B122
Understanding atmospheric nitrogen exchange in coastal and estuarine ecosystems
Session ID#: 81815
Session Description:
Nitrogen dispersed through atmospheric transport, transformation, and deposition contributes to environmental changes in sensitive ecosystems like estuaries. Coastal wetlands, such as salt marshes, mangroves, and seagrasses, which provide an optimum natural environment for carbon sequestration, are not immune to the effects of nitrogen pollution. Anthropogenic activities are known to alter the structure and function of these ecosystems, further leading to their rapid loss and compiling the effect of global environmental change. The evaluation of atmospheric nitrogen exchange over coastal ecosystems requires integrated measurements and modeling to advance our process-level understanding of coastal ecosystem interactions with atmosphere. This session seeks presentations on measurement techniques and modelling approaches allowing the evaluation of atmospheric nitrogen concentrations, ecosystem-atmosphere fluxes, and their impact on coastal and estuarine ecosystems.
Index Terms:
0426 Biosphere/atmosphere interactions [BIOGEOSCIENCES]
Primary Convener: Nebila Lichiheb, NOAA Oak Ridge, Oak Ridge, TN, United States; NOAA ATDD, Oak Ridge, TN, United States
Conveners: LaToya Myles, NOAA ATDD, Oak Ridge, TN, United States, John T Walker, United States Environmental Protection Agency, Office of Research and Development, Research Triangle Park, NC, United States and Kari A St.Laurent, Delaware National Estuarine Research Reserve, Delaware Department of Natural Resources and Environmental Control, Dover, DE, United States
Primary Liaison: Nebila Lichiheb, NOAA ATDD, Oak Ridge, TN, United States; NOAA Oak Ridge, Oak Ridge, TN, United States
Quantifying dry deposition of ammonia and ammonium to Narragansett Bay using a Relaxed Eddy Accumulation sampling technique (502754)
Emily Joyce1, Sawyer Balint2, Wendell W Walters1, Brian Heikes3, Mark Heuer4, LaToya Myles5 and Meredith Galanter Hastings1, (1)Brown University, Department of Earth, Environmental and Planetary Sciences, and Institute at Brown for Environment and Society, Providence, RI, United States, (2)Brown University, Institute at Brown for Environment and Society, Providence, RI, United States, (3)URI GSO, Narragansett, RI, United States, (4)NOAA/ARL/ATDD, Oak Ridge, TN, United States, (5)NOAA ATDD, Oak Ridge, TN, United States
Atmospheric ammonia measurements over a coastal salt marsh ecosystem along the Mid-Atlantic U.S. (516585)
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, TN, United States, Bruce Hicks, Metcorps, Norris, TN, United States, Rick D Saylor, NOAA Air Resources Laboratory, Oak Ridge, TN, United States, Rodrigo Vargas, University of Delaware, Newark, DE, United States, Alma Vazquez Lule, University of Delaware, Plant and Soil Sciences, Newark, DE, United States and Kari A St.Laurent, Delaware National Estuarine Research Reserve, Delaware Department of Natural Resources and Environmental Control, Dover, DE, United States
Estimation of Long-Term Changes of Seagrass Habitat in the Korean Coastal Waters Using Multi-Remotely Sensed Data (531982)
Keunyong Kim, Korea Institute of Ocean Science & Technology, Busan, South Korea, Jong-Kuk Choi, KIOST Korea Institute of Ocean Science and Technology, Korea Ocean Satellite Center, Busan, South Korea and Joo-Hyung Ryu, KIOST Korea Institute of Ocean Science and Technology, Busan, South Korea
Investigation of NH3 Fluxes over a Flooded Rice Paddy in India (Invited) (584623)
Marsailidh M Twigg1, Dibyendu Chatterjee2, Celine Decuq3, Matthew Jones4, Nicholas Cowan5, Julia Drewer6, Benjamin Loubet7, Erwan Personne8, Alain Fortineau3, Chandra Varunesh7, Renu Singh9, Priyanka Meena9, Himanshu Pathak10 and Mark A Sutton5, (1)Centre for Ecology and Hydrology, Edinburgh, United Kingdom, (2)ICAR- National Rice Research Institute, Cuttack, India, (3)INRA Institut National de la Recherche Agronomique, Paris, France, (4)Centre for Ecology and Hydrology, Penicuik, United Kingdom, (5)NERC Natural Environment Research Council, Swindon, United Kingdom, (6)Centre for Ecology & Hydrology, Edinburgh, United Kingdom, (7)INRA Institut National de la Recherche Agronomique, Paris Cedex 07, France, (8)AgroParisTech, Paris, France, (9)Indian Agricultural Research Institute, New Delhi, India, (10)ICAR-National Rice Research Institute, Cuttack, India
