I am the Data Manager in BBERG working with the team on data management with a particular focus on continuous data streams obtained from our field sites across the NL-BELT and in Nunatsiavut. I am also involved in fieldwork aimed at monitoring headwater stream and hillslope hydrology. My research efforts include modelling work used to predict dissolved organic carbon concentration from in situ spectrophotometers. I really enjoy data analysis and statistics and provide support to the team in these areas.
I first joined BBERG as a undergraduate student research assistant in the winter of 2017, leading to the development of an undergraduate thesis project. This lead to my starting a Masters degree program supervised by Sue Ziegler and working with postdoctoral researchers Allison Myers-Pigg and Alan Roebuck. I obtained my M.Sc. in Environmental Science in 2021. My research focused on the interaction between light absorbance and dissolved organic carbon (DOC). Absorbance has been previously used as a proxy for estimating DOC in water samples; however, due to the varying nature of DOC (e.g. with hydrology, climate, landscape attributes) the relationship between DOC and absorbance is not a universal one. Thus I developed a partial least squares model using turbidity corrected absorbance, runoff, and conductivity and tested this across our study sites. We are now employing this approach to both understand controls on landscape DOC fluxes and inform ways to predict this flux.
My selected publications:
Gaviria Salazar, C., Roebuck, J.A., Myers-Pigg, A.N. and S.E. Ziegler (2023) Self-diagnosis of model suitability for continuous measurements of stream-dissolved organic carbon derived from in-situ UV-visible spectroscopy. Limnology and Oceanography Methods. https://DOI: 10.1002/LOM3.10559.
Roebuck, J.A., Prestegaard, K., Gaviria Salazar, C., Myers-Pigg, A., and S. E. Ziegler (2023) Hydrobiogeochemical controls on the delivery of dissolved organic matter to boreal headwater streams. Water Resource Research, 59, e2022WR033358. http://doi.org/10.1029/2022WR033358
Patrick, M.E., Myers-Pigg, A., Gates, Z.X., Gaviria, C., Morry, A.K, Prestegaard, K. and S.E. Ziegler (2024) Hillslope hydrologic influences on soil carbon content informs climate impacts on boreal forest mineral soil stocks. Revision in review for Geoderma
You can contact me by email at cjg801@mun.ca