flood-plain step — An essentially flat, terrace like alluvial surface within a valley that is frequently covered by flood water from the present stream (e.g., below the 100 year flood level); any approximately horizontal surface still actively modified by… … Glossary of landform and geologic terms
valley floor — A general term for the nearly level to gently sloping, lowest surface of a valley. Landforms include axial stream channels, the flood plain, flood plain steps, and, in some areas, low terrace surfaces. Compare: flood plain landforms,… … Glossary of landform and geologic terms
Plain — s.Plains occur as lowlands and at the bottoms of valleys but also on plateaus at high elevations. They may have been formed from flowing lava, deposited by water, ice or wind, or formed by erosion by these agents from hills and mountains.Plains… … Wikipedia
valley-floor remnant — Hills that are now erosion remnants of a former valley or basin floor, composed mostly of unconsolidated valley / basin fill sediments (e.g., alluvium) and typically lie well above the modern valley floor and flood plain. Former basin floor… … Glossary of landform and geologic terms
flat-bottomed valley — užliejamasis slėnis statusas T sritis ekologija ir aplinkotyra apibrėžtis Upės slėnis, per pavasario potvynius ar liūtis apsemiamas vandens. atitikmenys: angl. flat bottomed valley; flood plain valley vok. Auental, n; Sohental, n rus. заливная… … Ekologijos terminų aiškinamasis žodynas
valley — valleylike, adj. /val ee/, n., pl. valleys. 1. an elongated depression between uplands, hills, or mountains, esp. one following the course of a stream. 2. an extensive, more or less flat, and relatively low region drained by a great river system … Universalium
Great Dayton Flood — The Great Dayton Flood of 1913 flooded Dayton, Ohio, and the surrounding area with water from the Great Miami River, causing the greatest natural disastercite web |url=http://www.miamiconservancy.org/about/1913.asp|title=The History of the MCD:… … Wikipedia
Bald Eagle Valley — The Bald Eagle Valley of central Pennsylvania, United States is the low lying area draining into the Bald Eagle Creek between the Allegheny Front and the Bald Eagle Mountain ridge, south of the West Branch Susquehanna River, in the Ridge and… … Wikipedia
Napa River Flood Project — A portion of the Napa River floodwall constructed by the Corps of Engineers. Photo taken from the 3rd Street bridge. The Napa River Napa Creek Flood Protection Project is a Civil Works project of the US Army Corps of Engineers in the city of Napa … Wikipedia
Geology of the Death Valley area — The exposed geology of the Death Valley area presents a diverse and complex story that includes at least 23 formations of sedimentary units, two major gaps in the geologic record called unconformities, and at least one distinct set of related… … Wikipedia