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| | + | __FORCETOC__ |
| | This page describes the aircraft emissions inventories used by GEOS-Chem. | | This page describes the aircraft emissions inventories used by GEOS-Chem. |
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| − | == FAA aircraft emissions inventory == | + | == AEIC 2019 emissions inventory == |
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| − | Starting with [[GEOS-Chem v9-01-02]], we have implemented monthly mean aircraft emissions from the FAA AEDT emissions inventory. This inventory was developed by the FAA and was adapted for GEOS-Chem by [mailto:sbarrett@mit.edu Steven Barrett], [mailto:steveyim@mit.edu Steve Yim], [mailto:jaminkoo@mit.edu Jamin Koo] et al from MIT.
| + | An updated version of the AEIC aircraft emissions (named '''AEIC 2019''') was introduced in [[GEOS-Chem 13.4.0]]. |
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| − | This inventory contains the following species:
| + | '''References''' |
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| − | # Fuel burned
| + | *[https://github.com/geoschem/geos-chem/files/8307152/AEIC_2019_technical_note.pdf AEIC 2019 Technical Note] by Seb Eastham (MIT). |
| − | # CO
| + | *[https://github.com/geoschem/geos-chem/pull/1183/geos-chem geoschem/geos-chem PR #1183]. |
| − | # Hydrocarbons
| + | |
| − | # NOx
| + | |
| − | # Soot
| + | |
| − | # Organics | + | |
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| − | The hydrocarbon emissions are not included into GEOS-Chem.
| + | --[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 21:41, 16 September 2022 (UTC) |
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| − | For more information about the data files, please see the following READMEs:
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_0.5x0.666_CH/FAA_201104/README GEOS_0.5x0.666_CH/FAA_201104/README]
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_0.5x0.666_NA/FAA_201104/README GEOS_0.5x0.666_NA/FAA_201104/README]
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_1x1/FAA_201104/README GEOS_1x1/FAA_201104/README]
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_2x2.5/FAA_201104/README GEOS_2x2.5/FAA_201104/README]
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_4x5/FAA_201104/README GEOS_4x5/FAA_201104/README]
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| − | For more information about the AEDT emissions inventory, please see this document from the FAA.
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| − | --[[User:Bmy|Bob Y.]] 14:12, 31 March 2011 (EDT) | + | |
| − | | + | |
| − | == Old aircraft emissions inventory (prior to v9-01-02) ==
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| − | | + | |
| − | === NOx ===
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| − | The inventory of aircraft NOx used in GEOS-Chem is described in [http://acmg.seas.harvard.edu/publications/wang1998a.pdf ''Wang et al'' <nowiki>[1998]</nowiki>]:
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| − | | + | |
| − | <blockquote>For NO emissions from subsonic aircraft, we adopted the 1992 monthly mean emisison inventory compiled by ''Baughcum et al'' [1996] and ''Metwally'' [1995]; the inventory has a resolution of 1° x 1° x 1 km, and the global source is 0.51 Tg N/yr.</blockquote>
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| − | The source code to read data from the aircraft NOx emissions inventory is <tt>aircraft_nox_mod.f</tt>. Routine <tt>READAIR</tt> reads the files from disk at the start of each new month, and routine <tt>AIREMISS</tt> interpolates from the 1km vertical grid to the GEOS-3, GEOS-4, GEOS-5, or GCAP vertical grid.
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| − | For more information about the data files, please see the following READMEs:
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_0.5x0.666_CH/aircraft_NOx_200202/README GEOS_0.5x0.666_CH/aircraft_NOx_200202/README]
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_2x2.5/aircraft_NOx_200202/README GEOS_2x2.5/aircraft_NOx_200202/README]
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_4x5/aircraft_NOx_200202/README GEOS_4x5/aircraft_NOx_200202/README]
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| − | --[[User:Bmy|Bob Y.]] 16:27, 25 February 2010 (EST)
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| − | | + | |
| − | ==== Known issues ====
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| − | Due to the [[Lightning_NOx_emissions#The common block bug fix|common block error described by Lee Murray]], in [[GEOS-Chem v7-04-13]] we have added a new module array (EMIS_AC_NOx) to "aircraft_nox_mod.f". The EMIS_AC_NOx array will be referenced in routine "setemis.f", which will pass the aircraft NOx emissions to the SMVGEAR solver. The old common-block array "GEMISNOX" will be removed.
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| − | | + | |
| − | === SO2 ===
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| − | From [http://acmg.seas.harvard.edu/publications/park2004.pdf ''Park et al'' <nowiki>[2004]</nowiki>]:
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| − | | + | |
| − | <blockquote>Other anthropogenic sources of SO2 in the model include gridded monthly aircraft emissions (0.07 Tg S/yr)
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| − | taken from ''Chin et al.'' [2000a] ...</blockquote>
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| − | | + | |
| − | The aircraft emissions for SO2 are read from disk by routine <tt>READ_AIRCRAFT_SO2</tt> in module <tt>sulfate_mod.f</tt>.
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| − | For more information about the data files, please see the following READMEs:
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_0.5x0.666_CH/sulfate_sim_200508/README GEOS_0.5x0.666_CH/sulfate_sim_200508/README]
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_0.5x0.666_NA/sulfate_sim_200508/README GEOS_0.5x0.666_NA/sulfate_sim_200508/README]
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_2x2.5/sulfate_sim_200508/README GEOS_2x2.5/sulfate_sim_200508/README]
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| − | # [ftp://ftp.as.harvard.edu/pub/geos-chem/data/GEOS_4x5/sulfate_sim_200508/README GEOS_4x5/sulfate_sim_200508/README]
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| − | --[[User:Bmy|Bob Y.]] 16:45, 25 February 2010 (EST)
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| − | == References ==
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| − | #Barrett, S., et al, ''Guidance on the use of AEDT Gridded Aircraft Emissions in Atmospheric Models Version 2.0'', <u>Federal Aviation Administration</u>, Washington DC, August 17, 2010. [http://acmg.seas.harvard.edu/geos/wiki_docs/emissions/AEDT_Guidance_v2.0.pdf PDF]
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| − | #Baughcum, S.L., T.G. Tritz, S.C. Henderson, and D.C. Pickett, ''Scheduled civil aircraft emission inventories for 1992: Database development and analysis'', <u>NASA CR-4700</u>, Nat. Aeronaut. and Space Admin., Washington DC, 1996.
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| − | #Chin, M., P. Ginoux, S. Kinne, O. Torres, B. Holben, B. N. Duncan, R. V. Martin, J. A. Logan, A. Higurashi, and T. Nakajima, ''Tropospheric aerosol optical thickness from the GOCART model and comparisons with satellite and sunphotometer measurements'', <u>J. Atmos. Sci.</u>, '''59''', 461–483, 2002.
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| − | #Metwally, M, ''Jet aircraft engine emissions database development--1992 military, charter, and nonscheduled traffic'', <u>NASA CR-4684</u>, Nat. Aeronaut. and Space Admin., Washington DC, 1995.
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| − | #Park, R. J., D. J. Jacob, B. D. Field, R. M. Yantosca, and M. Chin, ''Natural and transboundary pollution influences on sulfate-nitrate-ammonium aerosols in the United States: implications for policy'', <u>J. Geophys. Res.</u>, '''109''', D15204, 10.1029/2003JD004473, 2004. [http://acmg.seas.harvard.edu/publications/park2004.pdf PDF]
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| − | #Wang, Y., D.J. Jacob, and J.A. Logan, ''Global simulation of tropospheric O3-NOx-hydrocarbon chemistry, 1. Model formulation'', <u>J. Geophys. Res.</u>, '''103''', D9,10,713-10,726, 1998. [http://acmg.seas.harvard.edu/publications/wang1998a.pdf PDF]
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| − | --[[User:Bmy|Bob Y.]] 13:46, 4 April 2011 (EDT)
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