Speciation of OH reactivity above the canopy of an isoprene-dominated forest

Kaiser, J.; Skog, K. M.; Baumann, K.; Bertman, S. B.; Brown, S. B.; Brune, W. H.; Crounse, J. D.; de Gouw, J. A.; Edgerton, E. S.; Feiner, P. A.; Goldstein, A. H.; Koss, A.; Misztal, P. K.; Nguyen, T. B.; Olson, K. F.; St Clair, J. M.; Teng, A. P.; Toma, S.; Wennberg, P. O.; Wild, R. J.; Zhang, L.; Keutsch, F. N.

doi:10.5194/acp-16-9349-2016

[PDF-1.27 MB]

Details:

Personal Author:

Kaiser, J. ; Skog, K. M. ; Baumann, K. ; Bertman, S. B. ; Brown, S. B. ; ... More ▼

NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; CSL (Chemical Sciences Laboratory) ;

Description:

Measurements of OH reactivity, the inverse lifetime of the OH radical, can provide a top-down estimate of the total amount of reactive carbon in an air mass. Using a comprehensive measurement suite, we examine the measured and modeled OH reactivity above an isoprene-dominated forest in the southeast United States during the 2013 Southern Oxidant and Aerosol Study (SOAS) field campaign. Measured and modeled species account for the vast majority of average daytime reactivity (80-95 %) and a smaller portion of nighttime and early morning reactivity (68-80 %). The largest contribution to total reactivity consistently comes from primary biogenic emissions, with isoprene contributing similar to 60% in the afternoon, and similar to 30-40% at night and monoterpenes contributing similar to 15-25% at night. By comparing total reactivity to the reactivity stemming from isoprene alone, we find that similar to 20% of the discrepancy is temporally related to isoprene reactivity, and an additional constant similar to 1 s(-1) offset accounts for the remaining portion. The model typically overestimates measured OVOC concentrations, indicating that unmeasured oxidation products are unlikely to influence measured OH reactivity. Instead, we suggest that unmeasured primary emissions may influence the OH reactivity at this site.

DOI:

http://dx.doi.org/10.5194/acp-16-9349-2016

Document Type:

Journal Article

Rights Information:

CC BY

Main Document Checksum:

[+]

File Type:

Supporting Files:

No Additional Files

The role of scientific expertise in local adaptation to projected sea level rise

[PDF - 1.09 MB]

Personal Author:

Hayes, A. L. ; Heery, E. C. ; ...

Published Date:

2018

Source:

Environmental Science & Policy, 87, 55-63.

Description:

Adaptation to sea level rise (SLR) is primarily taking place at the local level, with varied governments grappling with the diverse ways that SLR will...

File Type:

[PDF - 1.09 MB]

File Type:

[PDF - 1.09 MB]
Building evidence around ghost gear: Global trends and analysis for sustainable solutions at scale

[PDF - 1.13 MB]

Personal Author:

Richardson, K. ; Asmutis-Silvia, R. ; ...

Published Date:

2019

Source:

Marine Pollution Bulletin, 138, 222-229.

Description:

Abandoned, lost or discarded fishing gear (ALDFG) comprises a significant amount of global marine debris, with diverse impacts to marine environments,...

File Type:

[PDF - 1.13 MB]

File Type:

[PDF - 1.13 MB]
Southeast Atmosphere Studies: learning from model-observation syntheses

[PDF - 3.94 MB]

Personal Author:

Mao, J. Q. ; Carlton, A. ; ...

Published Date:

2018

Source:

Atmospheric Chemistry and Physics, 18(4), 2615-2651.

Description:

Concentrations of atmospheric trace species in the United States have changed dramatically over the past several decades in response to pollution cont...

File Type:

[PDF - 3.94 MB]

File Type:

[PDF - 3.94 MB]
Reviews and syntheses: Carbonyl sulfide as a multi-scale tracer for carbon and water cycles

[PDF - 8.05 MB]

Personal Author:

Whelan, M. E. ; Lennartz, S. T. ; ...

Published Date:

2018

Source:

Biogeosciences, 15(12), 3625-3657.

Description:

For the past decade, observations of carbonyl sulfide (OCS or COS) have been investigated as a proxy for carbon uptake by plants. OCS is destroyed by ...

File Type:

[PDF - 8.05 MB]

File Type:

[PDF - 8.05 MB]
Characterization of organic residues of size-resolved fog droplets and their atmospheric implications

[PDF - 724.45 KB]

Personal Author:

Chakraborty, A. ; Ervens, B. ; ...

Published Date:

2016

Source:

Journal of Geophysical Research-Atmospheres, 121(8), 4317-4332.

Description:

Size-resolved fog water samples were collected in two consecutive winters at Kanpur, a heavily polluted urban area of India. Samples were analyzed by ...

File Type:

[PDF - 724.45 KB]

File Type:

[PDF - 724.45 KB]
The Optical Autocovariance Wind Lidar. Part I: OAWL Instrument Development and Demonstration

[PDF - 3.13 MB]

Personal Author:

Tucker, S. C. ; Weimer, C. S. ; ...

Published Date:

2018

Source:

Journal of Atmospheric and Oceanic Technology, 35(10), 2079-2097.

Description:

We present the motivation, instrument concept, hardware descriptions, and initial validation testing for a Doppler wind lidar (DWL) system that uses o...

File Type:

[PDF - 3.13 MB]

File Type:

[PDF - 3.13 MB]
Evaluation of NO+ reagent ion chemistry for online measurements of atmospheric volatile organic compounds

[PDF - 807.52 KB]

Personal Author:

Koss, A. R. ; Warneke, C. ; ...

Published Date:

2016

Source:

Atmospheric Measurement Techniques, 9(7), 2909-2925.

Description:

NO+ chemical ionization mass spectrometry (NO+ CIMS) can achieve fast (1aEuro-Hz and faster) online measurement of trace atmospheric volatile organic ...

File Type:

[PDF - 807.52 KB]

File Type:

[PDF - 807.52 KB]
Influence of Common Assumptions Regarding Aerosol Composition and Mixing State on Predicted CCN Concentration

[PDF - 5.19 MB]

Personal Author:

Mahish, M. ; Jefferson, A. ; ...

Published Date:

2018

Source:

Atmosphere, 9(2), 18.

Description:

A 4-year record of aerosol size and hygroscopic growth factor distributions measured at the Department of Energy's Southern Great Plains (SGP) site in...

File Type:

[PDF - 5.19 MB]

File Type:

[PDF - 5.19 MB]
Observed NO/NO2 Ratios in the Upper Troposphere Imply Errors in NO-NO2-O-3 Cycling Kinetics or an Unaccounted NOx Reservoir

[PDF - 1.15 MB]

Personal Author:

Silvern, R. F. ; Jacob, D. J. ; ...

Published Date:

2018

Source:

Geophysical Research Letters, 45(9), 4466-4474.

Description:

Observations from the SEAC(4)RS aircraft campaign over the southeast United States in August-September 2013 show NO/NO2 concentration ratios in the up...

File Type:

[PDF - 1.15 MB]

File Type:

[PDF - 1.15 MB]
Internal Variability and Disequilibrium Confound Estimates of Climate Sensitivity From Observations

[PDF - 714.25 KB]

Personal Author:

Marvel, K. ; Pincus, R. ; ...

Published Date:

2018

Source:

Geophysical Research Letters, 45(3), 1595-1601.

Description:

An emerging literature suggests that estimates of equilibrium climate sensitivity (ECS) derived from recent observations and energy balance models are...

File Type:

[PDF - 714.25 KB]

File Type:

[PDF - 714.25 KB]
Potential limitations of behavioral plasticity and the role of egg relocation in climate change mitigation for a thermally sensitive endangered species

[PDF - 1.17 MB]

Personal Author:

Liles, M. J. ; Peterson, T. R. ; ...

Published Date:

2019

Source:

Ecology and Evolution, 9(4), 1603-1622.

Description:

Abstract Anthropogenic climate change is widely considered a major threat to global biodiversity, such that the ability of a species to adapt will det...

File Type:

[PDF - 1.17 MB]

File Type:

[PDF - 1.17 MB]
Chemistry of Volatile Organic Compounds in the Los Angeles Basin: Formation of Oxygenated Compounds and Determination of Emission Ratios

[PDF - 3.00 MB]

Personal Author:

de Gouw, J. A. ; Gilman, J. B. ; ...

Published Date:

2018

Source:

Journal of Geophysical Research-Atmospheres, 123(4), 2298-2319.

Description:

We analyze an expanded data set of oxygenated volatile organic compounds (OVOCs) in air measured by several instruments at a surface site in Pasadena ...

File Type:

[PDF - 3.00 MB]

File Type:

[PDF - 3.00 MB]
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 region

[PDF - 4.68 MB]

Personal Author:

Miles, N. L. ; Martins, D. K. ; ...

Published Date:

2018

Source:

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)...

File Type:

[PDF - 4.68 MB]

File Type:

[PDF - 4.68 MB]
Mapping Fishing Activities and Suitable Fishing Grounds Using Nighttime Satellite Images and Maximum Entropy Modelling

[PDF - 7.01 MB]

Personal Author:

Geronimo, R. C. ; Franklin, E. C. ; ...

Published Date:

2018

Source:

Remote Sensing, 10(10), 23.

Description:

Fisheries surveys over broad spatial areas are crucial in defining and delineating appropriate fisheries management areas. Yet accurate mapping and tr...

File Type:

[PDF - 7.01 MB]

File Type:

[PDF - 7.01 MB]
Doppler Lidar Observations of the Mixing Height in Indianapolis Using an Automated Composite Fuzzy Logic Approach

[PDF - 2.71 MB]

Personal Author:

Bonin, T. A. ; Carroll, B. J. ; ...

Published Date:

2018

Source:

Journal of Atmospheric and Oceanic Technology, 35(3), 473-490.

Description:

A Halo Photonics Stream Line XR Doppler lidar has been deployed for the Indianapolis Flux Experiment (INFLUX) to measure profiles of the mean horizont...

File Type:

[PDF - 2.71 MB]

File Type:

[PDF - 2.71 MB]
Flow rate and source reservoir identification from airborne chemical sampling of the uncontrolled Elgin platform gas release

[PDF - 2.99 MB]

Personal Author:

Lee, J. D. ; Mobbs, S. D. ; ...

Published Date:

2018

Source:

Atmospheric Measurement Techniques, 11(3), 1725-1739.

Description:

An uncontrolled gas leak from 25 March to 16 May 2012 led to evacuation of the Total Elgin wellhead and neighbouring drilling and production platforms...

File Type:

[PDF - 2.99 MB]

File Type:

[PDF - 2.99 MB]
Effects of temperature-dependent NOx emissions on continental ozone production

[PDF - 2.13 MB]

Personal Author:

Romer, P. S. ; Duffey, K. C. ; ...

Published Date:

2018

Source:

Atmospheric Chemistry and Physics, 18(4), 2601-2614.

Description:

Surface ozone concentrations are observed to increase with rising temperatures, but the mechanisms responsible for this effect in rural and remote con...

File Type:

[PDF - 2.13 MB]

File Type:

[PDF - 2.13 MB]
Shifting habitats expose fishing communities to risk under climate change

[PDF - 1014.08 KB]

Personal Author:

Rogers, L. A. ; Griffin, R. ; ...

Published Date:

2019

Source:

Nature Climate Change, 9(7), 512-516.

Description:

Climate change is expected to have a profound impact on the distribution, abundance and diversity of marine species globally1,2. These ecological impa...

File Type:

[PDF - 1014.08 KB]

File Type:

[PDF - 1014.08 KB]
Estimating regional-scale methane flux and budgets using CARVE aircraft measurements over Alaska

[PDF - 892.16 KB]

Personal Author:

Hartery, S. ; Commane, R. ; ...

Published Date:

2018

Source:

Atmospheric Chemistry and Physics, 18(1), 185-202.

Description:

Methane (CH4) is the second most important greenhouse gas but its emissions from northern regions are still poorly constrained. In this study, we anal...

File Type:

[PDF - 892.16 KB]

File Type:

[PDF - 892.16 KB]
Links Between Carbon Monoxide and Climate Indices for the Southern Hemisphere and Tropical Fire Regions

[PDF - 2.40 MB]

Personal Author:

Buchholz, R. R. ; Hammerling, D. ; ...

Published Date:

2018

Source:

Journal of Geophysical Research-Atmospheres, 123(17), 9786-9800.

Description:

In the Southern Hemisphere and tropics, the main contribution to carbon monoxide (CO) variability is from fire emissions, which are connected to clima...

File Type:

[PDF - 2.40 MB]

File Type:

[PDF - 2.40 MB]

Speciation of OH reactivity above the canopy of an isoprene-dominated forest

You May Also Like: