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DOI | 10.1002/2016JD026008 |
Oblique propagation of monsoon gravity waves during the northern hemisphere 2007 summer | |
Thurairajah, Brentha1; Siskind, David E.2; Bailey, Scott M.1; Carstens, Justin N.1; Russell, James M., III3; Mlynczak, Martin G.4 | |
2017-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We present a combination of satellite observation and high-resolution model output to understand monsoon convection as a source of high-latitude mesospheric gravity waves (GWs). The GWs generated over the Northern Hemisphere (NH) monsoon region during the 2007 summer and the role of the winds in focusing these GWs toward the high-latitude middle atmosphere are analyzed using the Sounding of the Atmosphere using Broadband Emission Radiometry/Thermosphere Ionosphere Mesosphere Energetics and Dynamics (SABER/TIMED) satellite temperature data and the high-resolution Navy Operational Global Atmospheric Prediction System-Advanced Level Physics High Altitude (NOGAPS/ALPHA) model results. In the NH, above the stratosphere, the monsoon GW Momentum Flux (GWMF) exhibits a poleward tilt that follows the slanted structure of the easterly jet. The correlation coefficients (>0.5) between the time series of NH tropical stratospheric GWMF and the global winds also have a slanted structure that coincide with the easterly jet, confirming the modeling theory that stratospheric monsoon GWs are refracted into the summer easterly jet and can reach the high-latitude mesosphere. Since Polar Mesospheric Clouds (PMCs) are sensitive indicators of changes in the polar summer mesosphere, we compared the time series of tropical stratospheric GWMF to the PMC occurrence frequency (OF) obtained from the Cloud Imaging and Particle Size/Aeronomy of Ice in the Mesosphere satellite data to assess the influence of this wave focusing in the mesosphere. There is a significant positive correlation between the high-latitude PMC OF and the tropical stratospheric GWMF suggesting a definite influence of monsoon GWs on the high-latitude mesosphere. The disagreement in correlation at the end of the PMC season is attributed to the enhancement of the quasi 5 day planetary wave dominating over the influence of monsoon GWs on PMCs. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404131500002 |
WOS关键词 | PARTICLE-SIZE EXPERIMENT ; POLAR MESOSPHERIC CLOUDS ; MIDDLE ATMOSPHERE ; NOCTILUCENT CLOUDS ; SATELLITE LIMB ; MOMENTUM FLUX ; 2-DAY WAVE ; MODEL ; TEMPERATURE ; MESOPAUSE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33258 |
专题 | 气候变化 |
作者单位 | 1.Virginia Tech, Bradley Dept Elect & Comp Engn, Ctr Space Sci & Engn Res, Blacksburg, VA 24061 USA; 2.Naval Res Lab, Space Sci Div, Washington, DC 20375 USA; 3.Hampton Univ, Ctr Atmospher Sci, Hampton, VA 23668 USA; 4.NASA, Langley Res Ctr, Hampton, VA 23665 USA |
推荐引用方式 GB/T 7714 | Thurairajah, Brentha,Siskind, David E.,Bailey, Scott M.,et al. Oblique propagation of monsoon gravity waves during the northern hemisphere 2007 summer[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(10). |
APA | Thurairajah, Brentha,Siskind, David E.,Bailey, Scott M.,Carstens, Justin N.,Russell, James M., III,&Mlynczak, Martin G..(2017).Oblique propagation of monsoon gravity waves during the northern hemisphere 2007 summer.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(10). |
MLA | Thurairajah, Brentha,et al."Oblique propagation of monsoon gravity waves during the northern hemisphere 2007 summer".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.10(2017). |
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