The objective of the NOx workshop is to review the status of the GAW Network for NOx measurements, data quality objectives, progress with the measurement techniques and standards, and development of the measurement guidance. The workshop followed up on the recommendations made in relation to this focal area development at the NOx workshop in 2009.
9:00-9:05 |
Welcome |
James Lee, University of York |
9:05-9:20 |
Introduction and workshop objectives |
Christian Plass-Duelmer/Oksana Tarasova |
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Session 1: Overview of the Observational network and Requirements |
Chair: Oksana Tarasova
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9:20 – 9:35 |
Measurements of NOx and NOy at Hohenpeissenberg |
Dagmar Kubistin,
DWD |
9:35 – 9:50 |
NOx observations in Artic |
Detlev Helmig,
INSTAAR |
9:50 – 10:05 |
NOx observations at Cape Verde |
Chris Reed,
University of York |
10:05 – 10:20 |
NOx observations at Auchencorth Moss, near Edinburgh, UK |
Mhairi Coyle
Center for Ecology and Hydrology, NERC, UK |
10:20- 10:35 |
NOx measurements at Puy de Dome |
Aurélie Colomb
LaMP/OPGC (Clermont Ferrand, France) via telecon |
10:35 – 11 :00 |
Coffee break |
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11 :00 – 11 :15 |
MAX-DOAS observations of NO2 in NDACC: status and perspectives |
Francois Hendrick
Royal Belgian Institute for Space Aeronomy |
11:15 – 11:30 |
Experiences of measuring NOxy at Cape Grim Australia |
Ian Galbally,
CSIRO |
11:30-11:45 |
Twenty years of ambient observations of nitrogen oxides and specified hydrocarbons in air masses dominated by traffic emissions in Germany |
Christian Ehlers,
FZ-Julich |
11:45 -12:30 |
Discussion (1):
Application for aircraft measurements:
Recommendations, current issues |
Leads:
Stephanne Bauguitte
James Lee |
12:30-13:30 |
Lunch break |
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13:30 -14:10 |
Discussion (2):
- Recommendations for the network development
- Review of the Data Quality Objectives
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Lead:
Christian Plass-Duelmer |
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Session 2 Measurement techniques |
Chair: James Lee
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14:10 – 14:25 |
Measuring NOx with multiple instruments – the more information, the bigger the uncertainty? |
Robert Holla,
DWD |
14:25 – 14:40 |
New direct NO2 measurements (e.g. CAPS, LIF, QCL) |
Martin Steinbacher, Empa and
James Lee, University of York |
14:40-14:55 |
AQD BLCs |
James Lee / Chris Reed |
14:55-15:30 |
Coffee break |
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15:30-16:00 |
Use of the small sensors for NOx measurements |
Martin Steinbacher
Stefan Gilge
James Lee |
16:00-16:30 |
Discussions (3):
NO measurements:
What is the current state of the technology?
Issues round instrument operation, especially for low level measurements.
Different manufacturers – best recommended for remote or continental measurements |
Lead: Chris Reed |
16:30-17:00 |
Discussions (4):
NO2 measurements:
Photolytic converters, what is the current state of the technology, what type should we be using, what are the interference issues? |
Lead: Chris Reed |
17:00-17:30 |
Discussion (5):
Role of the small sensors in the GAW network |
Lead: Martin Steinbacher
Stefan Gilge
James Lee |
17:30 |
Adjourn |
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Session 3 Gas standards and calibration |
Chair:
Martin Steinbacher |
9:00-9:15 |
Underpinning measurements of NOX/ Status of the CCL for NO |
Paul Brewer,
NPL |
9:15-9:35 |
Discussion (6):
Zero air generation - Current state of the technology |
Lead: Paul Brewer |
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Session 4 Quality Assurance |
Chair:
Martin Steinbacher |
9:35 -9:55 |
Status of the MG NOx |
Christian Plass-Duelmer and Stefan Gilge |
9:55-10:10 |
Update on the activities of the WCC-NOx |
Franz Roher (video) and Christian Ehlers |
10:10-10:30 |
Discussion (7):
NOx measurement guidelines: follow up |
Lead:
Christian Plass-Duelmer and Stefan Gilge |
10:30-11:00 |
Coffee break |
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11:00-11:30 |
Finalization of the action list |
Lead: Alastair Lewis |
11:30 |
Final remarks and meeting closure |
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