Articles tagged with: Kevin Turner

  • Opportunities for study, work in growing field of geomatics

    Thursday, January 12, 2023 | By

    From The Brock News | THURSDAY, JANUARY 12, 2023 | by 

    A surveyor in a hard hat holds a satellite receiver on a hilltop near a body of water.

    Brock students have various opportunities to study in the growing field of geomatics, and next week they also have a chance to hear about employment potential from the Canadian Hydrographic Services, which produces maps of Canada’s waterways.

    The demand for skilled employees in geospatial technologies is growing — and so is Brock’s reputation for preparing students for employment in the field.

    With many students at the University training in geomatics, the outside world — including the Canadian Hydrographic Services (CHS) — is taking notice.

    Part of the Government of Canada, the CHS is responsible for ensuring the safe navigation of Canada’s waterways by surveying and making mapping products for use by commercial navigators and recreational boaters.

    Representatives from the organization will visit campus next week to speak with Geomatics students about potential employment opportunities.

    A portrait of Haley Lang against white background.

    Haley Lang was recently attracted to Brock’s minor in Geomatics because of her interest in the relationship between environmental restoration and geomatics.

    Geomatics involves geospatial technologies and the collection and study of data about the surface of Earth and other planets. The science and technology studied in geomatics relates to cartography, remote sensing and geographical information systems (GIS) and has a wide range of applications in the real world, according to Associate Professor Kevin Turner in the Department of Geography and Tourism Studies.

    “Innovative use of geospatial data enhances our ability to make more informed decisions across many fields, including natural resource management, ecology and conservation, Earth and atmospheric science, hazard and emergency response, urban planning, transportation, business and policy development,” he says. “Geomatics is useful for students across many departments and programs who are interested in incorporating spatial context and practical analytical tools into their skill sets.”

    Turner says graduates equipped with skills in geomatics are sought after by employers in government and private sectors and within academic research programs.

    “This is demonstrated by the effort the CHS is placing into their recruitment campaign, which we look forward to learning more about next week,” he says.

    Brock students in any program can minor in Geomatics through the Department of Geography and Tourism Studies or integrate courses in geomatics with their major to develop skills for future employment.

    Geography and Tourism Studies major Haley Lang says she is declaring a minor in Geomatics because she has long been taken by the old adage about a tree falling in the woods and making a sound — in other words, how the world changes whether or not it is being observed.

    “We can really only see what is happening in front of us, but with geomatics, we can understand landforms, surfaces and the Earth as a whole on a greater scale,” she says. “I am fascinated with how the broad discipline of geomatics helps to bridge gaps within research and provide a greater understanding of the world we’re in.”

    All students are welcome to attend the CHS information session, which takes place Wednesday, Jan. 18 at 9 a.m. in MCC-405 of the Mackenzie Chown Complex, but they are asked to RSVP via ExperienceBU in advance.

    REPOSTED FROM THE BROCK NEWS

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  • Students to explore space, climate change in new science communication program

    Tuesday, July 26, 2022 | By

    TUESDAY, JULY 26, 2022 | by  | REPOSTED FROM THE BROCK NEWS

    Earth seen from deep space with solid a black background.

    Brock University is launching a new Bachelor of Arts and Sciences in Earth and Planetary Science Communication.

    A new Brock University program will see students combine their interest in topics such as space exploration, earthquakes, floods and climate change with a passion for storytelling and global communication.

    Welcoming its first cohort in fall 2023, Brock’s Bachelor of Arts and Sciences in Earth and Planetary Science Communication is a cross-disciplinary program forged through a partnership with the Departments of Earth Sciences; Geography and Tourism Studies; and Communication, Popular Culture and Film.

    “Students are welcome from diverse backgrounds, voices and academic pursuits, making it ideal for those with interests in science, arts or both,” said Frank Fueten, Chair of Earth Sciences. “It will appeal to those who value Greta Thunberg’s activism just as much as those who enjoy the science broadcasting of David Suzuki.”

    The program’s graduates will understand the science behind important modern issues, such as Earth’s resource distribution and the exploration of other planets.

    “Students will have the skills to participate effectively and successfully in discussions and debates surrounding science in a variety of fields and industries,” Fueten said.

    The program is the only one in Canada that combines knowledge of Earth Sciences with communication skills in a single four-year undergraduate degree.

    “On the communication side, students will learn cutting-edge theory and practical skills to help understand the needs and concerns of the public, gather science data and employ social media effectively,” said Duncan Koerber, Assistant Professor in the Department of Communication, Popular Culture and Film.

    The program presents innovative courses such as Citizen Science, where students crowdsource the public to create new knowledge and data sets.

    “Citizen Science will empower citizens and communities to tackle environmental and social injustices and has the potential to inform innovation as well as policy changes in Niagara and beyond,” said Ebru Ustundag, Associate Professor in the Department of Geography and Tourism Studies. “Data empowerment of citizens via participatory practices will honour and preserve local traditions and knowledge and provide mitigation strategies for future residents and policy-makers.”

    Upper-year projects may adopt novel approaches to communicating science to the masses. While one student may promote volcanology through TikTok, another may craft a miniseries on microplastics.

    “The variety and customizability of project options will appeal to students who enjoy blazing a new trail,” Fueten said.

    The program will enable graduates to pursue careers in communication roles for government agencies, non-governmental organizations, universities and private companies, as well as in journalism.

    “We see our graduates landing roles in well-known organizations like the Discovery Network and the World Wildlife Fund,” said Kevin Turner, Associate Professor, Department of Geography and Tourism. “There is also great opportunity to join firms in the resource industry and other companies in environmental fields or geologically sensitive areas.”

    More information is available on the program website or by contacting earth@brocku.ca

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  • Brock geographer makes global connections during Fulbright Canada residency

    Friday, July 15, 2022 | By

    FRIDAY, JULY 15, 2022 | by  |  REPOSTED FROM THE BROCK NEWS

    A man in green cap poses beside the open window of a blue helicopter. Seated inside are two female students wearing headsets.

    Associate Professor Kevin Turner (right) stands outside a helicopter with Earth Sciences undergraduate student Marley Tessier (centre) and master’s student Michelle Pearce (left) during a fieldwork excursion to collect data samples in the northern Yukon earlier this summer.

    Almost two years after his Fulbright Canada Research Chair in Arctic Studies at the University of Washington was first announced, Kevin Turner is winding down his duties.

    The award normally involves a six-month residency, but the global pandemic prevented the Associate Professor in Brock University’s Departments of Geography and Tourism Studies and Earth Sciences from travelling to Seattle as expected.

    Instead, he virtually taught a fourth-year course in Arctic Landscape Change and Detection, conducted workshops for teachers and engaged in events hosted by the World Affairs Council, including a fireside chat with Chief Tizya-Tramm of the Vuntut Gwitchin Government through winter 2021.

    Earlier this spring, he was finally able to load his truck with his bikes and some field equipment and head west for his required in-person residency at the University of Washington.

    In spite of a hectic three-month schedule, Turner says the trip has created opportunities to meet up and collaborate with colleagues, sometimes in unexpected ways.

    In May, he travelled to Fairbanks, Alaska, for a meeting of NASA’s Arctic Boreal Vulnerability Experiment (ABoVE) Science Team. As a research affiliate of that program, he advises on airborne data acquisition and suggests key flyover locations from his main research site in Old Crow.

    “Being an affiliate of NASA ABoVE, I can help guide where they fly in northern Yukon and then utilize the data they collect within my research program, as can many others,” says Turner. “We also learn the latest on some of the cool things that colleagues are doing with the data to assess landscape conditions across the north, as well as share our own findings.”

    He attended a meeting of the International Circumpolar Remote Sensing Symposium in Fairbanks, which attracted top scholars from around the world, and was also involved in fieldwork being done by colleagues from University of Alaska, Fairbanks and the NASA Jet Propulsion Lab.

    “I was able to use some equipment I brought with me because I didn’t want it sitting in the truck at the airport while I travelled,” Turner says. “When I took it out for a little bit of show and tell, they invited me to visit one of their research sites to try it out.”

    Upon his return to Seattle, the University of Washington hosted Turner, Tram Nguyen, the 2021-22 Fulbright Canada Chair in Arctic Studies, and others for a roundtable discussion in late May on “Holistic Approaches to Health and Wellbeing in Arctic Communities and Beyond.”

    In June, Turner flew north again for fieldwork in Old Crow, Yukon. The strict parameters of his VISA required him to travel on specific dates — which can be hard to commit to when research excursions are delayed by Arctic weather.

    Turner counted on Brock Earth Sciences graduate student Michelle Pearce (BSc ’20) and undergraduate student Marley Tessier to help him meet the logistical challenges of the research trip and collaborated with colleagues from Polar Knowledge Canada and Parks Canada, along with local Indigenous community members, including photographer and drone pilot, Caleb Charlie, to collect data. Turner also credits helicopter pilot Ruth Hardy with being able to work wonders in small time frames.

    In addition to gathering water samples and aerial survey photography, Turner also used a LiDAR sensor — “a Ghostbuster-looking sensor that shoots out 300,000 pulses of light per second” — to collect data for fine-grained 3D imaging of the landscape.

    His use of the LiDAR device was of particular interest to a documentary film crew from France and Germany working on a four-part series on climate change, who accompanied the researchers and interviewed Turner in the midst of the data collection.

    Turner has now returned to Seattle for the rest of July to crunch some data and collaborate with colleagues at the University of Washington.

    Though it hasn’t been without its challenges, he says that he has enjoyed the “shake-up” of the Seattle residency and the Fulbright Chair overall. And he looks forward to soon welcoming his family for a quick holiday in a nearby mountain cabin.

    “If I didn’t have the support of my family, this would be impossible,” he says. “My wife, Jen, is amazing, and my two boys have really stepped up to fill in the gaps of getting things done around the house in my absence. Their ability to carry on with me somewhere else for an extended period has made this smooth, but I really miss them.”

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  • Indigenous Research Grant projects to explore critical issues

    Tuesday, June 21, 2022 | By

    TUESDAY, JUNE 21, 2022 | by   |  REPOSTED FROM THE BROCK NEWS

    a wide angle view of Brock University's campus with greenery, buildings and blue skies.

    Brock University’s main campus.

    Affordable housing, impacts of climate change, decolonizing experiential education and boosting health-care delivery will be the focus of projects supported by this year’s Brock University Indigenous Research Grants.

    The Office of the Vice-President, Research and the Office of the Acting Vice-Provost, Indigenous Engagement have announced the 2022 recipients of the grants, which support research or creative activities in any discipline and on any topic that relates to Indigenous Peoples.

    “What is exciting about these research projects is, not only do they engage with Indigenous Peoples in a meaningful way, but they’re also directed at improving the lives of Indigenous people,” says Acting Vice-Provost, Indigenous Engagement Robyn Bourgeois.

    The recipients are:

    • Maureen Connolly, Professor of Kinesiology, Faculty of Applied Health Sciences, “Decolonizing experiential learning on the Brock University campus: A case study”
    • Liam Midzain-Gobin, Assistant Professor of Political Science, Faculty of Social Sciences, “Indigenous Affordable Housing in Niagara”
    • Constance Schumacher, Assistant Professor of Nursing, Faculty of Applied Health Sciences, “Defining a Good Life: Community Partnerships and interRAI Data”
    • Kevin Turner, Associate Professor of Geography and Tourism Studies, Faculty of Social Sciences, “The sky is the limit for community monitoring of climate change impacts in Old Crow, Yukon”

    The areas of study are dealing with critical issues, says Bourgeois. Accessing affordable housing, documenting the impacts of climate change, decolonizing experiential education and boosting the delivery of health care are areas of concern expressed by various communities, she says.

    “What an honour to be able to support these research projects,” says Bourgeois.

    By facilitating Indigenous-centred research, the Indigenous Research Grants program is a tangible way Brock University is advancing principles articulated in the Brock Institutional Strategic Plan, says Vice-President, Research Tim Kenyon.

    “These projects will contribute knowledge, understanding and partnerships that advance scholarship and have meaningful impact, in keeping with values of reconciliation and decolonization,” he says.

    Launched last year, the Indigenous Research Grants program aims to achieve several goals:

    • Supporting Indigenous researchers and Indigenous-focused research at Brock University.
    • Enabling researchers to hire students at any level to participate in their project (with preference toward students who self-identify as First Nations, Inuit, Métis, and/or another Indigenous group.
    • Supporting and advancing interest and expertise in Indigenous research areas.

    The grant of up to $7,500 aims to help researchers develop their research programs and creative activities so they can apply to external granting agencies such as the Social Sciences and Humanities Research Council of Canada, the Natural Sciences and Engineering Research Council of Canada, and the Canadian Institutes of Health Research for funding, among others.

    Research and creative activities led by, or in partnership with, First Nations, Inuit and Métis Peoples are given priority, although research proposals involving Indigenous Peoples located around the world are also welcome.

    Four faculty also received Indigenous Research Grants last year, with the projects in various stages of research:

    Applications are accepted on a continuous basis. Brock faculty wishing to apply should visit the Indigenous Research Grant page of the Research Services site (login required). For more information, contact Karen Espiritu, Acting Manager, Sponsored Research and Internal Programs.

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  • New research finds evidence of climate-driven changes to northern lakes

    Tuesday, December 07, 2021 | By

    FROM THE BROCK NEWS | TUESDAY, DECEMBER 07, 2021 | by 

    Old Crow Flats, Yukon is showing signs of increased rainfall, according to new research from Kevin Turner in Brock’s Department of Geography and Tourism Studies. (Photo courtesy of Kevin Turner)

    Across the Old Crow Flats in the northern Yukon, lakes are telling a story of climate-driven change.

    The traditional territory of the Vuntut Gwitchin First Nation (VGFN), the Old Crow Flats is recognized as a Ramsar Wetland of International Importance thanks to its more than 8,000 thermokarst lakes (up to 15 square kilometres) and ponds. Thermokarst lakes are formed by thawed permafrost and can be prone to drainage if they expand into low-lying areas.

    Kevin Turner, an Associate Professor in Brock’s Department of Geography and Tourism Studies and Fulbright Canada Research Chair in Arctic Studies at the University of Washington, has studied the area since 2007, and he says that warmer temperatures, longer summers and more rain are “priming this important landscape for continued climate-driven landscape change.”

    In a new paper with Lauren A. MacDonald, who was a post-doctoral research fellow at Brock in fall 2020, as well as researchers from Wilfrid Laurier University, University of Waterloo and Parks Canada, Turner and his team share an analysis of water samples suggesting significant trends toward increased rainfall in the area, which could affect drainage in the shallow lakes and cause changes to soil stability along shorelines.

    The research, conducted under the direction of the Vuntut Gwitchin Government and the North Yukon Renewable Resources Council, saw sampling take place from 14 lakes in the Old Crow Flats two to three times per year from 2007 to 2019.

    Kevin Turner collects water samples for analysis from a thermokarst lake in Old Crow Flats. (Photo courtesy of Luke Gray)

    The samples produced a 13-year record that the research team has analyzed using water isotope tracers to distinguish between input sources, such as rainfall and snow melt, and also to track water losses due to evaporation.

    “There is more than meets the eye with these results, as they represent a status indicator of the increasing vulnerability of this area to drastic change,” says Turner. “For example, permafrost, which holds the landscape intact, degrades more during warmer and wetter conditions, which can lead to more shoreline slumping and rapid drainage of lakes into the river network.”

    These changes to the landscape can disrupt ecosystems, affecting plants and wildlife and interfering with traditional ways of life — a trend already recognized by the VGFN.

    “Findings complement the traditional knowledge of the VGFN, who have observed changes in climate and landscape characteristics during recent decades and have recently declared a climate emergency,” says Turner.

    “Isotopic evidence of increasing water abundance and lake hydrological change in Old Crow Flats, Yukon, Canada” was published in Environmental Research Letters in late November. Turner says that its findings demonstrate why collaboration and co-operation in research is so important.

    “This research showcases the value of innovative and collaborative long-term monitoring programs in these important and remote areas of the North where the impacts of climate change are heightened,” he says.

    STORY REPOSTED FROM THE BROCK NEWS

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  • New paper by Kevin Turner “Isotopic evidence of increasing water abundance and lake hydrological change in Old Crow Flats, Yukon, Canada”

    Monday, November 22, 2021 | By

    A new paper titled, “Isotopic evidence of increasing water abundance and lake hydrological change in Old Crow Flats, Yukon, Canada” co-authored by GeoTour Associate Professor, Dr. Kevin Turner, was recently published in Environmental Research Letters.

    Abstract:
    Lake-rich northern permafrost landscapes are sensitive to changing climate conditions, but ability to track real-time and potentially multiple hydrological responses (e.g. lake expansion, drawdown, drainage) is challenging due to absence of long-term, sustainable monitoring programs in these remote locations. Old Crow Flats (OCF), Yukon, is a Ramsar Wetland of International Importance where concerns about low water levels and their consequences for wildlife habitat and traditional ways of life prompted multidisciplinary studies during the International Polar Year (2007–2008) and led to the establishment of an aquatic ecosystem monitoring program. Here, we report water isotope data from 14 representative thermokarst lakes in OCF, the foundation of the monitoring program, and time-series of derived metrics including the isotope composition of input waters and evaporation-to-inflow ratios for a 13 year period (2007–2019). Although the lakes spanned multiple hydrological categories (i.e. rainfall-, snowmelt- and evaporation-dominated) based on initial surveys, well-defined trends from application of generalized additive models and meteorological records reveal that lakes have become increasingly influenced by rainfall, and potentially waters from thawing permafrost. These sources of input have led to more positive lake water balances. Given the documented role of rainfall in causing thermokarst lake drainage events in OCF and elsewhere, we anticipate increased vulnerability of lateral water export from OCF. This study demonstrates the value of long-term isotope-based monitoring programs for identifying hydrological consequences of climate change in lake-rich permafrost landscapes.

    Reference:
    MacDonald, L.A., Turner, K.W., McDonald, I., Kay, M.L., Hall, R.I., and Wolfe, B.B. (2021). Isotopic evidence of increasing water abundance and lake hydrological change in Old Crow Flats, Yukon, Canada. Environmental Research Letters, 16(12): online.

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  • Brock prof to talk climate change with Chief of Vuntut Gwitchin Government

    Thursday, February 04, 2021 | By

    FROM THE BROCK NEWS | THURSDAY, FEBRUARY 04, 2021 | by

    Kevin Turner, Associate Professor in the Department of Geography and Tourism Studies. (Photo courtesy of Daniel Hughes)

    Residents of the Vuntut Gwitchin First Nation in Old Crow, Yukon are living on the frontline of climate change, witnessing dramatic landscape changes in the Arctic due to rising temperatures.

    Under the leadership of Dana Tizya-Tramm, Chief of the Vuntut Gwitchin Government, Yukon was the first Indigenous community to draft a climate change emergency declaration, Yeendoo Diinehdoo Ji’heezrit Nits’oo Ts’o’ Nan He’aa (or After Our Time, How Will the World Be?) in 2019.

    Brock University Associate Professor in Geography and Tourism Studies Kevin Turner is very familiar with the dramatic response of the landscape to climate change on the traditional territory of the Vuntut Gwitchin First Nation.

    Researching the area of Old Crow, Yukon, for over a decade, he continues to monitor landscape changes including landslides, vegetation change, lake drainage and fire. His research integrates chemical analyses of water and sediment to evaluate impacts of changing landscape features on lakes and rivers.

    Turner, who is Fulbright Canada Research Chair in Arctic Studies at the University of Washington, will be sitting down with Chief Tizya-Tramm for a “fireside chat” hosted by the World Affairs Council at a virtual public lecture Tuesday, Feb. 9 from 7 to 8 p.m.

    Turner and Tizya-Tramm will discuss emerging issues and priorities identified by the Vuntut Gwitchin First Nation in the face of global challenges.

    Diverse topics will include efforts to conserve the Porcupine Caribou Herd, adjustments during a pandemic, and pathways for unifying traditional insight of changing climate and landscapes with ongoing science-based monitoring approaches.

    “I’m looking forward to it, and in particular discussions of bringing together science-based research and traditional knowledge for the benefits of those most influenced by climate change,” says Turner.

    For more information and to register, click here.

    FROM THE BROCK NEWS

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  • New research uses leading-edge methods to track a retrogressive thaw slump in Old Crow Flats, Yukon

    Friday, January 08, 2021 | By

    Remote sensing graphics from research paper showing research location in Old Crow Flats, Yukon

    A new paper authored by Geography and Tourism Studies Associate Professor, Dr. Kevin Turner, and Geography alumni Michelle Pearce and Daniel Hughes titled “Detailed Characterization and Monitoring of a Retrogressive Thaw Slump from Remotely Piloted Aircraft Systems and Identifying Associated Influence on Carbon and Nitrogen Export” has been published in Remote Sensing. This paper is open-access and available to download here.

    Abstract:
    Ice-rich permafrost landscapes are sensitive to ongoing changes in climate. Permafrost retrogressive thaw slumps (RTSs) represent one of the more abrupt and prolonged disturbances, which occur along Arctic river and lake shorelines. These features impact local travel and infrastructure, and there are many questions regarding associated impacts on biogeochemical cycling. Predicting the duration and magnitude of impacts requires that we enhance our knowledge of RTS geomorphological drivers and rates of change. Here we demonstrate the utility of remotely piloted aircraft systems (RPAS) for documenting the volumetric change, associated drivers and potential impacts of the largest active RTS along the Old Crow River in Old Crow Flats, Yukon, Canada. RPAS surveys revealed that 29,174 m3 of sediment was exported during the initial evacuation in June 2016 and an additional 18,845 m3 continued to be exported until June 2019. More sediment export occurred during the warmer 2017 summer that experienced less cumulative rainfall than summer 2018. However, several rain events during 2017 were of higher intensity than during 2018. Overall mean soil organic carbon (SOC) and total nitrogen (TN) within sampled thaw slump sediment was 1.36% and 0.11%, respectively. A combination of multispectral, thermal and irradiance (derived from the RPAS digital surface model) data provided detailed classification of thaw slump floor terrain types including raised dry clay lobes, shaded and relatively stable, and low-lying evacuation-prone sediments. Notably, the path of evacuation-prone sediments extended to a series of ice wedges in the northern headwall, where total irradiance was highest. Using thaw slump floor mean SOC and TN values in conjunction with sediment bulk density and thaw slump fill volume, we estimated that 713 t SOC and 58 t TN were exported to the Old Crow River during the three-year study. Findings showcase the utility of high-resolution RPAS datasets for refining our knowledge of thaw slump geomorphology and associated impacts.

    Citation:
    Turner K.W., Pearce M.D., and Hughes D.D. (2021). Detailed Characterization and Monitoring of a Retrogressive Thaw Slump from Remotely Piloted Aircraft Systems and Identifying Associated Influence on Carbon and Nitrogen Export. Remote Sensing, 13(2):171. https://doi.org/10.3390/rs13020171

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  • Brock researcher awarded Fulbright Canada Research Chair

    Monday, July 13, 2020 | By

    FROM THE BROCK NEWS | MONDAY, JULY 13, 2020 | by

    Kevin Turner, Associate Professor in the Department of Geography and Tourism Studies, has been chosen for the Fulbright Canada Research Chair in Arctic Studies at the University of Washington in 2021. (Photo credit: Daniel Hughes.)

    Kevin Turner, Associate Professor in the Department of Geography and Tourism Studies, has been awarded a Fulbright Canada Research Chair in Arctic Studies at the University of Washington.

    Next winter, Turner — who is also cross-appointed to the Department of Earth Sciences, an Associate Member of the Department of Biology and a Co-Founder of the Water and Environment Lab at Brock — is set to spend six months teaching and researching the impacts of climate change on northern landscapes, lakes, rivers and wetlands.

    “As land and water adjust to changes in climate, we are presented with many questions of urgent global concern, particularly to northern stakeholders,” says Turner. “Changing landscape components, such as permafrost thaw, will influence global carbon cycles and climate-warming greenhouse gases. This is a far-reaching concern.”

    The Fulbright Canada Research Chair in Arctic Studies recognizes Associate Professor Kevin Turner’s ongoing work in mapping Arctic lake and river responses to landscape disturbances caused by the changing climate, as shown in this photo he captured of a landslide due to thawing permafrost.

    Turner notes that there are also local concerns, including how landscape disturbance such as fire, landslides and lake drainage can affect water quality, ecology, infrastructure and travel. To address some of these issues, he will use the research component of the Chair position to “take inventory of the landscape changes and identify how they influence the hydrology and chemistry of lakes, rivers and wetlands.”

    “The research aims to enhance our knowledge of climate change impacts and feedbacks,” says Turner, who has been conducting fieldwork in northern Yukon for 14 years. “We do this by identifying linkages among landscape changes and lake and river biogeochemistry across the ecologically and culturally important landscapes of the Yukon River Basin.”

    The Fulbright Canada Research Chair also involves teaching for the University of Washington’s minor in Arctic Studies. Turner plans to share with students both remote sensing and field-based techniques for collecting landscape data, as well as teaching students how to analyze, synthesize and share their findings with broad audiences.

    Turner says he was honoured to be selected for the Fulbright Canada Research Chair.

    “There are several colleagues I look up to who have received it in the past,” he says. “I am grateful that I have this opportunity to extend my research program and collaborations across borders.”

    Turner is attracted to the University of Washington for several reasons, not the least of which is the chance to work more closely with colleagues whom he has met during his affiliation with the National Aeronautics and Space Administration’s (NASA) Arctic-Boreal Monitoring Experiment.

    He also notes that the Henry M. Jackson School of International Studies, where the position will be homed, is a “leader in advancing the understanding of and engagement in world issues.”

    “Several researchers and dignitaries from Yukon participate at their various forums, including Dana Tizya-Tramm, Chief of the Vuntut Gwitchin First Nation (VGFN; Old Crow, Yukon), who discussed impacts of climate change on Indigenous communities and their resilience during a meeting of the World Affairs Council,” says Turner. “The priorities of my research program have been guided by the vast knowledge that the VGFN have of their traditional territory and the observations they have made over generations.”

    Turner also has personal reasons to be excited about relocating to Seattle for the duration of the position.

    “As a past varsity rower, I’m interested in seeing where that 1936 crew came from on their way to gold in Germany,” Turner admits. “I should also mention that I’m a big fan of several musical artists who came from Seattle — top of the list would be Jimi Hendrix.”

    However, the ongoing COVID-19 pandemic may interfere with Turner’s plans. The position is set to begin in January 2021, but a few pieces need to fall into place before then.

    “We are currently living in a world of virtual-communications and we are unsure of how this will change by the end of the year,” says Turner, adding that international visas were suspended by the U.S. Department of State until the end of 2020. “Fulbright is currently looking into these issues and will provide updates as they learn more. I have hope that things will change for the better as the new year approaches.”

    Turner also points out that “climate change will not pause for us, and there is a lot within that realm that we need to learn.”

    “Arctic and subarctic regions are undergoing climate warming at a rate twice above the global average, and changes in precipitation patterns occurring — less snow and more rain, for example — are having major impacts on these landscapes,” says Turner. “The processes that cause permafrost degradation are often triggered by warm and wet conditions, and since about a third of the world’s carbon is locked in permafrost, this has complex ramifications for the rest of the world.”

    STORY FROM THE BROCK NEWS

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  • New research by geography alumnus looks at fire history in southwest Yukon Territory

    Tuesday, December 04, 2018 | By

    Student in forest taking a tree core sample

    Tyler Prince taking a tree core sample in southwest Yukon Territory. Photo by Kevin Turner.

    New research by Tyler Prince (Brock Geography and Master of Sustainability alumnus), Michael Pisaric, and Kevin Turner was published this week in Frontiers in Ecology and Evolution. Read more below.

    Abstract:

    Previous research suggests climate warming during the current century is likely to lead to an increase in the frequency and severity of wildfire. Recent wildfire seasons in northern Canada generally support these studies, with some of the worst fire seasons on record occurring during the past decade. While we can readily track the spatial and temporal distribution of these events during recent decades using satellite-derived data, historical records of past fire activity are relatively short. Proxy records of past fire activity are needed to fully understand how fire regimes may be shifting in response to changing climatic conditions. A high-resolution fire record, dating back to the early-Holocene, has been reconstructed using a 512-cm sediment core collected from a small lake in southwest Yukon Territory, Canada. Macroscopic charcoal was counted throughout the core at contiguous 0.5-cm intervals. The core was also analyzed for loss-on-ignition and magnetic susceptibility. Fossil pollen preserved in the lake sediment was analyzed to determine vegetation change throughout the Holocene. Macroscopic charcoal analysis indicates an active fire history throughout the record, with 90 fires occurring throughout the Holocene. CharAnalysis indicates an average signal to noise index of 6.2, suggesting the peaks are significant and detectable from the slowly varying background level. Results suggest the fire regime in this region responds to both top-down (climate) and bottom-up (vegetation) factors. Fire return intervals changed in response to shifts in precipitation and temperature as well as the expansion of lodgepole pine into the region. The shifts in precipitation and temperature were attributed to the oscillation of the Aleutian Low pressure system and fluctuations in climate associated with the Medieval Climate Anomaly and the Little Ice Age.

    Access the full paper online.

    Prince, T., Pisaric, M., and Turner, K. (2018). Postglacial reconstruction of fire history using sedimentary charcoal and pollen from a small lake in southwest Yukon Territory, Canada. Frontiers in Ecology and Evolution, online.

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