A5035795409- Marine and coastal ecosystems
- Methane Hydrates and Related Phenomena
- Marine Biology and Ecology Research
- Arctic and Antarctic ice dynamics
- Marine and fisheries research
- Oceanographic and Atmospheric Processes
- Climate change and permafrost
- Atmospheric and Environmental Gas Dynamics
- Isotope Analysis in Ecology
- earthquake and tectonic studies
- Landslides and related hazards
- Underwater Acoustics Research
- Earthquake Detection and Analysis
Fisheries and Oceans Canada
2022-2025
Bedford Institute of Oceanography
2021-2023
University of Victoria
2015-2019
The Gorkha earthquake (magnitude 7.8) on 25 April 2015 and later aftershocks struck South Asia, killing ~9000 people damaging a large region. Supported by campaign of responsive satellite data acquisitions over the disaster zone, our team undertook image survey earthquakes' induced geohazards in Nepal China an assessment geomorphic, tectonic, lithologic controls quake-induced landslides. Timely analysis communication aided response recovery informed decision-makers. We mapped 4312 coseismic...
A major limitation for remote sensing analyses of oceanographic variables is loss spatial data. The Data INterpolating Empirical Orthogonal Functions (DINEOF) method has demonstrated effectiveness filling gaps in datasets, making them more easily implemented further applications. However, the and temporal coverage input image dataset can heavily impact outcomes using this and, thus, metrics derived from these such as phytoplankton bloom phenology. In study, we used a three-year time series...
Abstract G̱andaawuu.ngaay Xyangs ( Juan Perez Sound ) is a fjord‐like area and ecological hotpot on the east coast of Haida Gwaii, British Columbia, within Gwaii Haanas National Park Reserve, Marine Conservation Area Heritage Site. A collaboration among Council Nation, Parks Canada, Fisheries Oceans Canada has been ongoing since 2017 to advance understanding oceanography marine ecology around Haanas. Oceanographic data collected year‐round by subsurface moorings annually research cruises...
Satellite observations are an integral component of long-term Arctic Ocean monitoring and help identifying changes resulting from climate warming. A Self-Organizing Maps (SOM) approach was applied to four-day composite satellite images the Eastern Beaufort Sea (EBS) acquired by MODerate resolution Imaging Spectroradiometer over period 2003–2019. Using sea-surface temperature (SST), suspended particulate matter concentration (SPM) chlorophyll-a (Chl-a) as input EBS partitioned into six...
Abstract. Climate warming and related drivers of soil thermal change in the Arctic are expected to modify distribution dynamics carbon contained perennially frozen grounds. Thawing permafrost Mackenzie River watershed northwestern Canada, coupled with increases river discharge coastal erosion, triggers release terrestrial organic matter (OMt) from largest drainage basin North America into Ocean. While this process is ongoing its rate accelerating, fate newly mobilized as it transits through...
Abstract The Bay of Fundy is a highly productive ecosystem within the Northwest Atlantic where extreme tides and strong currents result in large gradient sediment concentrations across along bay. We processed daily satellite data from MODerate resolution Imaging Spectroradiometer (MODIS) on Aqua 2003 to 2021 at 300-m understand quantify spatial temporal trends chlorophyll-a concentration (chl-a, measure phytoplankton biomass), suspended particulate matter (SPM) surface waters. To account for...
Abstract. Elevated surface chlorophyll-a (chl-a) concentration ([chl-a]), an index of phytoplankton biomass, has been previously observed and documented by remote sensing in the waters to southwest Sable Island (SI) on Scotian Shelf eastern Canada. Here, we present analysis this phenomenon using a 21-year time series satellite-derived [chl-a], paired with information particle backscattering coefficient at 443 nm (bbp(443), proxy for suspension) detritus/gelbstoff absorption (adg(443),...
Abstract. Climate warming and related drivers of soil thermal change in the Arctic are expected to modify distribution dynamics carbon contained perennially frozen grounds. Thawing permafrost Mackenzie Delta region northwestern Canada, coupled with increases river discharge coastal erosion, trigger release terrestrial organic matter (OMt) from largest drainage basin North America into Ocean. While this process is ongoing, well-established, its rate accelerating, fate newly-mobilized matter,...
Abstract. Elevated surface chlorophyll-a concentration, an index of phytoplankton biomass, has been previously observed and documented by remote sensing in the waters to southwest Sable Island (SI) on Scotian Shelf eastern Canada. Here, we present a detailed analysis this phenomenon using 20-year time series satellite-derived concentration (chl-a), paired with information particle backscattering coefficient at 443 nm (bbp(443)) detritus/gelbstoff absorption (adg(443) ) attempt explain...