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Unformatted text preview: -High precipitation and/or dam break • Flash Floods: “upstream floods”-Small, localized area-High rainfall in short time period-Confined valleys-Move rapidly-Rare in Maine, but do occur (1981 Caribou, Me) • Riverine (Downstream) Floods:-Heavy rains over large area or rain combined with rapid snowmelt.-Riverine (a.k.a. floodplain) floods: o Floodplain: Broad, flat area, adjacent to stream • Floods in Maine:-“Seasonally pulsed”-Spring; High Precipitation and large snow pack & rapid melt-Fall: High Precipitation (hurricanes) and low transpiration • Ice Jam Floods:-Rapid snow melt + high precipitation-Sudden warming-Ice + high water-Saco River, 1936 • Flood Damage:-Erosion-Inundation-Interior Damage • How to predict Flood Hazards:-Monitoring of weather conditions-Precipitation- NWS-Snow Pack- MGS/USGS (Maine Geologic Survey/United States Geologic Survey)...
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- Spring '08
- Hydrology, Maine, High precipitation, Floodplain- Flat, Unconsolidated Drainage Basin