September 2021 – Our preprint “Interannual variability in methane and nitrous oxide concentrations and sea-air fluxes across the North American Arctic Ocean (2015–2019)” (Manning et al., 2021) is now available on EarthArXiv (where I serve as a content moderator)! This paper includes over 2000 measurements of methane and nitrous oxide from 13 research cruises and we use the results to characterize the distributions and fluxes of these gases and their variability in time in a rapidly-changing Arctic system. The station map is shown below.

September 2021 – A new paper led by Kun Jia (who completed a MSc at UBC) is published! “Technical note: Effects of iron(II) on fluorescence properties of dissolved organic matter at circumneutral pH.” This paper characterizes how the presence of Fe(II) in groundwater impacts fluorescence spectra and is part of my foray into groundwater research that began during my postdoc.

June 2021 – A new paper led by newly-minted PhD Dr. Robert Izett is published, titled “ΔO2/N2′ as a new tracer of marine net community production: Application and evaluation in the Subarctic Northeast Pacific and Canadian Arctic Ocean.” The paper compares net community production estimates from ΔO2/N2 (measured with an O2 sensor and a total gas pressure sensor and corrected for the different physical properties of O2 and N2) to estimates from the traditional ΔO2/Ar method (measured with a mass spectrometer). You can also check out Robert’s recent papers in L&O Methods and Oceanography that describe the instrumentation and computational method for quantifying ΔO2/N2′.