Improvements to the Category 1 and 2 Vessel Emission Inventory
- 1. Category 1 / Category 2 Vessel Port Underway Split for 2011 National Emission Inventory U.S. EPA Emission Inventory Conference,San Diego,CA April 12 - 16, 2015 Richard Billings Eastern Research Group 1
- 4. C1/C2 Vessel Categories / Data Source 4 Vessel Type Vessel Characteristics Activity Spatial elements Tugboats American Waterways Operators U.S. Coast Guard Merchant Vessels of the U.S. U.S. ACE Waterborne Transportation Lines of the U.S. Inland River Record IHS Registry of Ships American Bureau of Shipping American Waterways Operators U.S. ACE Waterborne Commerce. U.S. Coast Guard Vessel Movement Database BTS Transportation Atlas U.S. ACE Waterborne Commerce. U.S. ACE Waterborne Transportation Lines of the U.S. U.S. ACE Waterway Link Commodity Data Commercial Fishing U.S. Coast Guard Merchant Vessels of the U.S. California Commercial fishing Data Alaska CFEC permits Washington Department of Fish and Wildlife. NOAA, National Marine Fisheries Service NOAA, National Marine Fisheries Service Coast Guard U.S. Coast Guard Website U.S. Coast Guard Website Ferries Inland River Record American Bureau of Shipping American Public Transportation Association, Public Transportation Fact book BTS National Ferry Data base Small deepwater cargo vessels IHS Register of Ships American Bureau of Shipping U.S. ACE Vessel Clearance and Entrance Data U.S. Coast Guard Vessel Movement Database BTS Transportation Atlas U.S. ACE Waterway Link Commodity Data Offshore support vessels Offshore Marine Service Association Rig zone U.S. Coast Guard Merchant Vessels of the U.S. Offshore Support Vessels of the World. BOEM Gulf of Mexico emission inventory Workboat (publication) BOEM Gulf of Mexico emission inventory EPA 2011 NEI data file Great Lake Vessels IHS Register of Ships American Bureau of Shipping U.S. ACE Vessel Clearance and Entrance Data U.S. Coast Guard Vessel Movement Database BTS Transportation Atlas U.S. ACE Waterway Link Commodity Data Research Vessels IHS Register of Ships American Bureau of Shipping University of Delaware database of Research vessels University- National Laboratory System Ocean Physics Laboratory University of Delaware database of Research vessels University- National Laboratory System
- 5. General Approach Data Compilation / Activity Estimation 5
- 10. 2011 Summary Results 10 Vessel Type % of Port Activity % of Sea Activity Deepwater 0.0791% 7.8333% Ferries 2.8246% 1.5210% Fishing 0.5064% 9.6219% Government 2.5239% 1.7539% GreatLake 0.0413% 4.0934% Support (Offshore & Research) 1.7766% 43.9192% Tugs 3.9959% 19.5094% Total 11.7479% 88.2521% The activity for port and underway operations for all C1/C2 vessel types were aggregated and used as a weight factor for each allocation block and vessel operations using the following equation: SAiJ = AiJ/AiJ Where: SAiJ = Spatial activity factor for vessel type i operating in block J AiJ = Census Report activity for vessel type i in block J i = Vessel type (e.g., tug, ferry, fishing) and operation (i.e., port, underway) J = Specific spatial block
- 11. Improvements 11 Disaggregation of Port of Southern Louisiana and Baton Rouge port emissions to include extended boundaries of the ports Disaggregation of CT and MA ferry activities to all ports that reported ferry traffic in BTS National Census of Ferry Operators Reviewed tug data to check high activity in the Ohio River area
- 12. Conclusions.... Use of the C1/C2 census data allowed for a better approximation of port and underway activities Allowed activity to be developed for different vessels categories Planning to update the C1/C2 census data and apply the kw-hrs to emission factors to get 2014 emissions for NEI. 12
- 13. Acknowledgments EPA staff that supported this effort, Laurel Driver Penny Carey Brian Timin Staff who work on the original C1/C2 report Dr. James Corbett Sam Wells Guiselle Aldrete Staff who helped with the 2011 CMV NEI Roger Chang Heather Perez Jennifer Sellers 13
- 14. Questions? 14