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International Workshop on the Nitrogen Cycle

Global Atmosphere Watch International workshop

on Nitrogen Cycle

University of York, UK

13-14 April 2016

 

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

 

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

 

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

 

 

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

 

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

 

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

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

 

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

 

Session 7 N cycle in agriculture and ecosystems

Chair:  Alastair  Lewis

9:30-9:45

 

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

 

 

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

Lead by Ian Galbally and Mark Sutton

12:30-13:30

Lunch break

 

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