1 / 23

A New Anthropogenic Emission Inventory System for Asia in Support of Atmospheric Modeling

A New Anthropogenic Emission Inventory System for Asia in Support of Atmospheric Modeling.

aiden
Download Presentation

A New Anthropogenic Emission Inventory System for Asia in Support of Atmospheric Modeling

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A New Anthropogenic Emission Inventory System for Asia in Support of Atmospheric Modeling Qiang Zhang,1 David G. Streets,1 Kebin He,2 Shekar Reddy,3 Akiyoshi Kannari,4 Il-Soo Park,5 Joshua Fu,6 and Zbigniew Klimont71Argonne National Laboratory, Argonne, USA2Tsinghua University, Beijing, China3UK Met Office Hadley Centre, Exeter, UK4Independent Researcher, Tokyo, Japan5Meteorological Research Institute, Seoul, Republic of Korea6University of Tennessee, Knoxville, USA7International Institute for Applied Systems Analysis, Laxenburg, Austria6th CMAS Conference, Chapel Hill, NC, USAOctober 1-3, 2007

  2. TRACE-P inventory for the year 2000:It’s now 2007, and we have learned a lot from its use! SO2

  3. Updated inventory with improved methodology Incorporate from best available datasets Extrapolate from TRACE-P inventory Scope and methodology of a new, dynamicemission inventory dataset for Asia

  4. We develop a new Asia emission inventory dataset with improved methodology

  5. Major improvements from TRACE-P Asia inventory • Detailed technology based approach • Dynamic methodology representing rapid technology renewal • Size-fractioned primary PM emissions • The best available national inventories incorporated • New VOC speciation methodology • Improved spatial allocation • Updated temporal profiles • Constraint from top-down method (inverse model/satellite)

  6. Lime We found that detailed characterization of technology is necessary to improve CO, PM, and HC emission estimates TRACE-P level of analysis Good Efficiency Moderate Efficiency Poor Efficiency

  7. We use a dynamic methodology to representthe rapid technology change in the last decade Emission factors could change very quickly with the fast technology renewal progress: trends of technology distribution and NOx emission factors in power plants

  8. We have developed a technology-based PM emission modelfor China, as an extension of the RAINS-PM model

  9. We first developed a size-fractioned PMemission inventory for China High emitters around Beijing This PM inventory has been used in CMAQ for evaluating the regional impacts on Beijing air quality in support of Olympic plan

  10. The best available national emission inventory datasets are incorporated to our system 2003 SO2 emissions for Korea (II-Soo Park) 2000 NOx emissions for Japan (Kannari et al., 2007)

  11. We use a new VOC speciation methodology for better supporting air quality modeling • ~100 emitting sources • Fully coupled with SPECIATE 4.0 database • A few local VOC profiles are used • ~500 individual VOC species • Supported mechanisms: CBIV, CB05, SAPRC99, SAPRC07, RADM2, GEOS-CHEM • Providing gridded emissions by mechanisms directly, using a speciation/spatial allocation matrix approach

  12. Updated temporal profile is developed using various local information, e.g., monthly profile of NOx emissions by sector

  13. Local information is very helpful for improving spatial precision of inventories, e.g. NOx emissions from power plants Allocate by population Allocate by unit information

  14. The satellite-observed NOx emission increase in China could be directly verified by our high-resolution emission data 2004 NOx – 2001 NOx, power plants 2001: 4.6 Tg-NO2 2004: 7.1 Tg-NO2, +54% Gg

  15. WINTER SUMMER We are finishing a comparison of NOx emission trends in China between emission inventories and satellite imagery Inventory: +62% Satellite: +67% Inventory: +57% Satellite: +108% The satellite and inventory trends agree well in the summer,but the satellite trend grows faster in the wintertime The bias in winter might come from a combination of • Underestimate of seasonal variation in emissions, and • Large error of satellite retrievals in winter

  16. Our new CO inventory now agrees well with top-down estimates over East China region Source: Kopacz et al., 2007

  17. Final product: gridded emissions over Asia at 30 min × 30 min resolution PM2.5, 2006 VOC, 2006

  18. Our new emission estimates for Asia for the year 2006 are significantly higher than TRACE-P inventory for the year 2000 IMPORTANT NOTE: The emission changes between the two inventories reflect a combination of: (a) actual growth in emissions due to increasing economic development, (b) the effects of replacing the TRACE-P inventory by local inventories in several countries, and (c) improvements and corrections made to the original TRACE-P inventory. The changes should not be viewed solely as real emissions growth!

  19. Data summary and availability • Data summary • Years: 2004, 2006 • Sectors: Power, Industry, Domestic, Transport • Species: SO2, NOx, CO, VOC, Primary PM, Hg, NH3, and CH4 • VOC speciation: SAPRC99, SAPRC07, CBIV, CB05, RADM2, GEOS-CHEM • PM speciation: TSP, PM10, PM2.5, BC, OC, Hg, Ca, and Mg • Grid size: 0.5 degree for whole Asia; fine grid emissions (0.1-0.2 degree) available for selected regions/sectors • Data availability • 0.5 degree data for 2006 (with SAPRC99 speciation) are available at: http://www.cgrer.uiowa.edu/EMISSION_DATA_new/index_16.html • 0.5 degree data with other speciation are generally open for community upon request (dstreets@anl.gov or zhangq@anl.gov) • Fine grid emissions are available on a collaboration basis with the agreement of Chinese collaborators

  20. Further reading for methodologies and numbers • Streets, D.G., J. Hao, Y. Wu, J. Jiang, M. Chan, H. Tian, and X. Feng (2005), Anthropogenic mercury emissions in China, Atmos. Environ., 39, 7789-7806. • Streets, D.G., Q. Zhang, L Wang, K. He, J. Hao, Y Wu, Y. Tang, and G.R. Carmichael (2006), Revisiting China’s CO emissions after TRACE-P: Synthesis of inventories, atmospheric modeling, and observations, J. Geophys. Res., 111, D14306, doi: 10.1029/2006JD007118. • Zhang Q., Streets, D.G., K. He, Y.X. Wang, A. Richter, J. P. Burrows, I. Uno, C. J. Jang, D. Chen, Z. Yao, and Y. Lei (2007), NOx emission trends for China, 1995-2004: The view from the ground and the view from space, J. Geophys. Res., in press • Zhang Q., Streets D.G., K. He, and Z. Klimont (2007), Major components of China’s anthropogenic primary particulate emissions, Environ. Res. Lett., submitted

  21. Next step: provide high-resolution emissions by combining GIS information and county-level statistics 0.5 degree, without GIS information County emissions 0.1 degree, with GIS information 0.1 degree, without GIS information

  22. Next step: develop a new multi-resolution emission model system for China (Argonne and Tsinghua)

  23. Acknowledgements • USEPA, especially Dr. Carey Jang • NASA INTEX project • China National Basic Research Program (973) & National High-Technology Research Program (863) • Collaborators at Tsinghua University, China

More Related