NOx Lifetime and NOy Partitioning During WINTER

Kenagy, Hannah S.; Sparks, Tamara L.; Ebben, Carlena J.; Wooldrige, Paul J.; Lopez‐Hilfiker, Felipe D.; Lee, Ben H.; Thornton, Joel A.; McDuffie, Erin E.; Fibiger, Dorothy L.; Brown, Steven S.; Montzka, Denise D.; Weinheimer, Andrew J.; Schroder, Jason C.; Campuzano‐Jost, Pedro; Day, Douglas A.; Jimenez, Jose L.; Dibb, Jack E.; Campos, Teresa; Shah, Viral; Jaeglé, Lyatt; Cohen, Ronald C.

doi:10.1029/2018jd028736

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

NOx Lifetime and NOy Partitioning During WINTER

2018
By Kenagy, Hannah S. ; Sparks, Tamara L. ; Ebben, Carlena J. ; ...
Source: Journal of Geophysical Research-Atmospheres, 123(17), 9813-9827.

[PDF-1.74 MB]

Details Related Documents You May Also Like

Details:

Journal Title:

Journal of Geophysical Research: Atmospheres
Personal Author:

Kenagy, Hannah S. ; Sparks, Tamara L. ; Ebben, Carlena J. ; Wooldrige, Paul J. ; Lopez‐Hilfiker, Felipe D. ; ... More +

Kenagy, Hannah S. ; Sparks, Tamara L. ; Ebben, Carlena J. ; Wooldrige, Paul J. ; Lopez‐Hilfiker, Felipe D. ; Lee, Ben H. ; Thornton, Joel A. ; McDuffie, Erin E. ; Fibiger, Dorothy L. ; Brown, Steven S. ; Montzka, Denise D. ; Weinheimer, Andrew J. ; Schroder, Jason C. ; Campuzano‐Jost, Pedro ; Day, Douglas A. ; Jimenez, Jose L. ; Dibb, Jack E. ; Campos, Teresa ; Shah, Viral ; Jaeglé, Lyatt ; Cohen, Ronald C. Less -
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)

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

Although urban NOx lifetimes have been examined extensively during summertime conditions, wintertime NOx chemistry has been comparatively less studied. We use measurements of NOx and its oxidation products from the aircraft-based WINTER (Wintertime INvestigation of Transport, Emissions, and Reactivity) experiment over the northeastern United States during February-March 2015 to describe the NOx lifetime during conditions when days are shorter, actinic flux is reduced, and temperatures are colder. By analyzing regional outflow from the East Coast, we show that NOx is long lived during the winter, with a longer daytime lifetime (29hr) than nighttime lifetime (6.3hr). We demonstrate that wintertime NOx emissions have an overall lifetime controlled by the nighttime conversion of NOx to nitric acid (HNO3) via N2O5 heterogeneous chemistry, and we discuss constraints on the rates of NOx conversion to HNO3. Additionally, analysis of the nighttime O-x budget suggests that approximately 15% of O-3 is lost overnight through N2O5 production and subsequent reaction with aerosol to form HNO3. Plain Language Summary The atmospheric lifetime (how long something persists in the atmosphere) and fate of nitrogen oxides in urban areas during the summer has been studied extensively, but relatively few studies have looked at the lifetime of nitrogen oxides in the atmosphere during winter. We use aircraft data from the East Coast of the United States during February-March 2015 to characterize the wintertime lifetime of nitrogen oxides when days are shorter, sunlight is reduced, and temperatures are colder. We are able to measure the wintertime lifetime of nitrogen oxides and assess the relative roles of mixing, deposition, and chemistry on their fate. We determine that nitrogen oxide loss during winter is dominated by nighttime rather than daytime chemistry and that this nighttime chemistry effectively removes ozone from the atmosphere.
Source:

Journal of Geophysical Research-Atmospheres, 123(17), 9813-9827.
DOI:

https://doi.org/10.1029/2018jd028736
Document Type:

Journal Article
Rights Information:

Other
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:2221b8e3cdf40354599710b2bbb791684775abc45f958495264c31f3ffb1fc18
Download URL:

https://staging-noaa.cdc.gov/view/noaa/21663/noaa_21663_DS1.pdf
File Type:

No Additional Files

More +

NOx Lifetime and NOy Partitioning During WINTER

Details:

Supporting Files

Related Documents

You May Also Like