Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
72 Cards in this Set
- Front
- Back
cardinal directions |
Absolute direction |
|
Object directions |
Relative direction |
|
Places change in their similarity and differences through time |
Geography Dynamics
|
|
The geographers tool |
Maps |
|
the study of making maps |
cartography |
|
investigations to determine and accurately depict boundaries, coast lines, and landforms |
surveys |
|
set of imaginary lines that intersect at right angles to form a system of reference for locatiog points on the surface of earth |
geographic grid |
|
Points of reference |
1. equator 2. n and s poles 3.prime meridian
|
|
angular distance n or s of the equator |
latitude |
|
angular distance e or w of prime meridian |
longitude |
|
time zones |
360 of longitude 24 hrs in 1 day avg 15 of longitude |
|
designates the way the curved surface of the earth is represented on a flat surface |
map projection |
|
globe properties |
area shape distance direction |
|
maps that show correct areal relationships |
equal area projections |
|
maps that tend to preserve the shape of land masses or areas |
conformal projections |
|
these maps preserve true distance in all directions, but only from one central point or two central points |
equidistant projections |
|
maps that preserve direction from a central point on a particular map |
azimuthal projections |
|
blending and compromising between the four properties to find a maps which represents the surface of the earth well |
compromise projection |
|
the ratio between the measurement of something on the map and the corresponding measurement on the earth |
scale |
|
large scale |
small area great detail
|
|
small scale |
large area little detail |
|
depict shape and elevation of terrain |
topographic |
|
line showing equal elevation |
contour line |
|
where a dot represents some form of data |
dot density map |
|
shows how the amount of a phenomenon varies from one are to another area |
choropeth maps |
|
used to portray linear movement between places |
flow line maps |
|
used in many elementary schools during the 20th century |
Mercator projection |
|
GIS |
geographic info science |
|
a computer based set of procedures for assembling, storing, manipulating, analyzing, and displaying info. |
GIS |
|
data that includes some for of geographic info |
geographically referenced info |
|
a digital record of geographic info from sources |
geographic databases |
|
GIS products |
maps printed maps data tables
|
|
Users of GIS |
police ecologists planners and land developers retailers |
|
what geographers use to consider future trends and behavior |
models |
|
detecting the nature of an object and the content of an area without direct contact with the ground |
remote sensing |
|
record longwave radiation emitted by landforms, water bodies, and buildings to produce images of thermal radiation |
thermal scanning |
|
radio detecting and ranging |
radar |
|
good for monitoring heat and movement |
radar |
|
light detection and ranging |
lidar |
|
devices that use info from a set of 24 satellites to assess exact geographic locations |
global positioning system(GPS) |
|
large sections of the earths surface are characterized by similar geologic features |
landforms |
|
formed by the cooling of molten rock from earths interior |
igneous |
|
hardened lava often from a volcano |
igneous(extrusive) |
|
harden below ground and cool slower |
igneous(intrusive) |
|
composed of hardened particles of gravel, sand, silt, and clay |
sedimentary |
|
ex of sedimentary rocks |
sandstone limestone shale |
|
ex of ig(ex) |
basalt andesite obsidian |
|
ex of ig(In) |
granite gabbro
|
|
altered igneous or sedimentary rocks that have been under intense heat or pressure |
metamorphic
|
|
compression, tension, folding |
metamorphisis |
|
a break or fracture in rock where movement has happened |
fault |
|
the earths surface is comprised on a collection of plates that move in different directions |
plate tectonics |
|
a single landmass, known as Pangaea broke apart and the continents have moved very slowly away from each other based on plate dynamics |
continental drift |
|
certain plates are moving in different directions |
plate movement |
|
Partial melting of descending plate and upper mantle |
subduction zones |
|
great African rift valley |
spreading |
|
trenches and mountain building |
ocean activity |
|
when plates move over an area of regular magma upwelling |
hot spots |
|
magma determines the "violence" or explosiveness of a volcanic eruption. |
Volcanic eruptions |
|
mild eruptions |
basaltic lavas |
|
explosive eruptions |
andesitic lavas |
|
Lava flows |
basaltic lavas pahoehoe lava aalava
|
|
basaltic lavas |
exhibit fluid behavior |
|
Pahoehoe lava |
resembles twisted or ropey texture |
|
Aalava |
rough, jagged rocky texture |
|
very explosive and ashy |
andesitic volcanoes |
|
the downslope movement of rock and soil under the direct influence of gravity |
mass wasting |
|
controls and triggers of mass wasting |
water slope angle
|
|
the movement of the earth along a geologic fault or another point of weakness of or near the surface |
earthquake |
|
earthquake magnitude is determined using the |
richter scale |
|
the result of processes that loosen, dissolve, wear away, and remove earth and rock material |
erosion |
|
types of erosion |
running water ( grand canyon) heavy rain(gullying) ground water (sinkholes) (erodes limestone) continental glaciers (moraines) alpine glaciers (freezing&thawing of ice) waves&coastal erosion (beach nourishment) wind (dunes) (sand&dirt particles) |