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Anna Karion (Fed)

Physical Scientist

Publications

Underestimation of Thermogenic Methane Emissions in New York City (New York City methane emissions: what are we missing?)

Author(s)
Joseph R. Pitt, Israel Lopez Coto, Anna Karion, Kristian D. Hajny, Jay M. Tomlin, Robert Kaeser, Thilina Jayarathne, Brian H. Stirm, Cody R. Floerchinger, Christopher P. Loughner, Róisín Commane, Conor K. Gately, Lucy R. Hutyra, Kevin R. Gurney, Geoffrey S. Roest, Jianming Liang, Sharon Gourdji, Kimberly Mueller, James Whetstone, Paul B. Shepson
Recent studies have shown that methane emissions are underestimated by inventories in many US urban areas. This has important implications for climate change...
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Data and Software Publications

Observations of carbon dioxide (CO2), methane (CH4), and carbon monoxide (CO) mole fractions from the NIST Northeast Corridor urban testbed

Author(s)
Anna Karion, Elizabeth DiGangi, Steve Prinzivalli, Charlie Draper, Seth Baldelli, Clayton Fain, Bryan Biggs, Michael Stock, Ben Michalak, Peter Salameh, Jooil Kim, William Callahan, James Whetstone
NOTE: please see the latest (March 2025) update at https://doi.org/10.18434/mds2-3765 . This archive is from May 2023. See Updates document for specific major and minor changes. Here we provide hourly

Observations of CO2, CH4, and CO mole fractions from the NIST Northeast Corridor urban testbed

Author(s)
Anna Karion, Steve Prinzivalli, Clayton Fain, Michael Stock, Elizabeth DiGangi, Bryan Biggs, Charlie Draper, Seth Baldelli, Uran Veseshta, Peter Salameh, Kenneth Schuldt, William Callahan, James Whetstone
NOTE: please see the latest (March 2025) update at https://doi.org/10.18434/mds2-3765 . This archive is from November 2021. We have become aware of errors in the inlet heights at multiple sites and

Patents (2018-Present)

Image of an map view with the text "Natural gas extraction east of Platteville Colorado. DCS could monitor over 100 sites from central location. Overlapping fields could ensure complete coverage".

Hub and Spoke System for Detecting and Locating Gas Leaks

NIST Inventors
Greg Rieker , Ian Coddington , Kuldeep Prasad and Anna Karion
A system for detecting gas leaks and determining their location and size. A data gathering portion of the system utilizes a hub and spoke configuration to collect path-integrated spectroscopic data over multiple open paths around an area. A processing portion of the system applies a high-resolution
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Created May 31, 2018, Updated March 16, 2026
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