Part 6 Air Sea Interaction .

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Uneven sun based warming on Earth. Sun oriented vitality in high latitudes:Has a bigger
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Section 6 Air –Sea Interaction Essentials of Oceanography 7 th Edition

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Uneven sunlight based warming on Earth Solar vitality in high scopes: Has a bigger "impression" Is reflected to a more prominent degree Passes through more air Is not as much as that got in low scopes Figure 6-1

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Earth\'s seasons Earth\'s pivot is tilted 23½ º from vertical Northern and Southern Hemispheres are on the other hand tilted toward and far from the Sun Causes longer days and more extraordinary sun powered radiation amid summer Figure 6-2

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Oceanic warmth stream A net warmth pick up is knowledgeable about low scopes A net warmth misfortune is knowledgeable about high scopes Heat pick up and misfortune are adjusted by maritime and barometrical flow Figure 6-3

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Physical properties of the environment: Composition (dry air)

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Physical properties of the air: Temperature Troposphere is: Lowermost piece of the climate Where most climate happens Temperature of troposphere cools with expanding elevation Figure 6-4

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Physical properties of the air: Density Warm, low thickness air rises Cool, high thickness air sinks Creates roundabout moving circle of air (convection cell) Figure 6-5

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Physical properties of the air: Water vapor Cool air can\'t hold much water vapor, so is commonly dry Warm air can hold more water vapor, so is ordinarily wet Water vapor diminishes the thickness of air

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Physical properties of the air: Pressure A segment of cool, thick air causes high weight at the surface, which will prompt to sinking air A segment of warm, less thick air causes low weight at the surface, which will prompt to rising air Figure 6-6

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Physical properties of the air: Movement Air dependably moves from high-weight locales toward low-weight areas Moving air is called wind

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The Coriolis impact The Coriolis impact Is a consequence of Earth\'s turn Causes moving articles to take after bended ways: In Northern Hemisphere, ebb and flow is to appropriate In Southern Hemisphere, ebb and flow is to left Changes with scope: No Coriolis impact at Equator Maximum Coriolis impact at posts

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A carousel for instance of the Coriolis impact To an eyewitness over the carousel, objects make a trip straight To an onlooker on the carousel, objects take after bended ways Internet video of balls being moved over a moving carousel Figure 6-8

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The Coriolis impact on Earth As Earth turns, diverse scopes go at various paces The adjustment in speed with scope causes the Coriolis impact Figure 6-9a

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Missile ways show the Coriolis impact Two rockets are let go toward an objective in the Northern Hemisphere Both rockets bend to the correct Figure 6-9b

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Wind belts of the world Figure 6-10

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Characteristics of wind belts and limits

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Coriolis impact impacts air development Northern Hemisphere winds bend to the all right move from high to low weight Causes twist to course: Clockwise around high-weight districts Counterclockwise around low-weight districts Figure 6-12

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Air masses that influence U.S. climate Figure 6-14

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Origin and ways of tropical tornados Tropical violent winds are extraordinary low weight storms made by: Warm water Moist air Coriolis impact Includes: Hurricanes Cyclones Typhoons Figure 6-16

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Hurricane event Hurricanes have twist velocities of no less than 120 kilometers (74 miles) every hour Worldwide, around 100 tempests develop to sea tempest status every year In the Northern Hemisphere, h urricane season is for the most part between June 1 and November 30 Current condition of the tropical seas

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Hurricane structure Hurricanes have: Circular cloud groups that deliver exuberant rain The capacity to move into the mid-scopes A focal eye Figure 6-17 Figure 6-19a

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Hurricanes create storm surge Storm surge: Is an ascent in ocean level made by sea tempest coming shorewards Can be up to 12 meters (40 feet) high Causes most annihilation and fatalities related with sea tempests Figure 6-18

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Climate locales of the sea Figure 6-20

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How a nursery works Sunlight goes through the unmistakable covering of a nursery It proselytes to longer wavelength warm vitality Heat can\'t go through the covering and is caught inside Figure 6-21

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The warming of Earth\'s environment Figure 6-23

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Anthropogenic gasses that add to the nursery impact

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Carbon dioxide is expanding in the air therefore of human exercises, carbon dioxide in the air has expanded by 30% since 200 years back Figure 6-24

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Earth\'s normal temperature is rising Earth\'s normal surface temperature has ascended no less than 0.6°C (1.1°F) in the most recent 130 years May be identified with increment in barometrical carbon dioxide Figure 6-25

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Predicted changes with expanded nursery warming Higher than typical ocean surface temperatures that could influence world atmosphere More extreme dry seasons or expanded precipitation Water defilement and episodes of water-borne maladies Longer and more exceptional warmth waves Shifts in the dissemination of plants and creatures Potential liquefying or amplification of polar ice tops

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End of Chapter 6 Essentials of Oceanography 7 th Edition

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