| A comparison of two rain-on-snow events and the subsequent hydrologic responses in three small river basins in central Pennsylvania - :6656 | National Weather Service (NWS)
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A comparison of two rain-on-snow events and the subsequent hydrologic responses in three small river basins in central Pennsylvania
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    "Unusually deep snowpacks existed across portions of central Pennsylvania during both January 1978 and January 1996. Significant rain fell on top of both of these snowpacks, yet the hydrologic responses that resulted from the two rain-on-snow events were drastically different. A comparison of the two events, and the antecedent hydrometeorological conditions leading up to them, was made to gain insight into what caused the varied hydrologic responses. The scope of the comparison was three small adjoining subbasins located in the upper portions of central Pennsylvania's Juniata River basin, a significant tributary to the lower Susquehanna River. The output from the snow model portion of a hydrologic model was also compared for each of the two events. Results from the research indicate that the most critical factors in determining th e magnitude of the hydrologic responses were snowpack conditioning and subsequent melting preceding the arrival of heavy rainfall, as well as rainfall intensity and rainfall duration"--Abstract.

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