气候变化领域集成服务门户(CCPortal): Ammonia measurements from space with the Cross-track Infrared Sounder: Characteristics and applications

CCPortal

DOI	10.5194/acp-20-2277-2020
	Ammonia measurements from space with the Cross-track Infrared Sounder: Characteristics and applications
	W. Shephard M.; Dammers E.; E. Cady-Pereira K.; K. Kharol S.; Thompson J.; Gainariu-Matz Y.; Zhang J.; A. McLinden C.; Kovachik A.; Moran M.; Bittman S.; E. Sioris C.; Griffin D.; J. Alvarado M.; Lonsdale C.; Savic-Jovcic V.; Zheng Q.
发表日期	2020
ISSN	16807316
起始页码	2277
结束页码	2302
卷号	20 期号:4
英文摘要	Despite its clear importance, the monitoring of atmospheric ammonia, including its sources, sinks, and links to the greater nitrogen cycle, remains limited. Satellite data are helping to fill the gap in monitoring from sporadic conventional ground- and aircraft-based observations to better inform policymakers and assess the impact of any ammonia-related policies. Presented is a description and survey that demonstrate the capabilities of the Cross-track Infrared Sounder (CrIS) ammonia product for monitoring, air quality forecast model evaluation, dry deposition estimates, and emission estimates from an agricultural hotspot. For model evaluation, while there is a general agreement in the spatial allocation of known major agricultural ammonia hotspots across North America, the satellite observations show some high-latitude regions during peak forest fire activity often have ammonia concentrations approaching those in agricultural hotspots. The CrIS annual ammonia dry depositions in Canada (excluding the territories) and the US have average and annual variability values of $ĝ1/4 0.8 \pm 0.08$ and $ĝ1/4 1.23 \pm 0.09$ Tg N yr-1, respectively. These satellite-derived dry depositions of reactive nitrogen from NH3 with NO2 show an annual ratio of NH3 compared to their sum (NH3+NO2) of ĝ1/482 % and ĝ1/455 % in Canada and the US, respectively. Furthermore, we show the use of CrIS satellite observations to estimate annual and seasonal emissions near Lethbridge, Alberta, Canada, a region dominated by high-emission concentrated animal feeding operations (CAFOs); the satellite annual emission estimate of 37.1±6.3 kt yr-1 is at least double the value reported in current bottom-up emission inventories for this region. © 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
关键词	air quality ammonia atmospheric pollution carbon emission dry deposition nitrogen cycle satellite data satellite imagery North America Animalia
语种	英语
来源机构	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132215
推荐引用方式 GB/T 7714	W. Shephard M.,Dammers E.,E. Cady-Pereira K.,et al. Ammonia measurements from space with the Cross-track Infrared Sounder: Characteristics and applications[J]. Atmospheric Chemistry and Physics,2020,20(4).
APA	W. Shephard M..,Dammers E..,E. Cady-Pereira K..,K. Kharol S..,Thompson J..,...&Zheng Q..(2020).Ammonia measurements from space with the Cross-track Infrared Sounder: Characteristics and applications.,20(4).
MLA	W. Shephard M.,et al."Ammonia measurements from space with the Cross-track Infrared Sounder: Characteristics and applications".20.4(2020).