urn:ieda:metadataabout:10.15784-601178
eng
dataset
Dataset
Interdisciplinary Earth Data Alliance
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2019-05-17T14:36:00Z
ISO 19139 Geographic Information - Metadata - Implementation Specification
2007
CTD stations and logs for Araon 2018 ANA08D expedition to Larson C
2019-04-29
publication
doi:10.15784/601178
Pan, B. Jack
author
Vernet, Maria
Scripps Institution of Oceanography, La Jolla, CA, 92093, US
mvernet@ucsd.edu
author
U.S. Antarctic Program (USAP) Data Center
publisher
Abstract: Marine ecosystems under large ice shelves are thought to contain sparse, low-diversity plankton and seafloor communities due the low supply of food from productive sunlight waters. Past studies have shown sub-ice shelf ecosystems to change in response to altered oceanographic processes resulting from ice-shelve retreat. However, information on community changes and ecosystem structure under ice shelves are limited because sub-ice-shelf ecosystems have either been sampled many years after ice-shelf breakout, or have been sampled through small boreholes, yielding extremely limited spatial information. The recent breakout of the A-68 iceberg from the Larsen C ice shelf in the western Weddell Sea provides an opportunity to use a ship-based study to evaluate benthic communities and water column characteristics in an area recently vacated by a large overlying ice shelf. The opportunity will allow spatial assessments at the time of transition from an under ice-shelf environment to one initially exposed to conditions more typical of a coastal Antarctic marine setting.
This RAPID project will help determine the state of a coastal Antarctic ecosystem newly exposed from ice-shelf cover and will aid in understanding of rates of community change during transition. The project will conduct a 10-day field program, allowing contrasts to be made of phytoplankton and seafloor megafaunal communities in areas recently exposed by ice-shelf loss to areas exposed for many decades. The project will be undertaken in a collaborative manner with the South Korean Antarctic Agency, KOPRI, by participating in a cruise in March/May 2018. Combining new information in the area of Larsen C with existing observations after the Larsen A and B ice shelf breakups further to the north, the project is expected to generate a dataset that can elucidate fundamental processes of planktonic and benthic community development in transition from food-poor to food-rich ecosystems. The project will provide field experience to two graduate students, a post-doctoral associate and an undergraduate student. Material from the project will be incorporated into graduate courses and the project will communicate daily work and unfolding events through social media and blogs while they explore this area of the world that is largely underexplored.
funderName:NSF:GEO:PLR:Antarctic Organisms and Ecosystems
awardNumber:1822289
awardTitle:RAPID: Collaborative Research: Marine Ecosystem Response to the Larsen C Ice-Shelf Breakout: "Time zero"
Complete
Pan, B. Jack
pointOfContact
1
Chlorophyll
constituent
Sample Location
Station List
data type
CTD
instrument
Glacier
keyword
Phytoplankton
living thing
Iceberg
Ice Shelf
subject
Biology
Physical Oceanography
IEDA data type categories
IEDA integrated catalog keyword vocabulary
2017-10-11
creation
Antarctica
Sea Ice
Southern Ocean
IEDA feature of interest
IEDA integrated catalog keyword vocabulary
2017-10-11
creation
Biosphere
Cryosphere
Oceans
IEDA topic
IEDA integrated catalog keyword vocabulary
2017-10-11
creation
Larsen C Ice Shelf
place
US Antarctic Program Data Center (USAP-DC)
Data Center
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
eng
Larsen C Ice Shelf
-59.402149
-55.020546
-64.661118
-62.131908
2019-03-29
2019-04-24
http://dx.doi.org/10.15784/601178
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information
http://www.usap-dc.org/view/dataset/601178
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This metadata record was generated by an xslt transformation from a DataCite metadata record; The transform was created by Damian Ulbricht and Stephen M. Richard. 2017-11-15 these records include new IEDA keywords for geoportal facets Run on 2019-05-17T14:36:00Z
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