WAQS 2011b Platform Base Year Emissions
Introduction
The WSAQS used the Sparse Matrix Operator Kernel Emissions (SMOKE) processing system version 3.5.1 to prepare emissions inputs for photochemical grid models (PGMs). The WSAQS 2011 version B (WSAQS2011b) emissions modeling platform consists of data and software to estimate air emissions fluxes that best represent the conditions in the western U.S. during 2011. The base 2011 modeling period is annual, and included a model spin-up period from December 16 to December 31, 2011. The modeling domain includes a 36 km continental US (CONUS) domain with a 12 km nest over the western U.S. and a 4-km nest the covers the states of Colorado, Utah, and Wyoming.
2011b Inventory Data
3SAQS Phase II Oil and Gas Emissions
WAQS Processing Sectors: arog, ptog
Year(s): 2011
Data Provider: Ramboll Environ
The oil and gas basins covered by the 3SAQS Phase II inventory are for the year 2011. These data were developed for the 3SAQS and WAQS by Ramboll Environ. The WAQS 2011 Phase II Oil and Gas wiki documents the oil and gas inventory and emissions data used for the WAQS 2011b modeling. This page includes summary spreadsheets and links to the SMOKE-ready data files (inventories, spatial surrogates, speciation profile, and temporal profiles) used in simulation 2011b.
Other U.S. Anthropogenic Emissions
WAQS Processing Sectors: c1c2rail, c3marine, fdust, nonpt, ft, lv, rwc, nonroad, onroad, usarog, usptog, ptcem, ptncem, ptsecaYear(s): 2011
Data Provider: US EPA
Details about the EPA NEI2011v6 (2011v2 modeling platform) inventories are available in the EPA Technical Support Document for the platform.
Canada Anthropogenic Emissions
WAQS Processing Sectors: canar, canmb, nusptYear(s): 2010
Data Provider: US EPA/Environment Canada
Details about the Canada inventories used in the EPA NEI2011v6 (2011v2 modeling platform) inventories are available in the EPA Technical Support Document for the platform.
Mexico Anthropogenic Emissions
WAQS Processing Sectors: mexar, mexmb, nusptYear(s): 2008
Data Provider: US EPA/SEMARNAT/ERG, Inc.
Details about the Mexico inventories used in the EPA NEI2011v6 (2011v2 modeling platform) inventories are available in the EPA Technical Support Document for the platform.
Natural Emissions
WAQS Processing Sectors: biogenic, wbd, seasalt, lightning, firesYear(s): 2011
Data Provider: Ramboll Environ and Air Sciences (Fires)
The natural emissions are estimated with 2011 meteorology and 2010 or earlier landuse/landcover data.
Inventory Data Details
The table below lists the emissions inventory sectors used to represent air pollutant emissions for the WAQS. The table includes the WAQS sector name and abbreviation; the source of the data; and a short description of the sector.| WAQS Sector | Data Source | Description |
|---|---|---|
| Aircraft/locomotive/marine (alm) | EPA NEI 2011v2 sector C2C2RAIL | County-level inventory taken directly from the NEI 2011v2 platform. |
| Off-road mobile (nonroad) | EPA NEI 2011v2 sector NONROAD | NMIM county-level inventories taken directly from the NEI for recreational vehicles, logging equipment, agricultural equipment, construction equipment, industrial equipment, lawn and garden equipment, leaf and snow blowers, and recreational marine. The CA and TX NONROAD estimates were normalized to emissions values provided by these states. |
| On-road mobile (onroad) | EPA NEI 2011v2 sector ONROAD | EPA ran MOVES2014 for 2011 in emissions factor mode. The MOVES lookup tables include on-network (RPD), on-network refueling (RPD_RFL), on-network for CA (RPD_CA), off-network starts/stops (RPV), off-network starts/stops refueling (RPV_RFL), off-network starts/stops for CA (RPV_CA), off-network vapor venting (RPP) off-network vapor venting sources for CA (RPP_CA), and extended idling (RPH). These data include the reference county and reference fuel month assignments that EPA used for the MOVES simulation. The CA MOVES estimates were normalized to emissions values provided by CARB. |
| Refueling (rfl) | EPA NEI 2011v2 sector NONPT | County-level inventory taken directly from the NEI for onroad mobile refueling. |
| Non-point/Area (nonpt) | EPA NEI 2011v2 sector NONPT | County-level inventory taken directly from the NEI. |
| Fugitive Dust (fdust) | EPA NEI 2011v2 sectors afdust and othafdust | County-level inventory taken directly from the NEI. Applied post-hoc adjustments to the dust emissions to account for vegetative scavenging of the dust emissions. |
| Fertilizer | EPA NEI 2011v2 sector AG | County-level inventory taken directly from the NEI. Applied a meteorology-based algorithm to simulate the temporal variability in hourly emissions. |
| Livestock | EPA NEI 2011v2 sector AG | County-level inventory taken directly from the NEI. |
| Residential Wood Combustion (RWC) | EPA NEI 2011v2 sector RWC | County-level inventory taken directly from the NEI. Applied a meteorology-based algorithm to simulate the temporal variability in daily emissions from this sector. |
| Area oil and gas (arog) | Ramboll Environ | 2011 3SAQS Phase II inventories for the Denver-Julesburg, Piceance, Uintah, North San Juan, South San Juan, Southwest Wyoming, Wind River, Powder River, Big Horn, Paradox, Raton, and Williston basins. |
| Point oil and gas (ptog) | Ramboll Environ | 2011 3SAQS Phase II inventories for the Denver-Julesburg, Piceance, Uintah, North San Juan, South San Juan, Southwest Wyoming, Wind River, Powder River, Big Horn, Paradox, Raton, and Williston basins. |
| U.S. area oil and gas (usarog) | EPA NEI 2011v2 sector NP_OILGAS | County-level inventory taken directly from the NEI. Area O&G sources for the basins not covered by the 2011 3SAQS Phase II inventory. |
| U.S. point oil and gas (usptog) | EPA NEI 2011v2 sector PT_OILGAS | County-level inventory taken directly from the NEI. Point O&G sources for the basins not covered by the 2011 3SAQS Phase II inventory. |
| Continuous Emission Monitor point (ptcem) | EPA NEI 2011v2 and CAMD sector PTEGU | 2011 Clean Air Markets Division (CAMD) hourly Continuous Emissions Monitor (CEM) data and county-level inventory taken directly from the NEI. |
| Non-CEM point (ptncem) | EPA NEI 2011v2 sector PTNONIPM | County-level inventory taken directly from the NEI for non-CEM and non-oil and gas point sources. |
| Offshore shipping (ptseca) | EPA NEI 2011v2 sector OTHPT | Elevated point C3 commercial marine sources in offshore commercial shipping lanes. |
| Canada nonpoint sources (canar) | EPA NEI 2011v2 sector OTHAR | Canada NPRI 2010 nonpoint, agricultural, nonroad mobile, and commercial marine inventory taken directly from the NEI. |
| Canada onroad mobile sources (canmb) | EPA NEI 2011v2 sector OTHON | Canada NPRI 2010 inventory taken directly from the NEI |
| Mexico nonpoint sources (mexar) | EPA NEI 2011v2 sector OTHAR | Mexico National Emission Inventory 2008 nonpoint and nonroad mobile inventory taken directly from the NEI. |
| Mexico onroad mobile sources (mexmb) | EPA NEI 2011v2 sector OTHON | Mexico National Emission Inventory 2008 inventory taken directly from the NEI. |
| Canada and Mexico point sources (nuspt) | EPA NEI 2011v2 sector OTHPT | Canada 2010 and Mexico 2008 National Inventories taken directly from the NEI. |
| Fires (fire) | Air Sciences | PMDETAIL 2011 version 2 inventory for wild, prescribed, and agricultural fires in the U.S., Canada, and Mexico; includes pre-computed plume parameters and speciated PM. |
| MEGAN biogenics (bg) | Ramboll Environ | MEGAN v2.10 biogenic emissions calculated the WAQS 2011 meteorology |
| Windblown dust (wbd) | Ramboll Environ | WRAP windblown dust emissions calculated the WAQS 2011 meteorology |
| Sea salt (seasalt) | Ramboll Environ | |
| Lightning (lnox) | Ramboll Environ | Lightning NO2 emissions |
A detailed listing of the inventory data files in each of the WAQS processing sectors is available in the WAQS 2011b inventory list spreadsheet.
Ancillary Data
Most of the ancillary emissions data (gridding, temporal, chemical speciation) for the WAQS 2011b modeling came from the 2011a modeling platform.Emissions Summaries
Stacked bar charts for each of the WRAP states showing the contribution of each emissions sector to the over annual emissions in each state.
Comparison of the Base2011a and 2011b annual emissions for the states of Colorado, Utah, and Wyoming.
- VOC: Annual totals, absolute difference, relative difference
- NOx: Annual totals, absolute difference, relative difference
- NH3: relative difference
- SO2: relative difference
- PM2.5: relative difference
- CH4: relative difference
A full archive of emissions plots (2-d tileplots and annual timeseries) are available through the IWDW Image browser (under 2011 Base11b -> EMIS) and via ftp.
Errata
- Nonpoint refueling emissions are missing