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DOI | 10.5194/acp-18-9547-2018 |
Multi-static spatial and angular studies of polar mesospheric summer echoes combining MAARSY and KAIRA | |
Chau, Jorge L.1; McKay, Derek2,3; Vierinen, Juha P.2; La Hoz, Cesar2; Ulich, Thomas3; Lehtinen, Markku3; Latteck, Ralph1 | |
2018-07-06 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:13页码:9547-9560 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Norway; Finland |
英文摘要 | Polar mesospheric summer echoes (PMSEs) have been long associated with noctilucent clouds (NLCs). For large ice particles sizes and relatively high ice densities, PMSEs at 3 m Bragg wavelengths are known to be good tracers of the atmospheric wind dynamics and to be highly correlated with NLC occurrence. Combining the Middle Atmosphere ALOMAR Radar System (MAARSY) and the Kilpisjarvi Atmospheric Imaging Receiver Array (KAIRA), i.e., monostatic and bistatic observations, we show for the first time direct evidence of limited-volume PMSE structures drifting more than 90 km almost unchanged. These structures are shown to have horizontal widths of 5-15 km and are separated by 20-60 km, consistent with structures due to atmospheric waves previously observed in NLCs from the ground and from space. Given the lower sensitivity of KAIRA, the observed features are attributed to echoes from regions with high Schmidt numbers that provide a large radar cross section. The bistatic geometry allows us to determine an upper value for the angular sensitivity of PMSEs at meter scales. We find no evidence for strong aspect sensitivity for PMSEs, which is consistent with recent observations using radar imaging approaches. Our results indicate that multi-static all-sky interferometric radar observations of PMSEs could be a powerful tool for studying mesospheric wind fields within large geographic areas. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000437733900006 |
WOS关键词 | COMMON-VOLUME OBSERVATIONS ; NOCTILUCENT CLOUDS ; ASPECT SENSITIVITY ; POKER-FLAT ; VHF RADAR ; MST RADAR ; PMSE-OBSERVATIONS ; PLASMA RESPONSE ; MOTION FIELD ; EISCAT-VHF |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/17321 |
专题 | 地球科学 |
作者单位 | 1.Univ Rostock, Leibniz Inst Atmospher Phys, Kuhlungsborn, Germany; 2.Arctic Univ Norway, Univ Tromso, Tromso, Norway; 3.Sodankyla Geophys Observ, Sodankyla, Finland |
推荐引用方式 GB/T 7714 | Chau, Jorge L.,McKay, Derek,Vierinen, Juha P.,et al. Multi-static spatial and angular studies of polar mesospheric summer echoes combining MAARSY and KAIRA[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(13):9547-9560. |
APA | Chau, Jorge L..,McKay, Derek.,Vierinen, Juha P..,La Hoz, Cesar.,Ulich, Thomas.,...&Latteck, Ralph.(2018).Multi-static spatial and angular studies of polar mesospheric summer echoes combining MAARSY and KAIRA.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(13),9547-9560. |
MLA | Chau, Jorge L.,et al."Multi-static spatial and angular studies of polar mesospheric summer echoes combining MAARSY and KAIRA".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.13(2018):9547-9560. |
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