1 / 15

CHAPTER 13 SURFACE WATER

CHAPTER 13 SURFACE WATER. 13.1 STREAMS AND RIVERS. WATER CYCLE. RIVER SYSTEMS. A RIVER AND ALL IT’S TRIBUTARIES TRIBUTARIES – SMALLER STREAMS THAT RUN INTO THE MAIN RIVER – AND CARRY ERODED ROCK – SEDIMENTFOR RS ACCOUNT FOR MOST EROSION ON EARTH’S SURFACE. DRAINAGE BASIN / WATERSHEDS.

emelda
Download Presentation

CHAPTER 13 SURFACE WATER

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CHAPTER 13 SURFACE WATER 13.1 STREAMS AND RIVERS

  2. WATER CYCLE

  3. RIVER SYSTEMS • A RIVER AND ALL IT’S TRIBUTARIES • TRIBUTARIES – SMALLER STREAMS THAT RUN INTO THE MAIN RIVER – AND CARRY ERODED ROCK – SEDIMENTFOR • RS ACCOUNT FOR MOST EROSION ON EARTH’S SURFACE

  4. DRAINAGE BASIN / WATERSHEDS • ALL THE LAND THAT DRAINS INTO THE RIVER • SEPERATED BY DIVIDES

  5. CONTINENTAL DIVIDE • RUNS THROUGH ROCKY MOUNTAINS • RAIN FALLING TO THE • WEST FLOWS TO PACIFIC • EAST FLOWS TO ATLANTIC

  6. MISSISSIPPI RIVER WATERSHED • LARGEST SINGLE DRAINAGE BASIN IN U.S. – 4.76 MILLION km2 • WEST DIVIDE= CONTINENTAL DIVIDE • EAST DIVIDE = APPALACHAIN MTNS

  7. MISSISSIPPI RIVER WATERSHED DUBOIS

  8. PENNSYLVANIA WATERSHEDS –WHERE DOES OUR WATER GO?

  9. PA DRAINAGE BASIN SUSQUEHANNA VALLEY WATERSHED CHESAPEAKE BAY WATERSHED

  10. CHARACTERISTICS OF STREAMS AND RIVERS • ABILITY OF STREAMS AND RIVERS TO ERODE, TRANSPORT AND DEPOSIT SEDIMENT IS AFFECTED BY MANY FACTORS • FACTORS INCLUDE: • VELOCITY OF WATER • GRADIENT OF STREAM • DISCHARGE • SHAPE OF CHANNEL

  11. STREAM VELOCITY • DISTANCE WATER TRAVELS IN GIVEN AMOUNT OF TIME • FACTORS AFFECTING SPEED: • STEEPNESS OF SLOPE • AMOUNT OF WATER • THE SHAPE OF STREAM

  12. GRADIENT – STEEPNESS OF SLOPE • VARIES • AT SOURCE – LARGE • AT SEA LEVEL - SMALL SOURCE LARGE SMALL Gentle

  13. DISCHARGE • NOT CONSTANT • GENERALLY INCREASE DOWNSTREAM • TRIBUTARIES ADD MORE WATER • DESERTS DECREASE • YEARLY VARIATION • SPRING MELTS – VELOCITY = MAYBE FLOODING = DISCHARGE

  14. CHANNEL • THE PATH THROUGH WHICH WATER FLOWS • SIZE SHAPE AFFECT VELOCITY SLOW MORESURFACE AREA FAST LESS SA

  15. HOMEWORK • READ 280 – 282 • DO 13.1 RSG • AND 1,2,4,5 PG 282

More Related