Dual-Doppler lidar observation of horizontal convective rolls and near-surface streaks

被引：25

作者：

Iwai, Hironori ^{[1
]}

Ishii, Shoken ^{[1
]}

Tsunematsu, Nobumitsu ^{[1
]}

Mizutani, Kohei ^{[1
]}

Murayama, Yasuhiro ^{[1
]}

Itabe, Toshikazu ^{[1
]}

Yamada, Izumi ^{[5
]}

Matayoshi, Naoki ^{[3
]}

Matsushima, Dai ^{[4
]}

Weiming, Sha ^{[2
]}

Yamazaki, Takeshi ^{[2
]}

Iwasaki, Toshiki ^{[2
]}

机构：

[1] Natl Inst Informat & Commun Technol, Tokyo 1848795, Japan

[2] Tohoku Univ, Grad Sch Sci, Dept Geophys, Sendai, Miyagi 9808578, Japan

[3] Japan Aerosp Explorat Agcy, Tokyo 1008260, Japan

[4] Chiba Inst Technol, Fac Engn, Narashino, Chiba 2750016, Japan

[5] Elect Nav Res Inst, Tokyo 1820012, Japan

来源：

GEOPHYSICAL RESEARCH LETTERS | 2008年 / 35卷 / 14期

关键词：

D O I：

10.1029/2008GL034571

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Dual-Doppler lidar and heliborne sensors were used to investigate the three-dimensional ( 3D) structure of the wind field over Sendai Airport in June 2007. The 3D structures of several-hundred-meter-scale horizontal convective rolls ( HCRs) in the sea-breeze layer were observed by the dual-Doppler lidar. The scale of the HCRs determined by the heliborne sensors roughly agreed with that determined by the dual-Doppler lidar. Analysis of the dual-Doppler lidar data showed that the region of upward flow in the HCRs originated in near-surface low-speed streaks. This structure is consistent with the results of large-eddy simulations of the atmospheric boundary layer. The aspect ratios of the HCRs were close to those predicted by linear theories.

引用

页数：5

共 35 条

[1]

Browning KA., 1968, J APPL METEOROL, V7, P105, DOI [DOI 10.1175/1520-0450(1968)007<0105:TDOKPO>2.0.CO

[2]

2, 10.1175/1520-0450(1968)007andlt

[3]

0105:TDOKPOandgt

[4]

2.0.CO

[5]

2, DOI 10.1175/1520-0450(1968)007ANDLT

[6]

0105:TDOKPOANDGT

[7]

2.0.CO

[8]

[9]

Cressman G. P., 1959, Mon. Weather Rev., V87, P367, DOI [DOI 10.1175/1520-0493(1959)0872.0.CO

[10]

2, DOI 10.1175/1520-0493(1959)087<0367:AOOAS>2.0.CO

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