气候变化领域集成服务门户(CCPortal): Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements

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DOI	10.1029/2020GL088621
	Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements
	Perrett J.A.; Wright C.J.; Hindley N.P.; Hoffmann L.; Mitchell N.J.; Preusse P.; Strube C.; Eckermann S.D.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:2
英文摘要	Gravity waves (GWs) are key drivers of atmospheric circulation. Understanding their sources and propagation is essential to improving weather and climate models. We apply a 3D Stockwell Transform to 1 month of stratospheric temperature data from NASA's Atmospheric InfraRed Sounder to obtain 3D GW measurements and parameters. We use ray-tracing methods to determine the sources and propagation characteristics of these GWs over the entire Southern Ocean. We trace 1.28 million GW measurements per day for the month of June 2010. Our analysis suggests that ground-based sources around the Andes, Antarctic Peninsula, and Kerguelen play major roles, and that the GWs generated by these and other sources travel large zonal distances. We show evidence that GWs propagate into the 60°S belt, a possible source of “missing momentum flux” in GCMs at this latitude. These results emphasize the need for models to incorporate the possibility that GWs can exhibit large horizontal propagation. © 2020. The Authors.
英文关键词	Climate models; Gravity waves; Infrared devices; Infrared instruments; Meteorology; NASA; Antarctic Peninsula; Atmospheric circulation; Atmospheric infrared sounders; Propagation characteristics; Southern Hemisphere; Stockwell transform; Stratospheric temperature; Weather and climate models; Ray tracing
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169191
作者单位	Centre for Space, Atmospheric and Oceanic Science, University of Bath, Bath, United Kingdom; Jülich Supercomputing Centre, Forschungszentrum Jülich, Jülich, Germany; Institute of Energy and Climate Research—Stratosphere, Forschungszentrum Jülich, Jülich, Germany; Space Science Division, U.S. Naval Research Laboratory, Washington, DC, United States
推荐引用方式 GB/T 7714	Perrett J.A.,Wright C.J.,Hindley N.P.,et al. Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements[J],2021,48(2).
APA	Perrett J.A..,Wright C.J..,Hindley N.P..,Hoffmann L..,Mitchell N.J..,...&Eckermann S.D..(2021).Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements.Geophysical Research Letters,48(2).
MLA	Perrett J.A.,et al."Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements".Geophysical Research Letters 48.2(2021).