Search Help
Did you find what you were looking for? Yes No

AWS Data: Characteristics of Snow Megadunes and Their Potential Effect on Ice Core Interpretation

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Fahnestock, M., T. Scambos, T. Haran, and R. Bauer.
Publication_Date: 20061005
Title: AWS Data: Characteristics of Snow Megadunes and Their Potential Effect on Ice Core Interpretation
Edition: 1
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name: NSIDC-0283
Issue_Identification:
Publication_Information:
Publication_Place: Boulder, Colorado USA
Publisher: NSIDC: National Snow and Ice Data Center
Other_Citation_Details:
Online_Linkage: http://nsidc.org/data/NSIDC-0283
Description:
Abstract:
This data set contains Automated Weather Station (AWS) data from two sites. The Mac site was oriented on the rough sastrugi-covered windward face and the Zoe site was on the glazed leeward face. The AWSs collected data throughout the year from 16 January 2004 to 17 November 2004. Investigators received data from the two field sites via the ARGOS Satellite System (http://www.argosinc.com/).
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Albert, M. R., C. A. Shuman, Z. R. Courville, R. Bauer, M. A. Fahnestock, and T. A. Scambos. 2004. Extreme firn metamorphism: impact of decades of vapor transport on near-surface firn at a low-accumulation glazed site on the East Antarctic Plateau. Annals of Glaciology 39: 73-78. Campbell Scientific, Inc. 2002. CR10X Measurement and Control Module Operator's Manual. Courville, Z. R., M. R. Albert, and J. Severinghaus. 2002. Firn physical characteristics and impact on interstitial convection and diffusion in the megadunes of East Antarctica. Eos. Trans. AGU 85(47). Fall Meeting Suppl., Abstract C31C-06. Courville, Z. R., M. R. Albert, M. A. Fahnestock, and L. Cathles. 2005. Impact of accumulation rate on firn properties. Eos. Trans. AGU 86(52). Fall Meeting Suppl., Abstract C21B-1108. Courville, Z. R., M. Albert, M. Fahnestock, L. M. Cathles. 2006. Impact of accumulation hiatus on the physical properties of firn at a low accumulation site. Journal of Geophysical Research. In review. Fahnestock, M. A., T. A. Scambos, C. A. Shuman, et. al. 2000. Snow megadune fields on the East Antarctic Plateau: extreme atmosphere-ice interaction. Geophysical Research Letters 27(22): 3719-3722. Fahnestock, M. A., C. A. Shuman, M. R. Albert, and T. A. Scambos. 2002. Satellite, observational, meteorological and thermal records from two sites in the Antarctic megadunes stability of atmospheric forcing, thermal cracking, and the seasonal evolution of the thermal profile. Eos. Trans. AGU 85(47). Fall Meeting Suppl., Abstract C31C-03. Fahnestock, M. A., C. A. Shuman, T. A. Scambos, M. R. Albert, T. Haran, Z. R. Courville, and R. Bauer. 2005. Mapping Antarctic megadunes and other accumulation-related features on the East Antarctic Plateau. Eos. Trans. AGU 86(52). Fall Meeting Suppl., Abstract C13A-06. Frezzotti, M., S. Gandolfi, F. La Marca, and S. Urbini. 2002. Snow dunes and glazed surfaces in Antarctica: new field and remote sensing data. Annals of Glaciology 34: 81-88. Frezzotti, M., S. Gandolfi, and S. Urbini. 2002. Snow megadunes in Antarctica: sedimentary structure and genesis. Journal of Geophysical Research 107(D18), 4344: doi:10.1029/2001JD000673. Kawamura, K., and J. P. Severinghaus. 2005. Krypton and Xenon as indicators of convective zone thickness in firn at Megadunes, Antarctica. Eos. Trans. AGU 86(52). Fall Meeting Suppl., Abstract PP33C-1590. Scambos, T. A., M. A. Fahnestock, C. A. Shuman, and R. Bauer. 2002. Antarctic megadunes: characteristics and formation. Eos. Trans. AGU 85(47). Fall Meeting Suppl., Abstract C31C-04. Suchdeo, V. P., C. A. Shuman, T. A. Scambos, M. A. Fahnestock, M. R. Albert, and R. Bauer. 2002. Precise elevation profiles across Antarctic megadunes. Eos. Trans. AGU 85(47). Fall Meeting Suppl., Abstract C33C-0357. Suwa, M., and J. Severinghaus. 2002. Firn density profile at Megadunes, East Antarctica, calls for an improved densification model for low accumulation sites. Eos. Trans. AGU 85(47). Fall Meeting Suppl., Abstract C33C-0359.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20040116
Ending_Date: 20041117
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 124.4345
East_Bounding_Coordinate: 124.52668
North_Bounding_Coordinate: -80.77546
South_Bounding_Coordinate: -80.79008
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 > ATMOSPHERE > ATMOSPHERIC PRESSURE > ATMOSPHERIC PRESSURE MEASUREMENTS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND PROFILES
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED/WIND DIRECTION
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > FIRN
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE TEMPERATURE
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SNOW/ICE > SNOW/ICE TEMPERATURE
Theme_Keyword: WEATHER STATIONS
Theme_Keyword: ANEMOMETERS
Theme_Keyword: ARGOS > ARGOS DATA COLLECTION AND POSITION LOCATION SYSTEM
Theme_Keyword: PRESSURE SENSORS
Theme_Keyword: THERMOMETERS
Theme_Keyword: WIND PROFILERS
Theme_Keyword: Agdc
Theme_Keyword: Agdc-project
Theme_Keyword: Air Temperatures
Theme_Keyword: Antarctic
Theme_Keyword: Antarctica
Theme_Keyword: Atmospheric Pressure
Theme_Keyword: Automated Weather Stations
Theme_Keyword: Aws
Theme_Keyword: East Antarctic Plateau
Theme_Keyword: Firn Temperature Measurements
Theme_Keyword: Megadunes
Theme_Keyword: Polar Firn Air
Theme_Keyword: Surface Temperatures
Theme_Keyword: Wind Direction
Theme_Keyword: Wind Speed
Theme_Keyword: NULL
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: 10 Minute
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: MARK A. FAHNESTOCK
Contact_Person_Primary:
Contact_Person: TED SCAMBOS
Contact_Person_Primary:
Contact_Person: TERRY HARAN
Contact_Person_Primary:
Contact_Person: ROB BAUER
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: University of New Hampshire
Address: 39 College Road
City: Durham
State_or_Province: NH
Postal_Code: 03824-3525
Country: USA
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_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_Address:
Address_Type: Mailing and Physical Address
Address: University of Colorado
Address: Cooperative Institute for Research in Environmental Sciences
Address: CIRES 449 UCB
City: Boulder
State_or_Province: CO
Postal_Code: 80309
Country: USA
Contact_Voice_Telephone: 1-603-862-0322
Contact_Voice_Telephone: 303 492 1113
Contact_Voice_Telephone: 303-492-1847
Contact_Voice_Telephone: 303-492-2378
Contact_Facsimile_Telephone: 303-492-2468
Contact_Electronic_Mail_Address: mark.fahnestock@unh.edu
Contact_Electronic_Mail_Address: teds@nsidc.org
Contact_Electronic_Mail_Address: tharan@nsidc.org
Contact_Electronic_Mail_Address: bauer@nsidc.org
Browse_Graphic:
Browse_Graphic_File_Name: http://nsidc.org/data/docs/agdc/nsidc0283_fahnestock/dunes_area_location.jpg
Browse_Graphic_File_Description:
Site Location
Browse_Graphic_File_Type:
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The 10 meter firn temperature reading did not work much of the time at the Zoe site (mostly not a number (NAN) values). Not all ARGOS satellite passes caught both a Block 1 and a Block 2 corresponding to the same set of measurements, so they are not coincident measurements unless their julian day values match to within about 0.007 days (about 10 minutes). There are a few spurious points because of the communication link: sometimes the data logger and satellite transmitter would get out of sync, and values ended up in the wrong columns, etc. Investigators filtered out the obvious spurious values, but a few still exist in the data. Investigators estimated the wind direction margin of error at the Mac site to be ±1 degree clockwise from true north with no measurable offset. They estimated wind direction margin of error at the Zoe site to be ± 4 degrees clockwise from true north, but believe the measurements appeared to be approximately 4 degrees too high.
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
Resource_Description: NSIDC-0283
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII Text
Transfer_Size: 1.48 MB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://nsidc.org/agdc/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://nsidc.org/data/nsidc-0283/versions/1/docum...
Access_Instructions:
Documentation
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
ftp://sidads.colorado.edu/pub/DATASETS/AGDC/fahnes...
Access_Instructions:
FTP
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://nsidc.org/cryosphere/antarctica/megadunes/
Access_Instructions:
Antarctic Megadunes: Research at the Edge of the Earth
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://nsidc.org/data/nsidc-0282.html
Access_Instructions:
GPS and GPR Data: Characteristics of Snow Megadunes and Their Potential Effect on Ice Core Interpretation
Fees: Not Available
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20061005
Metadata_Review_Date: 20161130
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


Link to Web Site