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Study sets matching "remote sensing"

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Study sets matching "remote sensing"

105 terms
Remote Sensing
bilinear interpolation
cubic convolution
destriping
DOS
calculates value for each output pixel based on a weighted av…
most widely used; uses weighted average of values within a ne…
application of algorithms to adjust incorrect brightness valu…
direct method for adjusting digital values for atmospheric de…
bilinear interpolation
calculates value for each output pixel based on a weighted av…
cubic convolution
most widely used; uses weighted average of values within a ne…
17 terms
Remote Sensing Equations & Definitions
Index of refraction
Snell's Law
Stefan-Boltzmann Law
Wein's Displacement Law
The index of refraction is given by n. The measure of the opt…
Snell's law describes refraction by stating that for a given…
The amount of energy emitted by an object is a function of it…
When the temperature of a blackbody object increases, the ove…
Index of refraction
The index of refraction is given by n. The measure of the opt…
Snell's Law
Snell's law describes refraction by stating that for a given…
89 terms
remote sensing
scattering
absorption
reflection
emission
The process which electro magnetic radiation or particle are…
(elm) radiation magnetic is the way in which energy of photon…
Throwing back by body or surface light,heat or sound.
Of air notably flue gas exciting the atmospphere via a flute.…
scattering
The process which electro magnetic radiation or particle are…
absorption
(elm) radiation magnetic is the way in which energy of photon…
10 terms
Remote Sensing
Name the 5 families of the Algorithm t…
Radiometric Corrections
Geometric Corrections
What pattern do you recognize in patte…
1. Radiometric Correction... 2. Geometric Correction... 3. Image En…
DNs change
Change the spatial arrangement of pixels or adjust DN's... based…
Spectral, spatial, and temporal
Name the 5 families of the Algorithm t…
1. Radiometric Correction... 2. Geometric Correction... 3. Image En…
Radiometric Corrections
DNs change
48 terms
Remote Sensing
Advantages of remote sensing over othe…
Disadvantages of remote sensing over o…
What is remote sensing?
3 common applications for remote sensi…
1. Covers greater area, so more context and better perspectiv…
1. Interferance: atmosphere, tree canopy, clour cover, etc.…
the acquisition of information about an object or phenomenon…
1. Monitoring vegetation health... 2. Management of land use... 3.…
Advantages of remote sensing over othe…
1. Covers greater area, so more context and better perspectiv…
Disadvantages of remote sensing over o…
1. Interferance: atmosphere, tree canopy, clour cover, etc.…
220 terms
Remote Sensing 2
Detector
What can a detector detect?
What kinds of scientists benefit from…
How does remote sensing measure spatia…
measures changes in intensity with wavelength
-physical properties of a material... -spatial variations... -tempo…
-atmospheric... -biologic... -oceanic... -geographic/geologic
X & Y (latitude and longitude), and Z (topographic location)
Detector
measures changes in intensity with wavelength
What can a detector detect?
-physical properties of a material... -spatial variations... -tempo…
105 terms
Remote Sensing
bilinear interpolation
cubic convolution
destriping
DOS
calculates value for each output pixel based on a weighted av…
most widely used; uses weighted average of values within a ne…
application of algorithms to adjust incorrect brightness valu…
direct method for adjusting digital values for atmospheric de…
bilinear interpolation
calculates value for each output pixel based on a weighted av…
cubic convolution
most widely used; uses weighted average of values within a ne…
38 terms
Remote Sensing
RADAR
LIDAR
TM
ETM+
short for Radio Detection and Ranging. It transmits radio wav…
short for Light Detection and Ranging. It is similar to RADAR…
stands for Thematic Mapper. It was introduced in the Landsat…
stands for Enhanced Thematic Mapper Plus. It replaced the TM…
RADAR
short for Radio Detection and Ranging. It transmits radio wav…
LIDAR
short for Light Detection and Ranging. It is similar to RADAR…
61 terms
Remote Sensing
Geometric corrections
Radiometric corrections
Noise Removal
Subsetting/Clipping
Correcting radiometric and geometric errors in data, image re…
Enhancing images based on the value of individual pixels; Ex.…
Remove unwanted noise from images, de-stripping for Landsat 7…
Taking a subset of a larger image to narrow in on the area of…
Geometric corrections
Correcting radiometric and geometric errors in data, image re…
Radiometric corrections
Enhancing images based on the value of individual pixels; Ex.…
23 terms
Remote Sensing
Types of Resolution
Panchromatic
Multispectral
Hyperspedctral
Spatial (What area and how detailed)... Spectral (What Colours/B…
One Band (Black and White)
Four Plus Bands (RGBNIR)
Hundreds of Bands
Types of Resolution
Spatial (What area and how detailed)... Spectral (What Colours/B…
Panchromatic
One Band (Black and White)
220 terms
Remote Sensing
Detector
What can a detector detect?
What kinds of scientists benefit from…
How does remote sensing measure spatia…
measures changes in intensity with wavelength
-physical properties of a material... -spatial variations... -tempo…
-atmospheric... -biologic... -oceanic... -geographic/geologic
X & Y (latitude and longitude), and Z (topographic location)
Detector
measures changes in intensity with wavelength
What can a detector detect?
-physical properties of a material... -spatial variations... -tempo…
28 terms
Remote Sensing
Remote Sensing Definition
Atmospheric Windows
Atmospheric Correction
Basic wave law
Obtaining information about earth's surface from measurements…
Refers to the parts of EMR spectrum that let EMR through effe…
The process of removing the effects of the atmosphere on the…
Speed of Light = wavelength x frequency
Remote Sensing Definition
Obtaining information about earth's surface from measurements…
Atmospheric Windows
Refers to the parts of EMR spectrum that let EMR through effe…
91 terms
Remote Sensing
Remote Sensing
Standard Untit
Algorithm
Vector Data
the scanning of the earth by satellite or high-flying aircraf…
Kilo (1000), Mega (1,000,000), Giga (1,000,000,000)
A set of steps to solve a problem
Point, Line, Area data
Remote Sensing
the scanning of the earth by satellite or high-flying aircraf…
Standard Untit
Kilo (1000), Mega (1,000,000), Giga (1,000,000,000)
125 terms
remote sensing
spectral vegetation index
first NASA Landsat launch
Thematic Mapper sensor satellites and…
Landsat ETM+ imagery spatial resolution
use spectral signature of intercepted fraction of photosynthe…
1972
Landsat 4 1982, Landsat 5 1984, Landsat 6 1993 failed, Landsa…
15 m panchromatic... 30 m multispectral bands... 60 m thermal infra…
spectral vegetation index
use spectral signature of intercepted fraction of photosynthe…
first NASA Landsat launch
1972
77 terms
Remote Sensing
Define remote sensing
Explain the process of remote sensing…
Electromagnetic radiation consists of…
What is electrical field
acquiring information about the Earths surface without contact
1. A source that provides electromagnetic energy to the given…
Electrical field and magnetic field
A direction perpendicular to the the direction the radiation…
Define remote sensing
acquiring information about the Earths surface without contact
Explain the process of remote sensing…
1. A source that provides electromagnetic energy to the given…
64 terms
Remote Sensing
Incident Radiation
Path Length
Transmission
Index of Refraction
All EMR impinging upon matter
Distance radiation has traveled through atmosphere before sen…
Energy passes through matter with measurable change (light ru…
Ratio of velocity in a vacuum to velocity in a medium
Incident Radiation
All EMR impinging upon matter
Path Length
Distance radiation has traveled through atmosphere before sen…
17 terms
Remote Sensing Equations & Definitions
Index of refraction
Snell's Law
Stefan-Boltzmann Law
Wein's Displacement Law
The index of refraction is given by n. The measure of the opt…
Snell's law describes refraction by stating that for a given…
The amount of energy emitted by an object is a function of it…
When the temperature of a blackbody object increases, the ove…
Index of refraction
The index of refraction is given by n. The measure of the opt…
Snell's Law
Snell's law describes refraction by stating that for a given…
72 terms
Remote Sensing
In situ errors
How far is remote
Human vision importance
Remote sensing advantages
spatial and temperal, intrusive, instrument error due to cali…
no clear def., usually refers to airborne and satellite platf…
contrast more important than absolute brightness
unobtrusive, removes sampling bias, record info beyond human…
In situ errors
spatial and temperal, intrusive, instrument error due to cali…
How far is remote
no clear def., usually refers to airborne and satellite platf…
Remote Sensing
tone in remote photos can describe
geometric characteristics linear, curv…
smooth, intermediate, rough-course, mo…
spatial arrangement of objects on grou…
band of electromagnetic energy recorded by the remote system…
shape
texture
pattern of object
tone in remote photos can describe
band of electromagnetic energy recorded by the remote system…
geometric characteristics linear, curv…
shape
34 terms
Remote Sensing Short Definitions
Photoelectric effect
Steradian
Zenith
Nadir
When matter is heated to high temperatures, an electron norma…
The SI unit of the solid angle measure (Ω).
The highest point of the sun when it is directly above the su…
The point on the ground directly in line with the remote sens…
Photoelectric effect
When matter is heated to high temperatures, an electron norma…
Steradian
The SI unit of the solid angle measure (Ω).
34 terms
Remote Sensing Short Definitions
Photoelectric effect
Steradian
Zenith
Nadir
When matter is heated to high temperatures, an electron norma…
The SI unit of the solid angle measure (Ω).
The highest point of the sun when it is directly above the su…
The point on the ground directly in line with the remote sens…
Photoelectric effect
When matter is heated to high temperatures, an electron norma…
Steradian
The SI unit of the solid angle measure (Ω).
8 terms
Remote Sensing - Chapter 2
Energy
Three ways energy can be transferred
Conduction
Convection
The ability to do work
1. Conduction... 2. Convection... 3. Radiation
When one body (molecule or atom) transfers its kinetic energy…
Kinetic energy of bodies is transferred from one place to ano…
Energy
The ability to do work
Three ways energy can be transferred
1. Conduction... 2. Convection... 3. Radiation
74 terms
Remote Sensing - Chapter 1
Thermometer
Anemometer
Psychrometer
in situ
Measures temperature of the air
Measures wind speed
Measure air humidity
on-site
Thermometer
Measures temperature of the air
Anemometer
Measures wind speed
79 terms
Remote sensing - Energy Sources for Remote sensing
What characteristics of light are resp…
What is the behavior of EMR?
What is the speed of light in a vacuum?
What is the general equation for waves?
The wave-like features
It may be emitted and absorbed one photon at a time, or it ca…
3 x 10^8 m/sec
C = vλ
What characteristics of light are resp…
The wave-like features
What is the behavior of EMR?
It may be emitted and absorbed one photon at a time, or it ca…
Remote Sensing
Remote Sensing
Look at "applications of remote sensor…
Sun-Synchronous Orbit (see image)
Louis Daguerre (1839)
Anything that collects information without direct contact bet…
Look at "applications of remote sensor data"
The satellite is always in the same relative position between…
Created Daguerreotype in
Remote Sensing
Anything that collects information without direct contact bet…
Look at "applications of remote sensor…
Look at "applications of remote sensor data"
10 terms
Remote sensing
Geography
Ground survey
Remote sensing
Need for Remote sensing
It is the study of earth focusing on its surface, the atmosph…
In geography the subject matter encompasses spatial distribut…
Remote - far away... Sensing - getting information ... Remote sensi…
Continuous monitoring of the earth has become very essential…
Geography
It is the study of earth focusing on its surface, the atmosph…
Ground survey
In geography the subject matter encompasses spatial distribut…
15 terms
Remote Sensing
Active Source & Passive Source
"The science of remote sensing consist…
Active sensors emit there own energy s…
(V) 400-700nm (R)
What are the two types of sensors commonly used in Remote Sen…
Define Remote Sensing
Differentiate between Active and Passive Sensors?
At what wavelength range is light visible?
Active Source & Passive Source
What are the two types of sensors commonly used in Remote Sen…
"The science of remote sensing consist…
Define Remote Sensing
63 terms
Remote Sensing
Radio Waves
Microwaves
Far Infrared Waves
Near Infrared Waves
-Penetrate Atmosphere... - >30cm... -Not great for remote sensing b…
-Some penetrate Atmosphere... -0.1-30cm... - Used to look at the ea…
-Terrestrially derived... -3.0-10,000um... -Thermal radiation
-Penetrates Atmosphere but high absorption by water... -0.7-3.0u…
Radio Waves
-Penetrate Atmosphere... - >30cm... -Not great for remote sensing b…
Microwaves
-Some penetrate Atmosphere... -0.1-30cm... - Used to look at the ea…
18 terms
Remote Sensing
geomatics
cartography
Global positioning systems
surveying
includes cartography, GIS, GPS, surveying, and photogrammetry
the art, science and technology of making maps
determination of ground locations using measurements from sat…
science of determination of accurate coordinates of terrestri…
geomatics
includes cartography, GIS, GPS, surveying, and photogrammetry
cartography
the art, science and technology of making maps
25 terms
Remote Sensing
A collection of data points with XYZ c…
In lidar, this return pulse represents…
Lidar systems calculate distance by re…
This is a measure of the return streng…
Point Cloud
Last Return
Return time
Intensity
A collection of data points with XYZ c…
Point Cloud
In lidar, this return pulse represents…
Last Return
Remote sensing
O2 absorption window
O3 absorption window
H2O absorption window
Co2 absorption window
Filters ultraviolet radiation below 0.1 micrometers
Eliminates ultraviolet radiation below 0.3 micrometers
Absorbs strongly around 6, then .6 and 2
15 micrometers and 2.5 to 4.5 thermal infrared
O2 absorption window
Filters ultraviolet radiation below 0.1 micrometers
O3 absorption window
Eliminates ultraviolet radiation below 0.3 micrometers
52 terms
remote sensing
X-band
C-band:
S-band
L-band
Used extensively on airborne systems for military reconnaissa…
On many airborne research systems (CCRS Convair-580 and NASA…
Used onboard the Russian ALMAZ satellite
American SEASAT and Japanese JERS-1 and ALOS satellites and N…
X-band
Used extensively on airborne systems for military reconnaissa…
C-band:
On many airborne research systems (CCRS Convair-580 and NASA…
110 terms
Remote Sensing
Energy from the sun is..
Energy
Conduction
Convection
-Radiate by atomic particles at source... -propagates through th…
The ability to do work. During work, energy is often transfer…
When one body transfers its kinetic energy to another by coll…
Kinetic energy of bodies is transferred from one place to ano…
Energy from the sun is..
-Radiate by atomic particles at source... -propagates through th…
Energy
The ability to do work. During work, energy is often transfer…
220 terms
Remote Sensing
Detector
What can a detector detect?
What kinds of scientists benefit from…
How does remote sensing measure spatia…
measures changes in intensity with wavelength
-physical properties of a material... -spatial variations... -tempo…
-atmospheric... -biologic... -oceanic... -geographic/geologic
X & Y (latitude and longitude), and Z (topographic location)
Detector
measures changes in intensity with wavelength
What can a detector detect?
-physical properties of a material... -spatial variations... -tempo…
121 terms
Remote Sensing
Remote Sensing
EM Spectrum
Analog to Digital
image
science and art of getting info about an object, area, phenom…
NIR = 0.7 to 1.3 um... Middle Infrared= 1.3-3 um... Thermal= 3-14 u…
hard copy aerial photograph (or something else) into a digita…
any pictorial representation
Remote Sensing
science and art of getting info about an object, area, phenom…
EM Spectrum
NIR = 0.7 to 1.3 um... Middle Infrared= 1.3-3 um... Thermal= 3-14 u…
240 terms
Remote Sensing
absorptance
absorption band
absorptivity
achromatic vision
A measure of the ability of a material to absorb EM energy at…
Wavelength interval within which electromagnetic radiation is…
Capacity of a material to absorb incident radiant energy
The perception by the human eye of changes in brightness, oft…
absorptance
A measure of the ability of a material to absorb EM energy at…
absorption band
Wavelength interval within which electromagnetic radiation is…
Remote Sensing
Active sensor
Passive sensor
Optical Imagery
Infrared Imagery
a device with a transmitter that sends out a signal, light wa…
a device that detects and responds to some type of input from…
includes a variety of imaging techniques that rely on illumin…
a method of improving visibility of objects in a dark environ…
Active sensor
a device with a transmitter that sends out a signal, light wa…
Passive sensor
a device that detects and responds to some type of input from…
18 terms
Remote Sensing
Remote Sensing:
Active Sensors:
Passive Sensors:
Optical Imagers:
The observation of the Earth from space using satellite imaging
Sensors that transmit their own radiation to an object and th…
A sensor that receives radiation reflected from a different s…
optical sensors detect solar radiation reflected or scattered…
Remote Sensing:
The observation of the Earth from space using satellite imaging
Active Sensors:
Sensors that transmit their own radiation to an object and th…
16 terms
Remote Sensing
Remote Sensing
Sensing objects
uses of remote sensing
measure what?
simple, fast, global coverage, frequent identification of obj…
measuring reflected and emitted energy well beyond the sensor…
carbon management, public health... energy management, aviation,…
you can see water flow changes, banks overflowing, changes in…
Remote Sensing
simple, fast, global coverage, frequent identification of obj…
Sensing objects
measuring reflected and emitted energy well beyond the sensor…
23 terms
Remote Sensing
Remote sensing
Wavelength
Visible light
Remote sensing
Art/science acquires info of phenomenon without direct contac…
Distance between 2 crests
.4-.7mm... 400-700 nm
Analyzes reflected/emitted EMR from an object
Remote sensing
Art/science acquires info of phenomenon without direct contac…
Wavelength
Distance between 2 crests
131 terms
Remote Sensing
tone in remote photos can describe
geometric characteristics linear, curv…
smooth, intermediate, rough-course, mo…
spatial arrangement of objects on grou…
band of electromagnetic energy recorded by the remote system…
shape
texture
pattern of object
tone in remote photos can describe
band of electromagnetic energy recorded by the remote system…
geometric characteristics linear, curv…
shape
24 terms
Remote Sensing
pushbroom sensor
most commonly collected type of aerial…
advantages of aerial imagery
hyperspectral data
aerial imagery that creates an image line by line
visible/near infrared with 3-4 bands
1. very high spatial resolution (<5cm)... 2. cheaper to collect…
- type of visible/infrared aerial data... - 20-400 bands that al…
pushbroom sensor
aerial imagery that creates an image line by line
most commonly collected type of aerial…
visible/near infrared with 3-4 bands
Remote Sensing
Remote sensing
Aerial photography
UAV
vertical photo
The process of collecting information related to the reflecte…
Taking photographs of objects on the ground from an airborne…
unmanned aerial vehicle. A reconnaissance aircraft that is pi…
an aerial photo in which the camera is looking directly down…
Remote sensing
The process of collecting information related to the reflecte…
Aerial photography
Taking photographs of objects on the ground from an airborne…
20 terms
Remote Sensing
Define remote sensing.
Benefits of remote sensing:
Remote sensing platforms:
passive remote sensing
- any technique that collects information without direct cont…
- simple... - fast... - global coverage (large area)... - frequent (mu…
- aerial (airplanes, helicopters, drones, balloons, pigeons)…
when the sensor relies on energy from the sun or earth
Define remote sensing.
- any technique that collects information without direct cont…
Benefits of remote sensing:
- simple... - fast... - global coverage (large area)... - frequent (mu…
67 terms
Remote Sensing
modern remote sensing
photgraphic... non-photographic... in situ
photographic remote sensing
non-photographic remote sensing
analysis/interpretation of an object/area using a device not…
what are 3 types of remote sensing?
-used on aireborn and human-occupied satellite platforms... -ult…
-digital scanners detect electromagnetic energy reflected or…
modern remote sensing
analysis/interpretation of an object/area using a device not…
photgraphic... non-photographic... in situ
what are 3 types of remote sensing?
68 terms
Remote Sensing
Remote Sensing
GIS
How is remote sensing used?
Remote Sensing Process
Remote Sensing is the science and art of obtaining informatio…
A system for capturing, storing, checking, integrating,... manip…
Environmental assessment and monitoring... Disaster assessment a…
Define the problem... If applicable form a hypothesis... Data Colle…
Remote Sensing
Remote Sensing is the science and art of obtaining informatio…
GIS
A system for capturing, storing, checking, integrating,... manip…
40 terms
Remote Sensing
Spectral Bands
Micrometer
Spectral Signature
Remote Sensing
-Continuous electromagnetic spectrum is divided into distinct…
A unit of length equal to one thousandth of a millimeter or o…
Reflected electromagnetic radiation across a series of specia…
The collection of environmental information indirectly
Spectral Bands
-Continuous electromagnetic spectrum is divided into distinct…
Micrometer
A unit of length equal to one thousandth of a millimeter or o…
12 terms
Remote Sensing
Active Sensors
Passive Sensors
Troposphere
Stratosphere
Provides their own source of energy to illuminate the objects…
Radiation that is emitted or reflected by the object or scene…
Starts at the earths surface and extends to 8-14.5 kilometers…
Starts just above the troposphere and extends to 50 kilometer…
Active Sensors
Provides their own source of energy to illuminate the objects…
Passive Sensors
Radiation that is emitted or reflected by the object or scene…
18 terms
remote sensing
Remote Sensing
Active Sensor
Passive Sensors
Optical Imagers
the observation of the earth from space using satellite imaging
sensors that transmit their own radiation to an object and th…
a sensor that receive radiation reflected from a different so…
optical sensors detect solar radiation reflected or scattered…
Remote Sensing
the observation of the earth from space using satellite imaging
Active Sensor
sensors that transmit their own radiation to an object and th…
28 terms
Remote Sensing
RADAR
LIDAR
TM
ETM+
Radio Detection and Ranging
Light Detection and Ranging
Thematic Mapper
Enhanced Thematic Mapper Plus
RADAR
Radio Detection and Ranging
LIDAR
Light Detection and Ranging
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