Objective
The objective of the N cycle workshop was to establish the dialog between the expert groups on GAW that include research related to N contacting substances (reactive gases, greenhouse gases, aerosols, total deposition, and marine environment) and establish collaboration with the other international programs and initiatives involved in global N cycle research.
Draft meeting report
Agenda with presentations
Wednesday, 13 April
13:30 – 13:40 |
Welcome and meeting objectives |
James Lee, University of York
Oksana Tarasova, WMO
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Session 1 Introductions and setting up the scene |
Chair: Oksana Tarasova |
13:40-13:55 |
Perspective of SSC on cross-cutting activities and N cycle research |
Paul Monks,
Uni of Leicester, GAW SSC |
13:55-14:10 |
Reactive Nitrogen in LRTAP Convention |
CLÁUDIA Marques dos Santos CORDOVIL,
Instituto Superior de Agronomia, Universidade de Lisboa |
14:10-14:25 |
Added value of complementary observations of Nitrogen species – example of Cape Grim |
Ian Galbally,
CSIRO |
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Session 2 Nitrogen in the group of Reactive Gases |
Chair: Oksana Tarasova |
14:25-14:40 |
Overview of N components addressed in the GAW Reactive Gases programme |
Christian Plass-Dülmer,
DWD |
14:40-14:55 |
NOx/NOy observations at Cape Verde |
James Lee/Chris Reed
University of York |
14:55-15:10 |
MAX-DOAS observations of NO2 in NDACC: status and perspectives |
Francois Hendrick
Royal Belgian Institute for Space Aeronomy |
15:10-15:40 |
Coffee break |
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Session 3 Nitrogen in the group of Greenhouse Gases |
Chair: Ian Galbally |
15:40-15:55 |
N2O observations and analysis - prospective of GHG SAG |
Brad Hall
NOAA |
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Session 4 Reactive nitrogen chemistry and exchanges over the ocean and snow |
Chair: Ian Galbally |
15:55-16:05 |
GESAMP Working Group 38 and its oceanic nitrogen deposition studies |
Robert Duce,
Texas A&M University |
16:05-16:20 |
Atmospheric Nitrogen Deposition to the Oceans: Observation- and Model-Based Estimates |
Alex Baker ,
University of East Anglia |
16:20-16:35 |
Atmospheric Nitrogen Inputs to the Oceans and their Impact |
Tim Jickells,
University of East Anglia |
16:35-16:50 |
Reactive nitrogen chemistry in snow-covered environments |
Detlev Helmig,
INSTAAR, University of Colorado |
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Session 5 Nitrogen in aerosols |
Chair: Ian Galbally |
16:50-17:05 |
NO3/NH3 behavior
between gas and aerosol phases |
Thanos Nenes,
Georgia Tech, School of Earth and Atmospheric Sciences
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17:05-17:20 |
NO3- and NH4+ in aerosol from ACSM and filter at Hohenpeissenberg |
Robert Holla,
DWD |
17:40-18:00 |
Formulation of key discussion points |
Lead by Paul Monks |
Thursday, 14 April
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Session 6 Deposition of Nitrogen |
Chair: Alastair Lewis |
9:00-9:15 |
Deposition on N – prospective of the SAG TAD |
Corinne Galy-Lacaux
Laboratoire d’Aérologie
CNRS HDR |
9:15-9:30 |
Impacts of N deposition |
Kevin Hicks,
University of York |
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Session 7 N cycle in agriculture and ecosystems |
Chair: Alastair Lewis |
9:30-9:45
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N fluxes from the agricultural sector |
Elizabeth Pattey
Agriculture and Agri-Food Canada |
9:45-10:00 |
How well do we understand and describe drivers of change of N cycle in natural and agro-ecosystems |
Simona Castaldi,
Second University of Naples |
10:15-10:30 |
Ammonia metrology |
Dr Christine Braban, CEH |
10:30-11:00 |
Coffee break |
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Session 8 Integration and Discussions |
Chair: Mark Sutton |
11:00-11:20 |
International Nitrogen Management Initiative |
Howard, Clare/ Mark Sutton ,
Center for Ecology and Hydrology, NERC, UK |
11:20-12:30 |
Discussions
• Gap analysis of N observations in GAW – what are the missing elements
• Products that can be delivered by GAW community
• Potential collaboration to be established (potential contribution from agricultural community on e.g. ammonia, or metrology community with ammonia)
- Other points identified on Wed
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Lead by Ian Galbally and Mark Sutton |
12:30-13:30 |
Lunch break |
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13:30-15:00 |
Continuation of discussions
Recommendations
- potential pilots/activities
- presentation of the meeting outcome at the 7th International Nitrogen Conference (INI 2016) |
Lead by Ian Galbally and Mark Sutton |
15:00 |
Coffee break and meeting closure |
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