TemperateReefBase Geonetwork Catalogue
Impact of changes in sea ice extent on primary productivity in the Southern Ocean: links between the iron and carbon cycles in fast ice and the marginal ice zone
A times series of data was collected from coastal (land-fast) sea ice at Davis Station, Eastern Antarctica (68 degrees 34' 36" S, 77 degrees 58' 03" E; Figure 1) from November 16 to December 2, 2015. Sea ice temperature and salinity, as well as macro-nutrients (nitrate NO3-, nitrite NO2-, ammonium NH4+, phosphate PO43- and DSi), particulate organic carbon (POC) and chlorophyll a (Chla) in the sea ice were measured six times in 16 days of austral spring and early summer (Nov. 16, Nov. 20, Nov. 23, Nov. 26, Nov. 29, and Dec. 2; in days of the year, 320, 325, 327, 330, 333, and 336). Depths were measured from the top of the ice cores. Seawater below the ice was also sampled for comparison.
Samples of snow, sea ice, brine and under-ice seawater were collected under trace metal clean conditions near Davis station during the transition of sea ice from winter to spring conditions (October 2015), on a regular basis (every 4 days) for 3 weeks. 6 sampling events were successfully achieved. The list of parameters collected during the fast ice study include in situ temperature, ice texture, pH, oxygen, iron and Chla, Br/I, carbonate, nutrients and POC, incubations with stable N and C isotopes. Samples are currently returning on V3 and will be analysed in the US, Belgium and Australia in the coming months. The biogeochemical observations will allow us to determine the roles of light versus iron in the initiation of the spring bloom in this region, and the role of the melting fast ice in fertilising the spring time primary production.
Simple
Identification info
- Alternate title
- Impact of changes in sea ice extent on primary productivity in the Southern Ocean: links between the iron and carbon cycles in fast ice and the marginal ice zone
- Date (Publication)
- 2020-01-13
- Edition
- 1
- Citation identifier
-
Dataset DOI
- Title
- Information and documentation - Digital object identifier system
- Date (Publication)
- 2012-04-23
- Citation identifier
- ISO 26324:2012
- Citation identifier
- doi:10.4225/15/59796110a5da6
Originator
Publisher
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Purpose
- The goal of this study is to understand the biogeochemical processes that influence primary production in fast ice during a spring to early summer time series
- Status
- Completed
Custodian
- Topic category
-
- Environment
- Oceans
Extent
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2015-11-16 2015-12-02
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > CRYOSPHERE > SEA ICE
- EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE ROUGHNESS
- EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE TEMPERATURE
- EARTH SCIENCE > OCEANS > SEA ICE
- EARTH SCIENCE > OCEANS > SEA ICE > ICE ROUGHNESS
- EARTH SCIENCE > OCEANS > SEA ICE > ICE TEMPERATURE
- Keywords
-
- BIOGEOCHEMISTRY
- BIOMASS
- MACRONUTRIENTS
- THERMODYNAMICS
- TIME SERIES
- DAVIS STATION
- NASA/GCMD Earth Science Keywords
-
- TEMPERATURE PROBES
- CONDUCTIVITY METERS
- CHNS/O ELEMENTAL ANALYZERS > Carbon, Hydrogen, Nitrogen Elemental Analyzers
- FLUOROMETERS
- NASA/GCMD Earth Science Keywords
-
- GROUND STATIONS
- NASA/GCMD Earth Science Keywords
-
- ACE/CRC
- AMD/AU
- AMD
- CEOS
- NASA/GCMD Earth Science Keywords
-
- GEOGRAPHIC REGION > POLAR
- CONTINENT > ANTARCTICA > Davis Station
- OCEAN > SOUTHERN OCEAN
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- These data are publicly available for download from the provided URL.
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=AAS_4291_seaicebgc when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- Free
- Planned available datetime
- 2020-01-13T00:00:00
- Units of distribution
- kb
- Transfer size
- 12
- Distribution format
-
- Excel
- OnLine resource
-
GET DATA > DIRECT DOWNLOAD
Download the data
- OnLine resource
-
PROJECT HOME PAGE
Public information for AAS project AAS_4291
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset.
- Maintenance and update frequency
- As needed
- Maintenance note
- 2017-07-27 - record created by Delphine Lannuzel. 2018-02-19 - record updated by Dave Connell - basic updates. 2020-01-13 - record updated by Dave Connell to publicly release the data.
Metadata
- Metadata identifier
- string/AAS_4291_seaicebgc
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 3e80b217-9a08-4e5a-99bb-31527e5339cc
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2020-01-13T15:57:53
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/AAS_4291_seaicebgc
Point of truth for the metadata record
- Date info (Creation)
- 2017-07-26T00:00:00
- Date info (Last Update)
- 2020-01-13
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile
Overviews
Spatial extent
Provided by
