A manuscript I’ve been working on for a good chunk of time now, entitled “Ecosystem fluxes of hydrogen: a comparison of flux-gradient methods,” was just published to Atmospheric Measurement Techniques Discussions (view paper online). Our goal was to present a detailed experimental approach for measuring ecosystem fluxes of H2 and to test different so-called “flux-gradient methods” for calculating the H2 fluxes. Some common trace gas flux methods, e.g. eddy covariance, are not available for species like H2 that cannot be measured precisely at high frequencies (<1Hz). We hope this paper will help inform the design of future studies for which flux-gradient methods might be the best option for measuring trace gas fluxes.
In the summer of 2010, I spent six inspiring, challenging, and chaotic weeks at the Marine Biological Laboratory Microbial Diversity Course in Woods Hole, MA. Taking full advantage of the opportunity granted by course directors Steve Zinder and Dan Buckley of Cornell, this budding atmospheric chemist plunged head on into the world of microbiology. I was eager to learn the theory and hands-on methods to study the microbial world, which has such a profound impact on atmospheric composition, and this course gave me a chance to explore my interests in a way not offered anywhere else. Continue reading →