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Scanning Electron Microscopy of Pure Ice

Scanning Electron Microscopy of Pure Ice

Micrograph of a roughened prismatic facet of pure water ice obtained by variable-pressure scanning electron microscopy. The horizontal corrugations, called "trans-prismatic strands", are characteristic of the prismatic facet, and are thought to be pyramidal microfacets. Roughened pyramidal…

Scanning Electron Microscopy of Salty Ice

Scanning Electron Microscopy of Salty Ice

Micrograph of a cluster of salted ice crystals obtained by variable-pressure scanning electron microscopy, at -33.7°C.

Molecular Dynamics of the Ice-Vapor Interface

Molecular Dynamics of the Ice-Vapor Interface

Adsorbed water molecules atop a disordered quasi-liquid layer of ice at the prismatic ice-vapor interface, at 230K. Arrows indicate alternating troughs and plateaus in the trans-prismatic direction. Self-diffusion occurs preferentially along troughs.

Steven Neshyba

Professor, Chemistry

BA, Reed College, 1981
PhD, Yale University, 1990

Physical, atmospheric

Teaching

On sabbatical leave, Spring 2015

Research

Collaborators:

Ivan Gladich, SISSA

Pavel Jungwirth, UOCHB

Penny Rowe, NWRA

Von Walden, University of Idaho

Raul Cordero, USACH

Research highlights:

A 2013 journal article “Roughness metrics of prismatic facets of ice”, coauthored by UPS students Lowen, Benning, and Lawson, was listed in the Special Research Spotlight of EoS and marked for Editor's highlight on the journal's home page.

Some cool cloud movies recorded by David Roesel

Complex refractive indices of supercooled water

Other:

Curriculum Vitae