Introduction to Human Geography...• Urban Geography: settlements, cities, and transportation...
Transcript of Introduction to Human Geography...• Urban Geography: settlements, cities, and transportation...
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INTRODUCTION TO HUMAN GEOGRAPHY AND ELEMENTS OF
HUMAN GEOGRAPHY
FOR SEMESTER 2 GEOGRAPHY (H) STUDENTS
PAPER - CC3 (THEORY)
TOPIC : 1
COMPILED BY
DR. RAJASHREE DASGUPTAASST. PROFESSOR, DEPT. OF GEOGRAPHY
GOVT. GIRLS’ GEN. DEGREE COLLEGE , KOLKATA -700023
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Questions that “Geography”
addresses:
• Where are things located?
• Why are they important?
• How are places related?
• How are places connected?
• How are humans affected by these
locations?
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Definition of Geography
• Scientific and systematic study of both the
physical and cultural features of the earth’s
surface. It is a spatial perspective looking at
patterns and distributions on the earth’s surface
• The word geography was invented by the Greek
scholar Eratosthenes. It is based on 2 Greek
words:
-Geo – “Earth”
-graphy – “to write”
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Difference between “Physical Geography” and
“Human or Cultural Geography:
• Physical Geography is the study of the four
spheres (Lithosphere, Atmosphere,
Hydrosphere, and Biosphere)
• Human (or Cultural) Geography is the study
of the spatial differentiation and
organization of human activity on the
earth’s surface.
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Approaches to the Study
of Geography
• Regional (Latin America, Sub-Saharan Africa,
Southeast Asia)
• Systematic (Human Geography, Physical
Geography, Historical Geography)
Latin America
Sub-Saharan Africa
Southeast Asia
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What is Physical Geography?
More specific!
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The Different Disciplines In Physical
Geography• Geomorphology: studies the form and structure of
the surface of the earth
• Climatology: involves the study of long term weather conditions on the earth
• Hydrography: concerns the distribution of water (oceans, rivers, lakes, and their uses)
• Biogeography: studies the flora (plant life) and the fauna (animal life)
• Pedology: study of the soils
• Ecology: studies the interactions between life forms and the environment
• Geology: study of rocks and the earth’s interior
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What is Human Geography?
Key Question!
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Human Geography (Definitions)
• The study of how people make places, how we
organize space and society, how we interact with
each other in places and across space, and how
we make sense of others and ourselves in our
locality, region, and world. (De Blij)
• The scientific study of the location of people & activities on the Earth’s surface, where & why human activities are located where they are, reasons geographers look at the world from a spatial perspective & interaction, and diffusion of people & ideas. (Rubenstein)
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What we study in Human Geography?
• Historical Geography
• Demography and Population Geography
• Political Geography: nations, boundaries, geopolitics, military movements, treaties, devolution, choke points, and imperialism
• Geography of Religions
• Geography of Languages
• Urban Geography: settlements, cities, and transportation systems
• Economic Geography: industries, economic development, and manufacturing regions
• Agricultural Geography
• Medical geography
• Social Geography
• Environmental Geography 3/21/2020
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HG Topic Example:
Globalization
A set of processes that are:
- increasing interactions
- deepening relationships
- heightening interdependence
without regard to
country borders.
A set of outcomes that are:
- unevenly distributed
- varying across scales
- differently manifested
throughout the world.
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Affect of Communication and
Transportation• We are more interconnected as modes of communication and
transportations become more advanced.
• The advances in the these two things have made us more
interconnected.
– Example:
• Buggy's ----> Cars
• Sailboats ----> Steamboats
• Postal mail ----> e-mail
Buggy's are slow and cars can travel at higher speeds. Therefore,
information and goods can reach destinations faster.
The advances in technology make our world more
interconnected.
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1st – Hyperglobalization view
• Open markets and Free Trade are good for
everyone in the long run and will allow
everyone to share in economic prosperity
• Work will eventually become borderless as
national governments become
meaningless, government’s only role will be
to foster trade.
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2nd – Skeptical View
• Globalization is “much ado about nothing”
• Globalization is exaggerated
• The world has been to this point before =
Gold Standard
• Accentuate Regionalization (Europe, N.
America, Japan)
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3rd – Transformationalist View
• View globalization as a powerful force that
is changing the world not just a repeat of
the 19th Century. However, they make no
assumptions to the effect of globalization
on the nation state
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Negative Issues Associated with
Globalization • Environmental
• Health Issues (HIV/AIDS, SARS)
• Security (9/11)
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Imagine and describe the most remote
place on Earth you can think of 100 years
ago. Now, describe how globalization has
changed this place and how the people
there continue to shape the place – to
make it the place it is today.
Remember your summer reading…………
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Geographic Thought
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Five Themes of Geography
• Location
• Place
• Region
• Movement
• Human-Environment
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Location
Location-position on the earth’s surface
• Absolute Location: use of grids – (i.e.
latitude and longitude)
• Relative Location: a way of expressing a
location in relation to another site
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Site and Situation• Site-the physical character of a place. (climate, water
sources, topography, soil, vegetation, latitude, elevation) the combination of physical features gives each place distinctive character.
• Situation– the location of a place relative to other places.
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Place
Place – specific geographic settings with distinctive physical, social, and cultural attributes
• Sense of place: infusing a place with meaning and
emotion.
• Perception of place: belief or understanding of what a
place is like, often based on books, movies, stories, or
pictures.
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Where Pennsylvanian
students prefer to live
Where Californian
students prefer to live
Perception
of Place
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The Cultural Landscape
• The visible expression of human
activity
• The natural landscape as modified
by human activities and bearing
the imprint of a culture group
• Can also be called the “Built
Environment”
Religion and
cremation
practices
diffuse with
Hindu migrants
from India to
Kenya.
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Sequent Occupance
Dar es Salaam, Tanzania
African, Arab, German, British, and Indian layers to the city.
Apartment in Mumbai, India Apartment in Dar es Salaam, Tanzania
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Movement
Spatial analysis: the study of geography
phenomena on the earth’s surface
- how are things organized on Earth?
- how do they appear on the landscape?
- Why of where? and so what?
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Geographic inquiry
focuses on the SPATIAL:
1. Distance
2. Accessibility
3. Connectivity
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Distance Decay
•Tobler’s First law of geography:
Everything is related to everything else,
but near things are more related than
distant things.
•Therefore the interaction between places
diminishes in intensity and frequency as
distance between them increases
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Distance Decay
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Friction of distance
•The deterrent or inhibitory effects
of distance on human activity
– - The farther people have to travel, the
– less likely they are to do so.
– - Examples?
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Utility
• Utility: refers to a place’s usefulness to a
particular person or group.
– 1. Maximize the overall utility of places at
– minimum effort
– 2. Maximize connections between places at
– minimum cost
– 3. Locate related activities as close together
– as possible
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Utility
• 1 Beach
• 2 Ice Cream stands
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Accessibility
•The opportunity for contact or
interaction from a given point in
relation to other points
– -“How easy or difficult is it to overcome the friction of distance?”
– -Is the “Place” isolated or easily accessible?
•Levels of Accessibility have changed
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Connectivity • Contact or
interaction depends
on channels of
communication
and transportation
• The tangible and
intangible ways in
which places are
connected
Ex: Telephone Lines, streets, pipelines, radio and TV broadcast
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4 Basic Concepts of Spatial
Interaction
1. Complementarity: There must be some
form of Supply and Demand that match
between places
• - world resources:
• oil, division of labor
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4 Basic Concepts of Spatial
Interaction2. Transferability: Factors = the Cost of
moving a particular item and the ability of
the item to bear the cost
- coal, fruits/vegetables, information
- changes over time
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4 Basic Concepts of Spatial
Interaction
3. Intervening Opportunity: Alternative origins
and destinations that arise between two
points
• Principle of Intervening Opportunity
“Spatial Interaction between an origin and a destination will be proportional to the number of opportunities at that destination and inversely proportional to the number or opportunities at alternative destinations”
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4 Basic Concepts of Spatial
Interaction
4. Spatial Diffusion: the way that things
spread through space and over time
• Diffusion occurs as a function of statistical
probability, based on principles of distance
and movement
• Typically follows an S-curve:
Slow Build, Rapid Spread, and Leveling Off
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S-Curve for Diffusion
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Culture
Culture is an all-encompassing term that
identifies not only the whole tangible lifestyle
of peoples, but also their prevailing values
and beliefs.
- cultural trait
- cultural complex
- cultural hearth
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Diffusion
- the process of dissemination, the spread of
an idea or innovation from its hearth to other
areas.
What slows/prevents diffusion?
- time-distance decay
- cultural barriers
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Two Types of Diffusion
1. Expansion Diffusion – idea or innovation
spreads outward from the heart.
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a. Contagious – spreads adjacently
b. Hierarchical– spreads to most
linked people or places first.
c. Stimulus– idea promotes a local experiment or change in the way people do things.
Expansion Diffusion
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Stimulus
Diffusion
Example:
Because Hindus believe cows are
holy, cows often roam the streets in
villages and towns. The McDonalds
restaurants in India feature veggie
burgers.
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Types of Diffusion
2. Relocation Diffusion – movement
of individuals who carry an idea
or innovation with them to a
new, perhaps distant locale.
Kenya
Paris, France
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Example: Spatial distributionWhat processes create and sustain the pattern of a distribution?
Map of Cholera Victims
in London’s Soho District
in 1854.
The patterns of victim’s
homes and water pump
locations helped uncover
the source of the disease.
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Spatial Distribution
•The arrangement of items on the
earth’s surface
•Analyzed by the elements common
to all spatial distributions
•Density, Dispersion, and Pattern
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Density
•The measure of the number or
quantity of anything within a
defined unit of area
•Always number in relation to area
•Normally used comparatively
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Density
• GA pop. Density = 141 per/sq mi
• Is that a high density?
• Who knows… we must look comparatively – Ohio = 277, Michigan = 175,
– New Jersey = 1134
• Therefore GA has a low Density
• Wyoming = 6
• Gwinnett? 1360
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Dispersion
•Spread of a phenomenon over an area
•Not how many or how much but how far things are spread out
1. Clustered/Agglomerated = spatially close together
2. Dispersed/Scattered = spread out
– - Dispersion can change depending on scale
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Pattern
•The geometric arrangement of objects in
space
•Pattern refers to distribution, but the
reference emphasizes design rather than
spacing
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Linear Pattern
•Linear Patternstypically depict houses along a street or towns along a railroad
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Centralized Pattern
•Centralized Patterns typically involve items concentrated around a single node
•Ex: Center City with surrounding suburbs
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Random Pattern
•An unstructured irregular distribution
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Regions
1. Formal/Uniform region: defined by a
commonality, typically a cultural linkage or a
physical characteristic.
e.g. German speaking region of Europe
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Regions
2. Functional/Nodal region: defined by a set of social, political, or economic activities or the interactions that occur within it.
e.g. an urban area, magazine circulation, radio station
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Regions
3.Perceptual Region/Vernacular: ideas in our
minds, based on accumulated knowledge of
places and regions, that define an area of
“sameness” or “connectedness.”
– e.g. the South
the Mid-Atlantic
the Middle East
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The meanings of regions are often contested. In Montgomery,
Alabama, streets named after Confederate President Jefferson Davis
and Civil Rights leader Rosa Parks intersect.
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Region v. Realm
• Realms are larger, and often encompass
several regions
– e.g.
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“core-domain sphere” model
–Created by Donald Meinig
• - Core Region: distinctive attributes
• - Domain: dominant but not exclusive
• - Sphere: present but not dominant
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What are Geographic
Questions?
Key Question:
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Why do Geographers use Maps,
and What do Maps Tell Us?
Key Question:
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Two Types of Maps:
Reference Maps
- Show locations of
places and geographic
features
- Absolute locations
What are reference
maps used for?
Thematic Maps
- Tell a story about the
degree of an attribute,
the pattern of its
distribution, or its
movement.
- Relative locations
What are thematic maps
used for?
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Reference
Map
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Thematic Maps
• Thematic Maps: a map depicting a specific
spatial distribution or statistical variation of
abstract objects (e.g. unemployment) in
space
• TYPES: Graduated Circle, Dot-Distribution,
Isopleth, and Choropleth
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Thematic
Map
What story
about median
income in the
Washington, DC
area is this map
telling?
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• Graduate Circle Map
• Uses circles of
different sizes to
show the frequency
of occurrence of a
certain topic.
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• Dot-distribution Map
• A single of specified
number of
occurrences are
recorded by a single
dot
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• Isopleth Map
• Calculation refers
not to a point but to
an areal statistic
• The isoline connects
average values per
unit
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• Choropleth Map
• Present average
value of the data
studied per
preexisting areal
unit
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Mental Maps:
• maps we carry in our minds of places we
have been and places we have heard of.– can see: terra incognita, landmarks, paths, and accessibility
Activity Spaces:
• the places we travel to routinely in our
rounds of daily activity.– How are activity spaces and mental maps related?
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Geographic
Information
System:a collection of
computer hardware
and software that
permits storage and
analysis of layers of
spatial data.
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Remote
Sensing:a method of
collecting data by
instruments that
are physically
distant from the
area of study.
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Why are Geographers Concerned
with Scale and Connectedness?
Key Question:
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Scale
Scale is the territorial extent of something.
The observations we make and the context
we see vary across scales, such as:
- local
- regional
- national
- global
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Scale
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Scale is a powerful concept because:
• Processes operating at different scales influenceone another.
• What is occurring across scales provides contextfor us to understand a phenomenon.
• People can use scale politically to change who isinvolved or how an issue is perceived.– e.g. Zapatistas rescale their movement
– e.g. laws jump scales, ignoring cultural differences
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Old Approaches to
• Human-Environment Questions:
– Environmental Determinism (has been
rejected by almost all geographers)
– Possibilism (less accepted today)
New Approaches to
• Human-Environment Questions:
– Cultural ecology
– Political ecology
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The Importance of “Physical
Geography” to “Human Geography”
(environment)
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Koppen Classification System of Climateshttp://www.uwsp.edu/geo/faculty/ritter/geog101/textbook/climate_systems/climate_classification.html
Climate Types
1. Humid Equatorial Climates (Tropical: Class A)
• Af – no dry season
• Am – Short dry season
• Aw – dry winters (S.W. Florida)
2. Dry Climates (Dry: Class B)
• Bs – Semiarid
• Bw – Arid
3. Humid Temperate Climates (Temperate: Class C)
• Cf – no dry season
• Cw – dry winter
• Cs – dry summer
4. Humid Cold Climates (Cold: Class D)
• Df – no dry season
• Dw – dry winter
5. Cold Polar (tundra and ice) (Polar: Class E)
6. Highland Climates (Vertical)
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Other ideas related to climate…
• Greenhouse Effects (anthropogenic – human caused) –
Global Warming caused by the release of greenhouse
gases
• ENSO – (El Nino Southern Oscillation) – areas of regional
warming
• Soils – (fertility and degradation)
• Global Distribution of Precipitation
– Monsoons – system of low-level winds blowing into a continent in Summer and out of it in the winter (Southern Asia)
– Intensity – Regularity
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Ecosystems or Ecological Systems
• Ecosystems are living communities of plants and animals that
share common characteristics – primarily related to climate, soil,
and vegetation
– Abiotic Elements – those that are non-living but that affect systems (water, heat, relief, nutrients, rocks, atmosphere)
– Biotic Elements – those living elements of the ecosystem (plants and animals)
• Food Chains (sequences of consumption)
• Biomes (large subdivisions of terrestrial ecosystems found in the
world)
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Major Biomes and Desertification of the Sahel
• Major Biomes
– Tundra
– Boreal Forest or Taiga
– Temperate Broadleaf Deciduous Forest
– Tropical Broadleaf Evergreen Forest
– Tropical Savanna
– Desert scrub
– Temperate Grasslands
– Mediterranean Scrub
• Desertification of the Sahel
– A semiarid region of north-central Africa south of the Sahara Desert. Since the 1960s it has been afflicted by prolonged periods of extensive drought.
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The Management of Global
Ecosystems
• sustainability – main method of management
• Major Problems
– Tropical Rainforests – Removal of trees results in removal of nutrients for soil, less oxygen produced and more CO2 remains in the atmosphere
– Acid Rain – sulfur dioxides and nitrogen oxides emitted from power stations are carried by winds and when precipitation occurs it pollutes lakes and rivers (pollution from Britain and Western Europe has damaged Scandinavia and Eastern European countries: also, pollution from the Midwestern states has damaged the Great Lakes and Eastern Canada
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Absolute Location
• Mathematical location
– Latitude & Longitude
• degrees, minutes, seconds
– Township & Range (1785 Land Ordinance)
• Subdivision: parallels & meridians
• Topographic quadrangle, US Geological Survey
– Metes & Bounds
• is a system or method of describing land, 'real' property (in contrast to personal property) or real estate
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Latitude & Longitude
Hong Kong
22º N, 114º E
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Longitude and Latitude
• Meridian: an arc drawn between North and
South Poles
• Parallel: circle drawn around the globe
parallel to the equator and at right angles to
the Meridians
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Longitude and Latitude
• Location of Meridians are determined by a
numbering system known as Longitude
– 0° Longitude = Greenwich England
– The Prime Meridian
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Longitude and Latitude
• Latitude: numbering system used to
represent parallels
• Equator = 0°
• N. Pole = 90 °N
• S. Pole = 90 °S
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Longitude and Latitude
• Longitude: numbering system used to
represent meridians
• Prime Meridian = 0 °
• Longitude Lines in 15 ° intervals either East
or West
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Relative Location
“Place” in relationship
to surroundings
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The Natural Landscape
• the physical environment unaffected by
human activities
• Climate and soil, the presence or absence of
waters supplies and mineral resources, terrain
features
• Help provide the setting for human action
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Physical Characteristics
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Sequent OccupanceLayers of imprints in a cultural landscape that reflect
years of differing human activity.
Athens, Greece
ancient Agora
surrounded by
modern buildings
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Development of Geographic Thought
“Four Traditions of Geography” (Patterson’s - U. of Chicago –
1964)
• Earth Science Tradition (physical geography approach)
• Locational Tradition (use of satellite imaging-mapping)
• Cultural-Environment Tradition (impact of deforestation)
• Area-Analysis Tradition (regional patterns of development)
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Development of Geographic Thought
Why Geography Matters [DeBlij’s address to NCGE (National Council of Geographic Education) – 1999]
• Age of Exploration (China, European, Islamic)
• Globalization (expansion of economic and political activities aided by information technology and transportation)
• Devolution (regions within countries demanding autonomy
• Supranationalism (E.E.C., A.P.E.C., N.A.T.O.)
• Environmental Degradation
• Remote Sensing (spy satellites – used in Iraq and Afghanistan)
European Economic Commission
Asia-Pacific Economic Cooperation North American Trade Organization
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