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Citation
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HERO ID
4745985
Reference Type
Journal Article
Title
Dry deposition of reactive nitrogen from satellite observations of ammonia and nitrogen dioxide over North America
Author(s)
Kharol, SK; Shephard, MW; Mclinden, CA; Zhang, L; Sioris, CE; O'Brien, JM; Vet, R; Cady-Pereira, KE; Hare, E; Siemons, J; Krotkov, NA
Year
2018
Is Peer Reviewed?
Yes
Journal
Geophysical Research Letters
ISSN:
0094-8276
EISSN:
1944-8007
Publisher
AMER GEOPHYSICAL UNION
Location
WASHINGTON
Volume
45
Issue
2
Page Numbers
1157-1166
Language
English
DOI
10.1002/2017GL075832
Web of Science Id
WOS:000425514300075
Abstract
Reactive nitrogen (N-r) is an essential nutrient to plants and a limiting element for growth in many ecosystems, but it can have harmful effects on ecosystems when in excess. Satellite-derived surface observations are used together with a dry deposition model to estimate the dry deposition flux of the most abundant short-lived nitrogen species, NH3 and NO2, over North America during the 2013 warm season. These fluxes demonstrate that the NH3 contribution dominates over NO2 for most regions (comprising similar to 85% of their sum in Canada and similar to 65% in the U.S.), with some regional exceptions (e.g. Alberta and northeastern U.S.). Nationwide, similar to 51t of N from these species were dry deposited in the U.S., approximately double the similar to 28 t in Canada over this period. Forest fires are shown to be the major contributor of dry deposition of N-r from NH3 in northern latitudes, leading to deposition fluxes 2-3 times greater than from expected amounts without fires.
Tags
•
ISA NOxSOxPM Ecology (2020- Final Project Page)
Cited
Appendix 2
•
LitSearch-NOx (2024)
TIAB Screening
Atmospheric
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Transport Transformation
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