Close

Service Interruption



Iceberg Harmonic Tremor, Seismometer Data, Antarctica

View Catalog Page


Metadata Entity Set Information:

Language:

eng; usa

Character Set:

Value: UTF8
CodeList: MD_CharacterSetCode

Hierarchy Level:

Value: dataset
CodeList: MD_ScopeCode

Hierarchy Level Name:

Iceberg Harmonic Tremor, Seismometer Data, Antarctica

Contact:

Responsible Party:

Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199 x

Contact Address:

Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Online Resources:

Website: http://nsidc.org

Contact Role:

Value: pointOfContact
CodeList: CI_RoleCode

Date Stamp:

2014-04-16

Metadata Standard Name:

ISO 19115 Geographic Information - Metadata First Edition

Metadata Standard Version:

ISO 19115:2003

Dataset URI:

http://nsidc.org/data/nsidc-0349.html

Back to Top


Data Identification Information:

Citation:

Citation Information:

Title: Iceberg Harmonic Tremor, Seismometer Data, Antarctica
Date:
Date: 2008
Date Type:
Value: publication
CodeList: CI_DateTypeCode
Edition Date: 2008-10-01
Identifier: NSIDC-0349
Identifier: http://dx.doi.org/10.7265/N5445JD6
Cited Responsible Party:

Responsible Party:

Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199

Contact Address:

Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Online Resources:

Website: http://nsidc.org

Contact Role:

Value: custodian
CodeList: CI_RoleCode

Responsible Party:

Individual Name: AGDC User Services
Organization Name: Antarctic Glaciological Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199 x

Contact Address:

Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Online Resources:

Website: http://nsidc.org/agdc/

Contact Role:

Value: custodian
CodeList: CI_RoleCode

Abstract:

Seismometers were placed on a 25 km by 50 km iceberg called C16 in the Ross Sea, Antarctica, to identify the Iceberg harmonic Tremor (IHT) source mechanism and to understand the relevance of IHT to iceberg calving, drift and break-up. The seismic observations reveal that the IHT signal consists of extended episodes of stick-slip icequakes (typically thousands per hour) generated when the ice-cliff edges of two tabular icebergs rub together during glancing, strike/slip type iceberg collisions (e.g., between C16 and B15A). With the source mechanism revealed, IHT may provide a promising signal useful for the study of iceberg behavior and iceberg-related processes such as climate-induced ice-shelf disintegration. Here, a single day of seismometer data for a single station on iceberg C16 is provided as an example of "a day in the life of an iceberg" for use by scientists and students wishing to know more about IHT. The station data is from C16 "B" site on C16's northeast corner, and the day is 27 December, 2003, a day when B15A struck C16 and caused an episode of tremor that was particularly easy to identify and understand. This represents only a small fraction of the total data that exist for the seismic program on iceberg C16. The full data are archived at the IRIS data center (where seismic data is commonly archived). This one-day data set is to provide glaciologists with ready access to a good example of IHT that they can use for teaching and for demonstration purposes. Data are available in comma-delimited ASCII format and Matlab native mat files. Data are available via FTP.

Purpose:

Scientific Research

Credit:

The following example shows how to cite the use of this data set in a publication. For more information, see our Use and Copyright Web page.

Douglas MacAyeal. 2008. Iceberg Harmonic Tremor, Seismometer Data, Antarctica. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center. http://dx.doi.org/10.7265/N5445JD6.

Status:

Value: complete
CodeList: MD_ProgressCode

Point of Contact:

Responsible Party:

Individual Name: Douglas Macayeal
Contact:

Contact Phone:

Contact Voice Telephone: 1 773 702-8027

Contact Address:

Delivery Point: Department of Geophysical Sciences
City: Chicago
Administrative Area: IL
Postal Code: 60637
Country: USA
Email: drm7@midway.uchicago.edu

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Responsible Party:

Individual Name: Emile Okal
Organization Name: Northwestern University
Contact:

Contact Address:

City: Evanston
Administrative Area: Illinois
Postal Code: 60208-2150
Country: USA

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Responsible Party:

Individual Name: Richard Aster
Organization Name: New Mexico Tech
Contact:

Contact Address:

City: Socorro
Administrative Area: New Mexico
Postal Code: 87801
Country: USA

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Responsible Party:

Individual Name: Jeremy Bassis
Organization Name: University of California, San Diego
Contact:

Contact Address:

City: La Jolla,
Administrative Area: California
Postal Code: 92093-0225
Country: USA

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Responsible Party:

Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199 x

Contact Address:

Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Role:

Value: pointOfContact
CodeList: CI_RoleCode

Maintenance Information:

Maintenance and Update Frequency:

Value: asNeeded
CodeList: MD_MaintenanceFrequencyCode

Update Scope:

Value: dataset
CodeList: MD_ScopeCode

Value: series
CodeList: MD_ScopeCode

Value: attribute
CodeList: MD_ScopeCode

Contact:

Responsible Party:

Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199 x

Contact Address:

Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Online Resources:

Website: http://nsidc.org

Contact Role:

Value: pointOfContact
CodeList: CI_RoleCode

Descriptive Keywords:

Keywords

Keyword: Continent > Antarctica
Keyword Type:
Value: place
CodeList: MD_KeywordTypeCode
Keyword Thesaurus:

Citation Information:

Title: NASA / GCMD Location Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode

Keywords

Keyword: EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets
Keyword: EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Icebergs
Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Icebergs
Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Motion
Keyword: EARTH SCIENCE > Cryosphere > Snow/Ice > Ice Motion
Keyword: EARTH SCIENCE > Oceans > Sea Ice > Icebergs
Keyword: EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Motion
Keyword: EARTH SCIENCE > Terrestrial Hydrosphere > Snow/Ice > Ice Motion
Keyword Type:
Value: discipline
CodeList: MD_KeywordTypeCode
Keyword Thesaurus:

Citation Information:

Title: NASA / GCMD Science Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode

Keywords

Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Keyword Thesaurus:

Citation Information:

Title: None
Date:
Date: 2008-01-24
Date Type:
Value: revision
CodeList: CI_DateTypeCode

Keywords

Keyword: Antarctica
Keyword: Iceberg
Keyword: Ross Ice Shelf
Keyword: seismology
Keyword: seismometer
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode

Dataset Constraints:

Legal Constraints:

Access Constraints:

Value: otherRestrictions
CodeList: MD_RestrictionCode

Use Constraints:

Value: otherRestrictions
CodeList: MD_RestrictionCode

Other Constraints:

Access Constraints : none

Use Constraints : none

Language:

eng; usa

Character Set:

Value: UTF8
CodeList: MD_CharacterSetCode

Topic Category:

Value: climatologyMeteorologyAtmosphere
CodeList: MD_topicCategoryCode

Extent Information:

Spatial Temporal Extent:

Geographic Element:

Bounding Coordinates:

 

Westbound Longitude: 168
Eastbound Longitude: 168
Southbound Latitude: -77
Northbound Latitude: -77

Temporal Element:

Time Period:

Begin Position: 20031227
End Position: 20031228

Back to Top


Distribution Information:

Distributor Information:

Distributor Contact:

Responsible Party:

Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199

Contact Address:

Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Online Resources:

Website: http://nsidc.org

Contact Role:

Value: custodian
CodeList: CI_RoleCode

Responsible Party:

Individual Name: AGDC User Services
Organization Name: Antarctic Glaciological Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199 x

Contact Address:

Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Online Resources:

Website: http://nsidc.org/agdc/

Contact Role:

Value: custodian
CodeList: CI_RoleCode

Distribution Format(s):

Data File Format:

Name: ASCII Text (.txt)
Specification: FTP 150 MB

Digital Transfer Options:

Online Transfer Options:

Online Resources:

Linkage: ftp://sidads.colorado.edu/pub/DATASETS/AGDC/macayeal_nsidc_0349/
Description: Data Access URL
Function:

Value: download
CodeList: CI_OnLineFunctionCode

Linkage: http://nsidc.org/data/docs/agdc/nsidc0349_macayeal/index.html
Description: Documentation URL
Function:

Value: information
CodeList: CI_OnLineFunctionCode

Offline Transfer Options:

Offline Resources:

Name:

Value: onLine
CodeList: MD_MediumNameCode
Density: 150
Density Units: B
Medium Name: FTP

Back to Top


Data Acquisition Information:

Instrument Information:

Platform Information:

Platform:

Name: FIELD INVESTIGATION
Description: satellite
Instrument:

Platform:

Name: FIELD SURVEYS
Description: satellite
Instrument:

Back to Top

Metadata Views

ISO Text-Only

International Organization for Standardization (ISO) in plain text

ISO XML

International Organization for Standardization (ISO) in Extensible Markup Language (XML)

DIF HTML

NASA Global Change Master Directory (GCMD) Directory Interchange Format (DIF)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)