Atmospheric ammonia measurements at low concentration sites in the northeastern USA: implications for total nitrogen deposition and comparison with CMAQ estimates

Butler, Tom; Marino, Roxanne; Schwede, Donna; Howarth, Robert W.; Sparks, Jed P.; Sparks, Kim

doi:10.1007/s10533-014-0036-5

Cited by 21 publications

(16 citation statements)

References 44 publications

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“…This difference is larger than the differences found by Gilliland et al (2006) and Butler et al (2014). However, these studies differed from the current study in important ways.…”

Section: Satellite Retrievals Compared With In Situ Aircraft Measuremcontrasting

confidence: 94%

“…Smaller-scale analyses of the data suggested that the error may have been higher in the western U.S., however these results were unstable due to low precipitation rates. Butler et al (2014) evaluated CMAQ predictions in Susquehanna River Watershed of New York and Pennsylvania using ambient concentration measurements conducted in 2008 and 2009. The model estimates were lower than measured values by 8%e60%.…”

Section: Satellite Retrievals Compared With In Situ Aircraft Measuremmentioning

confidence: 99%

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Evaluating ammonia (NH3) predictions in the NOAA National Air Quality Forecast Capability (NAQFC) using in situ aircraft, ground-level, and satellite measurements from the DISCOVER-AQ Colorado campaign

Battye

Bray

Aneja

et al. 2016

Atmospheric Environment

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“…This difference is larger than the differences found by Gilliland et al (2006) and Butler et al (2014). However, these studies differed from the current study in important ways.…”

Section: Satellite Retrievals Compared With In Situ Aircraft Measuremcontrasting

confidence: 94%

Section: Satellite Retrievals Compared With In Situ Aircraft Measuremmentioning

confidence: 99%

Evaluating ammonia (NH3) predictions in the NOAA National Air Quality Forecast Capability (NAQFC) using in situ aircraft, ground-level, and satellite measurements from the DISCOVER-AQ Colorado campaign

Battye

Bray

Aneja

et al. 2016

Atmospheric Environment

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“…The study plot broadly fit the AM characterization, with small organic horizons and dominance of

{NO}_{3}^{-}

over DON in surface soil solutions (Goodale et al ., ). The second rationale was that regional analyses of tree growth in responses to N deposition show that the three main AM tree species at this site (white ash, sugar and red maple) all show significantly enhanced growth at the N deposition rates observed nearby (8–10 kg N ha −1 yr −1 ; Butler et al ., ); by contrast, of the six ECM species at this site, four (basswood, beech, black birch, and hemlock) showed no effect of N deposition on growth and two (red oak, quaking aspen) had moderate growth enhancements (Thomas et al ., ). Yet, 15 N tracer recoveries at this site showed nearly the opposite response: the ECM species that acquired the most 15 N (beech, hemlock, basswood, aspen; Table S1) were largely those that do not show regional N‐driven growth enhancements, while the AM species that do show these growth enhancements acquired little of this study's 15 N.…”

Section: Discussionmentioning

confidence: 71%

Multiyear fate of a¹⁵N tracer in a mixed deciduous forest: retention, redistribution, and differences by mycorrhizal association

Goodale

2016

Global Change Biology

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The impact of atmospheric nitrogen deposition on forest ecosystems depends in large part on its fate. Past tracer studies show that litter and soils dominate the short-term fate of added N, yet few have examined its longer term dynamics or differences among forest types. This study examined the fate of a N-NO3- tracer over 5-6 years in a mixed deciduous stand that was evenly composed of trees with ectomycorrhizal and arbuscular mycorrhizal associations. The tracer was expected to slowly mineralize from its main initial fate in litter and surface soil, with some N moving to trees, some to deeper soil, and some net losses. Recovery of added N in trees and litterfall totaled 11.3% both 1 and 5-6 years after the tracer addition, as N redistributed from fine and especially coarse roots into cumulative litterfall and small accumulations in woody tissues. Estimates of potential carbon sequestration from tree N recovery amounted to 12-14 kg C per kg of N deposition. Tree N acquisition occurred within the first year after the tracer addition, with no subsequent additional net transfer of N from detrital to plant pools. In both years, ectomycorrhizal trees gained 50% more of the tracer than did trees with arbuscular mycorrhizae. Much of the N recovered in wood occurred in tree rings formed prior to the N addition, demonstrating the mobility of N in wood. Tracer recovery rapidly decreased over time in surface litter material and accumulated in both shallow and deep soil, perhaps through mixing by earthworms. Overall, results showed redistribution of tracer N through trees and surface soils without any losses, as whole-ecosystem recovery remained constant between 1 and 5-6 years at 70% of the N addition. These results demonstrate the persistent ecosystem retention of N deposition even as it redistributes, without additional plant uptake over this timescale.

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“…Butler et al () found that CMAQ predictions of atmospheric NH 3 were 8% to 60% lower than measured values for the Susquehanna River Watershed of New York and Pennsylvania in 2008 and 2009. Kelly et al () evaluated CMAQ predictions of NH 3 and NH 4 + in airborne particulate matter as part of the California Research at the Nexus of Air Quality and Climate Change campaign in May and June of 2010.…”

Section: Resultsmentioning

confidence: 99%

Evaluating Ammonia (NH₃) Predictions in the NOAA NAQFC for Eastern North Carolina Using Ground Level and Satellite Measurements

et al. 2019

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Ammonia (NH3) in the atmosphere contributes to the formation of airborne fine particulate matter (PM2.5), which is associated with adverse human health effects. The emission, transport, reactions, and deposition of NH3 in the atmosphere are modeled using the Community Multiscale Air Quality (CMAQ) model, within the U.S. National Air Quality Forecast Capability (NAQFC). The purpose of this current work is to evaluate the capability of the NAQFC CMAQ model and to identify potential improvements to NH3 emissions estimates and prediction methods. This study focuses on CMAQ predictions of atmospheric NH3 in North Carolina, including a region with intensive animal production and enhanced NH3 emissions. The CMAQ model is run for July 2011 using a version of the 2011 National Emissions Inventory in which agricultural NH3 emissions were adjusted to reflect the lower end of the range of estimates from the current process‐based emissions model. The NAQFC CMAQ model overpredicted atmospheric NH3 at a continuous monitor in Clinton, NC, within the region of intensive animal production. The average concentration measured by the monitor was 6.6 ppbv, while the average predicted by the model was 10.5 ppbv, a 60% overprediction. Outside of the region of intensive animal production, both measured and modeled NH3 concentrations were low, 1.3 ppbv or less. The model underpredicted wet deposition of NH4+ and dry deposition of NH3. It is believed that the overestimation of NH3 at Clinton is attributable at least in part to the underestimation of wet and dry deposition in North Carolina.

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Atmospheric ammonia measurements at low concentration sites in the northeastern USA: implications for total nitrogen deposition and comparison with CMAQ estimates

Cited by 21 publications

References 44 publications

Evaluating ammonia (NH3) predictions in the NOAA National Air Quality Forecast Capability (NAQFC) using in situ aircraft, ground-level, and satellite measurements from the DISCOVER-AQ Colorado campaign

Evaluating ammonia (NH3) predictions in the NOAA National Air Quality Forecast Capability (NAQFC) using in situ aircraft, ground-level, and satellite measurements from the DISCOVER-AQ Colorado campaign

Multiyear fate of a¹⁵N tracer in a mixed deciduous forest: retention, redistribution, and differences by mycorrhizal association

Evaluating Ammonia (NH₃) Predictions in the NOAA NAQFC for Eastern North Carolina Using Ground Level and Satellite Measurements

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Atmospheric ammonia measurements at low concentration sites in the northeastern USA: implications for total nitrogen deposition and comparison with CMAQ estimates

Cited by 21 publications

References 44 publications

Evaluating ammonia (NH3) predictions in the NOAA National Air Quality Forecast Capability (NAQFC) using in situ aircraft, ground-level, and satellite measurements from the DISCOVER-AQ Colorado campaign

Evaluating ammonia (NH3) predictions in the NOAA National Air Quality Forecast Capability (NAQFC) using in situ aircraft, ground-level, and satellite measurements from the DISCOVER-AQ Colorado campaign

Multiyear fate of a15N tracer in a mixed deciduous forest: retention, redistribution, and differences by mycorrhizal association

Evaluating Ammonia (NH3) Predictions in the NOAA NAQFC for Eastern North Carolina Using Ground Level and Satellite Measurements

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Product

Resources

About

Multiyear fate of a¹⁵N tracer in a mixed deciduous forest: retention, redistribution, and differences by mycorrhizal association

Evaluating Ammonia (NH₃) Predictions in the NOAA NAQFC for Eastern North Carolina Using Ground Level and Satellite Measurements