Abstract This paper exposes how HIDROVIA S.A. (Inland Waterway Concession company) worked in the Middle Paraná River inland waterway “Santa Fe – Confluence” to maintain navigation channel without dredging works by means of four steps: frequent bathymetric surveys, study AIS vessels tracks, a special coordination logistic river with technical team and buoy tenders crew effective communication pl...

Over the last two centuries, rivers have been strongly regulated, inducing notable sediment starvation and flow reduction. This regulation has altered aquatic habitats, biocenosis ecosystem services. Gravel augmentation (GA) is increasingly promoted to restore bedload transport, rejuvenate bed sediments diversify riverine habitats. However, practical questions remain in terms of efficiency sust...

Sedimentological and architectural features of meandering subtidal channels are relatively unexplored, their deposits commonly investigated based on facies models set up for intertidal channels. The Venice Lagoon (northern Adriatic Sea, Italy) is affected by a micro-tidal regime hosts dense network active buried tidal It represents an excellent natural laboratory to improve the current knowledg...

[1] Transient storage processes are important to biogeochemical cycling in many streams and depend greatly upon stream fluvial structure. Fluvial geomorphic structure establishes patterns of surface water and subsurface head distributions, often driving hyporheic exchange through steps, riffles, and meanders, and controls the potential for in-channel dead zone storage in side pools, eddies, etc...

In this study, the distribution of channel-bed sediment facies in the lowermost Mississippi River is analysed using multibeam data, complemented by sidescan sonar and compressed high-intensity radar pulse seismic data, as well as grab and core samples of bed material. The channel bed is composed of a discontinuous layer of alluvial sediment and a relict substratum that is exposed on the channel...

Geometric modeling of river channel topography is a method design synthesis wherein specific 2D geometric elements topography, such as the bed profile, cross sectional shape, and planform contours, are expressed mathematically in isolation then combined to produce 3D heightmap. We utilized framework synthesize terrains that reveal flow-form-function linkages investigate what roles variability r...

Abstract A substantial body of research has addressed the equilibrium cross‐sectional geometry straight noncohesive channels, along with bends having fixed outer banks. However, development a characteristic cross‐section during active migration been confounded by inaccurate treatment bank erosion processes. This analysis characterizes steady‐state migrating and associated rate for highly concep...

We examine how historic flooding in 2011 affected the geomorphic adjustments created by dam regulation along the approximately 120 km free flowing reach of the Upper Missouri River bounded upstream by the Garrison Dam (1953) and downstream by Lake Oahe Reservoir (1959) near the City of Bismarck, ND, USA. The largest flood since dam regulation occurred in 2011. Flood releases from the Garrison D...

Rhythmic sequences of steps and pools in steep mountain streams have captured the attention of numerous workers, but whether periodicities exist in the occurrence of step-pools has not been investigated in a comprehensive way, and the implications for such periodicities have not been explored. Spectral analysis was applied to bed elevation data from streams in the Santa Monica Mountains of sout...