Bathymetry and Ice draft maps for the Amery Ice Shelf cavity

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Galton-Fenzi, B.K., Coleman, R. and Maraldi, C.
Publication_Date: 20120504
Title: Bathymetry and Ice draft maps for the Amery Ice Shelf cavity
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name: CAASM Metadata
Issue_Identification:
Publication_Information:
Publication_Place:
Publisher: Australian Antarctic Data Centre
Other_Citation_Details:
Online_Linkage: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD/AU/AIS_GEOM
Description:
Abstract:
Ocean circulation beneath ice shelves and associated rates of melting and freezing are influenced strongly by water column thickness and depth. The shape of the cavity beneath the Amery Ice Shelf is important for our understanding of ice shelf stability and freshwater input to the ocean and their dependence on climate. New seismic surveys of the centre region of the Amery Ice Shelf and ice-draft data taken at the grounding line has provided a considerable amount of new water-column thickness and bathymetry data. The data is adjusted in the unknown region south of 71 degrees 35 minutes S by comparing the complex error between simulated tides against in situ GPS observations. A finite element, hydrodynamic ocean tide model is used to simulate the 4 major constituents (S2, M2, K1 and O1). The new data differs from a previous bathymetry map in a number of places. Significantly, there is channel that leads from the Prydz bay depression into the deepest part of the AIS cavity in the south through a series of depressions. This technique has particular application when the water column beneath ice shelves is inaccessible and in situ GPS data is available.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Galton-Fenzi, B. K., C. Maraldi, R. Coleman and J. Hunter 2007 The Geometry of the cavity beneath the Amery Ice Shelf, East Antarctica Geophys. Res. Lett.
Supplemental_Information:
REFERENCE: Maraldi, C., B. Galton-Fenzi, F. Lyard, and L. Testut 2007 Barotropic Tides of the Southern Indian Ocean and the Amery Ice Shelf Cavity Geophys. Res. Lett. 10.1029/2007GL030900 in press
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19500101
Ending_Date: 20060401
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 66.0
East_Bounding_Coordinate: 79.0
North_Bounding_Coordinate: -66.0
South_Bounding_Coordinate: -73.6
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ICE DEPTH/THICKNESS
Theme_Keyword: EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > GROUND ICE
Theme_Keyword: AIRCRAFT
Theme_Keyword: SHIPS
Theme_Keyword: TIDE GAUGES
Theme_Keyword: GPS > GLOBAL POSITIONING SYSTEM
Theme_Keyword: AIRSAR > AIRBORNE SYNTHETIC APERTURE RADAR
Theme_Keyword: SEISMIC REFLECTION PROFILERS
Theme_Keyword: SEISMOGRAPHS
Theme_Keyword: SEISMOMETERS
Theme_Keyword: IFSAR > INTERFEROMETRIC SYNTHETIC APERTURE RADAR
Theme_Keyword: Amery Ice Shelf
Theme_Keyword: Ice Draft
Theme_Keyword: Grounding Line
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: OCEAN > SOUTHERN OCEAN
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: These data are publicly available for download from the provided URL.
Use_Constraints:
This data set conforms to the PICCCBY Attribution License (http://creativecommons.org/licenses/by/3.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AIS_GEOM when using these data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: BEN K GALTON-FENZI
Contact_Person_Primary:
Contact_Person: RICHARD COLEMAN
Contact_Person_Primary:
Contact_Person: CLAIRE MARALDI
Contact_Position: INVESTIGATOR
Contact_Position: TECHNICAL CONTACT
Contact_Position: DIF AUTHOR
Contact_Position: TECHNICAL CONTACT
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: ACE CRC
Address: Private bag 80
City: Hobart
State_or_Province: Tasmania
Postal_Code: 7001
Country: Australia
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Centre for Spatial Information Science
Address: School of Geography and Environmental Studies
Address: University of Tasmania
Address: Private Bag 76
City: Hobart
State_or_Province: Tasmania
Postal_Code: 7001
Country: Australia
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Voice_Telephone: +61 3 6226 2251
Contact_Voice_Telephone: +61 3 6226 2108
Contact_Facsimile_Telephone: +61 3 6226 2973
Contact_Facsimile_Telephone: +61 3 6224 0282
Contact_Electronic_Mail_Address: bkgalton@utas.edu.au
Contact_Electronic_Mail_Address: Richard.Coleman@utas.edu.au
Contact_Electronic_Mail_Address: maraldi@notos.cst.cnes.fr
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The data were gridded onto a WGS84 projection with a 2x2 km resolution. Horizontal datum: WGS84 Vertical datum: Mean sea level
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: Not Available
Altitude_Resolution: 50 m
Altitude_Distance_Units: Not Available
Altitude_Encoding_Method: Implicit coordinate
Depth_System_Definition:
Depth_Datum_Name: Not Available
Depth_Resolution: 50 m
Depth_Distance_Units: Not Available
Depth_Encoding_Method: Implicit coordinate
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: AU/AADC > Australian Antarctic Data Centre, Australia
Contact_Person: DATA OFFICER AADC
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Australian Antarctic Division
Address: 203 Channel Highway
City: Kingston
State_or_Province: Tasmania
Postal_Code: 7050
Country: Australia
Contact_Voice_Telephone: +61 3 6232 3244
Contact_Facsimile_Telephone: +61 3 6232 3351
Contact_Electronic_Mail_Address: metadata@aad.gov.au
Resource_Description: AIS_GEOM
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: text, pdf
Transfer_Size: 4.7 MB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au/aadc/portal/download_file.c...
Access_Instructions:
Download point for the data - text files
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au/aadc/metadata/citation.cfm?...
Access_Instructions:
Citation reference for this metadata record and dataset
Fees: Free
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Metadata_Reference_Information:
Metadata_Date: 20070823
Metadata_Review_Date: 20141202
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: BEN K GALTON-FENZI
Contact_Position: INVESTIGATOR
Contact_Position: TECHNICAL CONTACT
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: ACE CRC
Address: Private bag 80
City: Hobart
State_or_Province: Tasmania
Postal_Code: 7001
Country: Australia
Contact_Voice_Telephone: +61 3 6226 2251
Contact_Facsimile_Telephone: +61 3 6226 2973
Contact_Electronic_Mail_Address: bkgalton@utas.edu.au
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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