對全球QP回波觀測結果之整理與分析

以作者查詢圖書館館藏

、以作者查詢臺灣博碩士

、以作者查詢全國書目

、勘誤回報

、線上人數：58

、訪客IP：18.220.11.30

姓名

徐靖程(Jing-Cheng Hsu) 查詢紙本館藏

畢業系所

太空科學研究所

論文名稱

對全球QP回波觀測結果之整理與分析

相關論文

★ 利用中壢特高頻雷達觀測利奇馬颱風之波動現象	★ 電離層E層場沿不規則體地區特性之研究
★ 颱風對流系統之雷達個案分析	★ 中壢上空低高度準週期回波之探討
★ 利用福衛三號研究赤道波動現象	★ 利用剖風儀雷達分析台灣及帛琉地區的降水融解層特性
★ 利用衛星資料研究低平流層的重力波時空特性	★ 大氣重力波位能之時空分布及控因
★ 聖嬰現象與赤道大氣克耳文波之可能關聯

檔案

[Endnote RIS 格式]

[Bibtex 格式]

[相關文章]

[文章引用]

[完整記錄]

[館藏目錄]

[檢視]

[下載]

本電子論文使用權限為同意立即開放。
已達開放權限電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。

摘要(中)

而在赤道地區的不規則體的回波都為連續性回波(continuous radar echoes)這種回波不論是白天或晚上都有出現，且其不規則體的型態為型態１(type I)以及型態2(type II)兩種。早期在中緯度地區，由於雷達技術較不為發達，雖然有觀測到不同於連續性回波的雷達回波(即所謂的準週期性雷達回波，quasi-periodic radar echoes)，亦在RTI(range-time-intensity plot)圖上發現到這種回波有一2~15分鐘的出現週期，但是當時所用來觀測的雷達，其空間解析度均只有3~15公里。一直到日本的MU雷達的加入以後(空間解析度為600公尺)，才可以開始對種種的雷達回波做更進一步的研究。Yamamoto et al.,(1991)便是首位利用MU達觀測到準週期性回波的學者。這一類的回波在RTI圖上是間歇性的出現，而非連續性。而本論文之研究主要則是在於利用中壢VHf雷達對電離層散塊E層觀測實在RTI圖上所出現的準週期性回波做一進一步的分析與研究，並將在中壢所觀測道的準週期性回波與其他雷達所觀測到的準週期性回波做一比較與整理。

摘要(英)

The main purpose of this thesis is to do the research about the quasi-periodic radar echoes detected by Chung-Li VHF radar and Gadanki MST radar from radial Doppler velocity, range rate, periodicity, and spectral width. The results show that the periodicity decreases with increasing range rate and the direction of the radial Doppler velocity in the upper and the lower region of some QP striations detected by Gadanki
MST radar are opposite. Besides these two characteristics, we also find that the spread of Doppler velocities increases as the altitude coverage of the echoes increases. These three characteristics are shown to be consistent with the variations to be expected if the shears in the neutral wind and the variations in the background mean flow are the dominant
mechanisms controlling the initiation of the echo structures. Moreover, there are seven radar stations detect the phenomenon of QP echoes from 1991 to 1999,so we also compare the observation results between these seven different radars located in different latitude .

關鍵字(中)

★ QP回波

關鍵字(英)

★ QP

論文目次

第一章緒論………………………………………………………….1
§ 第一節電離層之定義以及其形成原因………………1
§ 第二節 Es層(sporadic E)的介………………………4
§ 第三節形成層的機制………………………………6
§ 第四節研究動機與內容………………………………8
第二章中壢特高頻雷達觀測電離層之設備以及參數簡介紹……12
§ 第一節天線系統……………………………………..12
§ 第二節電離層觀測參數及訊號處理流程…………..16
第三章觀測理論……………………………………………………17
§ 第一節場沿不規則體(field-aligned irregularities)的形態介紹…………………………………..17
§ 第二節產生小尺度不規則體的非線性理論………..21
§ 第三節準週期性回波的理論………………………..22
§ 第四節準週期性回波的特性………………………..31
第四章觀測資料的分析……………………………………………33
§ 第一節中性風對準週期性回波的貢獻……………..33
§ 第二節中壢VHF雷達觀測之準週期性回波………44
§ 第三節印度MST雷達觀測之準週期性回波………51
§ 第四節對目前全球出現之準週期性回波作一整理與比較…………………………………………59
第五章結論…………………………………………………………72
第六章參考文獻

參考文獻

Balsley, B.B. and D.T. Farley, some characteristics of non-two-stream irregularities in
the equatorial electrojet, J. Geophys. Res., 74, 2333, 1969.
Chapin, E., and E. Kudeki, Plasma wave excitation on meteor trails in the equatorial
electrojet, Geophys. Res. Lett., 21, 2433-2436, 1944.
Chau, J.L. and R.F. Woodman, Low-latitude quasi-periodic echoes observed with the
Piura VHF radar in the E region, Geophys. Res. Lett., 26, 2167, 1999.
Choudhary, R.K. and K.K. Mahajan, Tropical E region field aligned irregularities :
Simultaneous observations of continuous and quasiperiodic echoes, J. Geophys.
Res., 14, 2613, 1999.
Ecklund, W.L., D.A. Carter, and B.B. Balsley, Gradient drift irregularities in the mid-
latitude sporadic E, J. Geophys. Res., 86, 858, 1981.
Farley, D.T., A plasma instability resulting in Field-aligned irregularities in the
ionosphere, J. Geophys. Res., 68, 6083-6097, 1963.
Fukao, S., M. Yamamoto, R.T. Tsunoda, H. Hayakawa, and T. Mukai, The SEEK
(Sporadic-E Experiment over Kyushu) campaign, Geophys. Res. Lett., 25, 1761,
1998.
Hedin, A.E., et al., Revised global model of the thermosphere winds using satellite and groundbased observations, J. Geophys. Res., 104, 4361, 1999.
Haldoupis, C. and K. Schlegel, Characteristics of mid-latitude coherent backscatter
from the ionospheric E region obtained with Sporadic E Scatter experiment. J.
Geophys. Res., 101, 13,387, 1996.
Haldoupis, C., D.T. Farley, and K. Schlegel, Type I echoes from the mid-latitude E-
region ionosphere, Ann. Geophysicae, 15,908-917, 1997.
Huang, C.M., and Y.H. Chu, First observations of type I sporadic E irregularities in
the equatorial anomaly region using the Chung-Li radar, Geophys. Res. Lett., 25,
3779, 1998.
Hysell, D.L. and J.D. Burcham, HF radar observations of quasiperiodic E layer echoes
over North America, J. Geophys. Res., 104, 4361, 1999.
Kagan, L.M., and M.C. Kelley, A wind-driven gradient drift mechanism for mid-
latitude E-region ionosphric irregularities, Geophys. Res. Lett., 25, 4141, 1998.
Kelley, M.C., The Earth’s Ionosphere: Plasma Physics and Electrodynamics, 487pp.,
Academic, San Diego, Calif., 1989.
Larsen, M.F., A.B. Christensen, and C.D. Odom, Observed of unstable atmospheric
shear layers in the lower E region in the post-midnight auroral oval, Geophys. Res.
Lett., 24, 1915, 1997.
Larsen, M.F., S. Fukao, M. Yamamoto, R.T. Tsunoda, K. Igarashi, and T. Ono, The
SEEK chemical release experiment: Observed neutral wind profile in a region of
sporadic E, Geophys. Res. Lett., 25, 1789, 1998.
Larsen, M.F., S. Fukao, M. Yamamoto, R. Tsunoda, K. Jgarashi, and T. Ono, The
SEEK chemical release experiment Observed neutral wind profile in a region of
sporadic E, Geophys. Res. Lett.., 25(11), 1789, 1998.
Larsen, M.F., A shear instability seeding mechanism for quasi-periodic radar echoes,
submitted to J. Geophys. Res., 104, 1999a.
Ogawa, T., M. Yamamoto, and S. Fukao, Middle and upper atmosphere radar
observations of turbulence and movement of midlatitude sporadic E irregularities,
J. Geophys. Res., 100 ,12,173, 1995.
Ogawa, T., N. Sekito, K. Nozaki, and M. Yamamoto, Height comparison of
midlatitude E region field-aligned irregularities and sporadic E layer, Geophys.
Res. Lett., 25, 1813, 1998.
Pan, C.J., C.H. Liu, J. Roettger, S.Y. Su, and J.Y. Liu, E region observations over
Chung-Li during the SEEK campaign, Geophys. Res. Lett., 25, 1805, 1998.
Pan, C.J. and R.T. Tsunoda, Quasi-periodic echoes observed with the Chung-Li
VHF radar during the SEEK campaign, Geophys. Res. Lett., 25, 1809, 1998.
Pan, C.J. and R.T. Tsunoda, Semidiurnal behavior of quasi-periodic echoes in the
mid-latitude Es region observed with the Chung-Li VHF radar, Geophys. Res. Lett., 26, 2621, 1999.
Pan, C.J. and M.F. Larsen, Observations of QP radar echo structure consistent with
neutral wind shear control of the initiation mechanism, Geophys. Res. Lett., 27,
867, 2000.
Pfaff, R., M. Yamamoto, P. Marionni, H. Mori, and S. Fukao, Electric field
measurement above and within a sporadic-E layer, Geophys. Res. Lett., 25, 1769,
1998.
Riggin, D., W.E. Swartz, J. Providakes, and D.T. Farly, Radar studies of long-
wavelength waves associated with mid-latitude sporadic E layers, J. Geophys. Res.,
91, 8011-8024, 1986.
Rogister, A. and N. D’Angelo, Type II irregularities in the equatorial electrojet, J.
Geophys. Res., 75, 3879, 1970.
Schlegel, K. and C. Haldoupis, Observations of the modified two-stream plasma
instability in the mid-latitude E region ionosphere, J. Geophys. Res., 99, 6219,
1994.
Smith, L.G., and K.L. Miller, Sporadic-E layers and unstable wind shears, J. Atmos.
Terr. Phys., 42, 45-50, 1980.
Sudan, R.N., J. Akinrimisi and D.T. Farly, Generation of small-scale irregularities in
the equatorial electrojet, J. Geophys. Res., 78, 240248, 1973.
Tanaka, T., and S.V. Venkateswaran, Characteristics of field-aligned E-region
irregularities over Iioka( N), Japan-I, J. Atmos. Terr. Phys., 44, 381-393, 1982.
Tsunoda, R.T., On polarized frontal structures, type-1 and quasi-periodic echoes in
midlatitude sporadic E. Geophys. Res. Lett., 25, 2641, 1998.
Tsunoda, R.T., S. Fukao, M. Yamamoto, and T. Hamasaki, First-24.5 MHz radar
measurements of quasi-periodic backscatter from field-aligned irregularities in
midlatitude sporadic E, Geophys. Res. Lett., in press, 1998a.
Tsunoda, R.T., M. Yamamoto, K. Igarashi, K. Hocke, and S. Fukao, Quasi-periodic
radar echoes from midlatitude sporadic E and role of the 5-day planetary wave,
Geophys. Res. Lett., 25, 951, 1998.
Tsunoda, R.T., J.J. Buonocore, A. Saito, T. Kishimoto, S. Fukao, and M. Yamamoto,
First observations of quasi-periodic radar echoes from Stanford California,
Geophys. Res. Lett., 26, 995, 1999.
Tsunoda, R.T., S. Fukao, and M. Yamamoto, On the origin of quasi-periodic radar
backscatter from mid-latitude sporadic E, Radio Science, 29, 349, 1994.
Whitehead, J.D., The formation of the sporadic-E layer in the temperate zones, J.
Atmos. Terr. Phys., 20, 49, 1961.
Whitehead. J.D., Recent work on mid-latitude and equatorial sporadic E, J. Atmos.
Terr. Phys., 51, 401-424, 1989.
Woodman, R.F., M. Yamamoto, and S. Fukao, Gravity wave modulation of gradient
drift instabilities in mid-latitude sporidic E irregularities, Geophys. Res. Lett., 18,
1197, 1991.
Yamamoto, M., S. Fukao, R.F. Woodman, T. Ogawa, T. Tsuda, and S. Kato, Mid-
latitude E-region field-aligned irregularities observed with the MU radar, J.
Geophys. Res., 96, 15,963, 1991.
Yamamoto, M., S. Fukao, R.F. Woodman, T. Ogawa, T. Tsuda, and S. Kato, Mid-
latitude E region field aligned irregularities observed with the MU radar, J.
Geophys. Res., 96, 15,963, 1991.
Yamamoto, M., T. Itsuki, T. Kishimoto, R.T. Tsunoda, R.F. Pfaff, and S. Fukao,
Comparison of E-region electric fields observed with a sounding rocket and a
Doppler radar in the SEEK campaign, Geophys. Res. Lett., in press, 1998.
Yamamoto, M., T. Itsuki, T. Kihimoto, R.T. Tsunoda, R.F. Pfaff, and S. Sukao,
Comparison of E-region electric fields observed wuth a sounding rocket and a
Doppler radar in the SEEK campaign, Geophys. Res. Lett., 25, 1773, 1998.
Doppler radar in the SEEK campaign, Geophys. Res. Lett., 25, 1773, 1998.
王建亞，利用中壢VHF雷達進行電離層散塊E層不規則體之觀測，博士論文，國立中央大學太空科學研究所，1999。
朱延祥，MST雷達回波機制的研究，博士論文，國立中央大學大氣物理研究所，1988。

指導教授

潘貞杰(Chen-Jeih Pan)

審核日期

2000-7-5

推文