Snow Structure Evolution Measured by Ground Based Polarimetric Phase Differences
Conference: EUSAR 2014 - 10th European Conference on Synthetic Aperture Radar
06/03/2014 - 06/05/2014 at Berlin, Germany
Proceedings: EUSAR 2014
Pages: 4Language: englishTyp: PDF
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Authors:
Leinss, Silvan (ETH Zurich, Switzerland)
Lemmetyinen, Juha (Finnish Meteorological Institute, Finland)
Wiesmann, Andreas (Gamma Remote Sensing AG, Switzerland)
Hajnsek, Irena (ETH Zurich & German Aerospace Center (DLR), Germany)
Abstract:
Co-polar Phase Differences (CPD) obtained from a fully polarimetric ground based scatterometer operating at 9 to 18 GHz were compared with meteorological data and with spaceborne SAR acquisitions from TerraSAR-X and TanDEM-X. The temporal evolution of the CPD is discussed with respect to the changing microscopic structure of snow. The temporal resolution of 4 hours allowed a precise analysis with respect to snow fall and melt events. Radar reflection measurements were analyzed to gain insight into backscattering properties of dry and wet snow.