Chapter 2 - Portraying Earth Flashcards
___ is the type of remote sensing imagery best suited to use at night.
Thermal infrared
The first aerial photographs were taken in…
The middle 1800s
Of the following which is NOT considered a map essential?
Color
Which of the following is essential for GPS to function?
Highly accurate clocks
The relationship between the map distance and the corresponding distance on the ground is known as the…
Scale
The scale of one inch to one mile is ___ in a representative fraction.
1:63,360
Which of the below, because of the wavelength it uses, tends to have the low spatial resolution of Earth surface features?
Microwave remote sensing
The “false color” imagery of some aerial photographs is also termed…
Color IR
Which mapmaking method would be used to minimize distortion of continents on a world map?
An interrupted projection
The characteristic of projections which portray accurate sizes but distort the shapes of land masses is called…
Equivalence
Aside from normal photographic film, ___ film has proven very valuable for interpretation of earth resources from airborne cameras.
Color infrared
Central meridians are essential features in an ___ projection.
Interrupted
Which of the following is considered a “perfect” map projection in terms of the amount of distortion associated with it?
None of the above
All map projections have this in common.
Some distortion
A major disadvantage of oblique aerial photographs as compared to vertical air photographs is that…
Accurate measurement is more difficult
___ is the science of obtaining reliable measurements from photographs.
Photogrammetry
One difference between any two different map projections must always be…
How the geographic grid is arranged
Most of the maps are drawn on ___ projections for an optimal portrayal of worldwide dimensions.
Equivalent
Conformal maps greatly distort ___ of continents in higher latitudes.
Shapes
By far, the greatest use of thermal IR scanning systems has been…
Onboard meteorological satellites
On which type of aerial imagery would a football field of artificial grass be discernible from natural grass?
Color infrared photography
Microwave imagery is ideally suited for sensing…
Moisture
On large scale maps, equivalence and conformity can be…
Simultaneously approximates for small areas
The first airborne platform for aerial photography was a…
Balloon
Map projections are mainly derived…
Mathematically
The scale of 1:63,360 is the same as one inch equals…
One mile
On small scale maps, it is difficult to achieve…
Equivalence
In ___ film photography, the photographic film is sensitive to wavelengths longer than visible light.
Color infrared
An ___ is the generic term for any map line which joins points of equal value.
Isoline
The property of equivalence portrays accurate size although it…
Distorts shapes
The most famous and, undoubtedly, most widely used of all map projections is the ___ projection.
Mercator
A loxodrome is another term for a…
Rhumb line
The main purpose of the interruption of projections is…
To highlight continents with minimum distortion
The type of remote sensing which penetrates clouds at night for accurate terrain representation is…
Radar
A line connecting points with equal precipitation is known as an…
Isohyet
Isolines have all the properties EXCEPT the following:
They may cross eachother
A ___ scale remains correct even if the map is enlarged or reduced when reproduced.
Graphic
The first cartographer to use isolines on a published map was…
Halley
Three dimensional effects are best obtained with…
Vertical aerial photographs
Together, title, date, and legend on a map are known as…
Map essentials
Which remote sensing systems sense the longest wavelengths?
Microwave imaging
A disadvantage of globes compared to maps is that globes are not…
Portable
The original purpose of the Mercator projection was for…
Ocean navigation
In the Mercator projection, which piece of the earth is portrayed ridiculously large in comparison to it’s actual size?
Greenland
Radar is an “active” remote sensing system and ___ is a “passive” system using the same wavelengths.
Microwave sensing
Which or the following refers to an “active” remote sensing system?
Radar
The most important earth resources satellite series was started in the 1970s and is known as…
Landsat
Unlike aerial photography, Landsat imagery is interpreted through…
Numerical manipulation of various wavelengths
MODIS is associated with which satellite series?
EOS
Satellite data are analyzed in individual pieces representing several to many meters on the earth’s surface. These pieces are known as…
Pixels
Which of the following bands are NOT used by earth-sensing satellites mentioned in the text?
X-rays
On color infrared photography, living green vegetation would appear…
Red
If one wishes to produce a map which focused on the continents and showed little of the world’s oceans, the they should use an ___ projection.
Interrupted
A loxodrome is…
A line of constant compass bearing
A Mercator map is constructed by projecting the grid of the globe onto a…
Cone
Which of the following is the most recent type of earth resource satellites?
EOS
Which of the following is an advantage of radar over all other remote sensing techniques?
It can operate at night
Which of the following should contain a brief summary of map’s content or purpose?
The title
The explanation of symbols used on a map should be contained in…
The legend
Which of the following is most closely identified with “multispectral remote sensing”?
Landsat
Every map projection consists of an orderly arrangement of…
The geographic grid
Misuse of the Mercator projection is a result of…
Latitudinal differences in scale
How much area is shown in an entire Landsat image?
A few thousand square kilometers