2012/07/18 by Peter Mills, Mills, Peter
Earth and Planetary Sciences · Physics and Astronomy · #Arctic and Antarctic ice dynamics #Atmospheric and Oceanic Physics (physics.ao-ph) #Climate change and permafrost #Cryospheric studies and observations #FOS: Physical sciences #physics.ao-ph
paper · pdf · doi:10.48550/arxiv.1207.4488
Corrected minor errors (e.g. sentence fragment)
openalex publication_date 2012/07/18 · arxiv created 2012/08/09 · arxiv updated 2012/08/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Lake ice within three Advanced Microwave Scanning Radiometer on EOS (AMSR-E) pixels over the Great Bear and Great Slave Lakes have been simulated with the Canadian Lake Ice Model (CLIMo). The resulting thicknesses and temperatures were fed to a radiative transfer-based ice emissivity model and compared to the satellite measurements at three frequencies---6.925 GHz, 10.65 GHz and 18.7 GHz. Excluding the melt season, the model was found to have strong predictive power, returning a correlation of 0.926 and a residual of 0.78 Kelvin at 18 GHz, vertical polarization. Discrepencies at melt season are thought to be caused by the presence of dirt in the snow cover which makes the microwave signature more like soil rather than ice. Except at 18 GHz, all results showed significant bias compared to measured values. Further work needs to be done to determine the source of this bias.