Survey and Classification of Large Woody Debris (LWD) in Streams Using Generated Low-Cost Geomatic Products
AbstractWater authorities are required to have a survey of large woody debris (LWD) in river channels and to manage this aspect of the stream habitat, making decisions on removing, positioning or leaving LWD in a natural state. The main objective of this study is to develop a new methodology that assists in decision making for sustainable management of river channels by using generated low-cost, geomatic products to detect LWD. The use of low-cost photogrammetry based on the use of economical, conventional, non-metric digital cameras mounted on low-cost aircrafts, together with the use of the latest computational vision techniques and open-source geomatic tools, provides useful geomatic products. The proposed methodology, compared with conventional photogrammetry or other traditional methods, led to a cost savings of up to 45%. This work presents several contributions for the area of free and open source software related to Geographic Information System (FOSSGIS) applications to LWD management in streams, while developing a QGIS  plugin that characterizes the risk from the automatic calculation of geometrical parameters. View Full-Text
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Ortega-Terol, D.; Moreno, M.A.; Hernández-López, D.; Rodríguez-Gonzálvez, P. Survey and Classification of Large Woody Debris (LWD) in Streams Using Generated Low-Cost Geomatic Products. Remote Sens. 2014, 6, 11770-11790.
Ortega-Terol D, Moreno MA, Hernández-López D, Rodríguez-Gonzálvez P. Survey and Classification of Large Woody Debris (LWD) in Streams Using Generated Low-Cost Geomatic Products. Remote Sensing. 2014; 6(12):11770-11790.Chicago/Turabian Style
Ortega-Terol, Damian; Moreno, Miguel A.; Hernández-López, David; Rodríguez-Gonzálvez, Pablo. 2014. "Survey and Classification of Large Woody Debris (LWD) in Streams Using Generated Low-Cost Geomatic Products." Remote Sens. 6, no. 12: 11770-11790.