Remote sensing - Revision history

Jmdonev: 1 revision imported

2019-01-04T18:14:52Z

1 revision imported

← Older revision	Revision as of 18:14, 4 January 2019
(No difference)

2dev>Jmdonev at 21:06, 15 November 2018

2018-11-15T21:06:59Z

← Older revision		Revision as of 21:06, 15 November 2018
Line 1:		Line 1:
	[[Category:Done ~~2015~~-10~~-15~~]]		[[Category:Done 2018-12-10]]
	<onlyinclude>'''Remote sensing''' is the ~~science~~ of measuring properties of an object without physical contact with that object.</onlyinclude><ref name=Ref1>Natural Resources Canada (2011). "Remote Sensing". [Online] Available: http://www.nrcan.gc.ca/earth-sciences/geography-boundary/remote-sensing/11691</ref> Remote sensing has a variety of applications in many different industries ~~because it is~~ an information collection tool. In the [[energy industry]], remote sensing can help find ~~good~~ places to ~~put~~ various generation stations ~~like~~ [[hydropower]], [[solar power]] and [[wind power]]. ~~This could include~~ satellite ~~measurements~~.		[[Category: Rudi grade Ashley edit]]
			<onlyinclude>'''Remote sensing''' is the process of measuring properties of an object without physical contact with that object.</onlyinclude><ref name=Ref1>Natural Resources Canada (2011). "Remote Sensing". [Online] Available: http://www.nrcan.gc.ca/earth-sciences/geography-boundary/remote-sensing/11691</ref> Remote sensing has a variety of applications in many different industries as an information collection tool. In the [[energy industry]], remote sensing can help find the best places to build infrastructure, such as various [[power plant\|generation stations]] for [[hydropower]], [[solar power]] and [[wind power]]. Remote sensing equipment ranges from small instrumentation (e.g. wildlife cameras) to large instrumentation (e.g. [[artificial satellite]]s).

	==Active and Passive Sensors==		==Active and Passive Sensors==
			Sensors measure electromagnetic reflectance (how much light reflects off a surface) to collect data about objects. These sensors can be divided into either passive or active sensors. The type of sensor used depends on the desired data to be collected.

	Passive sensors ~~are sensors that~~ measure existing light levels.<ref name=Ref2>P.R. Baumann (2010). "Introduction to Remote Sensing". [Online] Available: http://www.oneonta.edu/faculty/baumanpr/geosat2/RS-Introduction/RS-Introduction.html</ref> A digital camera would be considered a passive sensor as would a thermal or infrared ~~camera~~. ~~Passive~~ sensors ~~are limited to operating~~ in environments with measurable levels of light. If light levels are too low, the sensors ~~aren’t able to~~ collect ~~any~~ information.		Passive sensors measure existing light levels.<ref name=Ref2>P.R. Baumann (2010). "Introduction to Remote Sensing". [Online] Available: http://www.oneonta.edu/faculty/baumanpr/geosat2/RS-Introduction/RS-Introduction.html</ref> A normal digital camera recording visible light would be considered a passive sensor, as would a thermal or infrared cameras. These passive sensors can only operate in environments with measurable levels of light. If light levels are too low, the sensors cannot collect information.
	Active sensors send out a signal that illuminates the surface and measure the properties of the ~~return~~ signal.<ref name = Ref2/> An example of an active sensor would be Light Detection and Ranging (LiDAR). LiDAR sends out short laser bursts and measures the time it takes for the signal to return.<ref name=Ref3>NOAA (2013). "LiDAR - Light Detection and Ranging - is a remote sensing methods used to examine the surface of the Earth" [Online] Available: http://oceanservice.noaa.gov/facts/lidar.html</ref> LiDAR is used to measure the distance of a surface from the sensor. Active sensors require more energy than passive sensors because they ~~send out a~~ signal to ~~illuminate the surface~~.<ref name = Ref2/> ~~However,~~ they ~~are not limited by existing~~ light ~~levels~~.
			Active sensors send out a signal that illuminates the surface and measure the properties of the returning signal.<ref name = Ref2/> An example of an active sensor would be Light Detection and Ranging (LiDAR). LiDAR sends out short laser bursts and measures the time it takes for the signal to return.<ref name=Ref3>NOAA (2013). "LiDAR - Light Detection and Ranging - is a remote sensing methods used to examine the surface of the Earth" [Online] Available: http://oceanservice.noaa.gov/facts/lidar.html</ref> LiDAR is used to measure the distance of a surface from the sensor. Active sensors require more energy than passive sensors because they provide their own signal to measure.<ref name = Ref2/> The advantage of an active sensor is greater operational flexibility; they can operate in dimmer light conditions.

	[[File:Remote_Sensing_Illustration.jpg\|780px\|thumb\|\|center\|Figure 1. A diagram showing the difference between active and passive sensing.<ref>Wikimedia Commons. (October 4, 2015). ''Remote Sensing'' [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/6/61/Remote_Sensing_Illustration.jpg</ref>]]		[[File:Remote_Sensing_Illustration.jpg\|780px\|thumb\|\|center\|Figure 1. A diagram showing the difference between active and passive sensing.<ref>Wikimedia Commons. (October 4, 2015). ''Remote Sensing'' [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/6/61/Remote_Sensing_Illustration.jpg</ref>]]

	==Platforms==		==Platforms==
	Sensors are attached to various types of platforms.<ref name=~~Ref4~~>~~Q.K. Hassan~~, "~~ENGO 435 Lecture Notes~~", ~~Geomatics Engineering~~, ~~University of Calgary, 2012~~.</ref> A platform is the structure that carries the sensor itself. Platforms can be stationary or designed to move to allow the sensor to collect more data. Platforms are divided into three categories:		Sensors are attached to various types of platforms.<ref name=Ref22>NASA, "What are passive and active sensors?", (Sept.22, 2018) Available from: https://www.nasa.gov/directorates/heo/scan/communications/outreach/funfacts/txt_passive_active.html.</ref> A platform is the structure that carries the sensor itself. Platforms can be stationary or designed to move to allow the sensor to collect more data. Platforms are divided into three categories:
	*Ground-based - Ground-based sensors are mounted on a platform that stays in contact with the ground.		*Ground-based - Ground-based sensors are mounted on a platform that stays in contact with the ground.
	*Airborne - Airborne sensors are generally mounted on planes or, in some cases, on balloons		*Airborne - Airborne sensors are generally mounted on planes or, in some cases, on balloons
Line 19:		Line 22:
	Active sensors can be used for [[wind resource measurement]] or to create models of local elevation.<ref name=Ref3/><ref name = Ref6>I. Karagali, M. Badger, A.N. Hahmann, A. Pena, C.B. Hasager and A.M. Sempreviva, "Spatial and temporal variability of winds in the Northern European seas," ''Renew Energy'', vol. 57, pp. 200-210, Sept. 2013</ref> Wind measurements can be used to locate potential sites for [[offshore wind turbine]]s<ref name=Ref6/> Elevation models are useful for planning hydroelectric plants or areas that have fewer obstructions for wind turbines or electricity transmission lines.<ref name=Ref6/><ref name=Ref7>Z. Xu, F. Yang, Y. Huang, Z. Wang, Y. Liu (2008) "LiDAR applications in the electric power industry" [Online] Available: http://www.isprs.org/proceedings/XXXVII/congress/4_pdf/26.pdf</ref><ref name=Ref8>Merrett Survey Partnership (2009). "Hydro Electricity - Mini hydro Schemes" [Online] Available: http://www.lidar.co.uk/Hydro-Electricity.htm</ref>		Active sensors can be used for [[wind resource measurement]] or to create models of local elevation.<ref name=Ref3/><ref name = Ref6>I. Karagali, M. Badger, A.N. Hahmann, A. Pena, C.B. Hasager and A.M. Sempreviva, "Spatial and temporal variability of winds in the Northern European seas," ''Renew Energy'', vol. 57, pp. 200-210, Sept. 2013</ref> Wind measurements can be used to locate potential sites for [[offshore wind turbine]]s<ref name=Ref6/> Elevation models are useful for planning hydroelectric plants or areas that have fewer obstructions for wind turbines or electricity transmission lines.<ref name=Ref6/><ref name=Ref7>Z. Xu, F. Yang, Y. Huang, Z. Wang, Y. Liu (2008) "LiDAR applications in the electric power industry" [Online] Available: http://www.isprs.org/proceedings/XXXVII/congress/4_pdf/26.pdf</ref><ref name=Ref8>Merrett Survey Partnership (2009). "Hydro Electricity - Mini hydro Schemes" [Online] Available: http://www.lidar.co.uk/Hydro-Electricity.htm</ref>

	Passive, spaceborne instruments provide images of the surface that are used to identify areas where crude oil or natural gas may be present.<ref name = ~~Ref4~~>BP (2013). "The science of searching". [Online] Available: http://www.bp.com/en/global/corporate/about-bp/what-we-do/finding-oil-and-gas/the-science-of-searching.html</ref> They can also be used to identify areas with the least cloud cover; these areas are better-suited for solar panels.<ref name=Ref5>Green Power Labs (n.d.) "Resource Assessment". [Online] Available: http://www.greenpowerlabs.com/services_ra.html</ref>		Passive, spaceborne instruments provide images of the surface that are used to identify areas where [[crude oil]] or [[natural gas]] may be present.<ref name = Ref22/>BP (2013). "The science of searching". [Online] Available: http://www.bp.com/en/global/corporate/about-bp/what-we-do/finding-oil-and-gas/the-science-of-searching.html</ref> They can also be used to identify areas with the least cloud cover; these areas are better-suited for solar panels.<ref name=Ref5>Green Power Labs (n.d.) "Resource Assessment". [Online] Available: http://www.greenpowerlabs.com/services_ra.html</ref>

			==For Further Reading==
			*[[Satellite]]
			*[[Solar power]]
			*[[Wind power]]
			*[[Hydropower]]
			*[[Energy]]
			*Or explore a [[Special:Random\|random page]]

	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams: 1 revision imported

2015-11-13T01:47:31Z

1 revision imported

← Older revision	Revision as of 01:47, 13 November 2015
(No difference)

Jmdonev at 03:35, 6 October 2015

2015-10-06T03:35:33Z

← Older revision		Revision as of 03:35, 6 October 2015
Line 1:		Line 1:
	[[Category:Done 2015-06-~~01]]~~		[[Category:Done 2015-10-15]]
	~~[[Category: Check Images~~]]
	<onlyinclude>'''Remote sensing''' is the science of measuring properties of an object without physical contact with that object.</onlyinclude><ref name=Ref1>Natural Resources Canada (2011). "Remote Sensing". [Online] Available: http://www.nrcan.gc.ca/earth-sciences/geography-boundary/remote-sensing/11691</ref> Remote sensing has a variety of applications in many different industries because it is an information collection tool. In the [[energy industry]], remote sensing can help find good places to put various generation stations like [[hydropower]], [[solar power]] and [[wind power]]. This could include satellite measurements.		<onlyinclude>'''Remote sensing''' is the science of measuring properties of an object without physical contact with that object.</onlyinclude><ref name=Ref1>Natural Resources Canada (2011). "Remote Sensing". [Online] Available: http://www.nrcan.gc.ca/earth-sciences/geography-boundary/remote-sensing/11691</ref> Remote sensing has a variety of applications in many different industries because it is an information collection tool. In the [[energy industry]], remote sensing can help find good places to put various generation stations like [[hydropower]], [[solar power]] and [[wind power]]. This could include satellite measurements.

	==Active and Passive Sensors==		==Active and Passive Sensors==
	[[File:RemoteSensingConcepts.jpg\|400px\|thumbnail\|right\|The difference between active and passive '''satellite''' sensors<ref name=RefImg>M.A. Ashraf, M.J. Mahh, I. Yusoff (2011) "Introduction to Remote Sensing of Biomass" [Online] Available: http://www.intechopen.com/books/biomass-and-remote-sensing-of-biomass/introduction-to-remote-sensing-of-biomass</ref>]]
	Passive sensors are sensors that measure existing light levels.<ref name=Ref2>P.R. Baumann (2010). "Introduction to Remote Sensing". [Online] Available: http://www.oneonta.edu/faculty/baumanpr/geosat2/RS-Introduction/RS-Introduction.html</ref> A digital camera would be considered a passive sensor as would a thermal or infrared camera. Passive sensors are limited to operating in environments with measurable levels of light. If light levels are too low, the sensors aren’t able to collect any information.		Passive sensors are sensors that measure existing light levels.<ref name=Ref2>P.R. Baumann (2010). "Introduction to Remote Sensing". [Online] Available: http://www.oneonta.edu/faculty/baumanpr/geosat2/RS-Introduction/RS-Introduction.html</ref> A digital camera would be considered a passive sensor as would a thermal or infrared camera. Passive sensors are limited to operating in environments with measurable levels of light. If light levels are too low, the sensors aren’t able to collect any information.
	Active sensors send out a signal that illuminates the surface and measure the properties of the return signal.<ref name = Ref2/> An example of an active sensor would be Light Detection and Ranging (LiDAR). LiDAR sends out short laser bursts and measures the time it takes for the signal to return.<ref name=Ref3>NOAA (2013). "LiDAR - Light Detection and Ranging - is a remote sensing methods used to examine the surface of the Earth" [Online] Available: http://oceanservice.noaa.gov/facts/lidar.html</ref> LiDAR is used to measure the distance of a surface from the sensor. Active sensors require more energy than passive sensors because they send out a signal to illuminate the surface.<ref name = Ref2/> However, they are not limited by existing light levels.		Active sensors send out a signal that illuminates the surface and measure the properties of the return signal.<ref name = Ref2/> An example of an active sensor would be Light Detection and Ranging (LiDAR). LiDAR sends out short laser bursts and measures the time it takes for the signal to return.<ref name=Ref3>NOAA (2013). "LiDAR - Light Detection and Ranging - is a remote sensing methods used to examine the surface of the Earth" [Online] Available: http://oceanservice.noaa.gov/facts/lidar.html</ref> LiDAR is used to measure the distance of a surface from the sensor. Active sensors require more energy than passive sensors because they send out a signal to illuminate the surface.<ref name = Ref2/> However, they are not limited by existing light levels.

			[[File:Remote_Sensing_Illustration.jpg\|780px\|thumb\|\|center\|Figure 1. A diagram showing the difference between active and passive sensing.<ref>Wikimedia Commons. (October 4, 2015). ''Remote Sensing'' [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/6/61/Remote_Sensing_Illustration.jpg</ref>]]

	==Platforms==		==Platforms==
Line 17:		Line 18:
	Remote sensing has a variety of information collection applications in the energy industry.		Remote sensing has a variety of information collection applications in the energy industry.
	Active sensors can be used for [[wind resource measurement]] or to create models of local elevation.<ref name=Ref3/><ref name = Ref6>I. Karagali, M. Badger, A.N. Hahmann, A. Pena, C.B. Hasager and A.M. Sempreviva, "Spatial and temporal variability of winds in the Northern European seas," ''Renew Energy'', vol. 57, pp. 200-210, Sept. 2013</ref> Wind measurements can be used to locate potential sites for [[offshore wind turbine]]s<ref name=Ref6/> Elevation models are useful for planning hydroelectric plants or areas that have fewer obstructions for wind turbines or electricity transmission lines.<ref name=Ref6/><ref name=Ref7>Z. Xu, F. Yang, Y. Huang, Z. Wang, Y. Liu (2008) "LiDAR applications in the electric power industry" [Online] Available: http://www.isprs.org/proceedings/XXXVII/congress/4_pdf/26.pdf</ref><ref name=Ref8>Merrett Survey Partnership (2009). "Hydro Electricity - Mini hydro Schemes" [Online] Available: http://www.lidar.co.uk/Hydro-Electricity.htm</ref>		Active sensors can be used for [[wind resource measurement]] or to create models of local elevation.<ref name=Ref3/><ref name = Ref6>I. Karagali, M. Badger, A.N. Hahmann, A. Pena, C.B. Hasager and A.M. Sempreviva, "Spatial and temporal variability of winds in the Northern European seas," ''Renew Energy'', vol. 57, pp. 200-210, Sept. 2013</ref> Wind measurements can be used to locate potential sites for [[offshore wind turbine]]s<ref name=Ref6/> Elevation models are useful for planning hydroelectric plants or areas that have fewer obstructions for wind turbines or electricity transmission lines.<ref name=Ref6/><ref name=Ref7>Z. Xu, F. Yang, Y. Huang, Z. Wang, Y. Liu (2008) "LiDAR applications in the electric power industry" [Online] Available: http://www.isprs.org/proceedings/XXXVII/congress/4_pdf/26.pdf</ref><ref name=Ref8>Merrett Survey Partnership (2009). "Hydro Electricity - Mini hydro Schemes" [Online] Available: http://www.lidar.co.uk/Hydro-Electricity.htm</ref>
	[[File:LiDARProduct.jpg\|400px\|thumbnail\|center\|Example of an elevation model built from active sensor data (LiDAR)<ref name=RefLidar>Aerogeo (2012). "AeroGeo Expands LiDAR products & services" [Online] Available: http://www.aerogeo.com/2012/03/aerogeo-expands-lidar-products-and-services/</ref>]]
	Passive, spaceborne instruments provide images of the surface that are used to identify areas where crude oil or natural gas may be present.<ref name = Ref4>BP (2013). "The science of searching". [Online] Available: http://www.bp.com/en/global/corporate/about-bp/what-we-do/finding-oil-and-gas/the-science-of-searching.html</ref> They can also be used to identify areas with the least cloud cover; these areas are better-suited for solar panels.<ref name=Ref5>Green Power Labs (n.d.) "Resource Assessment". [Online] Available: http://www.greenpowerlabs.com/services_ra.html</ref>		Passive, spaceborne instruments provide images of the surface that are used to identify areas where crude oil or natural gas may be present.<ref name = Ref4>BP (2013). "The science of searching". [Online] Available: http://www.bp.com/en/global/corporate/about-bp/what-we-do/finding-oil-and-gas/the-science-of-searching.html</ref> They can also be used to identify areas with the least cloud cover; these areas are better-suited for solar panels.<ref name=Ref5>Green Power Labs (n.d.) "Resource Assessment". [Online] Available: http://www.greenpowerlabs.com/services_ra.html</ref>

J.williams: 1 revision imported

2015-08-26T21:31:36Z

1 revision imported

← Older revision	Revision as of 21:31, 26 August 2015
(No difference)

J.williams at 16:58, 12 August 2015

2015-08-12T16:58:51Z

New page

[[Category:Done 2015-06-01]]
[[Category: Check Images]]
<onlyinclude>'''Remote sensing''' is the science of measuring properties of an object without physical contact with that object.</onlyinclude><ref name=Ref1>Natural Resources Canada (2011). "Remote Sensing". [Online] Available: http://www.nrcan.gc.ca/earth-sciences/geography-boundary/remote-sensing/11691</ref> Remote sensing has a variety of applications in many different industries because it is an information collection tool. In the [[energy industry]], remote sensing can help find good places to put various generation stations like [[hydropower]], [[solar power]] and [[wind power]]. This could include satellite measurements.

==Active and Passive Sensors==
[[File:RemoteSensingConcepts.jpg|400px|thumbnail|right|The difference between active and passive '''satellite''' sensors<ref name=RefImg>M.A. Ashraf, M.J. Mahh, I. Yusoff (2011) "Introduction to Remote Sensing of Biomass" [Online] Available: http://www.intechopen.com/books/biomass-and-remote-sensing-of-biomass/introduction-to-remote-sensing-of-biomass</ref>]]
Passive sensors are sensors that measure existing light levels.<ref name=Ref2>P.R. Baumann (2010). "Introduction to Remote Sensing". [Online] Available: http://www.oneonta.edu/faculty/baumanpr/geosat2/RS-Introduction/RS-Introduction.html</ref> A digital camera would be considered a passive sensor as would a thermal or infrared camera. Passive sensors are limited to operating in environments with measurable levels of light. If light levels are too low, the sensors aren’t able to collect any information.
Active sensors send out a signal that illuminates the surface and measure the properties of the return signal.<ref name = Ref2/> An example of an active sensor would be Light Detection and Ranging (LiDAR). LiDAR sends out short laser bursts and measures the time it takes for the signal to return.<ref name=Ref3>NOAA (2013). "LiDAR - Light Detection and Ranging - is a remote sensing methods used to examine the surface of the Earth" [Online] Available: http://oceanservice.noaa.gov/facts/lidar.html</ref> LiDAR is used to measure the distance of a surface from the sensor. Active sensors require more energy than passive sensors because they send out a signal to illuminate the surface.<ref name = Ref2/> However, they are not limited by existing light levels.

==Platforms==
Sensors are attached to various types of platforms.<ref name=Ref4>Q.K. Hassan, "ENGO 435 Lecture Notes", Geomatics Engineering, University of Calgary, 2012.</ref> A platform is the structure that carries the sensor itself. Platforms can be stationary or designed to move to allow the sensor to collect more data. Platforms are divided into three categories:
*Ground-based - Ground-based sensors are mounted on a platform that stays in contact with the ground.
*Airborne - Airborne sensors are generally mounted on planes or, in some cases, on balloons
*Spaceborne - Spaceborne sensors are mounted on satellites.

==Applications in Energy==
Remote sensing has a variety of information collection applications in the energy industry.
Active sensors can be used for [[wind resource measurement]] or to create models of local elevation.<ref name=Ref3/><ref name = Ref6>I. Karagali, M. Badger, A.N. Hahmann, A. Pena, C.B. Hasager and A.M. Sempreviva, "Spatial and temporal variability of winds in the Northern European seas," ''Renew Energy'', vol. 57, pp. 200-210, Sept. 2013</ref> Wind measurements can be used to locate potential sites for [[offshore wind turbine]]s<ref name=Ref6/> Elevation models are useful for planning hydroelectric plants or areas that have fewer obstructions for wind turbines or electricity transmission lines.<ref name=Ref6/><ref name=Ref7>Z. Xu, F. Yang, Y. Huang, Z. Wang, Y. Liu (2008) "LiDAR applications in the electric power industry" [Online] Available: http://www.isprs.org/proceedings/XXXVII/congress/4_pdf/26.pdf</ref><ref name=Ref8>Merrett Survey Partnership (2009). "Hydro Electricity - Mini hydro Schemes" [Online] Available: http://www.lidar.co.uk/Hydro-Electricity.htm</ref>
[[File:LiDARProduct.jpg|400px|thumbnail|center|Example of an elevation model built from active sensor data (LiDAR)<ref name=RefLidar>Aerogeo (2012). "AeroGeo Expands LiDAR products & services" [Online] Available: http://www.aerogeo.com/2012/03/aerogeo-expands-lidar-products-and-services/</ref>]]
Passive, spaceborne instruments provide images of the surface that are used to identify areas where crude oil or natural gas may be present.<ref name = Ref4>BP (2013). "The science of searching". [Online] Available: http://www.bp.com/en/global/corporate/about-bp/what-we-do/finding-oil-and-gas/the-science-of-searching.html</ref> They can also be used to identify areas with the least cloud cover; these areas are better-suited for solar panels.<ref name=Ref5>Green Power Labs (n.d.) "Resource Assessment". [Online] Available: http://www.greenpowerlabs.com/services_ra.html</ref>

==References==
{{reflist}}
[[Category:Uploaded]]