Skip to main content Accessibility help
×
Home

Analysis of synthetic aperture radar Data collected over the southwestern Greenland ice sheet

  • K. C. Jezek (a1), M. R. Drinkwater (a2), J. P. Crawford (a2), R. Bindschadler (a3) and R. Kwok (a2)...

Abstract

Analyses of the first aircraft multi-frequency, Polarimetric synthetic aperture radar (SAR) data acquired over the southwestern Greenland ice sheet are presented. Data were collected on 31 August 1989 by the Jet Propulsion Laboratory SAR using the NASA DC-8 aircraft. Along with curvilinear patterns associated with large-scale morphologic features such as crevasses, lakes and streams, frequency and polarization dependencies are observed in the P-, L-and C-band image products. Model calculations that include firn grain-size and volumetric water content suggest that tonal variations in and between the images are attributable to large-scale variations in the snow-and ice-surface characteristics, especially snow wetness. In particular, systematic trends in back-scatter strength observed at C-band across regions of changing snow wetness are suggestive of a capability to delineate boundaries between snow facies. Ice lenses and ice pipes are the speculated cause for similar trends in P-band back-scatter. Finally, comparison between SEASAT SAR data collected in 1978 and these airborne data collected in 1989 indicate a remarkable stability of surface patterns associated with the locations of supraglacial lake and stream systems.

  • View HTML
    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Analysis of synthetic aperture radar Data collected over the southwestern Greenland ice sheet
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Analysis of synthetic aperture radar Data collected over the southwestern Greenland ice sheet
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Analysis of synthetic aperture radar Data collected over the southwestern Greenland ice sheet
      Available formats
      ×

Copyright

References

Hide All
Benson, C. S. 1961. Stratigraphic studies in the snow and firn of the Greenland ice sheet. Folia Geographica Danica, 9, 1337.
Bindschadler, R.A., Jezek, Κ. C. and Crawford, J. 1987. Glaciological investigations using the synthetic aper-ture radar imaging system. Ann. Glaciol., 9, 1119.
Bindschadler, R. Α., Zwally, H.J., Major, J. A. and Brenner, A.C. 1989. Surface topography of the Greenland ice sheet from satellite radar altimetry. Washington, DC, National Aeronautics and Space Administration. (NASA SP-503.)
Drinkwater, M.R. 1990. Multi-frequency imaging radar polarimetry of sea ice. In Murthy, Τ. K. S., Paren, J. G., Sackingcr, W. M. and Wadhams, P., eds. Ice technology for polar operations. Southampton, Computational Mechanics Publications, 365376.
Drinkwater, M.R. and Dowdeswell, J. A. 1987. A multi-sensor approach to the interpretation of radar altimeter wave forms from two Arctic ice caps. Ann. Glacial., 9, 6068.
Drinkwater, M. R., Kwok, R., Winebrenner, D. P. and Rignot, Ε. 1991. Multi-frequency Polarimetric synthetic aperture radar observations of sea ice. J. Geophys. Res., 96(011), 20,67920,698.
Freeman, Α., Shen, Y., Van Zyl, J. and Klein, J.D. 1991. Calibration of NASA/JPL DC-8 Polarimetric SAR data. In IGARSS ’91. Remote sensing: global monitoring for Earth management. 1991 International Geoscience and Remote Sensing Symposium. Helsinki University of Technology, Espoo, Finland, 1-6 June, 1991. Volume III, 13771379.
Hallikainen, M., Ulaby, F.T. and Abdel-Razik, M. 1982. Measurements of the dielectric properties of snow in the 4–18 GHz frequency range. In 12th European Microwave Conference Proceedings. Tunbridge Wells, Microwave Exhibitions, 151156.
Jezek, K. C., Crawford, J. P., Bindschadler, R., Drinkwater, M.R. and Kwok, R. 1990. Synthetic aperture radar observations of the Greenland ice sheet. JPL Publ. 9056, 2128.
Mätzler, C. 1987. Applications of the interaction of microwaves with the natural snow cover. Remote Sensing Rev., 2(2), 259387.
Molnia, B.F. and Jones, J. E. 1989. View through ice. EOS, 70(28), 701710.
Swift, C.T., Hayes, P.S., Herd, J. S., Jones, W.L. and Delnore, V. E. 1985. Airborne microwave measurements of the southern Greenland ice sheet. J. Geophys. Res., 90(B2), 19831994.
Ulaby, F.T. and Elachi, C. 1990. Radar polarimetry for geoscience applications. Norwood, MA, Artech House. Ulander, L. 1985. Airborne radar altimetry over the Greenland ice sheet. (M.Sc. thesis, University of London.)
Zebker, H.A., Van Zyl, J.J. and Elachi, C. 1990. Polarimetric radar system design. In Ulaby, F.T. and Elachi, C., eds. Radar polarimetry for geoscience applications. Norwood, MA, Artech House, 273314.

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed