Chemical Feedback From Decreasing Carbon Monoxide Emissions

被引：65

作者：

Gaubert, B. ^{[1
]}

Worden, H. M. ^{[1
]}

Arellano, A. F. J. ^{[2
]}

Emmons, L. K. ^{[1
]}

Tilmes, S. ^{[1
]}

Barre, J. ^{[1
]}

Alonso, S. Martinez ^{[1
]}

Vitt, F. ^{[1
]}

Anderson, J. L. ^{[3
]}

Alkemade, F. ^{[4
,5
]}

Houweling, S. ^{[4
,5
]}

Edwards, D. P. ^{[1
]}

机构：

[1] Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, POB 3000, Boulder, CO 80307 USA

[2] Univ Arizona, Dept Hydrol & Atmospher Sci, Tucson, AZ USA

[3] Natl Ctr Atmospher Res, Inst Math Appl Geosci, POB 3000, Boulder, CO 80307 USA

[4] SRON Netherlands Inst Space Res, Utrecht, Netherlands

[5] Univ Utrecht, Inst Marine & Atmospher Res, Utrecht, Netherlands

来源：

GEOPHYSICAL RESEARCH LETTERS | 2017年 / 44卷 / 19期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

tropospheric composition; data assimilation; global chemistry transport model; chemistry climate modeling; air pollution; DATA ASSIMILATION SYSTEM; ATMOSPHERIC CHEMISTRY; METHANE EMISSIONS; SATELLITE DATA; TROPOSPHERIC CHEMISTRY; DECADAL TRENDS; CLIMATE-CHANGE; GLOBAL-MODEL; CO EMISSIONS; FOSSIL-FUEL;

D O I：

10.1002/2017GL074987

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Understanding changes in the burden and growth rate of atmospheric methane (CH4) has been the focus of several recent studies but still lacks scientific consensus. Here we investigate the role of decreasing anthropogenic carbon monoxide (CO) emissions since 2002 on hydroxyl radical (OH) sinks and tropospheric CH4 loss. We quantify this impact by contrasting two model simulations for 2002-2013: (1) a Measurement of the Pollution in the Troposphere (MOPITT) CO reanalysis and (2) a Control-Run without CO assimilation. These simulations are performed with the Community Atmosphere Model with Chemistry of the Community Earth System Model fully coupled chemistry climate model with prescribed CH4 surface concentrations. The assimilation of MOPITT observations constrains the global CO burden, which significantly decreased over this period by similar to 20%. We find that this decrease results to (a) increase in CO chemical production, (b) higher CH4 oxidation by OH, and (c) similar to 8% shorter CH4 lifetime. We elucidate this coupling by a surrogate mechanism for CO-OH-CH4 that is quantified from the full chemistry simulations.

引用

页码：9985 / 9995

页数：11

共 90 条

[1] THE DATA ASSIMILATION RESEARCH TESTBED A Community Facility [J].

Anderson, Jeffrey ;

Hoar, Tim ;

Raeder, Kevin ;

Liu, Hui ;

Collins, Nancy ;

Torn, Ryan ;

Avellano, Avelino .

BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 2009, 90 (09) :1283-1296

[2]

Anderson JL, 2001, MON WEATHER REV, V129, P2884, DOI 10.1175/1520-0493(2001)129<2884:AEAKFF>2.0.CO

[3]

[4]

[Anonymous], YELL IBM IDATAPLEX S

[5] Evaluating model performance of an ensemble-based chemical data assimilation system during INTEX-B field mission [J].

Arellano, A. F., Jr. ;

Raeder, K. ;

Anderson, J. L. ;

Hess, P. G. ;

Emmons, L. K. ;

Edwards, D. P. ;

Pfister, G. G. ;

Campos, T. L. ;

Sachse, G. W. .

ATMOSPHERIC CHEMISTRY AND PHYSICS, 2007, 7 (21) :5695-5710

[6] Assessing the impacts of assimilating IASI and MOPITT CO retrievals using CESM-CAM-chem and DART [J].

Barre, Jerome ;

Gaubert, Benjamin ;

Arellano, Avelino F. J. ;

Worden, Helen M. ;

Edwards, David P. ;

Deeter, Merritt N. ;

Anderson, Jeffrey L. ;

Raeder, Kevin ;

Collins, Nancy ;

Tilmes, Simone ;

Francis, Gene ;

Clerbaux, Cathy ;

Emmons, Louisa K. ;

Pfister, Gabriele G. ;

Coheur, Pierre-Francois ;

Hurtmans, Daniel .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2015, 120 (19) :10501-10529

[7] TES on the Aura mission: Scientific objectives, measurements, and analysis overview [J].

Beer, R .

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2006, 44 (05) :1102-1105

[8] Monitoring of atmospheric composition using the thermal infrared IASI/MetOp sounder [J].

Clerbaux, C. ;

Boynard, A. ;

Clarisse, L. ;

George, M. ;

Hadji-Lazaro, J. ;

Herbin, H. ;

Hurtmans, D. ;

Pommier, M. ;

Razavi, A. ;

Turquety, S. ;

Wespes, C. ;

Coheur, P. -F. .

ATMOSPHERIC CHEMISTRY AND PHYSICS, 2009, 9 (16) :6041-6054

[9]

Cleveland R. B., 1990, J Off Stat, V6, P3

[10] DISCUSSION OF CHEMISTRY OF SOME MINOR CONSTITUENTS IN STRATOSPHERE AND TROPOSPHERE [J].

CRUTZEN, P .

PURE AND APPLIED GEOPHYSICS, 1973, 106 (5-7) :1385-1399

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