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62 Cards in this Set
- Front
- Back
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As wavelength increasesthe frequency does this |
Decreases (inversely related) |
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As the frequency of EMRincreases the energy doesthis |
increases |
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The relationship betweenpeak wavelength andtemperature according toWien’s Displacement |
inverse |
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According to StephanBoltzmannLaw the totalenergy radiated of ablackbody is a function of this |
temperature |
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The Sun’s peak radiationis located in this part ofthe spectrum |
visible |
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The portion of the spectrumthat corresponds towavelengths from 0.4 mm to0.7mm |
visible light |
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Name for regions of theelectromagnetic spectrumwhere EMR can pass throughthe atmosphere |
atmospheric window |
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One of the gases responsiblefor the atmosphericabsorption of electromagneticenergy |
water vapor, carbon dioxide, ozone |
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Healthy vegetation reflectsa high amount in this partof the spectrum and lowamount in this part of thespectrum |
Near infrared, visible red |
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In vegetation the decrease inreflectivity in the Shortwaveinfrared is due to this |
water content |
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Small registration marks locatedalong the edge and corners of anaerial photograph |
fiducial bands |
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The goal of this USDAprogram is to obtain imageryduring the growing seasoneach year |
NAIP |
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This element of air photointerpretation is the spatialarrangement of objects |
pattern |
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This is an aerial photo thathas been geometricallycorrected and has auniform scale |
orthophoto |
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The tendency of object to leanaway from the principal pointin air photos is known as |
relief, or radial displacement |
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Spatial data type that representsdata as a rectangular matrix ofsquare cells |
raster |
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The length that one side ofsingle pixel represents onthe ground |
spatial resolution |
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The range of the pixelvalues (digital numbers) inan image with 8-bitradiometric resolution |
0-255 or 256 |
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Term that describes how many“bands” an instrument recordsor how “wide” each band is |
spectral resolution |
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Graphical representationof the distribution of pixelnumbers (DNs) in animage band |
histogram |
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RADAR is an example ofthis type of remotesensing |
active remote sensing |
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The white appearance ofclouds is due to thisphenomenon |
non-selective scatter |
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In water, a significant increasein the reflectance in greenwavelengths generally indicatesthe presence of this |
algae blooms |
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Type of geometricdistortion that occurs inimages due to the effectsof the Earth’s rotation andcamera angles |
systematic distortion |
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Rough surfaces thatreflect uniformly in alldirections |
diffuse or lambertian |
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What is energy? |
measure of the ability to do work |
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What forms does energy take? |
potential, kinetic |
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What is the law of conservation of energy? |
energy can be created but not destroyed |
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three types of energy transfer |
conduction, convection, radiation |
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what kind of energy is electromagnetic energy? |
kinetic |
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What is EMR? how is it produced? |
electromagnetic energy that is transferred by radiation. It is produced when charged particles are accelerated by forces acting on them. |
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What is EMR made of? |
radio waves, light, infrared radiation |
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What is a major source of EMR? |
the sun |
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the distance from one wave peak to the next |
wavelength |
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the number of peaks passing a fixed point in a space per given time unit |
frequency |
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according to plancks equation, how is energy related to wavelength? |
inversely |
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hypothetical ideal radiator that totally absorbs all incoming radiation and emits all energy |
blackbody |
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three regions of infrared radiation |
near infrared, shortwave infrared, far infrared |
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The earth's atmosphere can ______, ______, or ______ electromagnetic radiation |
transmit, reflect, absorb |
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This satellite/sensor has provided forty years of near-continuous data |
Landsat |
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This imagery is usually produced once a year during the growing season |
NAIP |
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This sensor/satellite has the best spatial resolution currently available |
Worldview-3 |
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This sensor/satellite covers the entire Earth's surface every one to two days and has high spectral resolution |
MODIS |
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This satellite/sensor has a return time of approximately 16 days |
Landsat |
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TF The center of an aerial photograph is known as the fiducial marker |
true |
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Systematic distortions can be corrected relatively easily and occur due to the effects of the Earth's rotation and camera angles, etc. |
True |
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An orthophoto is an aerial photgraph that has been corrected for spectral distortion |
False |
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an image that is made up of any band combinations other than the visible red, green, and blue bands is known as a |
false color composite |
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____ refers to the amount of time it takes a satellite or sensor to pass over the same location again |
temporal resolution |
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the tendency for an object to lean away from the center of an aerial photograph is known as ___ |
radial displacement |
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how finely a satellite or sensor divides up the radiance it receives in each band |
radiometric resolution |
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snow generally has higher reflectance in the ______ portion of the spectrum and lower reflectance in the ________ |
high: visible, low: near IR |
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the atmosphere absorbs nearly all of the incoming solar radiation in this portion of the electromagnetic spectrum |
Ultraviolet |
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LIDAR is an example of this type of remote sensing |
active |
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the portion of the electromagnetic spectrum that ranges from 0.4 - 0.7 um |
visible |
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type of remote sensing that detects natural radiation emitted or reflected by objects |
passive |
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The earths peak radiation is in this part of the electromagnetic spectrum |
thermal infrared |
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healthy vegetation has the greatest reflectance in this portion of the spectrum |
near IR |
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scattering of light by particles much smaller than the wavelength of light is known as: |
raleigh scatter |
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according to the stefan-boltzmann law, the total energy radiated from a blackbody is a function of its |
EMR |
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when solar radiation hits an object, it may be transmitted, reflected, or |
absorbed |
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the reflectance divided by incoming radiation in specific wavelengths |
spectral reflectance |
