Ocean and Coastal Management xxx (xxxx) xxx
Please cite this article as: Stewart Angus, James D. Hansom, Ocean and Coastal Management, https://doi.org/10.1016/j.ocecoaman.2020.105414
0964-5691/© 2020 Published by Elsevier Ltd.
Enhancing the resilience of high-vulnerability, low-elevation coastal zones
Stewart Angus
a, *
, James D. Hansom
b
a
NatureScot, Great Glen House, Leachkin Road, Inverness, Scotland, IV3 8NW, United Kingdom
b
University of Glasgow, School of Geographical & Earth Sciences, University of Glasgow, Glasgow, Scotland, G12 8QQ, United Kingdom
A R T I C L E INFO
Keywords:
Climate change
Adaptation
Outer Hebrides
Uist
Machair
Flooding
Biodiversity
Connectivity
Meta-ecosystems
ABSTRACT
This paper aims to explore how resilience to climate change can be achieved and optimised within an example of
a complex, high-vulnerability and low-elevation coastal zone. In Uist, Outer Hebrides, Scotland, a completed
INTERREG project provided a framework for resilience planning in a complex, multifaceted environment, where
offcial bodies, NGOs, academics and the community already work together productively. A range of approaches
to coping with climate change in Uist is reviewed, some of these originating from within the community, and the
local situation is discussed in the context of the extent to which resilience theory and national policy intertwine.
These approaches identify and combine nature-based solutions and compatible engineering-based solutions,
demonstrating how resilience can be achieved and enhanced in a vulnerable area via sustained engagement with
local communities backed by peer-reviewed research and complying with the policy context.
1. Introduction
This paper aims to identify how resilience to climate change can be
achieved and optimised within high-vulnerability and low-elevation
coastal zones, such as occur in the Outer Hebrides (Western Isles) of
Scotland. Low Elevation Coastal Zones (LECZs) (defned as coastal land
below 10 m elevation) are identifed to be at particular risk to climate
change impacts by the Intergovernmental Panel on Climate Change
(IPCC) Fifth Assessment Report (AR5) on coastal systems (Wong et al.,
2014). In Scotland, such vulnerable LECZ coastlines include many
islands characterised by soft sedimentary coasts that are exposed to high
wave energies and backed by an extensive and low-lying hinterland,
such as Sanday (Orkney), Uist (Outer Hebrides) and Tiree (Inner Heb-
rides). All lie within areas of the North Atlantic seaboard that are
impacted by high wave energies and sea level rise, with some areas
compounded by isostatic land subsidence.
The study area was selected partly because it has a wide range of
complex inter-related features that allow for onward use in other LECZs
but also because of concerns raised by residents and their Local Au-
thority. Other LECZs could include not only coasts in Orkney and the
Inner Hebrides in Scotland (see above) but internationally, given that
2% of the world’s land area has been classifed as LECZ. This imparts this
topic with a sense of urgency, not only in the context of global climate
change, but also in relation to the fact that Least Developed Countries
have a higher proportion (14%) of their populations in LECZs than
OECD countries (10%) (McGranahan et al., 2007; Vafeidis et al., 2011).
The inherent vulnerability to climate change impact in Scottish
LECZs is manifest in high rates of coastal erosion, especially on the
extensive sandy beach and dune coasts that are common to these islands
as well as impacting coastal habitats. Scottish Natural Heritage (SNH,
now rebranded as NatureScot), as the statutory advisory body on natural
heritage in Scotland, has targeted research on the vulnerability of the
low-lying areas of Uist to climate impacts as an exemplar of how any
research outcomes might be applied more widely. These studies (Angus
and Hansom 2004; Angus et al., 2011; Angus 2014, 2017a, 2018a,
2018b; Angus and Rennie 2014) have been developed and discussed
with local communities in meetings and presentations, initially within
the INTERREG CoastAdapt project (Muir et al., 2014) and subsequently
via meetings convened by local organisations, all of which generated
useful and practical feedback. Community awareness of the implications
of climate change for Uist is extremely high, particularly following the
experience of a severe storm in 2005 (Dawson et al., 2007; Angus and
Rennie 2014). Subsequent frequent interaction with academics has
helped enhance this community awareness, accompanied by a high level
of realism, that provides an effective template for the local development
and adoption of resilience strategies.
National studies on coastal change and related coastal risk in Scot-
land feature detailed reports on the Outer Hebrides within the Dynamic
Coast project (Hansom et al. 2017a, 2017b) while the Local Authority
(LA), Comhairle nan Eilean Siar (2016), has clear obligations under the
* Corresponding author.
E-mail addresses: stewart.angus@nature.scot (S. Angus), jim.hansom@glasgow.ac.uk (J.D. Hansom).
Contents lists available at ScienceDirect
Ocean and Coastal Management
journal homepage: http://www.elsevier.com/locate/ocecoaman
https://doi.org/10.1016/j.ocecoaman.2020.105414
Received 16 May 2020; Received in revised form 10 October 2020; Accepted 12 October 2020