An application of an explicit microphysics mesoscale model to a regional icing event

G. D. Modica; S. T. Heckman; R. M. Rasmussen

doi:10.1175/1520-0450(1994)033<0053:AAOAEM>2.0.CO;2

An application of an explicit microphysics mesoscale model to a regional icing event

G. D. Modica, S. T. Heckman, R. M. Rasmussen

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Abstract

A hydrostatic regional prediction model is modified to permit the existence of both liquid and ice hydrometeors within the same grid volume. The model was used to simulate an orographically forced icing event (the Valentine's Day storm of 12-14 February 1990) that occurred during the 1990. Output from a 24-h nested-grid integration of the model was compared to observations taken during WISP-90. The model produced a thin (~1-2 km deep) supercooled liquid water (SLW) cloud that was in good agreement with observations in terms of initiation, duration, liquid water content, and location. Results of the simulation also suggest that slantwise ascent can be an important component in the production of SLW. -from Authors

Original language	English
Pages (from-to)	53-64
Number of pages	12
Journal	Journal of Applied Meteorology
Volume	33
Issue number	1
DOIs	https://doi.org/10.1175/1520-0450(1994)033<0053:AAOAEM>2.0.CO;2
State	Published - 1994

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10.1175/1520-0450(1994)033<0053:AAOAEM>2.0.CO;2

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title = "An application of an explicit microphysics mesoscale model to a regional icing event",

abstract = "A hydrostatic regional prediction model is modified to permit the existence of both liquid and ice hydrometeors within the same grid volume. The model was used to simulate an orographically forced icing event (the Valentine's Day storm of 12-14 February 1990) that occurred during the 1990. Output from a 24-h nested-grid integration of the model was compared to observations taken during WISP-90. The model produced a thin (\textasciitilde{}1-2 km deep) supercooled liquid water (SLW) cloud that was in good agreement with observations in terms of initiation, duration, liquid water content, and location. Results of the simulation also suggest that slantwise ascent can be an important component in the production of SLW. -from Authors",

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AU - Modica, G. D.

AU - Heckman, S. T.

AU - Rasmussen, R. M.

PY - 1994

Y1 - 1994

N2 - A hydrostatic regional prediction model is modified to permit the existence of both liquid and ice hydrometeors within the same grid volume. The model was used to simulate an orographically forced icing event (the Valentine's Day storm of 12-14 February 1990) that occurred during the 1990. Output from a 24-h nested-grid integration of the model was compared to observations taken during WISP-90. The model produced a thin (~1-2 km deep) supercooled liquid water (SLW) cloud that was in good agreement with observations in terms of initiation, duration, liquid water content, and location. Results of the simulation also suggest that slantwise ascent can be an important component in the production of SLW. -from Authors

AB - A hydrostatic regional prediction model is modified to permit the existence of both liquid and ice hydrometeors within the same grid volume. The model was used to simulate an orographically forced icing event (the Valentine's Day storm of 12-14 February 1990) that occurred during the 1990. Output from a 24-h nested-grid integration of the model was compared to observations taken during WISP-90. The model produced a thin (~1-2 km deep) supercooled liquid water (SLW) cloud that was in good agreement with observations in terms of initiation, duration, liquid water content, and location. Results of the simulation also suggest that slantwise ascent can be an important component in the production of SLW. -from Authors

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SP - 53

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JO - Journal of Applied Meteorology

JF - Journal of Applied Meteorology

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ER -

An application of an explicit microphysics mesoscale model to a regional icing event

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