LARGE-AMPLITUDE QUASI-PERIODIC FLUCTUATIONS ASSOCIATED WITH A MIDLATITUDE SPORADIC-E LAYER | |
KELLEY, MC; HUANG, CS; PFAFF, RF; SWARTZ, WE; PROVIDAKES, JF; RIGGIN, D | |
刊名 | JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS |
1995-08-01 | |
卷号 | 57期号:10页码:1165-1178 |
ISSN号 | 0021-9169 |
文献子类 | Article |
英文摘要 | For the first time a sounding rocket has been launched into a mid-latitude sporadic E event which was shown to be the source of VHF radar echoes. The layer had a very high peak electron density (similar to 10(6) cm(-3)) and was thicker (similar to 5 km) than most events previously studied by rockets and incoherent scatter radars. The layer was modulated in a remarkable quasi-periodic manner which has not been reported earlier. Twenty cycles of these structures were detected and they seem to be oriented horizontally rather than vertically with periods in the rocket frame in the rage 6-10 s. There is also some evidence that the modulation was detected below as well as above the peak in the electron density, although the bulk of the flight was above the peak. Although the VHF radar echoes were decaying at the time and place where the rocket traversed the E layer, one burst of high amplitude short wavelength fluctuations was detected by the space-borne instruments and had a power spectrum similar to that of a secondary gradient drift mode. This burst occurred at the peak of one of the periodic electron density fluctuations. We discuss two possible sources for the dominant fluctuations: large-scale gradient drift waves and atmospheric acoustic waves. The latter seem most consistent with the data. |
WOS关键词 | COLLISIONAL INTERCHANGE INSTABILITY ; RADAR INTERFEROMETER OBSERVATIONS ; PLASMA-DENSITY MEASUREMENTS ; EQUATORIAL ELECTROJET ; NUMERICAL SIMULATIONS ; SCALE IRREGULARITIES ; GRAVITY-WAVE ; SPREAD-F ; MU-RADAR ; FIELD |
WOS研究方向 | Meteorology & Atmospheric Sciences |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:A1995RL12300011 |
内容类型 | 期刊论文 |
源URL | [http://ir.wipm.ac.cn/handle/112942/12513] |
专题 | 中国科学院武汉物理与数学研究所 |
通讯作者 | KELLEY, MC |
作者单位 | 1.NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771 2.US DEF NUCL AGCY,RAAE,ALEXANDRIA,VA 22310 3.CHINESE ACAD SCI,WUHAN INST PHYS,WUHAN,PEOPLES R CHINA 4.MITRE CORP,BEDFORD,MA 01730 |
推荐引用方式 GB/T 7714 | KELLEY, MC,HUANG, CS,PFAFF, RF,et al. LARGE-AMPLITUDE QUASI-PERIODIC FLUCTUATIONS ASSOCIATED WITH A MIDLATITUDE SPORADIC-E LAYER[J]. JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS,1995,57(10):1165-1178. |
APA | KELLEY, MC,HUANG, CS,PFAFF, RF,SWARTZ, WE,PROVIDAKES, JF,&RIGGIN, D.(1995).LARGE-AMPLITUDE QUASI-PERIODIC FLUCTUATIONS ASSOCIATED WITH A MIDLATITUDE SPORADIC-E LAYER.JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS,57(10),1165-1178. |
MLA | KELLEY, MC,et al."LARGE-AMPLITUDE QUASI-PERIODIC FLUCTUATIONS ASSOCIATED WITH A MIDLATITUDE SPORADIC-E LAYER".JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS 57.10(1995):1165-1178. |
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