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Article: A morphological classification of coastal forelands, with examples from South Africa

Knight, Jasper / Burningham, Helene

Geomorphology. 2022 Oct. 15, v. 415

2022

Abstract: Alongshore variations in the cross-shore width, and therefore volume, of sandy beaches are important because these reflect spatial variability in the operation of wave- and wind-driven processes taking place both at the shoreface and in the supratidal ... ...

Abstract	Alongshore variations in the cross-shore width, and therefore volume, of sandy beaches are important because these reflect spatial variability in the operation of wave- and wind-driven processes taking place both at the shoreface and in the supratidal zone. One key geomorphic signature of variations in cross-shore beach width is the development of coastal forelands. Different foreland types have been described in the literature from very specific geomorphic contexts, but hitherto there has been no overarching classification scheme that genetically links these different foreland types, or considers them in the wider context of sandy beach dynamics. In order to achieve this aim, this study maps and inventorises 87 forelands from the South African coast (~2600 km long), and classifies these into four morphological types: salients, tombolos, cuspate forelands, and ramp forelands. These foreland types have different morphological properties, reflecting the interplay of coastal erosional and depositional processes and any antecedent conditions; and a varying balance of morphodynamic controls on their development and behaviour. These include variations in wave (and to a lesser extent wind) energy, sediment supply, and the presence of bedrock outcrops of different sizes, shapes and positions along the shoreline. Analysis of foreland morphology and dynamic behaviour, based on examples from South Africa, enables a better understanding of coastal forelands globally as integrated sediment systems and responsive to the range of forcings driving coastal change.
Keywords	bedrock ; coasts ; energy ; sediments ; shorelines ; wind ; South Africa
Language	English
Dates of publication	2022-1015
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	58028-4
ISSN	0169-555X
ISSN	0169-555X
DOI	10.1016/j.geomorph.2022.108410
Database	NAL-Catalogue (AGRICOLA)

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Article: The need for data integration to address the challenges of climate change on the Guyana coast

Oyedotun, Temitope D. Timothy / Burningham, Helene

Geography and sustainability. 2021 Dec., v. 2, no. 4

2021

Abstract: Guyana's capacity to address the impacts of climate change on its coastal environment requires the ability to monitor, quantify and understand coastal change over short-, medium- and long- term. Understanding the drivers of change in coastal and marine ... ...

Abstract	Guyana's capacity to address the impacts of climate change on its coastal environment requires the ability to monitor, quantify and understand coastal change over short-, medium- and long- term. Understanding the drivers of change in coastal and marine environment can be achieved through the accurate measurement and critical analyses of morphologies, flows, processes and responses. This manuscript presents a strategy developed to create a central resource, database and web-based platform to integrate data and information on the drivers and the changes within Guyana coastal and marine environment. The strategy involves four complimentary work packages including data collection, development of a platform for data integration, application of the data for coastal change analyses and consultation with stakeholders. The last aims to assess the role of the integrated data systems to support strategic governance and sustainable decision-making. It is hoped that the output of this strategy would support the country's climate-focused agencies, organisations, decision-makers, and researchers in their tasks and endeavours.
Keywords	Internet ; climate change ; coasts ; data collection ; databases ; decision making ; geography ; governance ; marine environment ; stakeholders ; Guyana
Language	English
Dates of publication	2021-12
Size	p. 288-297.
Publishing place	Elsevier B.V.
Document type	Article
ISSN	2666-6839
DOI	10.1016/j.geosus.2021.11.003
Database	NAL-Catalogue (AGRICOLA)

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Article: Understanding coastal change using shoreline trend analysis supported by cluster-based segmentation

Burningham, Helene / Jon French

Geomorphology. 2017 Apr. 01, v. 282

2017

Abstract: Shoreline change analysis is a well defined and widely adopted approach for the examination of trends in coastal position over different timescales. Conventional shoreline change metrics are best suited to resolving progressive quasi-linear trends. ... ...

Abstract	Shoreline change analysis is a well defined and widely adopted approach for the examination of trends in coastal position over different timescales. Conventional shoreline change metrics are best suited to resolving progressive quasi-linear trends. However, coastal change is often highly non-linear and may exhibit complex behaviour including trend-reversals. This paper advocates a secondary level of investigation based on a cluster analysis to resolve a more complete range of coastal behaviours. Cluster-based segmentation of shoreline behaviour is demonstrated with reference to a regional-scale case study of the Suffolk coast, eastern UK. An exceptionally comprehensive suite of shoreline datasets covering the period 1881 to 2015 is used to examine both centennial- and intra-decadal scale change in shoreline position. Analysis of shoreline position changes at a 100m alongshore interval along 74km of coastline reveals a number of distinct behaviours. The suite of behaviours varies with the timescale of analysis. There is little evidence of regionally coherent shoreline change. Rather, the analyses reveal a complex interaction between met-ocean forcing, inherited geological and geomorphological controls, and evolving anthropogenic intervention that drives changing foci of erosion and deposition.
Keywords	case studies ; cluster analysis ; coasts ; data collection ; shorelines ; United Kingdom
Language	English
Dates of publication	2017-0401
Size	p. 131-149.
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	58028-4
ISSN	0169-555X
ISSN	0169-555X
DOI	10.1016/j.geomorph.2016.12.029
Database	NAL-Catalogue (AGRICOLA)

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Article: Comparable short-term morphodynamics of three estuarine–coastal systems in the southwest coastal region of England, UK

Oyedotun, Temitope D. Timothy / Burningham, Helene

Regional studies in marine science. 2019 Sept., v. 31

2019

Abstract: Here, we describe and compare the changes in low tide channel position and the morphology of the three estuaries in southwest England from an analysis of contemporary (2008–2016) topographic surveys. The Hayle, Gannel, and Camel estuaries and their ... ...

Abstract	Here, we describe and compare the changes in low tide channel position and the morphology of the three estuaries in southwest England from an analysis of contemporary (2008–2016) topographic surveys. The Hayle, Gannel, and Camel estuaries and their adjacent open-coast shorelines were subject of various studies in the past principally in terms of mining impacts on estuarine sediments and sedimentation, but no regional synthesis of the contemporary behaviour has yet been attempted. Light Detection and Ranging (LiDAR) data for the north coast of Cornwall are analysed for planform morphological changes of the systems. At the annual scale, intertidal bars and sandwaves migrate across the foreshore and into the inlet region, where flood-oriented and wave-forced movement is evident. This is evidenced at all the estuarine systems considered here. However, the steep upstream slope of the Hayle is almost devoid of bedforms, while the shallower upstream slope of the Gannel comprises similar scaled bedforms to the whole flood delta, and the megaripples of Camel flood delta are smaller on the backslope. Over the short-term covered by the LiDAR data considered here, there was no significant storm surges, and a relatively consistent wave climate. The occurrence of strong onshore wave conditions are possibly the drivers of contemporary behaviour, and with the inner estuary intertidal currents, for the movements of sediments within the estuarine environment, thereby causing the re-organisation of sediments and the shifting of channel position.
Keywords	climate ; coasts ; estuaries ; estuarine sediments ; lidar ; littoral zone ; marine science ; mining ; shorelines ; storms ; surveys ; topography ; England
Language	English
Dates of publication	2019-09
Publishing place	Elsevier B.V.
Document type	Article
ISSN	2352-4855
DOI	10.1016/j.rsma.2019.100749
Database	NAL-Catalogue (AGRICOLA)

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Article: Simulating seasonal to multi-decadal variation in lake thermal response to meteorological forcing using the UCLAKE 1-dimensional model code

Morales-Marín, Luis A / French, Jon R / Burningham, Helene / Evans, Chris / Burden, Annette

Limnologica. 2021 May, v. 88

2021

Abstract: Lake temperature responses to climate forcing are of interest on account of the important linkages between water temperature and ecosystem processes. This paper describes a new 1-dimensional (1D) numerical model code and its application to investigations ...

Abstract	Lake temperature responses to climate forcing are of interest on account of the important linkages between water temperature and ecosystem processes. This paper describes a new 1-dimensional (1D) numerical model code and its application to investigations of multi-scale linkages between the vertical temperature structure and meteorological forcing. UCLAKE is implemented as highly portable open-source software, based on computationally efficient algorithms, and able to resolve sub-daily (e.g., hourly) dynamics while retaining the efficiency to simulate multi-decadal time scales.A UCLAKE model is calibrated and validated against thermistor profile time series for a small upland lake in North Wales, UK. Some of the challenges in 1D model calibration are explored and a sensitivity analysis reveals a dependence of optimal parameter set values on water column depth and time. An exploratory 52-year hindcast simulation demonstrates the computational efficiency of UCLAKE for multi-decadal studies of trends in lake temperature that vary with depth. A supplementary application of UCLAKE to Windermere, in the English Lake District, demonstrates its performance for larger and deeper lakes.
Keywords	climate ; computer software ; ecosystems ; highlands ; lakes ; mathematical models ; thermistors ; time series analysis ; water temperature
Language	English
Dates of publication	2021-05
Publishing place	Elsevier GmbH
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	3380-7
ISSN	0075-9511
ISSN	0075-9511
DOI	10.1016/j.limno.2021.125874
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Simulated effects of floodplain restoration on plant community types

Clilverd, Hannah M. / Thompson, Julian R. / Sayer, Carl D. / Heppell, Catherine M. / Axmacher, Jan C. / Stratford, Charlie / Burningham, Helene

Applied Vegetation Science. 2022 Oct., v. 25, no. 4 p.e12697-

2022

Abstract: AIMS: Channelization and artificial embankments have altered the natural flood regime of many rivers, impacting the hydrological characteristics of floodplain ecosystems and their biological communities. This study was undertaken on a floodplain meadow ... ...

Abstract	AIMS: Channelization and artificial embankments have altered the natural flood regime of many rivers, impacting the hydrological characteristics of floodplain ecosystems and their biological communities. This study was undertaken on a floodplain meadow to assess spatial patterns of plant communities in relation to soil physical and chemical conditions, and the impacts of floodplain restoration that involved embankment‐removal. LOCATION: River Glaven, Hunworth, Norfolk, UK. METHODS: Fine‐scale plant and soil chemistry sampling was conducted prior to embankment removal, and hydrological and climatological conditions were monitored prior to and after embankment removal. Hydrological/hydraulic modelling simulated groundwater levels for a 10‐year period to assess changes in soil aeration stresses and plant community composition following embankment‐removal. RESULTS: Hydrology was identified as the primary driver of plant community composition. Soil fertility was also important. Unique continuous measurements of vadose dissolved oxygen concentrations using oxygen optodes indicated strong coupling between water table depth and root zone dissolved oxygen concentrations. Reinstatement of overbank flows did not substantially affect aeration stress across most of the meadow because of pre‐existing wet conditions. However, along the river‐floodplain ecotone, aeration stress increased substantially from conditions normally associated with dry grassland to those characteristic of fen communities (p < 0.05). CONCLUSIONS: This restored water table regime may be suitable for more diverse plant assemblages. Benefits of flooding for increased species richness and transport of propagules may, however, be over‐ridden without accompanying water level management during the growing season, or hay removal to balance additional supply of nutrients from river floodwater and sediment. Our results show that hydrological/hydraulic modelling combined with quantitative measures of plant water‐requirements can provide practical and adaptive management tools to estimate the response of floodplain communities to changing water regimes.
Keywords	adaptive management ; aeration ; botanical composition ; channelization ; dissolved oxygen ; ecotones ; floodplains ; groundwater ; hay ; meadows ; oxygen ; plant communities ; rhizosphere ; rivers ; sediments ; soil ; soil chemistry ; soil fertility ; species richness ; water table
Language	English
Dates of publication	2022-10
Publishing place	John Wiley & Sons, Ltd
Document type	Article ; Online
Note	JOURNAL ARTICLE
ZDB-ID	1445659-x
ISSN	1402-2001
ISSN	1402-2001
DOI	10.1111/avsc.12697
Database	NAL-Catalogue (AGRICOLA)

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Article: Evaluating the Response of Mediterranean-Atlantic Saltmarshes to Sea-Level Rise

Fernandez-Nunez, Miriam / Burningham, Helene / Díaz-Cuevas, Pilar / Ojeda-Zújar, José

Resources. 2019 Mar. 09, v. 8, no. 1

2019

Abstract: Saltmarshes provide high-value ecological services and play an important role in coastal ecosystems and populations. As the rate of sea level rise accelerates in response to climate change, saltmarshes and tidal environments and the ecosystem services ... ...

Abstract	Saltmarshes provide high-value ecological services and play an important role in coastal ecosystems and populations. As the rate of sea level rise accelerates in response to climate change, saltmarshes and tidal environments and the ecosystem services that they provide could be lost in those areas that lack sediment supply for vertical accretion or space for landward migration. Predictive models could play an important role in foreseeing those impacts, and to guide the implementation of suitable management plans that increase the adaptive capacity of these valuable ecosystems. The SLAMM (sea-level affecting marshes model) has been extensively used to evaluate coastal wetland habitat response to sea-level rise. However, uncertainties in predicted response will also reflect the accuracy and quality of primary inputs such as elevation and habitat coverage. Here, we assessed the potential of SLAMM for investigating the response of Atlantic-Mediterranean saltmarshes to future sea-level rise and its application in managerial schemes. Our findings show that SLAMM is sensitive to elevation and habitat maps resolution and that historical sea-level trend and saltmarsh accretion rates are the predominant input parameters that influence uncertainty in predictions of change in saltmarsh habitats. The understanding of the past evolution of the system, as well as the contemporary situation, is crucial to providing accurate uncertainty distributions and thus to set a robust baseline for future predictions.
Keywords	climate change ; coastal ecosystems ; ecosystem services ; habitats ; models ; prediction ; salt marshes ; sea level ; sediments ; uncertainty
Language	English
Dates of publication	2019-0309
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2682482-6
ISSN	2079-9276
ISSN	2079-9276
DOI	10.3390/resources8010050
Database	NAL-Catalogue (AGRICOLA)

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Article: Ecology and conservation of the rare annual Petrorhagia nanteuilii (Childing Pink) on the vegetated shingle spits of Pagham Harbour, West Sussex

Gardner, Elizabeth / Burningham, Helene

Journal of coastal conservation. 2013 Sept., v. 17, no. 3

2013

Abstract: Petrorhagia nanteuilii (Childing Pink), a nationally rare annual, exists at only one location in the UK on the vegetated shingle spits at Pagham Harbour, West Sussex. Primarily found in dry grassland habitats throughout Spain and Portugal, at present its ...

Abstract	Petrorhagia nanteuilii (Childing Pink), a nationally rare annual, exists at only one location in the UK on the vegetated shingle spits at Pagham Harbour, West Sussex. Primarily found in dry grassland habitats throughout Spain and Portugal, at present its only known threat in the UK is the invasive perennial, Centranthus ruber (Red Valerian); however for conservation of Petrorhagia nanteuilii to be sustainable, its presence at Pagham Harbour must be better understood. The aim of this study was therefore to investigate the local distribution and ecological associations of Petrorhagia nanteuilii in order to understand the relationships between Petrorhagia nanteuilii and the vegetated shingle communities and thereby inform their conservation. Field surveys of the shingle flora were undertaken in 2007 and 2011. Vegetation was sampled and the edaphic and physical environment was also investigated using TWINSPAN, multivariate analyses and GIS. The results of the study show that Petrorhagia nanteuilii has little association with the true vegetated shingle communities on the shingle spits. They also reveal that in recent years the species has spread rapidly across parts of the site due to a number of adaptations aiding its survival and recent shifts in conservation management that have influenced spit morphology. The ecological disconnection that exists between Petrorhagia nanteuilii and the true shingle communities means it is unlikely that management strategies will be conflicting. The study concludes that conservation of both is feasible, however for management to be sustainable, both short-term and long-term strategies must be considered.
Keywords	Centranthus ruber ; flora ; geographic information systems ; grasslands ; habitats ; multivariate analysis ; surveys ; Portugal ; Spain ; United Kingdom
Language	English
Dates of publication	2013-09
Size	p. 589-600.
Publishing place	Springer-Verlag
Document type	Article
ZDB-ID	2053395-0
ISSN	1874-7841 ; 1400-0350
ISSN (online)	1874-7841
ISSN	1400-0350
DOI	10.1007/s11852-013-0257-0
Database	NAL-Catalogue (AGRICOLA)

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Article: Seabed dynamics in a lage coastal embayment: 180 years of morphological change in the outer Thames estuary

Burningham, Helene / French, Jon

Hydrobiologia. 2011 Sept., v. 672, no. 1

2011

Abstract: This article analyses the morphological history of the outer Thames seabed, covering over 3,000 km2 from Aldeburgh (Suffolk), to Southend-on-Sea (Essex) and Margate (Kent). The region has been depicted on bathymetric charts since the sixteenth century, ... ...

Abstract	This article analyses the morphological history of the outer Thames seabed, covering over 3,000 km2 from Aldeburgh (Suffolk), to Southend-on-Sea (Essex) and Margate (Kent). The region has been depicted on bathymetric charts since the sixteenth century, and has been formally charted since the eighteenth century. Charts published since the early 1800s incorporate sufficient grid reference or ground control detail for georectification onto a common coordinate system (British National Grid). The morphological history of the outer seabed was thus reconstructed through the digitisation and interpolation of soundings onto a regular grid (3D surface). The evolution of seabed morphology was examined using transects, bathymetric change maps and spatial statistics. The results show considerable spatial variability in seabed behaviour. Within the central Thames, banks have experienced significant depth changes can be associated with lateral shifts in individual banks. Some of the outer banks in this region exhibit progressive elongation. Shifts in bank position across the Suffolk shoreface appear to be more subtle, and there is evidence here of both onshore and offshore migration. There is no clear evidence of any regionally coherent response to large-scale historical forcing such as sea-level rise.
Keywords	estuaries ; evolution ; history ; sea level ; statistics
Language	English
Dates of publication	2011-09
Size	p. 105-119.
Publishing place	Springer-Verlag
Document type	Article
ZDB-ID	214428-1
ISSN	1573-5117 ; 0018-8158
ISSN (online)	1573-5117
ISSN	0018-8158
DOI	10.1007/s10750-011-0760-y
Database	NAL-Catalogue (AGRICOLA)

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