Table of Contents
ISRN Meteorology
Volume 2012 (2012), Article ID 529401, 16 pages
http://dx.doi.org/10.5402/2012/529401
Research Article

Implementation and Validation of Dynamical Downscaling in a Microscale Simulation of a Lake Michigan Land Breeze

1Cooperative Institute for Research in Environmental Sciences, The University of Colorado-Boulder, Boulder, CO 80305, USA
2Physical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO 80305, USA
3Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
4Department of Atmospheric and Oceanic Sciences, The University of Wisconsin-Madison, Madison, WI 53706, USA

Received 1 May 2012; Accepted 25 May 2012

Academic Editors: N. A. Mazzeo, U. Rizza, K. K. Szeto, and J. Xiao

Copyright © 2012 Gijs de Boer et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A nested numerical simulation of a land breeze observed over the western Lake Michigan shoreline was completed using the University of Wisconsin Nonhydrostatic Modeling System. This simulation was compared against observations obtained using a variety of instrumentation, most notably a scanning lidar system. The simulated land breeze is shown to closely represent the observations. Most notably, the influence of synoptic scale evolution on the strength and extent of the land breeze is illustrated to be a critical factor in accurately simulating the lifetime of the land breeze. Additionally, model resolution is shown to impact the ability of the simulation to accurately portray the fine scale features of the land breeze circulation, including the depth of the land breeze front and interactions between the land breeze and prevailing synoptic scale flow.