World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

Snow Melting Bias in Microwave Mapping of Antarctic Snow Accumulation : Volume 2, Issue 2 (24/04/2008)

By Magand, O.

Click here to view

Book Id: WPLBN0003979026
Format Type: PDF Article :
File Size: Pages 19
Reproduction Date: 2015

Title: Snow Melting Bias in Microwave Mapping of Antarctic Snow Accumulation : Volume 2, Issue 2 (24/04/2008)  
Author: Magand, O.
Volume: Vol. 2, Issue 2
Language: English
Subject: Science, Cryosphere, Discussions
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


APA MLA Chicago

Picard, G., Brucker, L., Fily, M., Genthon, C., & Magand, O. (2008). Snow Melting Bias in Microwave Mapping of Antarctic Snow Accumulation : Volume 2, Issue 2 (24/04/2008). Retrieved from

Description: Laboratoire de Glaciologie et Géophysique de l'Environnement, CNRS, Université Joseph Fourier-Grenoble, 54 Rue Molière, BP 96, 38402 St Martin d'Hères Cedex, France. Satellite records of microwave surface emission have been used to interpolate in-situ observations of Antarctic surface mass balance (SMB) and build continental-scale maps of accumulation. Using a carefully screened subset of accumulation measurements in the 90°–180° E sector, we show a reasonable agreement with microwave-based accumulation map in the dry-snow regions, but large discrepancies in the coastal regions where melt occurs during summer. Using an emission microwave model, we explain the failure of microwave sensors to retrieve accumulation by the presence of layers created by melt/re-freeze cycles. We conclude that regions potentially affected by melting should be masked-out in microwave-based interpolation schemes.

Snow melting bias in microwave mapping of Antarctic snow accumulation

Arthern, R. J., Winebrenner, D. P., and Vaughan, D. G.: Antarctic snow accumulation mapped using polarisation of 4.3cm wavelength microwave emission, J. Geophys. Res., 111, D06107, doi:10.1029/2004JD005667, 2006.; Bingham, A. W. and Drinkwater, M.: Recent changes in the microwave scattering properties of the Antarctic ice sheet, IEEE T. Geosci. Rem. Sens., 38, 1810–1820, 2000.; Cavalieri, D. and Comiso, J.: AMSR-E/Aqua daily L3 25 km Tb, sea ice temperature and sea ice conc, polar grids V001, January to December 2003., Natl. Snow and Ice Data Cent., Boulder, Colorado, 2004.; Genthon, C. and Krinner, G.: Antarctic surface mass balance and systematic biases in general circulation models, J. Geophys. Res., 106, 20 653–20 664, 2001.; Drinkwater, M. R., Long, D. G., and Bingham, A. W.: Greenland snow accumulation estimates from satellite radar scatterometer data, J. Geophys. Res., 106(D24), 33 935–33 950, 2001.; Forster, R., Jezek, K. C., Bolzan, J., Baumgartner, F., and Gogineni, P.: Relationships between radar backscatter and accumulation rates on the Greenland ice sheet, Int. J. Remote Sens., 20, 3131–3147, 1999.; Goodwin, I. D.: Ice sheet topography and surface characteristics in Eastern Wilkes Land, East Antarctica, ANARE Research Notes, 64, 100 pp., 1988.; Goodwin, I. D.: Snow accumulation variability from seasonal surface observations and firn-core stratigraphy, Eastern Wilkes Land, Antarctica, J. Glaciol., 37, 383–387, 1991.; Goodwin, I. D., De Angelis, M., Pook, M., and Young, N. W.: Snow accumulation variability in Wilkes Land, East Antarctica, and the relationship to atmospheric ridging in the 130°–170° E region since 1930, J. Geophys. Res., 108, 4673–4689, 2003.; Magand, O., Genthon, C., Fily, M., Krinner, G., Picard, G., Frezzotti, M., and Ekaykin, A.: An up-to-date quality-controlled Surface Mass Balance data set for the 90–180° East Antarctica sector and 1950–2005 period, J. Geophys. Res., 112, D12106, doi:10.1029/2006JD007691, 2007.; Munk, J., Jezek, K. C., Forster, R., and Gogineni, P.: An accumulation map for the Greenland dry-snow facies derived from spaceborne radar, J. Geophys. Res., 108(D09), ACL 8, 1–12, 2003.; Partington, K. C.: Discrimination of glacier facies using multi-temporal SAR data, J. Glaciol., 44, 42–53, 1998.; Picard, G. and Fily, M.: Surface melting observations in Antarctica by microwave radiometers: Correcting 26-year time series from changes in acquisition hours, Rem. Sens. Environ., 104, 325–336, doi:10.1016/j.rse.2006.05.010, 2006.; Rott, H. and Sturm, K.: Microwave signature measurements of Antarctic and Alpine snow, In 11th EARSeL symposium, Graz, Austria, 140–151, 1991.; Surdyk, S.: Using microwave brightness temperature to detect short-term surface air temperature changes in Antarctica: An analytical approach, Rem. Sens. Environ., 80, 256–271, 2002.; Surdyk, S. and Fily, M.: Results of a stratified snow emissivity model based on the wave approach: Application to the Antarctic ice sheet, J. Geophys. Res., 100, 8837–8848, 1995.; Torinesi, O., Fily, M., and Genthon, C.: Variability and trends of summer melt period of Antarctic ice margins since 1980 from microwave sensors., J. Climate, 16, 1047–1060, 2003.; Van den Broeke, M., Jan Van de Berg, W., Van Meijgaard, E., and Reijmer, C.: Identification of Antarctic ablation areas using a regional atmospheric climate model, J. Geophys. Res., 111, D18110, doi:10.1029/2006JD007127, 2006.; Vaughan, D. V., Bamber, J. L., Giovinetto, M., Russell, J., and Cooper, A. P. R.: Reassessment of Net Surface Mass Balance in Antarctica, J. Climate, 12, 933–946, 1999.; West, R. D., Winebrenner, D. P., Tsang, L., and Rott, H.: Microwave emission from density-stratified Antarctic firn at 6cm wavelength, J. Glaciol., 42, 63–76, 1996.; Wiesmann, A. and Mätzler, C.


Click To View

Additional Books

  • Response of the Ice Cap Hardangerjøkulen... (by )
  • How Old is the Ice Beneath Dome A, Antar... (by )
  • The Benefit of Using Sea Ice Concentrati... (by )
  • Spatial and Temporal Variability of Snow... (by )
  • Glaciochemical Investigations on the Sub... (by )
  • Vertical Profiles of the Specific Surfac... (by )
  • Future Projections of the Climate and Su... (by )
  • A Spurious Jump in the Satellite Record:... (by )
  • Century-scale Simulations of the Respons... (by )
  • Healing of Snow Surface-to-surface Conta... (by )
  • Fabric Measurement Along the Neem Ice Co... (by )
  • Manufactured Analytical Solutions for Is... (by )
Scroll Left
Scroll Right


Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.