Entry_ID: NSIDC-0468
Entry_Title: Borehole Optical Stratigraphy Modeling, Antarctica
Group: Data_Set_Citation
   Dataset_Creator: Smith, B., B. Hawley, T. J. Fudge, and E. Waddington
   Dataset_Title: Borehole Optical Stratigraphy Modeling, Antarctica
   Dataset_Release_Date: 2010-06-15
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0468.html
   Dataset DOI: http://dx.doi.org/10.7265/N5H70CR5
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Ben
   Last_Name: Smith
   Group: Contact_Address
      Address: University of Washington
      Address: Polar Science Center Applied Physics Laboratory
      Address: University of Washington
      Address: Department of Earth and Space Sciences
      City: Seattle
      Province_or_State: WA
      Postal_Code: 98195
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Edwin
   Middle_Name: D.
   Last_Name: Waddington
   Group: Contact_Address
      Address: University of Washington
      Address: Department of Earth and Space Sciences
      Address: Box 351310
      Address: Seattle, Washington 98195-1310
      Address: USA
      City: Seattle
      Province_or_State: Washington
      Postal_Code: 98195-1310
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: T.
   Middle_Name: J.
   Last_Name: Fudge
   Email: tjfudge@uw.edu
   Group: Contact_Address
      Address: University of  Washington
      Address: Department of Earth and Space Sciences
      Address: Johnson Hall
      Address: 4000 15th Avenue NE
      City: Seattle
      Province_or_State: WA
      Postal_Code: 98195
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Robert
   Middle_Name: L
   Last_Name: Hawley
   Group: Contact_Address
      Address: Dartmouth College
      Address: Earth Sciences, HB 6105
      City: Hanover
      Province_or_State: NH
      Postal_Code: 13755
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: NSIDC
   Last_Name: User Services
   Email: nsidc@nsidc.org
   Phone: 1 303 492-6199 x
   Fax: 1 303  492-2468 x
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Paleoclimate
   Term: Land Records
   Variable_Level_1: Boreholes
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: Borehole
Keyword: Boreholes
Keyword: glaciers
Keyword: Snow
Keyword: Snow Stratigraphy
Sensor_Name: OPTICAL DUST LOGGERS > DOWNHOLE OPTICAL DUST AND ASH LOGGERS
Source_Name: LABORATORY
Group: Temporal_Coverage
   Start_Date: 2005-02-01
   Stop_Date: 2010-04-01
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -90
   Northernmost_Latitude: -60
   Westernmost_Longitude: -180
   Easternmost_Longitude: 180
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: ANTARCTICA
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: POLAR
End_Group
Data_Set_Language: English
Group: Data_Center
   Data_Center_Name: NSIDC > National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Data_Center
   Data_Center_Name: AGDC > Antarctic Glaciological Data Center
   Data_Center_URL: http://nsidc.org/agdc/
   Group: Personnel
      Role: Data Center Contact
      First_Name: AGDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 x
      Fax: 1 303  492-2468 x
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 4 - 164 KB
End_Group
Group: Reference

   Fudge, T. J. and B. Smith. 2010. Light Propagation in Firn: Application to 
   Borehole Video.Journal of Glaciology. Vol. 56, No. 198, pp. 614-624.

End_Group
Group: Summary

   This data set consists of scripts and code designed for modeling the 
   properties of boreholes in polar ice sheets, under a range of variations in 
   the borehole geometry, firn layering, and camera pointing and position. The 
   data set contains two folders. One includes two perl scripts and a piece of C 
   code, along with directions for setting up and running a Monte Carlo model of 
   photons traveling to and from a borehole in the firn. The second includes 
   scripts for generating ray-tracing input files to be used with the POV-Ray 
   package (a standard, free raytracing package) to generate simulated borehole 
   video frames based on the results of the Monte Carlo model. The project was 
   conducted between February 2005 and April 2010.

   The codes to run the models are available via FTP, in Perlscript (.pl) and C 
   code.

End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2010-06-15
Last_DIF_Revision_Date: 2013-03-20
DIF_Revision_History:  Added DOI