47 Cards in this Set
| Front | Back |
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Isolines
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Connect places of equal value
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Contour Lines
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Point of equal elevation
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Isohyets
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Points of equal precipitation
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Isobars
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Points of equal barometric pressure
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Isotherms
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Points of equal temperature
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6 miles x 6 miles
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Congressional survey has townships ___ miles x ___ miles
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Principle meridians and base lines
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Congressional survey uses _______ and ____ ____ to form the survey framework
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Planes, Cones, Poly-cones, and Cylinders
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What are the surfaces for projections?
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true
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T/F A planimetric map is two dimensional
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False
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Vertical air photos do not have a scale
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Equator
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The ______ is the only line of latitude that is a great circle
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Conformal Map
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Shape of land map
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Legend
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symbolization used on a map
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Scale
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ration of the map to the area being mapped
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Virginia Military District
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Metes and bounds are found in___
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Western Reserve
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An example of a civil town is___
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Cartography
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science and profession of map-making
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Great Circle
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An imaginary circle drawn in any direction around its surface and whose plane passes through the center
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Hemisphere
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Every great circle divides earth into equal halves
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Small circles
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Circles whose planes do not pass through the center of the Earth
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Geographic Grid
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Lines that run east and west around the glove to mark latitude and lines that run north and south from pole to pole to indicate longitude
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International Date Line
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On the opposite side of earth from the prime meridian
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Base lines
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east-west lines
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Principal Meridians
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north-south lines
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False color
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Color infra-red film is also called...
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Equal Area
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a map projection on which any given areas of Earth's surface are shown in correct proportional sizes on the map
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Conformal
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a map projection that maintains the true shape of the smaller areas on Earth's surface
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Azimuthal
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a map projection that preserves the true direction from the map center to any other point on the map
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Compromise Projection
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not good for navigating
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Navigation
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the science of location and finding one's way, position, or direction
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Oblate Spheriod
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Earth's shape is a slightly flatenned sphere
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Coordinate system
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a precise system of grid lines used to descrie location
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North Pole
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maximum north latitude (90 degrees N) at the point marking the axis of rotation
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South Pole
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maximum south latitude (90 degrees south) at the point marking the axis of rotation
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Equator
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great circle of Earth midway between the poles; the zero degree parallel of latitude that divides Earth into the Northern and Southern Hempispheres
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latitude
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angular distance north or south of the equator
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sextant
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navigation instrument used to determine latitude by star and sun positions
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Prime Meridian
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half of a great circle that connects the North and South poles and marks zero degrees longitude. By international agreement, passes through the Royal Observatory at Greenwich, England
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meridian
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one half oaf a great circle on the globe connecting all points of equal longitude, all meridians connnect the North and South Poles
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solar noon
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the time of day when the sun angle is at maximum above the horizon
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gps
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uses satellites and computers to compute positions anywhere on Earth to within a few centimeters of their true location
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mercator projection
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mathematically produced, conformal map projection showing the compass bearings as straight lines
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equidistant
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a property of some maps that depicts distances equally without scale variation
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rhumb line
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line of compass bearing
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gnomonic projection
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planar projection with greatly distorted land and water areas; valuable for navigation bcause all great circles on the projection appear as striaght lines
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color composite image
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a digital image that combines several wave-length bands- a common color composite that is used resembles a near-infrared color photo
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side-looking airborne radar
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a radar system that is used for making maps of terrain features
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GEO 121: TEST 1