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River Systems. I. Water Distribution. 1.36 billion cubic km of water 97.2% oceans 2.15% glacial ice 0.65% lakes, streams, ground water. II. The Hydrologic Cycle. III. Stream Flow. A. Terms. III. Stream Flow. Terms 1. Laminar vs. Turbulent. III. Stream Flow. Terms
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I. Water Distribution 1.36 billion cubic km of water 97.2% oceans 2.15% glacial ice 0.65% lakes, streams, ground water
III. Stream Flow A. Terms
III. Stream Flow • Terms 1. Laminar vs. Turbulent
III. Stream Flow • Terms 1. Laminar vs. Turbulent
III. Stream Flow • Terms 2. Velocity, Area, Discharge
III. Stream Flow Discharge = Velocity x Area Q = V x A
III. Stream Flow • Terms 3. Gradient
III. Stream Flow • Terms 3. Gradient Rise = Vertical drop of the stream Run Horizontal Distance
Rise = Vertical drop of the stream Run Horizontal Distance
III. Stream Flow B. Downstream Trends 1. gradient 2. width and depth 3. discharge 4. velocity
III. Stream Flow B. Downstream Trends a. gradient b. width and depth c. discharge d. velocity
III. Stream Flow B. Downstream Trends a. gradient b. width and depth c. discharge d. velocity
III. Stream Flow B. Downstream Trends a. gradient b. width and depth c. discharge d. velocity
III. Stream Flow B. Downstream Trends a. gradient b. width and depth c. discharge d. velocity
III. Work of Running Water A. Erosion
III. Work of Running Water 1) Sheet flow A. Erosion
III. Work of Running Water 1) Sheet flow 2) Rill flow A. Erosion
III. Work of Running Water B. Transportation 1) dissolved load
B. Transportation 1) dissolved load 2) solid load suspended load
B. Transportation 1) dissolved load 2) solid load suspended load bed load
Bed load – • Rolling • Sliding • Saltation
IV. Features of Streams A) Waterfalls and Rapids
IV. Features of Streams B) Meanders
Cutbanks Pointbars
IV. Features of Streams C) Pointbars
IV. Features of Streams D) Cutbanks
IV. Features of Streams E. Oxbow lakes
IV. Features of Streams E) Oxbow lakes
IV. Features of Streams F) Braided Streams
IV. Features of Streams H) Deltas
IV. Features of Streams I) Floodplains and Terraces