If you are senior graduate student or postdoc interested in joining our group, please consider applying to
- Lamont-Doherty Earth Observatory Postdoctoral Fellowships
- NSF Atmospheric Science Postdoctoral Research Fellowships
Or contact Róisín with an overview of your research interests to discuss proposal ideas. There are no open positions in the group at the moment.
Research Overview
We investigate surface - atmosphere fluxes of greenhouse gases and air pollutants using field measurements, atmospheric trace gas observations and various modeling tools and the ecosystem processes driving these fluxes. Our urban work is hosted on the New York Atmospheric composition and Air Quality (NYAAQ) website. We focus on carbon (CO2 and methane) fluxes for our Arctic tundra and Boreal ecosystems. Our global approach to quantifying carbon fluxes is explained in the CarbonFOX project and more recently through collaborations with the MethaneSAT mission.
Recent News
In October 2023, Roisin was a guest presenter and panelist at the Innovations in Instrumentation for Observations of Methane Emissions in the Arctic online meeting. This was a joint meeting between the Technology Innovation and Application Collaboration Team and the Permafrost Community of Practice of the Interagency Arctic Research Policy Committee (IARPC).
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Slide 1: Setup of instruments and boiler during the tests.
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Slide 2: Crew for the tests. From left to right: Yuwei, Stephen Galvin (BNL), Jake Lindberg (BNL), and Andrew. Not pictured: Roisin
We traveled to Brookhaven National Laboratory for a day of tests on a boiler there. Preliminary results were exciting; stay tuned for more updates!
We are delighted that recent research assistant Andrew Hallward-Driemeier has joined the graduate program in the Columbia University Dept. of Earth and Environmental Sciences and will continue in the group as a graduate student. With his experience running the long-term CO2 and CH4 observation sites around NYC, Andrew will be investigating some of the interesting processes we have seen in the urban area, including the impacts of incomplete combustion.
We joined in the NOAA funded project Fluxes of Reactive Organic Gases in New York (FROG-NY) to measure greenhouse gases at at tower in Mineola, NY during summer 2023. We measured CO2, CO, methane, ethane and N2O at two different heights. Our analysis of this data is being lead by graduate student Yuwei Zhao, with field assistance from Andrew Hallward-Driemeier and Roisin Commane and funding from NYSERDA. We are going back for a winter intensive in Jan/Feb 2024 with FROGSICLE. This heating season intensive will be very interesting for the greenhouse gases but we don't…
Roisin is PI on the CarbonFOX satellite proposal to the NASA Earth System Explorer (ESE). After many years of work, and a particularly intense few weeks in July, she was delighted that the proposal was finally submitted!
Ludda Ludwig received 2nd place in the student awards at the AMS Hydrology Conference in Denver in January 2023. Congratulations Ludda!
She also gave a fantastic oral presentation at the AGU Fall Meeting in Chicago in December. Ludda is on a roll!
Luke Schiferl's recent paper in Biogeosciences was an EGU Highlight. Luke has made the atmospheric tools developed for his North Slope permafrost tundra ecosystem evaluations available on: http://atmoscomp.ldeo.columbia.edu/tvprm
Dandan Wei's ERL paper received a lot of interest from NYC news soon after being published! Kevin Krajick at wrote a great press release that interested many media outlets.
NY1 News joined the group at the CUNY Observatory and Juan Benitez interviewed Dandan, Andrew and Roisin. The video is available here
Winston Choi-Schagrin at the New York Times Metro Desk interviewed Dandan, Roisin and our colleague (and co-PI) Andy Reinmann as we walked around the CUNY Campus. Andy's very photogenic dog Guinevere also featured! The article is available here
We also chatted with more…
