Difference between revisions of "Template:This weeks featured article"

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'''Mariculture
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'''Use of Lidar for coastal habitat mapping
  
 
[[Image:fish_farming.jpg|thumb|right|250px|'''Figure 3: Salmon farm (www.dfo-mpo.gc.ca 2008'''<ref>http://www.dfo-mpo.gc.ca/science/Story/pacific/better_mngmnt_e.htm, 02/29/08</ref>)]]
 
[[Image:fish_farming.jpg|thumb|right|250px|'''Figure 3: Salmon farm (www.dfo-mpo.gc.ca 2008'''<ref>http://www.dfo-mpo.gc.ca/science/Story/pacific/better_mngmnt_e.htm, 02/29/08</ref>)]]
 
==Definition==
 
==Definition==
Generally it is aquaculture in marine environments.
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This article describes how Lidar (Laser or Light Detection and Ranging) can be used to collect data about coastal habitats. The article gives an introduction of the measurement principle and also explains how to plan for a Lidar-survey. More information about the conversion of collected data and the output of Lidar can be found in the article Data processing and output of Lidar.
If one takes a closer look there are different definitions. Some limit mariculture to the raising of marine plants and animals in the ocean itself (EEA, 2008<ref>European Environmental agency; www.glossary.eea.europa.eu/EEAGlossary/M/mariculture, 01/28/08</ref>).
 
Others also include species from brackish water and include culture methods that take place in salty and brackish water that is not situated in the ocean.  
 
  
  
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==Introduction==
  
Mariculture includes a wide range of species and culture methods. It is growing fast on a global scale . This is due to the fact that many fish stocks are overfished and catches are declining . At the same time the world population is rising and with it the need for dietary protein. The expansion of mariculture can reduce pressure on wild fish, shrimps and molluscs
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Lidar (Laser Induced Detection And Ranging ou LIght Detection And Ranging) is an active [[remote sensing]]
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[[image:lidar_fig_01.jpg|thumb|700px|right|Figure 2:Left panel from Banic & Cunningham (1998), right panel from Guenther et al. (2000)]]
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technique using light emission. Part of the light is diffused or absorbed by the environment and the other part is backscattered in the direction of the source of radiation. The time difference...

Revision as of 15:38, 16 December 2010

Use of Lidar for coastal habitat mapping

Figure 3: Salmon farm (www.dfo-mpo.gc.ca 2008[1])

Definition

This article describes how Lidar (Laser or Light Detection and Ranging) can be used to collect data about coastal habitats. The article gives an introduction of the measurement principle and also explains how to plan for a Lidar-survey. More information about the conversion of collected data and the output of Lidar can be found in the article Data processing and output of Lidar.


Introduction

Lidar (Laser Induced Detection And Ranging ou LIght Detection And Ranging) is an active remote sensing

Figure 2:Left panel from Banic & Cunningham (1998), right panel from Guenther et al. (2000)
technique using light emission. Part of the light is diffused or absorbed by the environment and the other part is backscattered in the direction of the source of radiation. The time difference...