1 / 23

Emissions and Air Quality Modeling at the WRAP RMC Status, Tools, & Process

Learn about the latest advancements in modeling systems and tools addressing emissions, meteorology, and air quality to enhance environmental policy development. Explore the challenges, state-of-the-art technologies, and future goals in this comprehensive guide.

leilanid
Download Presentation

Emissions and Air Quality Modeling at the WRAP RMC Status, Tools, & Process

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. Emissions and Air Quality Modeling at the WRAP RMCStatus, Tools, & Process Zac Adelman Center for Environmental Modeling for Policy Development WRAP Technical Oversight Committee - Denver, CO July 29-30, 2008

  2. WRAP RMC Structure • UC-Riverside, CE-CERT • Gail Tonnesen (RMC Project Manager) • Project and contract management • Meteorology, emissions, air quality modeling • Data analysis and model development • Computing system and data management • ENVIRON, Corp. • Ralph Morris • Meteorology, emissions, air quality modeling • Data analysis and emissions model development • Emission inventory development • UNC, Institute for the Environment • Zac Adelman • Emissions modeling and data analysis

  3. RMC Modeling Challenges • Large scale data collection/collation effort • Missing and/or deficient emission inventories • e.g. wildfire, dust, anthropogenic ammonia, commercial shipping • Complexities in applying the available modeling and analysis tools to meet WRAP needs • Data management and storage requirements • Modeling system development and management • Computing system development, management, and maintenance • Technical outreach and modeling support Goal: Address these issues with the next generation set of modeling tools

  4. The Evolution of RMC Modeling • Modeling infrastructure development (personnel, hardware, software) • Identify and understand key scientific issues • Tool development • Application • Reporting and documentation

  5. State of the Modeling Systems • Air Quality Modeling system components • Meteorology • Emissions • Chemistry-Transport • Data analysis/Visualization • Model distribution portals • NCAR: emissions, meteorology, CTM, analysis • CMAS: emissions, CTM, analysis • U.S. EPA • Primary developers • EPA does not prescribe specific models or approaches

  6. State of the Modeling Systems • Emissions • Refine existing processes, add new sources/processes • Integrate with databases, improve performance and transparency • Chemistry-Transport • Chemistry improvements, SOA models, PM dynamics • Probing tools • Meteorology • Integrated Met-Chem • Analysis/Case Management • Java visualization tools • Integrated database-statistical analysis programs • Emissions sensitivity and simulation tracking frameworks • Documentation • Inline, online, user’s guides, science documents, primary literature

  7. Modeling System StatusEmissions • SMOKE (http://www.smoke-model.org) • Current release version: 2.4 (March, 2008) • air toxics, EDMS (FAA) interface, BEIS3.13 • Developer: UNC-IE • Next release: minor bug fixes (Late, 2008) • CONCEPT (http://www.conceptmodel.org) • Current release version: 0.60 (March, 2005) • link-based mobile, stationary area, point processing • Developers: Alpine Geophysics, ENVIRON, UCR • Next release: • MEGAN (http://acd.ucar.edu/~guenther/MEGAN/MEGAN.htm) • Current release version: 2.04 (October, 2007) • Biogenic emissions, high resolution land-cover, SOA precursors • Developer: NCAR-ACD • Next release:

  8. Modeling System StatusAir Quality • CMAQ (http://www.cmaq-model.org) • Current release version: 4.6 (October, 2007) • air toxics, CB-05, aerosol chemistry updates, carbon and sulfate tracking • Developer: US EPA-ORD • Next release: 4.7 (October, 2008) • SOA model enhancements • isoprene SOA, sesquiterpene SOA, polymerization, acid-catalyzed SOA, NOx-dependent SOA yields, and updates to dHvap • In-cloud SOA formation pathways • Gas-phase mechanism improvements for SOA precursors • Coarse PM • Semi-volatile inorganic aerosol components can condense and evaporate from the coarse mode via dynamic mass transfer • Nonvolatile sulfate can condense on the coarse mode • Water is allowed to exist in the coarse mode determined by equilibrium with ambient RH • Variable standard deviation of coarse mode size distribution

  9. Modeling System StatusAir Quality • CMAQ cont’ • Version 4.7 Updates • Aerosols (misc) • Gamma N2O5 updates to heterogeneous reaction • Re-derived parameterization based on Davis et al. (2008) • Chemistry • HONO enhancements • Heterogeneous reaction on aerosol and ground surfaces • Emissions from mobile sources • Photolysis module • In-line calculation, with aerosol feedback (optional) • Satellite cloud data (optional) • Aqueous Chemistry • Update Henry's Law constants • SOA Production (Glyoxyl, methylglyoxyl chemistry) • Add Cl2 chemistry to base CB05 mechanism

  10. Modeling System StatusAir Quality • CMAQ cont’ • Version 4.7 Updates • Dry Deposition • Move calculation to CMAQ (optional) • Bi-directional NH3 sfc flux (optional) • Emissions • Biogenic emissions • Move BEIS into CMAQ (optional) • Add sesquiterpene emissions • Move Plume-rise into CMAQ (optional) • Sea-salt emissions • Spatial Allocator to produce ocean file • Update flux parameterizations & surf zone emissions

  11. Modeling System StatusAir Quality • CMAQ cont’ • Version 4.7 Updates • Other upgrades to v4.7 • Multi-pollutant model (aero5) • Ozone, PM, Hg, air toxics, visibility, Cl… • Carbon apportionment model • Sulfate tracking model Capability • Direct Decoupled Method (DDM) • Updates for new aerosol

  12. Modeling System StatusAir Quality • CMAQ cont’ • Beyond version 4.7 • Two-way Coupled WRF/CMAQ • Feedbacks from the chemistry model to the meteorological model • High time resolution data exchange • Chemistry/transport/deposition calculations on-line (and fully synchronized) with meteorological calculations • Alternative gas-phase chemical mechanisms • SAPRC-2007 • RACM2 • Aerosols • Speciation of fine soil, non-carbon organic matter • Source Apportionment of PMother • Clouds • Rosenbrock solver for aqueous chemistry • Grell sub-grid cloud module • Dry Deposition • Mosaic land-use approach • NLCD

  13. Modeling System StatusAir Quality • MCIP (http://www.cmaq-model.org) • Current release version: 3.3 (October, 2007) • air toxics, aerosol chemistry updates, carbon and sulfate tracking • Developer: US EPA-ORD • Next release: 3.4 (October, 2008) • Support for UAH satellite processing (if invoked by the user) • Support for WRF urban canopy model (if used in WRF) • Updates for WRFv3 (released April 2008). • Support for 33-category USGS land use (if used in WRF) • Five new air toxic dry deposition velocities • 2-m mixing ratio in METCRO2D (for verif/eval)

  14. Modeling System StatusAir Quality • MCIP cont’ • Version 3.4 Updates • New specification of WRF header variables for I/O API. (XCENT, YCENT, XORIG, YORIG) • User-definable earth radius (hidden, via namelist). Default matches MM5 & WRF defaults • Slight change to MM5 vertical coordinate definition (Jacobian, etc.) by adjusting constants to match MM5 • Improved support for PX and NOAH LSMs, particularly for WRF • Output TKE from MM5/WRF (if available) • Additional metadata in output (nudging coeffs, earth radius)

  15. Modeling System StatusAir Quality • CMAQ-AMSTERDAM (http://www.cmascenter.org) • Next generation MADRID sectional aerosol model • Release: TBD (fall 2008?) • Developer: AER, Inc. • Also includes APT plume-in-grid • CMAQ-DDM (http://www.cmaq-model.org) • Current release version: CMAQv4.7 (October, 2008) • Developer: Georgia Tech • Technique to determine the sensitivity of a CTM to emissions changes; alternative to brute force sensitivities

  16. Modeling System StatusAir Quality • CMAQ-Adjoint (http://people.cs.vt.edu/~asandu/Software/CMAQ_ADJ) • Current release version: CMAQv4.5 • Developer: Virginia Tech, CalTech, U. of Houston • 4-D gas-phase chemical data assimilation • CMAQ-TSSA • Current release version: CMAQv4.3 and 4.4 • Developer: UC-Riverside • Tagged-species source apportionment • Hemispheric CMAQ • Current release version: In development • Developer: UNC-IE • Emissions and chemistry updates for proof-of-concept approach to use CMAQ as an alternative to GCMs for BCs to continental-scale simulations

  17. Modeling System StatusAir Quality • CAMx(http://www.camx.com) • Developer: ENVIRON, Corp. • Current release version: 4.5.1 (May 22, 2008) • Ozone, PM, visibility, mercury and air toxics “one-atmosphere” photochemical grid modeling system • Two-way grid nesting • Plume-in-Grid (PiG) • CB05, CB-IV, SAPRC chemistry • RADM aqueous-phase chemistry • ISORROPIA aerosol thermodynamics • “Probing Tools” • Ozone (OSAT) and PM (PSAT) source apportionment • Decoupled Direct Method (DDM) • Process Analysis (PA) • Reactive Tracer (RTRAC)

  18. Modeling System StatusAir Quality • CAMx version 4.5.1 cont’ • New Features • Updated SOA module • SOA from sesquiterpenes and isoprene • Polmerization of SOA • New biogenic SOA precursors generated by MEGAN biogenic emissions model • Updated PiG module • Full chemistry in PiG • Gaussian pluff distribution • Subgrid-scale receptor grid for sampling live puffs • CAMx next release (Fall, 2008) • Higher Order DDM (HDDM) • Chemistry Updates

  19. Modeling System StatusIntegrated Meteorology-Chemistry • 2-way coupling, chemical feedbacks to meteorology • WRF-Chem (http://ruc.fsl.noaa.gov/wrf/WG11/public.htm) • Current release version: Version 3.0 (April, 2008) • Developers: NCAR et al, • Meteorology, emissions, chemistry parameterizations • WRF-CMAQ (http://www.cmaq-model.org) • Release: CMAQv4.7 (2009) • Developer: US EPA/ORD • Full CMAQ CTM tightly coupled to WRF

  20. Modeling System StatusMeteorology • MM5 (http://www.mmm.ucar.edu/mm5) • Current release version: 3-7 (December, 2004) • Developer: PSU, NCAR • No longer in development, still widely used for driving CTMs • WRF (http://www.wrf-model.org) • Current release version: 3.0 (April, 2008) • Developer: NCAR et al. • Development in 2 cores • Advanced Research WRF (ARW) • Nonhydrostatic Mesoscale Model (NMM) • Current multi-scale meteorology model supported through NCAR

  21. Modeling System StatusVisualization • PAVE(http://www.cmascenter.org) • Current release version: 2.3 (August, 2005) • Developer: UNC-IE • No longer in development • VERDI(http://www.verdi-tool.org) • Current release version: 1.03 (May, 2008) • Developer: Argonne NL • Java replacement to PAVE • IDV(http://www.unidata.ucar.edu/software/idv/) • Current release version: 2.5 • Developer: NCAR • Java integrated 3-d visualization system

  22. Modeling System StatusAnalysis • AMET(http://www.cmascenter.org) • Current release version: 1.1 (May, 2005) • Developer: US EPA/ORD • Meteorology and air quality observation database with utilities for computing model performance statistics and graphics • BENMAP (http://www.benmap-model.org) • Current release version: 2.4.8 (October, 2008) • Developer: US EPA • Uses gridded CTM output to calculate health and economic impacts

  23. Modeling System StatusSensitivity and Case Management • EMF • URL: TBD • Current release version: not yet released, soliciting pilot sites • Developers: EPA/OAQPS, UNC-IE • Emissions data and case management framework; work in progress to extend to CMAQ • CoST • Current release version: not yet released • Developer: UNC-IE • Calculates costs/economic impacts of emissions control strategies and manages emissions sensitivities

More Related