IMPROVE Carbon Issues and Trends, Workshop October 20, 2010, Skamania Lodge, Stevenson, WA

The day before the 2010 IMPROVE steering committee meeting, a workshop was held to explore the fine particulate carbon concentrations measured in the IMPROVE and CSN monitoring networks. The workshop was focused on the spatial and long-term patterns in the organic, elemental and total carbon measurements as well as potential carbon measurement issues and their effects on the carbon concentration patterns.

8:00am	Welcome and Introduction	Marc Pitchford
IMPROVE Carbon Trends & Uncertainty
8:15am	Decrease in EC and Fine Particle Mass in the US Exploration of long-term trends in IMPROVE non-carbon species	Daniel Murphy (via speakerphone)
8:30am	Trends in EC/OC ratios at long term IMPROVE sites and Washington DC	Bret Schichtel
8:45am	CSN and IMPROVE EC and TC Patterns and Trends, 2000-2009	Bret Schichtel
9:15am	CSN Carbon Trends by Measurement and Difference	Neil Frank
9:45am	CSN Artifacts with URG-3000 Sampler	Judy Chow
10:15am	Morning Break
10:30am	Trends for EC and BC	Warren White
11:00am	Long-term EC and Reflectance Trends in IMPROVE Laboratory Data	John Watson
11:30am	Reanalysis of IMPROVE Carbon Samples	Warren White
Noon	Lunch Break
1:00pm	Seasonal Variability in OM/OC Ratios Across the US	Heather Simon
1:30pm	OM/OC Ratios in Rural, Suburban and Urban Areas	Bill Malm
2:00pm	Effect of the Absorption Angstrom Exponent on the EC to BC Relationship	Mark Green
2:30pm	Organic Carbon Data Quality in IMPROVE and Alternate Models for the Artifact	Ann Dillner,
2:45pm   3:00pm	·  What more should be done to better understand past data? Afternoon Break (15 minutes) ·  What can be done to improve future data? ·  Develop an Action Plan.	Open Discussion
Other IMPROVE Data Uses
4:30pm	IMPROVE Report Trends Analysis	Jenny Hand
5:00pm	Nitrate in the Columbia River Basin	Ranil Dhammapala
5:30pm	Adjourn