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The 20-22 January 2007 Snow Events over Canada: Microphysical PropertiesOne of the grand challenges of the Global Precipitation Measurement (GPM) mission is to improve precipitation measurements in mid- and high-latitudes during cold seasons through the use of high-frequency passive microwave radiometry. Toward this end, the Weather Research and Forecasting (WRF) model with the Goddard microphysics scheme is coupled with a Satellite Data Simulation Unit (WRF-SDSU) that has been developed to facilitate over-land snowfall retrieval algorithms by providing a virtual cloud library and microwave brightness temperature (Tb) measurements consistent with the GPM Microwave Imager (GMI). This study tested the Goddard cloud microphysics scheme in WRF for snowstorm events (January 20-22, 2007) that took place over the Canadian CloudSAT/CALIPSO Validation Project (C3VP) ground site (Centre for Atmospheric Research Experiments - CARE) in Ontario, Canada. In this paper, the performance of the Goddard cloud microphysics scheme both with 2ice (ice and snow) and 3ice (ice, snow and graupel) as well as other WRF microphysics schemes will be presented. The results are compared with data from the Environment Canada (EC) King Radar, an operational C-band radar located near the CARE site. In addition, the WRF model output is used to drive the Goddard SDSU to calculate radiances and backscattering signals consistent with direct satellite observations for evaluating the model results.
Document ID
20090009326
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Proceedings
Authors
Tao. W.K. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Shi, J.J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Matsui, T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hao, A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lang, S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Peters-Lidard, C. (Science Systems and Applications, Inc. Greenbelt, MD, United States)
Skofronick-Jackson, G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Petersen, W. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Cifelli, R. (Colorado State Univ. Fort Collins, CO, United States)
Rutledge, S. (Colorado State Univ. Fort Collins, CO, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2009
Subject Category
Meteorology And Climatology
Distribution Limits
Public
Copyright
Public Use Permitted.

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