The deadline to submit a session, town hall, or pre-conference workshop proposal for AGU25 has passed. Please search for and review proposed sessions below. Please note this site is frozen as of 4/29/25 and will not reflect any changes to proposals made after this date.


Conveners will be contacted by the AGU25 Program Committee with any requests for mergers or edits to proposals. Conveners will be notified of the acceptance of their proposal in mid-June.


Abstract submissions will also open in mid-June and the deadline for abstract submissions is 30 July, 2025.


Please visit the AGU25 website for more information or please contact AGU with any questions.

Session Proposal: New Perspectives on the Exchange of Reduced Nitrogen Between the Atmosphere, Land, and Water from Remote Sensing, in situ Measurements, and Modeling Approaches (AGU25)

A082
New Perspectives on the Exchange of Reduced Nitrogen Between the Atmosphere, Land, and Water from Remote Sensing, in situ Measurements, and Modeling Approaches

Session ID#: 249474

Session Description:
Reduced nitrogen (ammonia + ammonium) is a vital component of the global nitrogen cycle, with its production and use by humans having important implications for environmental sustainability. Sources of reduced nitrogen are diverse, including anthropogenic activities (e.g. livestock waste, fertilizer) and natural processes (e.g. wildfires). Reduced nitrogen behaves dynamically in the environment, partitioning between different phases and reservoirs. Although an important input to agricultural systems and a critical nutrient source in natural systems, reduced nitrogen can also pollute the air and water. In excess, reduced nitrogen can drive significant ecological changes in aquatic ecosystems, including eutrophication, harmful algal blooms, and disruption of aquatic food webs. This session draws together perspectives on reduced nitrogen from both empirical and modeling perspectives. We welcome submissions using remote sensing and in situ measurements from recent field campaigns, as well as contributions leveraging models to span complexity and spatiotemporal scales.
Co-Sponsor(s):
  • B - Biogeosciences
Index Terms:

0315 Biosphere/atmosphere interactions [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0345 Pollution: urban and regional [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0469 Nitrogen cycling [BIOGEOSCIENCES]
3360 Remote sensing [ATMOSPHERIC PROCESSES]
Primary Convener:  Matthew Davis, Colorado State University, Department of Atmospheric Science, Fort Collins, United States
Conveners:  Kimberley Corwin, Colorado State University, Department of Atmospheric Science, Fort Collins, United States and Lauren Magliozzi, Colorado State University, Natural Resource Ecology Laboratory, Fort Collins, United States; Colorado State University, Department of Atmospheric Science, Fort Collins, United States
 
Analysis of atmospheric ammonia concentrations at a coastal site along the east coast of the USA (1853404)
Nebila Lichiheb, NOAA Oak Ridge, Oak Ridge, TN, United States, Mark Heuer, NOAA/ARL/ATDD, Oak Ridge, TN, United States, LaToya Myles, NOAA ATDD, Oak Ridge, United States, Rick D Saylor, NOAA Air Resources Laboratory, Oak Ridge, TN, United States, Mark Cohen, NOAA Air Resources Laboratory, College Park, United States, Mitchell Rogers, Yale University, Department of Chemical and Environmental Engineering, New Haven, United States and Drew R Gentner, Yale University, Department of Chemical and Environmental Engineering, New Haven, CT, United States
 
Tiered and Machine Learning-Assisted Monitoring for Land-Atmosphere Exchange of Ammonia (Invited) (1862412)
Da Pan, Georgia Institute of Technology Main Campus, School of Civil and Environmental Engineering, Atlanta, United States and Aditya Mukker, Lambert High School, Suwanee, United States
 
Evaluating the Impact of the Bidirectional Exchange of NH3 from the Canadian Great Lakes Using a Modified Version of the GEM-MACH Chemical Transport Model (1873652)
Matthew Davis, Colorado State University, Department of Atmospheric Science, Fort Collins, United States, Jennifer G Murphy, University of Toronto, Department of Chemistry, Toronto, ON, Canada and Michael Sitwell, Environment and Climate Change Canada, Air Quality Research Division, Toronto, ON, Canada
 
Multi-Year Analysis of Wildfire Smoke Impacts on Reduced Nitrogen Across the U.S.: Insights from the 2023 Fire Season (1879701)
Emily Lill1, Madison Shogrin2, Kimberley Corwin1, Ilana Pollack3, Ann Middlebrook4, Alison Piasecki5, Nell Schafer6, Jeff Peischl7, Chelsea E. Stockwell8, Matthew Mitchell Coggon9, Kelvin Bates10, Carsten Warneke4, Owen Cooper4 and Emily V Fischer1, (1)Colorado State University, Department of Atmospheric Science, Fort Collins, United States, (2)Colorado State University, Atmospheric Sciences, Fort Collins, United States, (3)CIRES, University of Colorado Boulder & NOAA Chemical Sciences Laboratory, Boulder, United States, (4)NOAA Chemical Sciences Laboratory, Boulder, United States, (5)USGS Geology, Geophysics, and Geochemistry Science Center, Denver, United States, (6)NOAA, Chemical Science Laboratory, Boulder, United States, (7)CIRES, University of Colorado Boulder & NOAA Global Monitoring Laboratory, Boulder, United States, (8)CU/CIRES; NOAA/CSL, Boulder, United States, (9)National Oceanic and Atmospheric Administration/U.S. Department of Commerce operative Institute for Research in Environmental Sciences/Chemical Sciences Division Boulder 80309 (United States), Chemical Sciences Division, Boulder, United States, (10)University of Colorado Boulder, Department of Mechanical Engineering, Boulder, United States
 
Diagnosing Discrepancies between Satellite-Derived and Bottom-Up Estimates of Ammonia Emissions from Fertilizer Plants (1958296)
Chun Dai1, Xin Zhang1, Dong Liang2, Andrew Elmore1 and Kang Sun3, (1)University of Maryland Center for Environmental Science Appalachian Laboratory, Frostburg, United States, (2)University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, United States, (3)University at Buffalo, Research and Education in Energy, Environment and Water Institute, Buffalo, United States
 
What do observations of ambient ammonia reveal over India? (1961075)
Srinidhi Balasubramanian1, Sneha Chatterjee1, Pranav Chaudhari1, Parth Sanghavi1 and V.S. Vamsi Botlaguduru2, (1)Indian Institute of Technology Bombay, Environmental Science and Engineering, Mumbai, India, (2)Indian Institute of Technology Bombay, Environmental Science and Engineering Department, Mumbai, India
 
Assessing Wildfire Smoke as a Potential Source of Ammonia to High Elevation Lakes and Regions of the U.S. Rocky Mountains (1972487)
Kimberley Corwin1, Lillian Naimie1, Karen Elena Cady-Pereira2, Michael J Iacono2, Lauren Magliozzi1,3, Jill Baron4, Jeffrey Lee Collett Jr1 and Emily Fischer1, (1)Colorado State University, Department of Atmospheric Science, Fort Collins, United States, (2)Atmospheric and Environmental Research (AER), Lexington, United States, (3)Colorado State University, Natural Resource Ecology Laboratory, Fort Collins, United States, (4)US Geological Survey, John Wesley Powell Center for Analysis and Synthesis, Fort Collins, United States
 
Contributions of wildfire smoke and agricultural emissions to changing ammonia across the western US (1974489)
Lillian Naimie1, Kimberley Corwin2, Karen Elena Cady-Pereira3, Michael J Iacono3, Lauren Magliozzi2,4, Jill Baron4, Emily V Fischer2 and Jeffrey Lee Collett Jr2, (1)Colorado State University, Atmospheric Science, Fort Collins, United States, (2)Colorado State University, Department of Atmospheric Science, Fort Collins, United States, (3)Atmospheric and Environmental Research (AER), Lexington, United States, (4)Colorado State University, Natural Resource Ecology Laboratory, Fort Collins, United States
 
Oligotrophication patterns, trends, and drivers across the Contiguous United States (1975872)
Michael Frederick Meyer1, Jill Baron2, Stephanie Hampton3, Dina Leech4, Isabella Oleksy5, Amina Pollard6, Hilary Dugan7, Rachel Pilla8, Tyler King9, Robert Ladwig10, Sapna Sharma11, Jacob A Zwart12, Nicholas J Gubbins13, Jianning Ren14, Matthew Ross13, Simon Topp15, Dr. Jida Wang16 and Iestyn Woolway17, (1)Organization Not Listed, Washington, DC, United States, (2)US Geological Survey, John Wesley Powell Center for Analysis and Synthesis, Fort Collins, United States, (3)Carnegie Institution for Science, Pasadena, United States, (4)Longwood University, Farmville, United States, (5)University of Colorado Boulder, Boulder, United States, (6)Environmental Protection Agency Washington DC, Washington, United States, (7)University of Illinois at Chicago, Chicago, United States, (8)Oak Ridge National Laboratory, Oak Ridge, United States, (9)U.S. Geological Survey, Hydrologic Remote Sensing Branch, Boise, United States, (10)Aarhus University, Department of Ecoscience, Aarhus C, Denmark, (11)York University, Toronto, ON, Canada, (12)USGS Integrated Information Dissemination Division, Data Science Branch, San Francisco, United States, (13)Colorado State University, Ecosystem Science and Sustainability, Fort Collins, United States, (14)National University of Singapore, Singapore, Singapore, (15)Upstream Tech, Chapel Hill, NC, United States, (16)University of Illinois Urbana-Champaign, Geography & Geographic Information Science, Urbana, United States, (17)Bangor University, Bangor, LL59, United Kingdom
 
Spatiotemporal Co-variation of Organic Nitrogen Wet Deposition and Terrestrial Phenology (1980209)
Paola Miramontes Gonzalez, University of New Hampshire Main Campus, Durham, NH, United States, Desneiges Murray, Boston University, Department of Biology, Boston, United States and Adam S Wymore, University of New Hampshire, Department of Natural Resources and the Environment, Durham, United States
 
Ammonia emissions from US Midwest fertilization based on mobile lab and satellite observations (1984924)
Yunpo Li, Hongming Yi, Vladislav I Sevostianov, Ryan J Boyd, Yunseo Choi, James McSpiritt, Lars P Wendt and Mark A Zondlo, Princeton University, Department of Civil and Environmental Engineering, Princeton, United States
See more of: Atmospheric Sciences
<< Previous Session Proposal | Next Session Proposal >>