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

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Metadata Entity Set Information:

Language:

eng; usa

Character Set:

Value: UTF8
CodeList: MD_CharacterSetCode

Hierarchy Level:

Value: dataset
CodeList: MD_ScopeCode

Hierarchy Level Name:

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

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:

2014-08-20

Metadata Standard Name:

ISO 19115 Geographic Information - Metadata First Edition

Metadata Standard Version:

ISO 19115:2003

Dataset URI:

http://nsidc.org/data/nsidc-0283.html

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Data Identification Information:

Citation:

Citation Information:

Title: AWS Data: Characteristics of Snow Megadunes and Their Potential Effect on Ice Core Interpretation
Date:
Date: 2006
Date Type:
Value: publication
CodeList: CI_DateTypeCode
Edition Date: 2006-10-05
Identifier: NSIDC-0283
Identifier: http://dx.doi.org/10.7265/N5K935F3
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:

The Antarctic megadune research was conducted during two field seasons, one in November 2002 and the other during the period of December 2003 through January 2004. The megadune field site is located on the East Antarctic Plateau, southeast of Vostok station. The objectives of this multi-facetted research are 1) to determine the physical characteristics of the firn across the dunes including typical climate indicators such as stable isotopes and major chemical species and 2) to install instruments to measure the time variation of near-surface wind and temperature with depth, to test and refine hypotheses for megadune formation. It is important to improve our current understanding of the megadunes because of their extreme nature, their broad extent, and their potential impact on the climate record. Megadunes are a manifestation of an extreme terrestrial climate and may provide insight on the past terrestrial climate or on processes active on other planets. Snow megadunes are undulating variations in accumulation and surface texture with wavelengths of 2 to 5 km and amplitudes up to 5 meters. The features cover 500,000 km<sup>2</sup> of the East Antarctic plateau, occurring in areas of moderate regional slope and low accumulation on the flanks of the ice sheet between 2500 and 3800 meters elevation. Landsat images and aerial photography indicate the dunes consist of alternating surfaces of glaze and rough sastrugi, with gradational boundaries. This pattern is oriented perpendicular to the mean wind direction, as modeled in katabatic wind studies. Glazed surfaces cover the leeward faces and troughs; rough sastrugi cover the windward faces and crests. The megadune pattern is crossed by smooth to eroded wind-parallel longitudinal dunes. Wind-eroded longitudinal dunes form spectacular 1-meter-high sastrugi in nearby areas. 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/). Data are provided in space-delimited ASCII text format and 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.

Mark Fahnestock. 2006. AWS Data: Characteristics of Snow Megadunes and Their Potential Effect on Ice Core Interpretation. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center. http://dx.doi.org/10.7265/N5K935F3.

Status:

Value: complete
CodeList: MD_ProgressCode

Point of Contact:

Responsible Party:

Individual Name: Mark Fahnestock
Organization Name: University of New Hampshire
Contact:

Contact Phone:

Contact Voice Telephone: 1 603 862-0322

Contact Address:

Delivery Point: University of New Hampshire
City: Durham
Administrative Area: NH
Postal Code: 03824-3525
Country: USA
Email: mark.fahnestock@unh.edu

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Responsible Party:

Individual Name: Ted Scambos
Organization Name: University of Colorado
Contact:

Contact Address:

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

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Responsible Party:

Individual Name: Terry Haran
Organization Name: National Snow and Ice Data Center
Contact:

Contact Address:

Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Responsible Party:

Individual Name: Rob Bauer
Organization Name: University of Colorado
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492 2378

Contact Address:

Delivery Point: University of Colorado
City: Boulder
Administrative Area: CO
Postal Code: 80309
Country: USA
Email: bauerr@kryos.colorado.edu

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

Browse Graphic:

Image File: http://nsidc.org/data/docs/agdc/nsidc0283_fahnestock/dunes_area_location.jpg
File Description: Site Location

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 > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements > Barometric Pressure
Keyword: EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Air Temperature
Keyword: EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Surface Air Temperature
Keyword: EARTH SCIENCE > Atmosphere > Atmospheric Winds > Surface Winds
Keyword: EARTH SCIENCE > Atmosphere > Atmospheric Winds > Wind Profiles > Wind Direction
Keyword: EARTH SCIENCE > Atmosphere > Atmospheric Winds > Wind Profiles > Wind Speed
Keyword: EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Firn > Temperature
Keyword: EARTH SCIENCE > Cryosphere > Snow/Ice > Snow/Ice Temperature
Keyword: EARTH SCIENCE > Terrestrial Hydrosphere > Snow/Ice > Snow/Ice Temperature
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: AGDC
Keyword: Air Temperatures
Keyword: Antarctic
Keyword: Antarctica
Keyword: Atmospheric Pressure
Keyword: Automated Weather Stations
Keyword: AWS
Keyword: East Antarctic Plateau
Keyword: Firn Temperature Measurements
Keyword: Megadunes
Keyword: Polar Firn Air
Keyword: Surface Temperatures
Keyword: Wind Direction
Keyword: Wind Speed
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: 124.4345
Eastbound Longitude: 124.52668
Southbound Latitude: -80.79008
Northbound Latitude: -80.77546

Temporal Element:

Time Period:

Begin Position: 20040116
End Position: 20041117

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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 1.48 MB

Digital Transfer Options:

Online Transfer Options:

Online Resources:

Linkage: ftp://sidads.colorado.edu/pub/DATASETS/AGDC/fahnestock_nsidc_0283/
Description: Data Access URL
Function:

Value: download
CodeList: CI_OnLineFunctionCode

Linkage: http://nsidc.org/data/docs/agdc/nsidc0283_fahnestock/index.html
Description: Documentation URL
Function:

Value: information
CodeList: CI_OnLineFunctionCode

Offline Transfer Options:

Offline Resources:

Name:

Value: onLine
CodeList: MD_MediumNameCode
Density: 1.48
Density Units: B
Medium Name: FTP

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Data Acquisition Information:

Instrument Information:

Instrument:

Name: ANEMOMETERS
Type: sensor

Instrument:

Name: ARGOS > ARGOS Data Collection and Position Location System
Type: sensor

Instrument:

Name: PRESSURE SENSORS
Type: sensor

Instrument:

Name: THERMOMETERS
Type: sensor

Instrument:

Name: WIND PROFILERS
Type: sensor

Platform Information:

Platform:

Name: WEATHER STATIONS
Description: satellite
Instrument: N/A

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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)