Dr. Sara Helen Knox, Assistant Professor 
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I am broadly interested in the impacts of climate variability and land-­use change on land-­atmosphere exchanges of water, energy, and trace gases. I also seek to understand how ecosystem responses to global change can feedback to slow or accelerate future climate change. My research and training is in micrometeorology, hydrology, and ecosystem ecology. I focus on biosphere-­atmosphere interactions in a variety of climates and ecosystems.

University of California, Berkeley, PhD
Carleton University, MSc
McGill University, BSc

Contact information
Address: Department of Geography, University of British Columbia, 1984 West Mall, Vancouver, BC V6T 1Z2

Rick Ketler, Project Manager (Geography)
Currently Research Projects Manager for UBC Geography Physical Labs.  I have designed and installed research sites in terrain ranging from temperate bogs to arctic tundra.  I primarily support professors, PDF’s and grad students with physical scientific measurements in the field and in the lab.

B.Sc. Physics Co-op University of Victoria, B.C.

Contact information
Address: PCMH B1100


Zoran Nesic, Senior Research Engineer

I am responsible for management of numerous research and equipment design projects for various faculties and departments at UBC. I design eddy covariance and soil respiration systems that are used at various North American universities as well as by other research institutions. My main research interests are (1) the design of automated measurement systems for long-term environmental measurements and (2) the standardization of measurement and data processing procedures to ensure high quality and reproducibility of research results.

B.Sc. in Electrical Engineering, University of Belgrade
M.A.Sc. in Electrical Engineering, UBC

Current Students and Postdocs

Dr. Sung-Ching (Nick) Lee, Postdoctoral Scholar
I received my PhD in Geography from University of British Columbia in 2020. I am a broadly trained Biometeorologist studying the underlying processes of ecosystem-atmosphere interactions for natural and managed ecosystems. My main research interest is to investigate the responses of ecosystem-atmosphere carbon and water fluxes to environmental controls in various forest and wetland ecosystems using micrometeorological methods, including flux measurements by the eddy covariance technique, closed-chamber measurements, and stable isotopes approach. The goal of my research is to understand, simulate, and help improve the resilience of terrestrial ecosystems under the impacts of changing climate.




Tzu-Yi, Lu, Ph.D. student

I received my MS in Geography from National Taiwan University in 2017. I am interested in understanding the response of the wetland ecosystem to climate change, especially in quantifying the net exchange of carbon. My previous research investigated the relationship between environmental controls and CO2 flux in low-latitude wetland ecosystems, applying an Artificial Neural Network technique to simulate the variance of carbon exchange by meteorological variables.





Katrina Poppe, Ph.D. student

I earned an MS in Environmental Science from Western Washington University in 2016 and continued at WWU as a Research Associate for several years. My previous research has focused primarily on blue carbon, studying soil carbon sequestration rates in Pacific Northwest estuaries and in United Arab Emirates mangroves, in addition to monitoring and modeling vegetation and sediment dynamics in relation to estuary restoration and sea level rise. I am currently interested in studying greenhouse gas fluxes in Pacific Northwest tidal wetlands – particularly how they respond to ecosystem restoration and climate change – to ultimately better understand the value of tidal wetland management actions as natural climate solutions.




Sarah Russell, M.Sc. student
I received a BS in Biological Sciences from Wellesley College in 2017, then worked as an ecosystem ecology field technician and research assistant before moving to Vancouver. I am interested in land-atmosphere carbon dynamics and am particularly interested in quantifying the terrestrial carbon sink. My research at UBC involves modeling greenhouse gas fluxes from restored tidal wetlands in the Sacramento-San Joaquin River Delta.





Tin Satriawan, M.Sc. student

I received my BSc in Biology from Bandung Institute of Technology in 2019 after finishing my thesis about the relationship between land use and land surface temperature. After I graduated, I was involved in a project that developed a tool for modeling regional carbon emission. I am interested in understanding land-atmosphere processes, particularly how changes in the terrestrial ecosystem affect greenhouse gas fluxes.





Darian Ng, M.Sc. student
I received a BSc in Atmospheric Science from the University of British Columbia in 2021. I have spent research terms at UBC studying effects of climate change on intertidal ecology, cloud microphysics and precipitation modelling, and methane emission hotspots in wetlands. I’m interested in investigating environmental drivers of land-atmosphere greenhouse gas exchange and how they might respond to changing climate conditions. During my MSc, I plan to further examine the controls of wetland methane emissions and better understand how we can effectively manage wetlands as natural climate solutions.






Hehan (Zoe) Zhang

I am currently an undergraduate student majoring in Environmental Science and minoring in Economics at the University of British Columbia. My thesis is studying the effects of postfire recovery on greenhouse gas fluxes in a peatland using chamber measurements. I am particularly interested in investigating land-atmosphere exchanges of greenhouse gas fluxes in disturbed wetland ecosystems and assessing the ecological response of the wetlands after different management practices. I am motivated to obtain more training on climate science topics as a graduate student and explore the effective management practices on wetland restoration.





Lab Alumni

Marion Nyberg, M.Sc. student
I received my Bachelor of Science with honours in 2018 from the University of Tasmania where I majored in plant ecology and the effects of warming on carbon cycle dynamics in a native grassland. During my time at UTAS I spent 3 summers working with the Plant Ecology Research Group in various experiments, field and lab based, investigating how ecosystem functioning responds to a changing climate. I’m particularly interested in understanding how climate change and other anthropogenic impacts such as land-use change are affecting carbon cycling and greenhouse gas fluxes in terrestrial ecosystems.




Aylin Barreras-Apodaca, Visiting international M.Sc. student
I received a BS in Environmental Sciences and Engineering from the Instituto Tecnológico de Sonora in 2018, where my thesis investigated the physical controls of CO2 exchange between the atmosphere and a semiarid mangrove forest. In my Master’s, in am working on carbon dynamics in a semiarid seagrass ecosystem along the pacific coast of Mexico. I am interested in understanding the physical controls on ecosystem-atmosphere carbon and water dynamics, and I am particularly interested in  blue carbon ecosystems.





Nicole Choi, B.Sc. student
I received a BSc in Physics from the University of British Columbia and since then, have returned to obtain a Diploma in Meteorology. My directed studies and thesis work focus on quantifying the energy balance closure using eddy covariance measurements. My areas of interest are the land-atmosphere interactions, numerical weather predictions and air quality meteorology.






Cristina Mace, B.Sc. student
Cristina studies geographical sciences, with a specific interest in ecosystem’s green house gas exchange. Her directed studies work will concentrate on comparing restored and undisturbed peatland ecosystems. This year, she has worked with the UBC Arctic Ecology research group as a mentee. Cristina hopes to continue to study ecosystem restoration and green house gases as a graduate student. She has previously completed a B.A. in Theater and Film.