Magnitude and Uncertainty of Nitrous Oxide Emissions From North America Based on Bottom-Up and Top-Down Approaches: Informing Future Research and National Inventories

Xu, R.; Tian, H.; Pan, N.; Thompson, R. L.; Canadell, J. G.; Davidson, E. A.; Nevison, C.; Winiwarter, W.; Shi, H.; Pan, S.; Chang, J.; Ciais, P.; Dangal, S. R. S.; Ito, A.; Jackson, R. B.; Joos, F.; Lauerwald, R.; Lienert, S.; Maavara, T.; Millet, D. B.; Raymond, P. A.; Regnier, P.; Tubiello, F. N.; Vuichard, N.; Wells, K. C.; Wilson, C.; Yang, J.; Yao, Y.; Zaehle, S.; Zhou, F.

doi:10.1029/2021GL095264

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Magnitude and Uncertainty of Nitrous Oxide Emissions From North America Based on Bottom-Up and Top-Down Approaches: Informing Future Research and National Inventories

2021
By Xu, R. ; Tian, H. ; Pan, N. ; ...
Source: Geophysical Research Letters 48(23): e2021GL095264
Series: 23

[PDF-1.73 MB]

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Details:

Journal Title:

Geophysical Research Letters
Personal Author:

Xu, R. ; Tian, H. ; Pan, N. ; Thompson, R. L. ; Canadell, J. G. ; ... More +

Xu, R. ; Tian, H. ; Pan, N. ; Thompson, R. L. ; Canadell, J. G. ; Davidson, E. A. ; Nevison, C. ; Winiwarter, W. ; Shi, H. ; Pan, S. ; Chang, J. ; Ciais, P. ; Dangal, S. R. S. ; Ito, A. ; Jackson, R. B. ; Joos, F. ; Lauerwald, R. ; Lienert, S. ; Maavara, T. ; Millet, D. B. ; Raymond, P. A. ; Regnier, P. ; Tubiello, F. N. ; Vuichard, N. ; Wells, K. C. ; Wilson, C. ; Yang, J. ; Yao, Y. ; Zaehle, S. ; Zhou, F. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office)

OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office) Less -
Description:

We synthesized N2O emissions over North America using 17 bottom-up (BU) estimates from 1980–2016 and five top-down (TD) estimates from 1998 to 2016. The BU-based total emission shows a slight increase owing to U.S. agriculture, while no consistent trend is shown in TD estimates. During 2007–2016, North American N2O emissions are estimated at 1.7 (1.0–3.0) Tg N yr−1 (BU) and 1.3 (0.9–1.5) Tg N yr−1 (TD). Anthropogenic emissions were twice as large as natural fluxes from soil and water. Direct agricultural and industrial activities accounted for 68% of total anthropogenic emissions, 71% of which was contributed by the U.S. Our estimates of U.S. agricultural emissions are comparable to the EPA greenhouse gas (GHG) inventory, which includes estimates from IPCC tier 1 (emission factor) and tier 3 (process-based modeling) approaches. Conversely, our estimated agricultural emissions for Canada and Mexico are twice as large as the respective national GHG inventories.
Keywords:

[+]

Air Quality Nitrous Oxide Greenhouse gas emissions
Source:

Geophysical Research Letters 48(23): e2021GL095264
Series:

23
DOI:

https://doi.org/10.1029/2021GL095264
Document Type:

Journal Article
Funding:

Grant no. NA13OAR4310086 ; Grant no. NA16NOS4780207 ; Grant no. NA16NOS4780204

Grant no. NA13OAR4310086 ; Grant no. NA16NOS4780207 ; Grant no. NA16NOS4780204 Less -
Place as Subject:

North America
Rights Information:

Other
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:48717ddc23bbbddcf5aaeb9b6869e4a3d469947806ab7ab549625400e2b16797
Download URL:

https://repository.library.noaa.gov/view/noaa/45568/noaa_45568_DS1.pdf
File Type:

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