GPH 111 Lab

GPH 111 Lab - LabQuiz3StudyGuide Lab 9 Re-Photography and...

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Lab Quiz 3 Study Guide Lab 9 – Re-Photography and the Urban Heat Island Urban Heat Island (UHI) a phenomenon that makes urban Phoenix nighttime low temperatures 10-15ºF warmer than temperatures in rural areas o The heat from the sun is trapped in buildings, pavement, etc and stored longer making it warmer at night in the city than in rural areas Heat dome changes in thermal properties, moisture, and aerodynamic character in the environment that creates an urban boundary layer Xeriscaping landscaping with the use of low water consuming vegetation Evapotranspiration the emission of water vapor from plant leaves Re-Photography the repetitive photographing of a place to analyze change Albedo reflection of sun light from the earth out into the atmosphere Lab 11 – Mass Wasting Mass Wasting the downslope movement of angular slope material o Gravity! Earth Flows water-filled soil moving downslope creating a “slump” formation Mudflows fine-textured soils and sediments mixed with large amounts of water creating a liquid flow Flash Flood when excessive amounts of water become deposited into a valley (can become a powerful current if given enough speed and volume) Landslides the downslope movement of rock, soil, or artificial fill under the influence of gravity o More common among coastal and mountainous regions of CA, OR, WA, AK, and HI
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Weathering mechanical or chemical altering of a material (mineral/rock) o Mechanical Weathering when rocks are broken into smaller pieces through the physical forces of freezing-thawing, wetting-drying, or thermal expansion The hotter the area, the more likely the rocks will weather mechanically o Chemical Weathering when rocks are changed into new compounds by a chemical transformation, generally from the presence of
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This note was uploaded on 04/30/2011 for the course GPH 23108 taught by Professor Brazel during the Spring '09 term at ASU.

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GPH 111 Lab - LabQuiz3StudyGuide Lab 9 Re-Photography and...

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