GGRA02H3 Lecture Notes - Lecture 1: Cognitive Model, Mind Map, Absolute Time And Space

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13 Apr 2012

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Example- barbados- tourism is main attraction taste and local shops co-exist with global. Eg- kfc (used through advertising ) part of globalization chain. No single definition but some agreement that it involves: Global economic integration, global capitalism ) organization of elements of the global economy into a single system, joining different economic activities in different places into larger systems) Global economic and political interdependence and interconnectivity, i. e. elements of the system are dependent on each other and involve high levels of interconnection on an increasingly global scale. Global culture: idea of global community, common global values, global village. The term global village" was coined by marshall mccluhan. In his book the gutenberg galaxy (1962) he argued that print culture would be replaced by electronic interdependence with electronic media replacing visual culture with aural/oral culture. This would bring humankind together in a collective identity analogous to a village community. Think about the weaknesses in the notion of a global community.

Related Questions

A significant advantage of weather forecasting models is that theycontain âboundaries,â making small scale weather predictions moreaccurate.

True False

Land masses heat and cool faster than the ocean, therefore, globalisotherms tend to stay parallel when crossing different land/oceansurface conditions.

True False

The polar front blocks the movement of anticyclonic storms over thepolar regions, thereby lowering the amount of moisture the polarareas can receive.
True False
Please explain

With the question
An oceanographer is studying how the ion concentration in seawaterdepends on depth. She makes a measurement by lowering into thewater a pair of concentric metallic cylinders at the end of a cableand taking data to determine the resistance between theseelectrodes as a function of depth. The water between the twocylinders forms a cylindrical shell of inner radius ra, outerradius rb, and length L much larger than rb. The scientist appliesa potential difference ?V between the inner and outer surfaces,producing an outward radial current I. Let ? represent theresistivity of the water.
We realize that we integrate resistivity(Length/area) but then fromthe solution shown we integrate dR= resistivity(dr/(2pirL)) Weunderstand everything but why the L goes to the bottom of thisintegration.
Thanks.

Tiny solid and liquid particles suspended in the atmosphere are called aerosols. Windblown dust, sea salts, volcanic ash, smoke from wildfires, and pollution from factories are all examples of aerosols. Depending upon their size, type, and location, aerosols can either cool the surface, or warm it. They can help clouds to form, or they can inhibit cloud formation. And if inhaled, some aerosols can be harmful to people's health.

These maps show average monthly aerosol amounts around the world based on observations from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite. Satellite measurements of aerosols, called aerosol optical thickness, are based on the fact that the particles change the way the atmosphere reflects and absorbs visible and infrared light. An optical thickness of less than 0.1 (palest yellow) indicates a crystal clear sky with maximum visibility, whereas a value of 1 (reddish brown) indicates very hazy conditions.

High aerosol amounts are linked to different process in different places and times of year. High aerosol amounts occur over South America from July through September. This pattern is due to land clearing and agricultural fires that are widespread across the Amazon Basin and Cerrado regions during the dry season. Aerosols have a similar seasonal pattern in Central America (March-May), central and southern Africa (June-September, and Southeast Asia (January-April).

In other cases, however, aerosol concentrations are not related to fires. For example, from May through August each year, aerosol amounts rise dramatically around the Arabian Peninsula and nearby oceans due to dust storms. Elevated aerosol amounts nestle at the foothills of the Himalaya Mountains in northern India in some months, and linger over eastern China for much of the year. These elevated aerosol amounts are due to human-produced air pollution.

What is the most likely source of the high concentration of particulates that appear off the coast of northwestern Africa?

What is the most likely source of the high concentrations of particulates over central Africa and central South America?

What is the most likely source of the high concentrations of particulates over eastern China?

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GGRA02H3 Lecture Notes - Lecture 1: Cognitive Model, Mind Map, Absolute Time And Space

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