Abstract
A video monitoring system has been used in order to track the morphology of an estuary located in La Rabia, due to the high time-space resolution provided by this system. Moreover, the data collection infrastructure allows us to extract relevant information at a relatively low cost. The methodology used to make the image capture and its post-processing procedure, permitted the detection and monitoring of a new tidal channel appearance as well as its evolution in width until it achieved equilibrium. During the course towards this balance, we could observe the characteristic phenomena for this type of process such as incisional narrowing and increase in width.
Highlights
Estuaries are fresh water and salt water mixing zones that connect the continental limit with the coastal zones
Suffered strong anthropogenic pressures throughout its history due to the padding and insulation of Throughout much of the estuary, within the La Rabia estuary, the restoration policies carried much of its surface
Throughout much of the estuary,and within the LaofRabia estuary, the restoration policies carried out place for the study of the formation evolution tidal channels
Summary
Estuaries are fresh water and salt water mixing zones that connect the continental limit with the coastal zones The interaction between these two water bodies (fresh and salty) with such different properties, geomorphological characteristics and acting dynamics (tide, river flow, swell, etc.), generate highly productive ecosystems with a great variety of habitats that are relevant for the conservation of biodiversity, and the refuge of migratory birds and aquatic biota. In order to conserve these spaces, it is fundamental to improve the understanding of the origins and evolution of these environments [1,2,3] In this regard, tidal channel networks are one of the most important morphologic features, as they are the main route for the transportation of water, sediments and nutrients in intertidal and coastal zones [4,5]. They play an essential role in the functioning of estuarine ecosystems under the influence of the tide
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