Impurity Concentrations In Sea Ice

Enhanced Sea Ice Concentrations from Passive Microwave Data

1. Introduction Sea ice concentration is usually defined as the fraction of ice covered area within an observational field, which in our case is the footprint of the satellite sensor. This assumes that the ocean surface is binary, i.e., either ice covered or ice free. With the binary characterization of the ice covered surface in mind, ice concentration can be quantified from satellite instrume...

Passive Microwave Methods of Determining Sea Ice Concentrations

Exploration of Sea Ice Concentrations using Graph Metrics

As an example of “big data,” we consider a repository of Arctic sea ice concentration data collected from satellites over the years 1979-2005. The data is represented by a graph, where vertices correspond to measurement points, and an edge is inserted between two vertices if the Pearson correlation coefficient between them exceeds a threshold. We investigate new questions about the structure of...

Impurity Effects in the Premelting of Ice

The effect of impurities on the surface and interfacial melting of ice is investigated in the context of the Derjaguin-Landau-Verwey-Overbeek theory by calculating van der Waals and Coulombic interactions within interfacial solution films. At high temperatures, the classical solute effect dominates the melting behavior. However, depending on the amount of impurity, as temperature decreases the ...

Waves in sea ice