How are NH&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt; dry deposition estimates affected by combining the LOTOS-EUROS model with IASI-NH&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt; satellite observations?

Graaf, Shelley van der; Dammers, Enrico; Schaap, Martijn; Erisman, Jan Willem

doi:10.5194/acp-2018-133

Cited by 3 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The methods of using the vertical profiles to convert satellite-retrieved columns to surface concentrations have been proven successful for SO 2 and NO 2 (Geddes et al, 2016;Geng et al, 2015;Lamsal et al, 2008;Nowlan et al, 2014). CTMs can provide valuable information of NH 3 vertical profiles (Whitburn et al, 2016;Liu et al, 2017b), and IASI-derived surface NH 3 concentrations combining NH 3 vertical profiles from CTMs in China and Europe were evaluated previously (Liu et al, 2017b;Graaf et al, 2018). This study followed these studies to estimate the satellite-derived global surface NH 3 concentrations using IASI NH 3 retrievals and the vertical profiles from GEOS-Chem, and the present study aims to estimate the global surface NH 3 concentration from a satellite perspective.…”

Section: Introductionmentioning

confidence: 99%

Estimating global surface ammonia concentrations inferred from satellite retrievals

Liu¹,

Zhang²,

Wong³

et al. 2019

Preprint

View full text Add to dashboard Cite

Abstract. Ammonia (NH3), as an alkaline gas in the atmosphere, can cause direct or indirect effects on the air quality, soil acidification, climate change as well as human health. Estimating surface NH3 concentrations is critically important for modelling the dry deposition of NH3, which has important impacts on the natural environment. However, sparse monitoring sites make it challenging and difficult to understand the global distribution of surface NH3 concentrations both in time and space. We estimated the global surface NH3 concentrations for the years of 2008&#8211;2016 using the satellite NH3 observations combining its vertical profiles from the GEOS-Chem. The accuracy assessment indicates that the satellite-based approach has achieved a high predictive power for annual surface NH3 concentrations (R2&#8201;=&#8201;0.76 and RMSE&#8201;=&#8201;1.50&#8201;&#956;g&#8201;N&#8201;m-3). The satellite-derived surface NH3 concentrations had higher consistency with the ground-based measurements in China (R2&#8201;=&#8201;0.71 and RMSE&#8201;=&#8201;2.6&#8201;&#956;g&#8201;N&#8201;m-3) than the US (R2&#8201;=&#8201;0.45 and RMSE&#8201;=&#8201;0.76&#8201;&#956;g&#8201;N&#8201;m-3) and Europe (R2&#8201;=&#8201;0.45 and RMSE&#8201;=&#8201;0.86&#8201;&#956;g&#8201;N&#8201;m-3) at a yearly scale. Annual surface NH3 concentrations higher than 6&#8201;&#956;g&#8201;N&#8201;m-3 are mainly concentrated in the North China Plain of China and Northern India, followed by 2&#8211;6&#8201;&#956;g&#8201;N&#8201;m-3 mainly in southern and northeastern China, India, western Europe and eastern United States (US). High surface NH3 concentrations were found in the croplands in China, US and Europe, and surface NH3 concentrations in the croplands in China were approximately double than those in the croplands in the US and Europe. The liner trend analysis shows that a significant increase rate of surface NH3 concentrations (>&#8201;0.2&#8201;&#956;g&#8201;N&#8201;m-3&#8201;y-1) appeared in the eastern China during 2008&#8211;2016, and a middle increase rate (0.1&#8211;0.2&#8201;&#956;g&#8201;N&#8201;m-3&#8201;y-1) occurred in northern Xinjiang over China. NH3 increase was also found in agricultural regions in middle and eastern US with an annual increase rate of lower than 0.10&#8201;&#956;g&#8201;N&#8201;m-3&#8201;y-1. The satellite-derived surface NH3 concentrations help us to determine the NH3 pollution status in the areas without monitoring sites and to estimate the dry deposition of NH3 in the future.

show abstract

Section: Introductionmentioning

confidence: 99%

Estimating global surface ammonia concentrations inferred from satellite retrievals

Liu¹,

Zhang²,

Wong³

et al. 2019

Preprint

View full text Add to dashboard Cite

show abstract

“…For example, the GEOS-Chem ACTM includes 47 vertical layers from the earth surface to the top of the stratosphere. Most previous studies estimated the ratio of surface N r concentration (at the first layer) to total columns by an ACTM, and then multiply the ratio by satellite columns to estimate satellite-derived surface concentration (Geddes et al, 2016;Graaf et al, 2018;Nowlan et al, 2014).…”

Section: Conversion Of Satellite No 2 and Nh 3 Column To Surface N R mentioning

confidence: 99%

“…as zero (Graaf et al, 2018;Kharol et al, 2018) or set fixed values in each land use type based on ground-based measurements (Jia et al, 2016).…”

Section: Dry Deposition Of N Rmentioning

confidence: 99%

“…In Western Europe, Graaf et al (Graaf et al, 2018) used the ratio of the surface NH 3 concentration (in the bottom layer) to total NH 3 column from an ACTM to convert the IASI NH 3 column to surface NH 3 concentration, and then estimated dry NH 3 deposition combining the modeled deposition velocity and IASI-derived surface NH 3 concentration. Similarly, in North America, Kharol et al (Kharol et al, 2018) estimated the dry NH 3 deposition by the CrIS-derived surface NH 3 concentration and deposition velocity of NH 3 .…”

Section: Surface Nh 3 Concentration and Reduced N R Depositionmentioning

confidence: 99%

See 1 more Smart Citation

Reviewing Global Estimates of Surface Reactive Nitrogen Concentration and Deposition Using Satellite Observation

Liu¹,

Zhang²,

Xu³

et al. 2020

Preprint

View full text Add to dashboard Cite

Abstract. Since the industrial revolution, human activities have dramatically changed the nitrogen (N) cycle in natural systems. Anthropogenic emissions of reactive nitrogen (Nr) can return to the earth's surface through atmospheric Nr deposition. Increased Nr deposition may improve ecosystem productivity. However, excessive Nr deposition can cause a series of negative effects on ecosystem health, biodiversity, soil, and water. Thus, accurate estimations of Nr deposition are necessary for evaluating its environmental impacts. The United States, Canada and Europe have successively launched a number of satellites with sensors that allow retrieval of atmospheric NO2 and NH3 column density, and therefore estimation of surface Nr concentration and deposition at an unprecedented spatiotemporal scale. Atmosphere NH3 column can be retrieved from atmospheric infra-red emission measured by IASI, AIRS, CrIS or TES, while atmospheric NO2 column can be retrieved from reflected solar radiation measured by GOME, GOME-2, SCIAMACHY, OMI, TEMPO, Sentinel and GEMS. In recent years, scientists attempted to estimate surface Nr concentration and deposition using satellite retrieval of atmospheric NO2 and NH3 columns. In this study, we give a thorough review on recent advances of estimating surface Nr concentration and deposition using the satellite retrievals of NO2 and NH3, present a framework of using satellite data to estimate surface Nr concentration and deposition based on recent works, and summarize the existing challenges for estimating surface Nr concentration and deposition using the satellite-based methods. We believe that exploiting satellite data to estimate Nr deposition has a broad and promising prospect.

show abstract

Medellin Air Quality Initiative (MAUI)

Botero

Montoya

Restrepo

et al. 2021

Environmental Sustainability - Preparing for Tomorrow

View full text Add to dashboard Cite

This chapter book presents Medellín Air qUality Initiative or MAUI Project; it tells a brief story of this teamwork, their scientific and technological directions. The modeling work focuses on the ecosystems and human health impact due to the exposition of several pollutants transported from long-range places and deposited. For this objective, the WRF and LOTOS-EUROS were configurated and implemented over the región of interest previously updating some input conditions like land use and orography. By other side, a spinoff initiative named SimpleSpace was also born during this time, developing, through this instrumentation branch a very compact and modular low-cost sensor to deploy in new air quality networks over the study domain. For testing this instrument and find an alternative way to measure pollutants in the vertical layers, the Helicopter In-Situ Pollution Assessment Experiment HIPAE misión was developed to take data through the overflight of a helicopter over Medellín. From the data obtained from the Simple units and other experiments in the payload, a citogenotoxicity analysis quantify the cellular damage caused by the exposition of the pollutants.

show abstract

How are NH<sub>3</sub> dry deposition estimates affected by combining the LOTOS-EUROS model with IASI-NH<sub>3</sub> satellite observations?

Cited by 3 publications

References 9 publications

Estimating global surface ammonia concentrations inferred from satellite retrievals

Estimating global surface ammonia concentrations inferred from satellite retrievals

Reviewing Global Estimates of Surface Reactive Nitrogen Concentration and Deposition Using Satellite Observation

Medellin Air Quality Initiative (MAUI)

Contact Info

Product

Resources

About