i
The impact of current CH4 and N2O atmospheric loss process uncertainties on calculated ozone abundances and trends
-
2015
Source: Journal of Geophysical Research-Atmospheres, 120(10), 5267-5293.
Select the Download button to view the document
This document is over 5mb in size and cannot be previewed
Details:
-
Journal Title:Journal of Geophysical Research: Atmospheres
-
Personal Author:
-
NOAA Program & Office:
-
Description:The atmospheric loss processes of N2O and CH4, their estimated uncertainties, lifetimes, and impacts on ozone abundance and long-term trends are examined using atmospheric model calculations and updated kinetic and photochemical parameters and uncertainty factors from Stratospheric Processes and their Role in Climate (SPARC) (2013). The uncertainty ranges in calculated N2O and CH4 global lifetimes computed using the SPARC estimated uncertainties are reduced by nearly a factor of 2 compared with uncertainties from Sander et al. (2011). Uncertainties in CH4 loss due to reaction with OH and O(D-1) have relatively small impacts on present-day global total ozone (0.2-0.5%). Uncertainty in the Cl+CH4 reaction affects the amount of chlorine in radical versus reservoir forms and has a modest impact on present-day southern hemisphere (SH) polar ozone (similar to 6%) and on the rate of past ozone decline and future recovery. Uncertainty in the total rate coefficient for the O(D-1)+N2O reaction results in a substantial range in present-day stratospheric odd nitrogen (20-25%) and global total ozone (1.5-2.5%). Uncertainty in the O(D-1)+N2O reaction branching ratio for the O-2+N-2 and 2NO product channels results in moderate impacts on odd nitrogen (+/- 10%) and global ozone (+/- 1%), with uncertainty in N2O photolysis resulting in relatively small impacts (+/- 5% in odd nitrogen, +/- 0.5% in global ozone). Uncertainties in the O(D-1)+N2O reaction and its branching ratio also affect the rate of past global total ozone decline and future recovery, with a range in future ozone projections of +/- 1-1.5% by 2100, relative to present day.
-
Source:Journal of Geophysical Research-Atmospheres, 120(10), 5267-5293.
-
Document Type:
-
Rights Information:Other
-
Compliance:Submitted
-
Main Document Checksum:urn:sha256:ca593c22092ade56fa39c5df45b901fab8242ce17d22bcd65dc9f3eb0183aff1
-
File Type:
Supporting Files
-
No Additional Files
More +
Related Documents
-
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
Injection of lightning-produced NOx, water vapor, wildfire emissions, and stratospheric air to the UT/LS as observed from DC3 measurementsCitePersonal Author:Huntrieser, H. ;Lichtenstern, M....2016 | Journal of Geophysical Research-Atmospheres, 121(11), 6638-6668.Description:During the Deep Convective Clouds and Chemistry (DC3) experiment in summer 2012, airborne measurements were performed in the anvil inflow/outflow of t...Personal Author:Jordan, C. E. ;Pszenny, A. A. P....2015 | Journal of Geophysical Research-Atmospheres, 120(2), 678-694.Description:The Nitrogen, Aerosol Composition, and Halogens on a Tall Tower campaign (February-March 2011) near Boulder, Colorado, investigated nighttime ClNO2 pr...The Optical Autocovariance Wind Lidar. Part II: Green OAWL (GrOAWL) Airborne Performance and ValidationCitePersonal Author:Baidar, S. ;Tucker, S. C....2018 | Journal of Atmospheric and Oceanic Technology, 35(10), 2099-2116.Description:A two-look airborne Doppler wind lidar operating at the 532-nm laser wavelength, the Green Optical Autocovariance Wind Lidar (GrOAWL), was built and f...Characteristic Atmospheric Radiative Heating Rate Profiles in Arctic Clouds as Observed at Barrow, AlaskaCitePersonal Author:Turner, D. D. ;Shupe, M. D....2018 | Journal of Applied Meteorology and Climatology, 57(4), 953-968.Description:A 2-yr cloud microphysical property dataset derived from ground-based remote sensors at the Atmospheric Radiation Measurement site near Barrow, Alaska...How Well Are Clouds Simulated over Greenland in Climate Models? Consequences for the Surface Cloud Radiative Effect over the Ice SheetCitePersonal Author:Lacour, A. ;Chepfer, H....2018 | Journal of Climate, 31(22), 9293-9312.Description:Using lidar and radiative flux observations from space and ground, and a lidar simulator, we evaluate clouds simulated by climate models over the Gree...The effect of atmospheric sulfate reductions on diffuse radiation and photosynthesis in the United States during 1995-2013CitePersonal Author:Keppel-Aleks, G. ;Washenfelder, R. A.2016 | Geophysical Research Letters, 43(18), 9984-9993.Description:Aerosol optical depth (AOD) has been shown to influence the global carbon sink by increasing the fraction of diffuse light, which increases photosynth...Non-OH chemistry in oxidation flow reactors for the study of atmospheric chemistry systematically examined by modelingCite2016 | Atmospheric Chemistry and Physics, 16(7), 4283-4305.Description:Oxidation flow reactors (OFRs) using low-pressure Hg lamp emission at 185 and 254 nm produce OH radicals efficiently and are widely used in atmospheri...Agricultural fires in the southeastern US during SEAC(4)RS: Emissions of trace gases and particles and evolution of ozone, reactive nitrogen, and organic aerosolCitePersonal Author:Liu, Xiaoxi ;Zhang, Y....2016 | Journal of Geophysical Research-Atmospheres, 121(12), 7383-7414.Description:Emissions from 15 agricultural fires in the southeastern U.S. were measured from the NASA DC-8 research aircraft during the summer 2013 Studies of Emi...Challenges and Opportunities for Data Assimilation in Mountainous EnvironmentsCite2018 | Atmosphere, 9(4), 13.Description:This contribution aims to summarize the current state of data assimilation research as applied to land and atmosphere simulation and prediction in mou...Explicit Convection and Scale-Aware Cumulus Parameterizations: High-Resolution Simulations over Areas of Different Topography in GermanyCitePersonal Author:Wagner, Andreas ;Heinzeller, Dominikus...2018 | Monthly Weather Review, 146(6), 1925-1944.Description:An increase in the spatial resolution of regional climate model simulations improves the representation of land surface characteristics and may allow ...Source Partitioning of Methane Emissions and its Seasonality in the US MidwestCite2018 | Journal of Geophysical Research-Biogeosciences, 123(2), 646-659.Description:The methane (CH4) budget and its source partitioning are poorly constrained in the Midwestern United States. We used tall tower (185m) aerodynamic flu...Strong Contrast in Remote Black Carbon Aerosol Loadings Between the Atlantic and Pacific BasinsCite2018 | Journal of Geophysical Research-Atmospheres, 123(23), 13386-13395.Description:Measurements of black carbon (BC) aerosol mass concentration in remote air are sparse, leading to poorly constrained regions that models struggle to r...Does vapor pressure deficit drive the seasonality of delta C-13 of the net land-atmosphere CO2 exchange across the United States?Cite2017 | Journal of Geophysical Research-Biogeosciences, 122(8), 1969-1987.Description:The seasonal pattern of the carbon isotope content (delta C-13) of atmospheric CO2 depends on local and nonlocal land-atmosphere exchange and atmosphe...Calibration and field testing of cavity ring-down laser spectrometers measuring CH4, CO2, and delta(CH4)-C-13 deployed on towers in the Marcellus Shale regionCite2018 | Atmospheric Measurement Techniques, 11(3), 1273-1295.Description:Four in situ cavity ring-down spectrometers (G2132-i, Picarro, Inc.) measuring methane dry mole fraction (CH4), carbon dioxide dry mole fraction (CO2)...Episodic Reversal of Autumn Ice Advance Caused by Release of Ocean Heat in the Beaufort SeaCite2018 | Journal of Geophysical Research-Oceans, 123(5), 3164-3185.Description:High-resolution measurements of the air-ice-ocean system during an October 2015 event in the Beaufort Sea demonstrate how stored ocean heat can be rel...Seasonal ozone vertical profiles over North America using the AQMEII3 group of air quality models: model inter-comparison and stratospheric intrusionsCite2018 | Atmospheric Chemistry and Physics, 18(19), 13925-13945.Description:This study evaluates simulated vertical ozone profiles produced in the framework of the third phase of the Air Quality Model Evaluation International ...Near-Surface Refractory Black Carbon Observations in the Atmosphere and Snow in the McMurdo Dry Valleys, Antarctica, and Potential Impacts of Foehn WindsCite2018 | Journal of Geophysical Research-Atmospheres, 123(5), 2877-2887.Description:Measurements of light-absorbing particles in the boundary layer of the high southern latitudes are scarce, particularly in the McMurdo Dry Valleys (MD...Personal Author:Mattila, James M. ;Brophy, Patrick...2018 | Atmospheric Chemistry and Physics, 18(16), 12315-12327.Description:We measured organic and inorganic gas-phase acids in the Front Range of Colorado to better understand their tropospheric sources and sinks using a hig...Emissions of nitrogen-containing organic compounds from the burning of herbaceous and arboraceous biomass: Fuel composition dependence and the variability of commonly used nitrile tracersCitePersonal Author:Coggon, Matthew M. ;Veres, Patrick R....2016 | Geophysical Research Letters, 43(18), 9903-9912.Description:Volatile organic compounds (VOCs) emitted from residential wood and crop residue burning were measured in Colorado, U.S. When compared to the emission...
More +
You May Also Like
- File Format:
- RIS
Estimates of ozone return dates from Chemistry-Climate Model Initiative simulations
Cite
2018 | Atmospheric Chemistry and Physics, 18(11), 8409-8438.
Description:
We analyse simulations performed for the Chemistry-Climate Model Initiative (CCMI) to estimate the return dates of the stratospheric ozone layer from ...