Trevor Bell's research while affiliated with Memorial University of Newfoundland and other places

Publications (108)

Article
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This study investigates the postglacial sea-level history of eastern Cumberland Peninsula, a region of Baffin Island, Nunavut where submerged terraces were documented in the 1970s. The gradient in elevation of emerged postglacial marine-limit deltas and fiord-head moraines led Dyke (1979) to propose a conceptual model for continuous postglacial sub...
Article
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The Cockburn Substage readvance marks the last major late-glacial advance of the northeast sector of the Laurentide Ice Sheet on Baffin Island. The causes of this abrupt, late reversal of retreat are still unclear, but greater chronological control may provide some insight. To date, the literature has focused on the large terminal moraines in the r...
Conference Paper
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Reconstructing the configuration and behaviour of palaeo-ice sheets is an important scientific goal as it provides new insights into how ice sheets respond to both internal and external drivers over a range of timescales. During the last glaciation, the British-Irish Ice Sheet (BIIS) and the Newfoundland Ice Sheet (NIS) were situated on opposite si...
Article
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Species distribution models are commonly used in the marine environment as management tools. The high cost of collecting marine data for modelling makes them finite, especially in remote locations. Underwater image datasets from multiple surveys were leveraged to model the presence-absence and abundance of Arctic soft-shell clam (Mya spp.) to suppo...
Article
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Seabed sediment composition is an important component of benthic habitat and there are many approaches for producing maps that convey sediment information to marine managers. Random Forest is a popular statistical method for thematic seabed sediment mapping using both categorical and quantitative supervised modelling approaches. This study compares...
Chapter
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The Qikiqtaaluk and Kivalliq regions are the two most populated regions in Nunavut, with over 29 000 people in 20 communities. These two regions are part of the Integrated Regional Impact Study (IRIS) 2 region, otherwise referred to as the Eastern Canadian Arctic. This region is characterized by few terrestrial and marine mammals and avian fauna re...
Chapter
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The Eastern Canadian Arctic portion of Nunavut (the IRIS 2 region) extends over 3500 km north-south from James Bay to northernmost Ellesmere Island. With a wide range of geology, relief, climate, ice conditions, and other variables, the coasts of the region exhibit a wide variety of morphology, stability, drivers of change, and coastal hazards. • T...
Chapter
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Nunatsiavut Nuluak is addressing Inuit concerns about the impacts of climate change and modernization on the health of coastal ecosystems and communities of northern Labrador. The overarching goal is to provide meaningful and timely research on regionally identified priorities while involving Inuit and Inuit Knowledge in all aspects of the project....
Technical Report
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Limited baseline knowledge about the marine geology of the seabed of inner Frobisher Bay poses a challenge to coastal and seabed infrastructure for the City of Iqaluit. Over the past four years, the area covered by targeted, high-resolution multibeam bathymetric mapping has increased around the southeastern part of Baffin Island, allowing to better...
Article
Submarine slope failures in the nearshore waters of SE Baffin Island, eastern Canadian Arctic, present a challenge to coastal and seabed development. Submarine slope failures are a known geohazard in fjords in Norway, Chile, Alaska, British Columbia and elsewhere, but have received little attention in the coastal waters of Arctic Canada. Over the p...
Data
MBES data harmonization methodology. Detailed description of methods used to combine MBES data from multiple survey years and systems. (PDF)
Article
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Benthic habitat maps, including maps of seabed sediments, have become critical spatial-decision support tools for marine ecological management and conservation. Despite the increasing recognition that environmental variables should be considered at multiple spatial scales, variables used in habitat mapping are often implemented at a single scale. T...
Data
Sediment grain size data. Mud, sand, and gravel size fraction data for grab samples collected near Qikiqtarjuaq, NU. (XLSX)
Article
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This paper identifies and characterizes current knowledge on climate change impacts, adaptation, and vulnerability for Canada's northern coastline, outlining key research gaps. Warming temperatures and increased precipitation have been documented across the northern coast, with the rate of sea ice decline ranging from 2.9% to 10.4% per decade. Stor...
Article
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The Torngat Mountains National Park, northern Labrador, Canada, contains more than 120 small glaciers: the only remaining glaciers in continental northeast North America. These small cirque glaciers exist in a unique topo-climatic setting, experiencing temperate maritime summer conditions yet very cold and dry winters, and may provide insights into...
Chapter
Nunatsiavut Nuluak is addressing Inuit concerns about the impacts of climate change and modernization on the health of coastal ecosystems and communities of northern Labrador. The overarching goal is to provide meaningful and timely research on regionally identified priorities while involving Inuit and Inuit Knowledge in all aspects of the project....
Chapter
Full-text available
A diverse body of literature discusses the importance and application of concepts related to sustainability in the Arctic and Subarctic, with a considerable portion of scholarship being developed outside of Northern regions. However, rather than applying external definitions of sustainability to the Arctic and Subarctic, it is important to recogniz...
Article
Full-text available
The Torngat Mountains National Park, northern Labrador, Canada, contains more than 120 small glaciers; the last remaining glaciers in continental northeast North America. These small cirque glaciers exist in a unique topo-climatic setting, experiencing temperate maritime summer conditions, yet very cold and dry winters, and may provide insights int...
Conference Paper
This panel discussion presents and illustrates a new approach to what is typically referred to as community based monitoring (CBM). Normally, CBM is carried out to address science objectives, sometimes in collaboration with communities and with the benefit of Inuit Knowledge (IK). The success of such programs relies on the sustained support of scie...
Article
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Going Off, Growing Strong is a program for Inuit youth facing widespread social, cultural, and economic change. The overarching goals of the program are to: (1) enhance resilience and wellness; (2) build social connections for the youth; and (3) transmit traditional knowledge, skills, and values to participating youth.
Conference Paper
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The Circumpolar Arctic Coastal Communities Observatory [now KnOwledge] Network (CACCON) functions as the Arctic Regional Engagement Network for Future Earth Coasts. In partnership with other Arctic knowledge networks and programs, including the Exchange for Local Observations and Knowledge of the Arctic (ELOKA) and Arctic-COAST, CACCON promotes con...
Article
Dispossession from social and ecological support systems is a major concern for many Indigenous communities. In response to community health challenges in these settings a number of initiatives such as youth mentorship programs have shown some value in enhancing adaptive capacity. The pilot Going Off, Growing Strong program provides opportunities f...
Chapter
Full-text available
Nunatsiavut Nuluak is addressing Inuit concerns about the impacts of climate change and modernization on the health of coastal ecosystems and communities of northern Labrador. The overarching goal is to provide meaningful and timely research on regionally identified priorities while involving Inuit and Inuit Knowledge in all aspects of the project....
Article
Full-text available
The glaciers of the Torngat Mountains of northern Labrador are the southernmost of the Canadian Arctic and the easternmost of continental North America. Currently, 195 small mountain glaciers cover an area in excess of ~24km2, confined mostly to small cirques and upland depressions. Using a combination of field and remote sensing methods this study...
Conference Paper
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The Newfoundland Ice Sheet (NIS), which formed part of the North American Ice Sheet Complex, was situated on the margins of the northeast Atlantic Ocean during MIS 2-4. Although all were confluent at the last glacial maximum, the NIS is known to have supported independent ice centres with advances from the Laurentide Ice Sheet being restricted to N...
Conference Paper
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The former Newfoundland Ice Sheet was situated on the fringes of the northwest Atlantic Ocean and the Laurentide Ice Sheet (LIS) during the last glaciation. This location suggests Newfoundland is a key location for examining ice sheet response to a number of internal and external forcing mechanisms, including configuration changes in the LIS, ice s...
Technical Report
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This document summarizes field activities completed between 16 July and 29 August 2014 in the Hamlet of Arviat, Kivalliq Region, in southern Nunavut. This work was undertaken in partnership with the Hamlet of Arviat and the Government of Nunavut (GN). It was designed to characterize the landscape of the Hamlet of Arviat and surrounding area, includ...
Article
Landward retreat (marine transgression) is a common response of coastal systems to rising relative sea level. However, given sufficient sediment supply, the coast may advance seaward. The latter response of gravel barriers has been recorded in parts of southeastern and northwestern Canada, where seaward-rising sets of beach ridges are observed in a...
Technical Report
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The Rapid Arctic Transitions due to Infrastructure and Climate (RATIC) initiative is a forum for developing and sharing new ideas and methods to facilitate the best practices for as-sessing, responding to, and adaptively managing the cumulative effects of Arctic infrastruc-ture and climate change. This summary is provided as input the Third Interna...
Article
Recent warm winters have negatively impacted many rural Labrador residents, raising concerns over regional climate change and variability. To better understand these events, the recent temperature record was examined in detail using atmospheric reanalyses and relevant station data. In addition to quantifying seasonal and annual trends, the influenc...
Article
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Study of soils in St. John’s, Canada showed elevated Pb levels representing a potential ex-posure risk for young children. Old trees growing in the city present a potential annually-resolved record of Pb levels over past centuries that provides important temporal and spatial dimensions to Pb exposure risk assessment. This paper reports the results...
Chapter
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The Eastern Subarctic IRIS encompasses the Inuit territories of Nunavik (northern Quebec) and Nunatsiavut (northern Labrador). Both territories have a form of self-government that is evolving towards greater autonomy. Population size is about 10800 residents in Nunavik and 10550 in Nunatsiavut. Demographic growth from 2001 to 2006 was very high in...
Chapter
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Integrated seabed mapping is an important prerequisite for effective management of offshore areas. With the rapidly expanding City of Iqaluit on its shores and mineral resources on nearby Hall Peninsula, Frobisher Bay will undoubtedly see new infrastructure development over the next several years. The 2014 field season marked the first of a two-yea...
Chapter
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The waters around southeastern Baffin Island are some of the least known areas of Canada’s submerged lands. The existing knowledge of bedrock geology offshore of Hall and Cumberland peninsulas is constrained primarily by aeromagnetic signatures. The surficial geology is inferred mainly from regional bathymetry and ice-flow directions on the adjacen...
Chapter
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The stability and safety of infrastructure in the Inuvialuit Settlement Region (Yukon North Slope and Northwest Territories) and the Kitikmeot region (Nunavut) are of central concern to residents, governments, and industry. Infrastructure sensitivity occurs through climate-induced change in three key areas: permafrost, hydrology and coastal conditi...
Chapter
Communities in northern Canada are experiencing the effects of a changing climate. The impacts in the north are materializing faster due to recent accelerated arctic warming and its effects, as well as increasing extreme weather events (Barber et al. 2008; Graversen et al. 2008; Kaufman et al. 2009; Min et al. 2008). These changes also have more di...
Conference Paper
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CACCON ("Catch-On") initiates a pan-Arctic network of community-engaged, multi-faceted and integrative coastal observatories and knowledge hubs. This ICARP-III initiative builds on the results of an initial scoping workshop in April 2014, with support from LOICZ (Land-Ocean Interactions in the Coastal Zone) and IASC (International Arctic Science Co...
Conference Paper
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Eastern Baffin Island, Nunavut, has a complex history of glacio-isostatic adjustment and relative sea level since the Last Glacial Maximum. From the eastward-dipping raised shorelines on Cumberland Peninsula, eastern Baffin Island, Dyke (1979, Arctic & Alpine Research 11: 179-202) inferred the continuation of postglacial shorelines below present se...
Article
This study presents the first complete glacier inventory of the Torngat Mountains, northern Labrador, Canada. In total, 195 glaciers and ice masses are identified, covering a total area of 24.5±1.8 km2. Mapped ice masses range in size from 0.01 to 1.26 km2, with a median size of 0.08 km2. Ice masses have a median elevation of 776 m a.s.l. and span...
Conference Paper
Sea ice is a critical component of the Arctic coastal environment. For northern communities, it is a central part of culture, community, and livelihood. Recent changes in Arctic climate have led to greater unpredictability in sea ice conditions, making travel and hunting more hazardous, particularly during the dynamic freeze-up and break-up periods...
Chapter
The paleogeography of Atlantic Canada has changed dramatically during the postglacial period. Following glacial retreat, a complex pattern of sea-level change led to the subaerial exposure of large landforms, and archaeological evidence suggests some human presence. The highest potential for the preservation of submerged archaeological landscapes i...
Article
Vulnerability assessments (VAs) have been widely used to understand the risks posed by climate change and identify opportunities for adaptation. Few studies, however, have evaluated VAs from the perspective of intended knowledge users or with reference to established best practices. In this paper, we identify and evaluate VAs focusing on the built...
Article
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Drawing on vulnerability approaches from the climate change literature, this paper explores the vulnerability of residents of the community of Rigolet, Nunatsiavut, Labrador, to changes in freshwater. Our approach emphasizes local preferences and values. We analyze the results from 89 household interviews (88% response) and targeted interviews in R...
Chapter
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This paper summarizes observations of surficial geology and landscape hazards relevant to infrastructure stability and community sustainability in Arviat, Nunavut. It is based on a site visit and rapid reconnaissance survey in July 2009 in support of climate-change adaptation planning. The scientific work focused on surficial deposits, permafrost a...
Article
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Abstrakt. Badania dotyczące zawartości ołowiu w glebach przeprowadzone w St. John's (wschodnia Kanada) wykazały znaczne przekroczenie dopuszczal-nych norm, szczególnie w centralnej, najstarszej części miasta. Chcąc odtwo-rzyć zmienność czasowo-przestrzenną zanieczyszczenia ołowiem w przeszłości, zdecydowano się wykorzystać przyrosty roczne starych...
Article
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This paper introduces an approach to understanding water security in remote communities that emphasises drinking water access, availability, quality, and preference, presenting exploratory findings from Rigolet and Nain, located within the Inuit Settlement Region of Nunatsiavut, eastern Subarctic Canada. Individual and household interviews numberin...
Article
Two informally named basins (Mirabilite Basins 1 and 2) along a submergent coastline on Banks Island, Canadian Arctic Archipelago, host up to 1 m-thick accumulations of mirabilite (Na2SO4·10H2O) underlying stratified water bodies with basal anoxic brines. Unlike isostatically uplifting coastlines that trap seawater in coastal basins, these basins f...
Article
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This paper presents an approach that allows production of benthic substrate and habitat maps in fjord environments. This approach is used to support the management of the Gilbert Bay Marine Protected Area (MPA) in southeastern Labrador, Atlantic Canada. Multibeam sonar-derived bathymetry, seabed slope, and acoustic reflectance (backscatter) were co...
Article
Local material and symbolic values have to date remained underrepresented in climate change research and policy and this gap is particularly salient in places that have been identified as at significant risk from climate change. In such places, the dominant approach to understanding the effects of climate change has been centred on vulnerability; i...
Chapter
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Le littoral du Labrador est échancré par de longs bras de mer que l’on classifie comme étant des fjords ou des fjards. Le long de la côte nord montagneuse, c’est un paysage de fjords classique qui domine, avec de profonds bassins aux fonds vaseux (jusqu’à ~ 300 m) séparés par des seuils rocheux et flanqués de hautes parois abruptes (jusqu’à 1 000 m...
Article
Fjords are geomorphic and biological systems of great interest to geomorphology, oceanography, and marine biology. Fjords typically have complex bathymetry and host highly diverse and heterogeneous habitats, making them challenging environments for marine habitat mapping using acoustic remote sensing. The fjords of Newfoundland and southern Labrado...
Chapter
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Long marine inlets that are classified as either fjords or fjards indent the Labrador coast. Along the mountainous north coast a classic fjord landscape dominates, with deep (up to ~300 m) muddy basins separated by rocky sills and flanked by high (up to 1,000 m), steep sidewalls. In contrast, the fjards of the central and southern coast are general...
Article
Present-day sediment distribution offers a potentially strong constraint on past ice sheet evolution. However, glacial system models (GSMs) cannot address this while lacking physically-based representations of subglacial sediment generation and transport. Incorporation of these elements in GSMs is also required in order to understand the impact of...
Article
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This study assesses the stability of Arctic gravel coasts across a range of timescales, based on field and remote-sensing studies of three coastal sites near Resolute Bay, Nunavut. It considers shore-zone sensitivity to ice, wind, and wave forcing at storm-event and annual timescales within a longer-term context, including coastal emergence resulti...
Chapter
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This book started as an idea at the GeoHab meeting held in Noumea, New Caledonia, in May 2007. We noticed that multibeam bathymetry maps of geomorphic features, sometimes shown as 3D fly-thru movies, followed by detailed sampling and photographic data (including underwater videos) illustrating the substrate conditions and associated biota was a con...
Chapter
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Southeastern Bay of Biscay (Basque coast) seafloor characterization and benthic habitat mapping was carried out integrating data from multibeam echosounder, topographic and bathymetric LiDAR, video, and sediment and biological sampling ranging from the intertidal zone up to 100 m depth over 1,096 km 2. The area shows high geomorpho-logic diversity...
Technical Report
Geological mapping of periglacial landforms and permafrost features was undertaken as part of a community-scale assessment of how different aspects of the physical environment pose risks to existing and future infrastructure development, and how climate change may further alter infrastructure vulnerability. Airphoto and ground surveys were used to...
Technical Report
Surficial and periglacial-permafrost geology mapping was undertaken in Clyde River, Nunavut, to assess how different aspects of the physical environment pose risks and hazards to existing and future infrastructure development, and how climate change may further alter infrastructure vulnerability. This research was undertaken as part of Natural Reso...
Article
This paper examines the variability in the relationship between climate and radial growth of black spruce (Picea mariana (Mill.) B.S.P.) and white spruce (Picea glauca (Moench) Voss) trees across central Labrador, Eastern Canada. Using climate-sensitive trees, an 11-year running Pearson correlation is applied to local records to examine the relatio...
Article
Coastal archaeological heritage is potentially vulnerable to increased erosion resulting from predicted future sea-level rise and increased storminess. As all sites cannot be protected, it is essential that heritage managers know which sites and landscapes are most at risk so they can prioritize resources and decision-making most effectively. One m...