- Contact_Facsimile_Telephone: +1 508 457 2194
- Contact_Electronic_Mail_Address: mcgillic@whoi.edu
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- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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- Logical_Consistency_Report:
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- Completeness_Report:
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- Lineage:
- Process_Step:
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- Process_Description:
- Not Available
- Process_Date: Unknown
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- Spatial_Reference_Information:
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- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: BCO-DMO > Biological and Chemical Oceanography Data Management Office
- Contact_Person: CINDY CHANDLER
- Contact_Position: DATA CENTER CONTACT
- Contact_Address:
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- Address_Type: Mailing and Physical Address
- Address: WHOI
- City: Woods Hole
- Country: USA
- Resource_Description: PRISM-RS
- Distribution_Liability:
- Not Available
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- Online_Option:
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- Network_Resource_Name:
- http://osprey.bco-dmo.org/project.cfm?flag=viewr&i...
- Access_Instructions:
- Fees: Not Available
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- Metadata_Reference_Information:
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- Metadata_Date: 20111216
- Metadata_Review_Date: 20180205
- Metadata_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: GCMD User Support Office
- Contact_Organization: NASA Global Change Master Directory
- Contact_Address:
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- Address_Type: Mailing and Physical Address
- Address: Not Available
- City: Lanham
- State_or_Province: MD
- Postal_Code: 20706
- Country: USA
- Contact_Voice_Telephone: Not Available
- Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
- Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
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