Impacts of river engineering on river channel behaviour : implications for managing downstream flood risk (2020)
Journal Article
flood risk. Water, 12(5), https://doi.org/10.3390/w12051355

Although knowledge of sediment transport has improved over the last 25 years, our understanding of bedload transfer and sediment delivery is still based on a limited set of observations or on models that make assumptions on hydraulic and sediment tra... Read More about Impacts of river engineering on river channel behaviour : implications for managing downstream flood risk.

Impacts of river engineering on river channel behaviour : implications for managing downstream flood risk (2020)
Journal Article
Heritage, G., & Entwistle, N. (2020). Impacts of river engineering on river channel behaviour : implications for managing downstream flood risk. Water, 12(5), 1355. https://doi.org/10.3390/w12051355

Although knowledge of sediment transport has improved over the last 25 years, our understanding of bedload transfer and sediment delivery is still based on a limited set of observations or on models that make assumptions on hydraulic and sediment tra... Read More about Impacts of river engineering on river channel behaviour : implications for managing downstream flood risk.

Evidence of non-contiguous flood driven coarse sediment transfer and implications for sediment management (2019)
Presentation / Conference
Heritage, G., Entwistle, N., & Milan, D. (2019, September). Evidence of non-contiguous flood driven coarse sediment transfer and implications for sediment management. Presented at 38th IAHR World Congress, Panama City, Panama

We investigate gravel redistribution and morphological response of three headwater streams following the Storm
Desmond floods of December 2015. Reactive management of the watercourses following the flooding
concentrated on removal of gravel and cle... Read More about Evidence of non-contiguous flood driven coarse sediment transfer and implications for sediment management.

Drone based quantification of channel response to an extreme flood for a piedmont stream (2019)
Journal Article
Heritage, G., & Entwistle, N. (2019). Drone based quantification of channel response to an extreme flood for a piedmont stream. Remote Sensing, 11(17), 2031. https://doi.org/10.3390/rs11172031

The influence of extreme floods on the form and functioning of upland systems has concentrated on the erosive impact of these flows. They are seen to be highly competent with coarse sediment transport rates limited by upstream supply and moderated by... Read More about Drone based quantification of channel response to an extreme flood for a piedmont stream.

Ecohydraulic modelling of anabranching rivers (2019)
Journal Article
Entwistle, N., Heritage, G., & Milan, D. (2019). Ecohydraulic modelling of anabranching rivers. River Research and Applications, 35(4), 353-364. https://doi.org/10.1002/rra.3413

In this paper we provide the first quantitative evidence of the spatial complexity of habitat diversity across the flow regime for locally anabranching channels, and their potential increased biodiversity value in comparison to managed single-thread... Read More about Ecohydraulic modelling of anabranching rivers.

Small unmanned aerial model accuracy for photogrammetrical fluvial bathymetric survey (2019)
Journal Article
Entwistle, N., & Heritage, G. (2019). Small unmanned aerial model accuracy for photogrammetrical fluvial bathymetric survey. Journal of Applied Remote Sensing, 13(1), 014523. https://doi.org/10.1117/1.JRS.13.014523

Fluvial systems offer a challenging and varied environment for topographic survey, displaying a rapidly varying morphology, vegetation assemblage and degree of submergence. Traditionally theodolite or GPS based systems have been used to capture cross... Read More about Small unmanned aerial model accuracy for photogrammetrical fluvial bathymetric survey.

Meltwater temperature in streams draining Alpine glaciers (2018)
Journal Article
Williamson, R., Entwistle, N., & Collins, D. (2018). Meltwater temperature in streams draining Alpine glaciers. Science of the Total Environment, 658(Mar 19), 777-786. https://doi.org/10.1016/j.scitotenv.2018.12.215

Water temperature is of considerable importance with respect to lotic habitats. Water temperature influences physical, chemical and biological conditions within river environments and is, therefore, a key determiner of the health of a river. Climate... Read More about Meltwater temperature in streams draining Alpine glaciers.

Recent changes to floodplain character and functionality in England (2018)
Journal Article
Entwistle, N., Heritage, G., Schofield, L., & Williamson, R. (2018). Recent changes to floodplain character and functionality in England. CATENA, 174(Mar 19), 490-498. https://doi.org/10.1016/j.catena.2018.11.018

Regime analysis suggests that temperate alluvial watercourses overtop their banks on average once every 1.5 years transferring water and sediment across the valley floor to form floodplains helping maintain a strong hydrological connection between in... Read More about Recent changes to floodplain character and functionality in England.

Quantifying and contextualising cyclone-driven, extreme flood magnitudes in bedrock-influenced dryland rivers (2018)
Journal Article
Heritage, G., Entwistle, N., Milan, D., & Tooth, S. (2018). Quantifying and contextualising cyclone-driven, extreme flood magnitudes in bedrock-influenced dryland rivers. Advances in water resources, 123(Jan 19), 145-159. https://doi.org/10.1016/j.advwatres.2018.11.006

In many drylands worldwide, rivers are subjected to episodic, extreme flood events and associated sediment stripping. These events may trigger transformations from mixed bedrock-alluvial channels characterised by high geomorphic and ecological divers... Read More about Quantifying and contextualising cyclone-driven, extreme flood magnitudes in bedrock-influenced dryland rivers.

Flood energy dissipation in anabranching channels (2018)
Journal Article
Entwistle, N., Heritage, G., & Milan, D. (2018). Flood energy dissipation in anabranching channels. River Research and Applications, 34(7), 709-720. https://doi.org/10.1002/rra.3299

This study examines the character of developing anabranched channel networks on the River Wear, north England using metre-scale aerial LiDAR. DSM-DTM interpretation reveals a well-developed vegetation structure and a locally diverse terrain, dominate... Read More about Flood energy dissipation in anabranching channels.

Morphodynamics of bedrock-influenced dryland rivers during extreme floods : insights from the Kruger National Park, South Africa (2018)
Journal Article
Milan, D., Heritage, G., Tooth, S., & Entwistle, N. (2018). Morphodynamics of bedrock-influenced dryland rivers during extreme floods : insights from the Kruger National Park, South Africa. Geological Society of America Bulletin, 130(11-12), 1825-1841. https://doi.org/10.1130/B31839.1

High-magnitude flood events are among the world’s most widespread and significant natural hazards and play a key role in shaping river channel–floodplain morphology and riparian ecology. Development of conceptual and quantitative models for the respo... Read More about Morphodynamics of bedrock-influenced dryland rivers during extreme floods : insights from the Kruger National Park, South Africa.

Morphodynamic simulation of sediment deposition patterns on a recently stripped bedrock anastomosed channel (2018)
Journal Article
channel. Proceedings of the International Association of Hydrological Sciences, 377, 51-56. https://doi.org/10.5194/piahs-377-51-2018

Some mixed bedrock-alluvial dryland rivers are known to undergo cycles of alluvial building during low flow periods, punctuated by stripping events during rare high magnitude flows. We focus on the Olifants River, Kruger National Park, South Africa,... Read More about Morphodynamic simulation of sediment deposition patterns on a recently stripped bedrock anastomosed channel.

Recent remote sensing applications for hydro and morphodynamic monitoring and modelling (2018)
Journal Article
morphodynamic monitoring and modelling. Earth Surface Processes and Landforms, 43(10), 2283-2291. https://doi.org/10.1002/esp.4378

It is not new to recognise that data from remote sensing platforms is transforming the way we characterise and analyse our environment. The ability to collect continuous data spanning spatial scales now allows geomorphological research in a data rich... Read More about Recent remote sensing applications for hydro and morphodynamic monitoring and modelling.

An evaluation DEM accuracy acquired using a small unmanned aerial vehicle across a riverine environment (2017)
Journal Article
unmanned aerial vehicle across a riverine environment. International journal of new technology and research, 3(7), 43-48

Fluvial systems offer a challenging and varied environment for topographic survey, displaying a rapidly varying morphology, diversevegetation assemblage and varying degree of submergence. Traditionally theodolite or GPS based systems have been used t... Read More about An evaluation DEM accuracy acquired using a small unmanned aerial vehicle across a riverine environment.

Floodplains : the forgotten and abused component of the fluvial system (2016)
Journal Article
Heritage, G., Entwistle, N., & Bentley, S. (2016). Floodplains : the forgotten and abused component of the fluvial system. https://doi.org/10.1051/e3sconf/20160713007

River restoration is strongly focussed on in-channel initiatives driven by fisheries interests and a continued
desire for river stability. This contrasts greatly with the inherently mobile nature of watercourses. What is often
overlooked is the fac... Read More about Floodplains : the forgotten and abused component of the fluvial system.

Long-term flood controls on semi-arid river form : evidence from the Sabie and Olifants rivers, eastern South Africa (2015)
Journal Article
Heritage, G., Tooth, S., Entwistle, N., & Milan, D. (2015). Long-term flood controls on semi-arid river form : evidence from the Sabie and Olifants rivers, eastern South Africa. Proceedings of the International Association of Hydrological Sciences, 367, 141-146. https://doi.org/10.5194/piahs-367-141-2015

Rivers in the Kruger National Park, eastern South Africa, are characterised by bedrock-influenced ‘macrochannels’ containing variable alluvial thicknesses and riparian vegetation assemblages. Evidence from the Sabie and Olifants rivers suggests that... Read More about Long-term flood controls on semi-arid river form : evidence from the Sabie and Olifants rivers, eastern South Africa.

Anastomosing reach control on hydraulics and sediment distribution on the Sabie River, South Africa (2014)
Journal Article
Entwistle, N., Heritage, G., Tooth, S., & Milan, D. (2015). Anastomosing reach control on hydraulics and sediment distribution on the Sabie River, South Africa. Proceedings of the International Association of Hydrological Sciences, 367, 215-219. https://doi.org/10.5194/piahs-367-215-2015

Many of the large rivers in southern Africa exhibit a strong bedrock influence, being characterised by a channel incised 10–20 m into ancient planation surfaces. Under alluviated conditions, these channels display downstream sequences of channel type... Read More about Anastomosing reach control on hydraulics and sediment distribution on the Sabie River, South Africa.

Estimation of biophysical properties of woodland canopies using LiDAR and hyperspectral imagery (2012)
Thesis
Janardhan, V. Estimation of biophysical properties of woodland canopies using LiDAR and hyperspectral imagery. (Thesis). University of Salford

Vegetation canopies represent the interface between the atmosphere and the biosphere
and play an important role in determining energy and mass exchange. Accurate
characterisation of vegetation canopy characteristics is therefore important to
under... Read More about Estimation of biophysical properties of woodland canopies using LiDAR and hyperspectral imagery.

Mapping hydraulic biotopes using terrestrial laser scan data of water surface properties (2010)
Journal Article
Milan, D., Heritage, G., Large, A., & Entwistle, N. (2010). Mapping hydraulic biotopes using terrestrial laser scan data of water surface properties. Earth Surface Processes and Landforms, 35(8), 918-931. https://doi.org/10.1002/esp.1948

For more than a decade, habitat mapping using biotopes (in-channel hydraulically-defi ned habitats) has underpinned
aquatic conservation in the UK through (a) providing baseline information on system complexity and (b) allowing environmental
and ec... Read More about Mapping hydraulic biotopes using terrestrial laser scan data of water surface properties.

Repeat terrestrial laser scanner survey of pebble cluster creation and formation in response to flow change
Presentation / Conference
Entwistle, N., Heritage, G., Johnson, K., & Hetherington, D. Repeat terrestrial laser scanner survey of pebble cluster creation and formation in response to flow change. Presented at Remote Sensing and Photogrammetry Society Annual Conference, 2007. RSPSoc 2007 challenges for Earth observation: scientific, technical and commercial, Newcastle ­upon ­Tyne, UK

Water flow level in river channels is moderated by the interaction with the roughness of the surface over which it flows. The interaction is highly complex and remains poorly understood despite its economic and social importance in flood level foreca... Read More about Repeat terrestrial laser scanner survey of pebble cluster creation and formation in response to flow change.