Determination of the regimes of production in the Antarctic sea-ice during SIPEX 2 using Si, N, and C stable isotope in-situ incubation experiments and 13C and 14C primary production method intercomparison
Overview of the project and objectives:
Assessing the contribution of the different N substrates to the primary production process, such as the biogenic silica production and dissolution in the Antarctic sea-ice provides a means to understand the biogeochemical system functioning. In such a semi closed-type system, assess incorporation rates of HCO3-, NO3-, NH4+, SiOH4, BSi dissolution, nitrification, C-release in close-by ice-cores (3 ice-cores dedicated to (i) 13C-assimilation + 15NH4+ uptake rate, (ii) 13C-assimilation + 15NO3- uptake rate and nitrification, (iii) Biogenic silica production and dissolution via 30Si isotope tool) will allow improving the knowledge of system functioning. This is also closely linked to the thematic of iron availability since these experiments are done close to / on the Trace Metal site allowing us to hopefully propose a relatively complete image of biogeochemical activity and relationship with trace metals on this site.
Methodology and sampling strategy:
Most of the time we worked close to / directly on the Trace Metal site following precautions concerning TM sampling (clean suits etc.). When we worked close to the TM site, precautions were not such important because we don't need the same drastic precautions for our own sampling. We work together because we want to propose a set of data which helps to characterize the system of functioning in close relation with TM availability (for that, sampling location have to be as close as possible). 14C and 13C-incubation experiment intercalibration work were conducted on the Biosite (different place than TM site except for station 7)
Incubation experiment samples are analyzed via (1) Elemental Analyzer - Isotope Ratio Mass Spectrometer (EA-IRMS) for carbon and nitrogen (VUB, Brussels, Belgium); (2) High Resolution Inductively Coupled Mass Spectrometer (HR-ICPMS) for silicon (RMCA, Brussels, Belgium).
Simple
Identification info
- Alternate title
- Determination of the regimes of production in the Antarctic sea-ice during SIPEX 2 using Si, N, and C stable isotope in-situ incubation experiments and 13C and 14C primary production method intercomparison
- Date (Publication)
- 2013-05-08
- Edition
- 1
Originator
Publisher
Principal investigator
Principal investigator
Principal investigator
Principal investigator
Principal investigator
Principal investigator
Collaborator
Collaborator
Collaborator
Collaborator
Collaborator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
- Topic category
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- Oceans
Extent
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2012-09-25 2012-11-01
- NASA/GCMD Earth Science Keywords
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- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA
- EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBONATE
- Keywords
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- Isotopes
- NASA/GCMD Earth Science Keywords
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- CORING DEVICES
- NASA/GCMD Earth Science Keywords
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- R/V AA > R/V Aurora Australis
- LABORATORY
- NASA/GCMD Earth Science Keywords
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- AMD
- AMD/AU
- CEOS
- ACE/CRC
- NASA/GCMD Earth Science Keywords
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- CONTINENT > ANTARCTICA
- OCEAN > SOUTHERN OCEAN
- GEOGRAPHIC REGION > POLAR
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- These data are linked to the parent record SIPEX_II_Stable_Isotopes
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=SIPEX_II_Stable_Isotopes_Si_N_C when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
- OnLine resource
-
PROJECT HOME PAGE
Public information for ASAC project 4051
- OnLine resource
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PROJECT HOME PAGE
Public information for ASAC project 4073
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
Resource lineage
- Statement
- Each eventual parameter important for global comprehension of the dataset is highlighted as comment, when needed, in the Final Sample List.xls file (see parent record).
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2013-05-08 - record created by Dave Connell from a template completed by Anne-Julie Cavagna. 2019-07-15 - record updated by Dave Connell - basic updates.
Metadata
- Metadata identifier
- string/SIPEX_II_Stable_Isotopes_Si_N_C
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
- Title
- Parent Metadata Record
- Citation identifier
- SIPEX_II,SIPEX_II_Stable_Isotopes
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 51bf38ea-5db7-436c-a07d-42c7de07c173
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2019-07-15T14:49:56
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/SIPEX_II_Stable_Isotopes_Si_N_C
Point of truth for the metadata record
- Date info (Creation)
- 2013-05-08T00:00:00
- Date info (Last Update)
- 2019-07-15
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile