Lab on Hydrology_revised

Lab on Hydrology_revised - Lab on Hydrology, Running Water,...

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Lab on Hydrology, Running Water, Erosion, and Sediment Transport In this lab you are going to go through a basic outline of information about hydrology. As part of this activity is The Virtual River. I want you to gain an understanding of hydrology and how water moves through Earth’s Systems by reading the outline and checking out some of the links with info and photos. Once you have completed that I want you to try your hand at completing the Virtual River Lab and the self-quiz that takes you through the lab. Follow the directions very closely. ( Don’t panic if you cannot get through the virtual lab…some do…most don’t! But it is fun.) This is more for fun. .don’t get frustrated. Once you have completed this, go to the end of the lab report for your word key for the lab questions for this lab report and proceed to the Lab Questions. Outline Hydrologic cycle Distribution of water on the Earth Where does our water supply come from?
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Running Water, erosion and sediment transport Types of stream flow Discharge Urbanization and its effect on discharge What does runoff do? Erosion Hjulstron Diagram and settling velocity Transport of sediment by streams and rivers Stream capacity Stream competency Types of rivers or streams Parts of a stream Photos of rivers Floods Hydrologic cycle Powered by solar energy and gravity Evaporation and precipitation Continuous recycling of water Where does water go that falls on the land? o Runoff o Infiltration o Evaporation o Temporary storage as snow and ice o Temp. storage in lakes o Temp storage in plants (evapotranspiration) and animals o Chem reactions with rocks and minerals Source of additional water? volcanism (steam)
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o Volcanism also causes melting of snow caps and mudflows as meltwater mixes with ash Distribution of water on the Earth Total = 326 million cubic miles Percentages o 97.2% oceans o 2.15% ice caps and glaciers o .65% lakes, streams, groundwater, atmosphere Where does our water supply come from? Ground water (wells) large bodies water (lakes and reserivors, and Rivers Question you should ask: Where does your water come from? How is it treated before it gets to you? What chemicals are in it? Is it safe to drink or bathe in? Running Water, Erosion, and Sediment Transport Q. Why does water flow downhill?
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Ozone Falls, Tennessee A. Gravity Types of stream flow 1. Laminar (straight line paths) - low velocity 2. Turbulent (multidirectional movement) - hi velocity o Picks up sediment (erosion) and keeps it in suspension Discharge Discharge = amount of water flowing past a point in a given unit of time
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Units of measure o VOLUME/TIME o gal/min o m3/sec o ft3/sec How is discharge determined? o
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Lab on Hydrology_revised - Lab on Hydrology, Running Water,...

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