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

Entry ID: NSIDC-0283

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Summary

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 ...

Related URL

Link: VIEW PROJECT HOME PAGE

Description: Antarctic Megadunes: Research at the Edge of the Earth

Link: VIEW RELATED INFORMATION

Description: GPS and GPR Data: Characteristics of Snow Megadunes and Their Potential Effect on Ice Core Interpretation

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

	N: -80.78	S: -80.79	E: 124.53	W: 124.43
Max Altitude: 2884 M

Data Set Citation

Dataset Originator/Creator: Mark Fahnestock

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

Dataset Release Date: 2006-10-05

Dataset Release Place: Boulder, Colorado USA

Dataset Publisher: National Snow and Ice Data Center (NSIDC)

Data Presentation Form: Digital media

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

Temporal Coverage

Start Date: 2004-01-16

Stop Date: 2004-11-17

Location Keywords

CONTINENT > ANTARCTICA

GEOGRAPHIC REGION > POLAR

Data Resolution

Temporal Resolution: 10 minutes

Science Keywords

ATMOSPHERE > ATMOSPHERIC PRESSURE > ATMOSPHERIC PRESSURE MEASUREMENTS > BAROMETRIC PRESSURE

ATMOSPHERE > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

WEATHER STATIONS

Instrument

ANEMOMETERS

PRESSURE SENSORS

Quality 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 ...

Ancillary Keywords

AGDC

Air Temperatures

Data Set Progress

COMPLETE

Originating Center

NSIDC_AGDC

Data Center

National Snow and Ice Data Center

Data Center URL: http://nsidc.org

Data Center Personnel
Name: NSIDC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

NSIDC Antarctic Glaciological Data Center

Data Center URL: http://nsidc.org/agdc/
Dataset ID: NSIDC-0283

Data Center Personnel
Name: NSIDC AGDC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

NSIDC U.S. Antarctic Data Coordination Center

Data Center URL: http://nsidc.org/usadcc/
Dataset ID: NSIDC-0283

Data Center Personnel
Name: NSIDC USADCC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

Distribution

Distribution Media: FTP

Distribution Size: 1.48 MB

Distribution Format: ASCII text

Fees: none

Personnel

MARK FAHNESTOCK

Role: INVESTIGATOR

Phone: 603-862-0322

Email: mark.fahnestock at unh.edu

Contact Address:

University of New Hampshire

39 College Road

City: Durham

Province or State: NH

Postal Code: 03824-3525

Country: USA

Publications/References

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.

Creation and Review Dates

DIF Creation Date: 2006-10-05

Last DIF Revision Date: 2012-05-15

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