Dewey’s geoscientific research focuses on the mechanisms that control the timing, distribution, and magnitude of toxic metal concentrations in lakes. He is a professional geoscientist registered with the Nova Scotia Association of Professional Geoscientists and has authored publications in Science of the Total Environment, Environmental Science and Technology: Engineering, the Journal of Paleolimnology, FACETS, Lake and Reservoir Management, and Environmental Pollution.
Collecting a lake sediment core at Pockwock Lake, Nova Scotia.
Geoscience
Collecting a lake sediment core at Pockwock Lake, Nova Scotia.
Geoscience
Recent Posts
Doing Bayesian Lead-210 interpretation
Paleolimnologists have been using the Constant Rate of Supply (CRS) and Constant Initial Concentration (CIC) model to interpret 210Pb …
Visualizing Canadian Climate Normals
I’m an avid Twitter follower of Simon Kuestenmacher (@simongerman600), who is a prolific tweeter of maps (all sorts). The other day I …
Reconstructing a coagulant optimization model using R and Shiny
Inspired by Lindsay Anderson’s suggestion that “somebody code up that Edwards 1997 model”, I successfully avoided proofreading my Ph.D. …
Pourbaix-ish diagrams using PHREEQC and R
A side project of mine recently has been to play with PHREEQC, which is a powerful geochemical modelling platform put out by the USGS. …
Stratigraphic diagrams with tidypaleo & ggplot2
This post covers creating stratigraphic diagrams using ggplot2, highlighting the helpers contained within the tidypaleo package, which …
Publications
(2021).
argodata: An R interface to oceanographic data from the International Argo Program.
Journal of Open Source Software.
(2021).
Application of the paleolimnological method to assess metal contaminant distribution (As, Cu, Pb, Zn) in pulp mill stabilization basin sediments, Nova Scotia, Canada.
Environmental Science and Pollution Research.
(2021).
Evaluating the multidecadal response of historic seawater incursion events and salinity-induced meromixis at Laytons Lake, Nova Scotia, Canada.
Lake and Reservoir Management.
(2019).
Evaluating the utility of elemental measurements obtained from factory-calibrated field-portable X-Ray fluorescence units for aquatic sediments.
Environmental Pollution.
(2018).
Anthropogenic activity in the Halifax region, Nova Scotia, Canada, as recorded by bulk geochemistry of lake sediments.
Lake and Reservoir Management.
(2018).
Using a linked table-based structure to encode self-describing multiparameter spatiotemporal data.
FACETS.
(2017).
A paleolimnological archive of metal sequestration and release in the Cumberland Basin Marshes, Atlantic Canada.
FACETS.
(2017).
Modeling the effect of convex upward sediment deformation and horizontal core sectioning on paleolimnological data.
Journal of Paleolimnology.
(2016).
A geochemical perspective on the impact of development at Alta Lake, British Columbia, Canada.
Journal of Paleolimnology.
