Ground-based observations of noctilucent clouds with a northern hemisphere network of automatic digital cameras

被引:31
作者
Dalin, P. [1 ,2 ]
Pertsev, N. [3 ]
Zadorozhny, A. [4 ]
Connors, M. [5 ]
Schofield, I. [5 ]
Shelton, I. [5 ]
Zalcik, M. [6 ]
McEwang, T. [7 ]
McEachrang, I. [7 ]
Frandsen, S. [8 ]
Hansen, O. [9 ]
Andersen, H. [9 ]
Sukhodoev, V. [3 ]
Perminov, V. [3 ]
Romejko, V. [10 ]
机构
[1] Swedish Inst Space Phys, SE-98128 Kiruna, Sweden
[2] RAS, Space Res Inst, Moscow 117997, Russia
[3] RAS, AM Obukhov Inst Atmospher Phys, Moscow 119017, Russia
[4] Novosibirsk State Univ, Novosibirsk 630090, Russia
[5] Athabasca Univ Geophys Observ, Athabasca T9S 3A3, AB, Canada
[6] NLC CAN AM Network, Edmonton, AB T5C 1L6, Canada
[7] NLC NET, Glengarnock KA14 3BA, Ayrshire, Scotland
[8] Univ Aarhus, DK-8000 Aarhus C, Denmark
[9] Danish Assoc NLC Res, DK-7470 Kolvra, Karup J, Denmark
[10] Moscow Assoc NLC Res, Moscow 119334, Russia
关键词
noctilucent clouds; tides and planetary waves; mesospheric dynamics;
D O I
10.1016/j.jastp.2008.04.018
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
For the first time we present an analysis of observations of noctilucent clouds obtained with a network of automatic digital cameras located at opposite sides of the northern hemisphere. The advantage of this network is that the cameras are located along the same latitude circle producing comparable measurements. We find that there is an indication of the 2-day planetary wave propagation influencing the occurrence frequency, geographical distribution and brightness variations of noctilucent clouds. The 5-day planetary wave has much less effect on noctilucent clouds than that of the 2-day wave, at least for the summers of 2006 and 2007. At the same time, bright noctilucent clouds tend to occur every successive night during short periods of 3-5 nights. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1460 / 1472
页数:13
相关论文
共 34 条