Mean and median grain area and grain perimeter from 7 depths of Siple Dome (SDMA) between 640 m and 790 m.

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Rachel Obbard
Publication_Date: September 21, 2012
Title: Mean and median grain area and grain perimeter from 7 depths of Siple Dome (SDMA) between 640 m and 790 m.
Edition: 1.0
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place: 14 Engineering Drive Hanover, NH. 03755 USA
Publisher: Thayer School, Dartmouth College
Other_Citation_Details:
Online_Linkage:
Citation:
Citation_Information:
Originator: Rachel Obbard
Publication_Date: September 21, 2012
Title: Grain size and approximate age for 14 samples from Upper Fremont Glacier, WY
Edition: 1.0
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place: 14 Engineering Drive Hanover, NH. 03755 USA
Publisher: Thayer School, Dartmouth College
Other_Citation_Details:
Online_Linkage:
Citation:
Citation_Information:
Originator: Rachel Obbard
Publication_Date: September 21, 2012
Title: Structure Log for Upper Fremont Glacier, WY
Edition: 1.0
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place: 14 Engineering Drive Hanover, NH. 03755 USA
Publisher: Thayer School, Dartmouth College
Other_Citation_Details:
Online_Linkage:
Citation:
Citation_Information:
Originator: Rachel Obbard
Publication_Date: September 21, 2012
Title: a{0001} and c{11-20} axis pole figures for 9 depths of the Upper Fremont Glacier, WY (core 98-4).
Edition: 1.0
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place: 14 Engineering Drive Hanover, NH. 03755 USA
Publisher: Thayer School, Dartmouth College
Other_Citation_Details:
Online_Linkage:
Citation:
Citation_Information:
Originator: Rachel Obbard
Publication_Date: September 21, 2012
Title: a{0001} and c{11-20} axis pole figures for 5 depths of the Siple Dome (SDMA) core between 640m and 790m and misorientation angle distribution for the same grains.
Edition: 1.0
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place: 14 Engineering Drive Hanover, NH. 03755 USA
Publisher: Thayer School, Dartmouth College
Other_Citation_Details:
Online_Linkage:
Citation:
Citation_Information:
Originator: Rachel Obbard
Publication_Date: September 21, 2012
Title: Pore size and distribution in 55 firn samples from Siple Dome (SDMA), Antarctica
Edition: 1.0
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place: 14 Engineering Drive Hanover, NH. 03755 USA
Publisher: Thayer School, Dartmouth College
Other_Citation_Details:
Online_Linkage:
Description:
Abstract:
This award supports a project to use advanced microscopic and spectroscopic techniques to explore critical questions about microstructure in ice cores, in particular the microstructural locations of impurities, complete grain orientations, and microstructures associated with specific stress regimes or imposed strain. This work complements the visual stratigraphy, electrical conductivity measurement, and precise, detailed measurements of the soluble ion and gas contents that are performed by other researchers. Visual stratigraphy, ECM, ion chromatography and stable isotope analysis of ice cores contribute immensely to our understanding of paleoclimate and, to our ability to predict future climate change. We use primarily scanning electron microscope techniques – imaging, energy dispersive spectroscopy, and electron backscatter diffraction – and micro computed X-ray tomography to provide specific information on the microstructural location of impurities, the effect of impurities on physical properties of ice, the effects of stress and strain on microstructure, c- and a-axis fabric at selected depths, and the densification of snow and firn. This information will allow paleoclimatologists to better interpret ice core data and other scientists to understand and model the physical and mechanical properties of natural ice sheets.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Li, X; Iliescu, D; Baker, I. "On the effects of temperature on the strength of H2SO4-doped ice single crystals," JOURNAL OF GLACIOLOGY, v.55, 2009, p. 481-484. View record at Web of Science Obbard, RW; Troderman, G; Baker, I. "Imaging brine and air inclusions in sea ice using micro-X-ray computed tomography," JOURNAL OF GLACIOLOGY, v.55, 2009, p. 1113-1115. View record at Web of Science R.W. Obbard, I. Baker, D. Prior. "A scanning electron microscope technique for identifying the mineralogy of dust in ice cores," Journal of Glaciology, v.57, 2011, p. 511. Rasband, W.S. 2006. ImageJ program. Bethesda, MA, National Institutes of Health. Retzlaff, R. and C.R. Bentley. R.W. Obbard, K.E. Sieg, I. Baker, D. Meese (2011a) Microstructural evolution in the fine-grained region of the Siple Dome ice core. Journal of Glaciology, 57(206):1046-1056. R.W. Obbard, T. Cassano, K. Aho, G. Troderman, I. Baker (2011b) Using borehole logging to orient an ice core from the Upper Fremont Glacier, Wyoming. Journal of Glaciology, 57(205):0840-846. Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 . Morin, R.H., G.E. Descamps and L.D. Cecil. 2000. Characterizing englacial structure from analysis of acoustic televiewer logs,Upper Fremont Glacier, Wyoming. In Proceedings of the Seventh Logging, 24–26 October 2000, Golden, Colorado. Houston, TX,International Symposium on Mineral and GeoTechnical Society of Petrophysicists & Well Log Analysts. Minerals and Geotechnical Logging Society, 235–243. Lomonaco, R.; Albert, M.; Baker, I. (2011) Microstructural evolution of fine-grained layers through the firn column at Summit, Greenland. Journal of Glaciology 57(204): 755-762
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20090901
Ending_Date: 20110301
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20090101
Ending_Date: 20090601
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20060601
Ending_Date: 20090101
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20100201
Ending_Date: 20100301
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20080101
Ending_Date: 20090601
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20090701
Ending_Date: 20111231
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: Not Available
East_Bounding_Coordinate: Not Available
North_Bounding_Coordinate: Not Available
South_Bounding_Coordinate: Not Available
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 > GLACIERS/ICE SHEETS
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SNOW/ICE
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > ICE CORE RECORDS
Theme_Keyword: LABORATORY
Theme_Keyword: SCANNING ELECTRON MICROSCOPES
Theme_Keyword: SPECTROMETERS
Theme_Keyword: MICROSCOPES
Theme_Keyword: Ice Cores
Theme_Keyword: Microstructure
Theme_Keyword: Impurities
Theme_Keyword: Grain Orientations
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: GEOGRAPHIC REGION > POLAR
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: GEOGRAPHIC REGION > ARCTIC
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: IAN BAKER
Contact_Person_Primary:
Contact_Person: RACHEL WYNDHAM OBBARD
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Thayer School of Engineering
Address: Dartmouth College
Address: 8000 Cummings Hall
City: Hanover
State_or_Province: NH
Postal_Code: 03755-8000
Country: USA
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Thayer School of Engineering
Address: Dartmouth College
Address: 8000 Cummings Hall
City: Hanover
State_or_Province: NH
Postal_Code: 03755
Country: USA
Contact_Voice_Telephone: 603-646-2184
Contact_Voice_Telephone: 603-646-9613
Contact_Facsimile_Telephone: 603-646-9024
Contact_Facsimile_Telephone: 603-646-9024
Contact_Electronic_Mail_Address: Ian.Baker@Dartmouth.edu
Contact_Electronic_Mail_Address: rachel.w.obbard@dartmouth.edu
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
Back to Top
Spatial_Reference_Information:
Back to Top
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NSIDC_AGDC > NSIDC Antarctic Glaciological Data Center
Contact_Person: NSIDC AGDC USER SERVICES
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: National Snow and Ice Data Center
Address: CIRES, 449 UCB
Address: University of Colorado
City: Boulder
State_or_Province: CO
Postal_Code: 80309-0449
Country: USA
Contact_Voice_Telephone: +1 (303) 492-6199
Contact_Facsimile_Telephone: +1 (303) 492-2468
Contact_Electronic_Mail_Address: nsidc@nsidc.org
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NSIDC > National Snow and Ice Data Center
Contact_Person: NSIDC USER SERVICES
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: National Snow and Ice Data Center
Address: CIRES, 449 UCB
Address: University of Colorado
City: Boulder
State_or_Province: CO
Postal_Code: 80309-0449
Country: USA
Contact_Voice_Telephone: +1 (303) 492-6199
Contact_Facsimile_Telephone: +1 (303) 492-2468
Contact_Electronic_Mail_Address: nsidc@nsidc.org
Resource_Description: baker_0738975
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://nsidc.org/agdc/
Access_Instructions:
DATA CENTER URL
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://nsidc.org
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://engineering.dartmouth.edu/people/faculty/ia...
Access_Instructions:
Research Interests Mechanical behavior; phase tranformations; electron microscopy; x-ray topography; x-ray diffraction; ice; magnetic materials; intermetallic compounds; high temperature materials; nanoparticles for magnetic hyperthermia
Fees: Not Available
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20120904
Metadata_Review_Date: 20120921
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Back to Top
[ Update this Record ]


Link to Web Site