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Tracking Nitrogen Sources and Transport in the Environment

Feb 7, 10am (Tuesday)  Tracking Nitrogen Sources and Transport in the Environment

Part 1: Water quality impacts of nitrogen in the Columbia River basin

In this webinar, Will Forney will introduce the importance of water quality and nitrogen in regional aquatic ecosystems.  He will provide information about some problematic areas in the watersheds and rivers of the Columbia River basin.  He will also share information on drivers and controls influencing dissolved inorganic nitrogen (DIN) concentration in waterways seasonally.

Learning Objectives:

  1. Understand some patterns of dissolved inorganic nitrogen in and around the rivers of the Columbia River basin
  2. Learn how hydrologic and biogeochemical cycles may influence the patterns of dissolved inorganic nitrogen loads and concentrations
  3. Consider some applications for remote sensing to quantify important aspects of the cycles

Part 2: The effects of climate and meteorology on atmospheric nitrogen deposition

Tsengel Nergui will introduce how climate variability and weather conditions affect N sources and N deposition in the U.S. She will present key findings from her research on how climate variability affects N dynamics in the atmosphere using observations and the WRF-CMAQ modeling.

Learning Objectives:

  1. Learn about when and where in the U.S. nitrogen wet deposition is modulated by interannual natural climate variability
  2. Understand the nitrogen emission sources and nitrogen transport over the Pacific Northwest on monthly to annual time scales
  3. Learn about how the nitrogen budget in the Pacific Northwest varied during the strongest 1997/99 El Nino event on record

will-forneyWill Forney is a Research Assistant in the Global Change and Watershed Biogeochemistry Lab at WSU in Vancouver. He is working towards a PhD in the Environmental and Natural Resource Sciences. The working title of his thesis is, Multi-scaled investigations of nutrient dynamics and water quality modeling the Pacific Northwest. Prior to starting at WSU, Will was an Environmental Research Geographer with the U.S. Geological Survey.  He holds a Bachelor of Arts from Princeton University where he majored in Political Science and minored in Economics, and a Master of Environmental Management from Duke University’s Nicholas School of the Environment where he studied Landscape Ecology and Physical Sciences.

tsengel-nergui-cropTsengel Nergui is a PhD Candidate in the Laboratory for Atmospheric Research at WSU in Pullman. She is interested in understanding impacts of climate variability and weather conditions on air pollutants, including reactive nitrogen in the atmosphere. Recently, Tsengel quantified the effects of 1997/99 El Nino Southern Oscillation on the atmospheric nitrogen deposition and transport in the Pacific Northwest using regional-scale weather and chemical transport numerical (CMAQ) modeling. She is also investigating sources of the CMAQ model biases for ambient nitrogen oxides, ozone, and particular matter concentrations in the western U.S.