CDW photogrammetry of low relief fluvial features : accuracy and implications for reach-scale sediment budgeting

Technical and software bulletin 1998

Auteurs :
HERITAGE, G.L.
FULLER, I.C.
CHARLTON, M.E.
BREWER, P.A.
PASSMORE, D.P.
HARDISTY, J.

Description :
This study details the levels of accuracy that can be achieved using the RolleiMetric Close-range Digital Workstation (CDW) photogrammetric survey technique on a variety of low relief fluvial geomorphic features (lateral, point and mid-channel bars). Guidelines are provided on field technique designed to minimize errors in the mapping of a terrain surface and to determine the necessary minimum target density for a given level of accuracy. The technique may then be incorporated into a revised methodology for sediment budgeting to provide a more accurate estimate of sediment flux rates that can be estimated on an event basis following repeat photogrammetry.


Type de document :
Article de monographie

Source :
Earth surface processes and landforms, issn : 0197-9337, 1998, vol. 23, n°. 13, p. 1219-1233, Collation : Illustration, Références bibliographiques : 15 ref.

Date :
1998

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley