Geographical skills Flashcards
Define choropleth map
A thematic map in which areas are coloured or shaded to represent similarities and differences in the theme.
Define isoline map
Isoline map:a thematic map wherelines are drawn to link different places that share a common theme and filled in with colour to show contrasts of the theme
What do thematic maps show?
A thematic map shows the spatial distribution of a particular value in a geographic location.
Define flow line map
Map showing the flows of goods, people, information or ideas between places.
Define cartogram
A map in which the size of countries is adjusted to illustrate the distribution of a feature or statistic eg population size, hunger or poverty.
Define topographic map
A type of map characterised by large-scale detail and quantitative representation of relief features, usually using contour lines.
Information provided by synoptic charts
Synoptic charts provide information on the distribution, movement and patterns of air pressure, rainfall, wind and temperature.
The bars on the left represent what in a population pyramid?
Males
The bars on the right represent what in a population pyramid?
Females
The numbers up the vertical axis (the middle) represent what in a population pyramid?
Ages
The numbers along the horizontal axis (the bottom) represent what in a population pyramid?
Numbers or percentages of the population
Where are the younger and elder age groups located in a population pyramid?
Younger age groups: bottom
Elder age groups: top
Define age distribution
Age distribution: the proportionate numbers of persons in successive age categories in a given population.
Define dependent
Dependent: contingent on or determined by
Define economically active
Economically active: all people who, during a specified time, contribute to or are available to contribute to the production of economic goods and services
Define death rate
Death rate: the number of deaths per one thousand people per year.
Define birth rate
Birth rate: the number of live births per thousand of population per year.
Define ageing population
Ageing population: Refers to changes in the age composition of a population such as that there is an increase in the proportion of older persons
Define average life expectancy
Average life expectancy: the average period that a person may expect to live
Define fertility rate
Fertility rate: the average number of childbirths born to a women in her lifetime
What does a ‘triangular’ population pyramid shape indicate about the age distribution?
That the population is rapidly increasing, the fertility rate is high, the birth rate is high, the death rate is high, low ageing population and low average life expectancy.
What does a ‘beehive’ population shape indicate?
Declining fertility rate, declining population
Define eastings
The lines that run from the top of the page downwards. These numbers increase as you move left to right or eastward across the page.
Define northings
The lines running horizontally across the page. These numbers increase as you move from the bottom to the top or northward.
Rule in Area References
The rule to remember is Eastings before Northings (EBN)
How many numbers in AR
4, first two east then north
How many numbers in GR
6, first three east then north