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

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==Argus applications==
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==Biogeomorphology of aquatic systemss==
  
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Successful use of [[video technology|video monitoring techniques]] in support of coastal management and engineering involves the quantification of relevant coastal state information from video data. Sophisticated, operational video analysis methods nowadays enable the quantification of:
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[[Image:zoninggeobiointeraction.jpg|thumb|right|250px| Fig.6 Illustrates how biota act as ecosystem engineers and influence sediment stability and morphology in the intertidal zone.]][[Biogeomorphology]] considers the interactions between the ecology and geomorphology of a system. Ecology is the study of relationships between the biota and their environment, and geomorphology examines landforms and how they are formed. Biogeomorphology can be studied in terrestrial as well as aquatic systems. Within aquatic systems biogeomorphological relationships can be found for both hard substrates (rocky shores / coral reefs) and soft substrates (muddy / sandy coastal sediments). Biota can alter geomorphology by creating hard substrates (e.g. coral reefs) or by modifying the stability or erodability of soft substrates.  Key species in the benthic communities of sediment shores can influence geomorphology by acting as '''biostabilizers''' or '''biodestabilizers''' of sediment. The impact of organisms on coastal morphology can be both dramatic (e.g. coral reefs, [[salt marsh|saltmarshes]], mussel beds) and more subtle by modifying rates of sediment [[erosion]] and accretion.
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# [[Shoreline]] evolution and beach width, to evaluate the potential for recreation or to assess the morphological impact of a storm event
 
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# [[Erosion|Erosional]] and accretional sediment volumes at the intertidal beach, for example to evaluate the morphological impact of coastal structures, to investigate seasonal fluctuations in beach dynamics and [[beach nourishment|beach nourishments]] or to study the behaviour of morphological features such as sand spits and tidal flats near a harbour entrance
 
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# [[Subtidal]] beach [[bathymetry]], to evaluate coastal safety, to assess the behaviour and performance of [[shore nourishment|shoreface nourishments]] or even to facilitate military operations
 
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# Wave run-up, to evaluate the stability of coastal structures such as [[seawall|seawalls]], harbour moles and [[revetment|revetments]]  
 
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# Coastal State Indicators with a high resolution in time through assimilation of model computations with Argus observations
 

Revision as of 18:35, 21 January 2008

Biogeomorphology of aquatic systemss

Fig.6 Illustrates how biota act as ecosystem engineers and influence sediment stability and morphology in the intertidal zone.
Biogeomorphology considers the interactions between the ecology and geomorphology of a system. Ecology is the study of relationships between the biota and their environment, and geomorphology examines landforms and how they are formed. Biogeomorphology can be studied in terrestrial as well as aquatic systems. Within aquatic systems biogeomorphological relationships can be found for both hard substrates (rocky shores / coral reefs) and soft substrates (muddy / sandy coastal sediments). Biota can alter geomorphology by creating hard substrates (e.g. coral reefs) or by modifying the stability or erodability of soft substrates. Key species in the benthic communities of sediment shores can influence geomorphology by acting as biostabilizers or biodestabilizers of sediment. The impact of organisms on coastal morphology can be both dramatic (e.g. coral reefs, saltmarshes, mussel beds) and more subtle by modifying rates of sediment erosion and accretion.
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