LiDAR-derived slopes for headwater channel network analysis. (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• LiDAR-derived slopes for headwater channel network analysis. (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.catena.2008.09.012 (literal)

Alternative label

• Vianello A.; Cavalli M.; Tarolli P. (2009)
  LiDAR-derived slopes for headwater channel network analysis.
  in Catena (Cremling.)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Vianello A.; Cavalli M.; Tarolli P. (literal)

Pagina inizio

• 97 (literal)

Pagina fine

• 106 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.sciencedirect.com/science/article/pii/S0341816208001501 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 76 (literal)

Rivista

• Catena (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 10 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 2 (literal)

Note

• Scopus (literal)
• Google Scholar (literal)
• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Alessandro Vianello, Paolo Tarolli: Department of Land and Agroforest Environments, University of Padova, Agripolis, viale dell'Università 16, 35020 Legnaro (PD), Italy; Marco Cavalli: CNR-IRPI, Corso Stati Uniti 4, 35127 Padova, Italy (literal)

Titolo

• LiDAR-derived slopes for headwater channel network analysis. (literal)

Abstract

• Slope is one of the most important distinguishing features for channel morphology. Variations in the computation of slope from a digital elevation model can affect a wide range of hydrogeomorphically derived applications. We compare different methods for computing channel slope using LiDAR-derived digital terrain models (DTMs) with varying resolutions. We chose a headwater basin of the Eastern Italian Alps, characterized by a dense ephemeral colluvial network and a main alluvial channel as our study area. The identified alluvial morphologies are characteristic of steep mountain streams, namely, cascades and step pools. Field surveys were carried out along the main channel and in some small tributaries. Results indicate that a single method for slope calculation cannot estimate channel slope at the hydrographic network scale. The differential geometry approach for slope calculation tends to overestimate field-surveyed channel slope values for all the DTM resolutions (1, 2, 5 m). When a trigonometric approach for slope calculation is applied, 2 and 5 m DTM resolutions give more consistent results. Nevertheless, a reliable channel slope can be derived from a DTM with an appropriate resolution by choosing a suitable method only after considering the channel width. (literal)

Prodotto di

• Frane e altri movimenti in massa: cause, dinamiche ed effetti sull’ambiente (TA.P05.005.002) (Modulo)
• Istituto di ricerca per la protezione idrogeologica (IRPI) (Istituto)

Autore CNR

• MARCO CAVALLI (Unità di personale interno)

Insieme di parole chiave

• Keywords of "LiDAR-derived slopes for headwater channel network analysis." (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto di ricerca per la protezione idrogeologica (IRPI) (Istituto)
• Frane e altri movimenti in massa: cause, dinamiche ed effetti sull’ambiente (TA.P05.005.002) (Modulo)

Autore CNR di

• MARCO CAVALLI (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Catena (Rivista)

Insieme di parole chiave di

• Keywords of "LiDAR-derived slopes for headwater channel network analysis." (Insieme di parole chiave)