The University of Southampton
University of Southampton Institutional Repository

Statistical properties of fresh snow roughness

Manes, C., Guala, M., Löwe, H., Bartlett, S.J., Egli, L. and Lehning, M. (2008) Statistical properties of fresh snow roughness Water Resources Research, 44, p. 11407.

Record type: Article

Abstract

We present results from a series of experiments in which fresh snow roughness was measured by means of digital photography and analyzed using the random field approach. The aim of the paper is to investigate the scaling properties of fresh-snow-covered surfaces and to capture key roughness length scales which can characterize the surface geometry and the size of the snow crystals. Results from our experiments show the following: (1) fresh snow roughness exhibits two distinguished scaling regimes, one at scales comparable with the crystals size and another one at larger scales; (2) we confirm that the large scales are built up during snowfall and their scaling behavior is consistent with that of Ballistic Deposition (BD) processes; and (3) we suggest that the crossover length scale separating the two scaling regimes effectively defines a representative length scale of the aggregated snow crystals on the surface. The definition of this length scale is independent of the difficulties associated with measuring snow grain sizes by means of standard microscopic analysis of disaggregated crystals. Furthermore it can be obtained from a low-cost and quick experimental procedure. Results from this study provide a plausible justification for the wide scatter of aerodynamic roughness length values encountered in the literature for fresh snow. Moreover, they provide insight on the key roughness length scales which should be used for the modeling of this parameter.

Full text not available from this repository.

More information

Published date: November 2008
Organisations: Agents, Interactions & Complexity, Electronics & Computer Science

Identifiers

Local EPrints ID: 271556
URI: http://eprints.soton.ac.uk/id/eprint/271556
ISSN: 0043-1397
PURE UUID: 9a0eab40-994b-422a-a733-38080c084cd3

Catalogue record

Date deposited: 17 Sep 2010 20:28
Last modified: 18 Jul 2017 06:41

Export record

Contributors

Author: C. Manes
Author: M. Guala
Author: H. Löwe
Author: S.J. Bartlett
Author: L. Egli
Author: M. Lehning

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×