从全天OH图像序列中提取重力波结构的运动参数。

Extraction of motion parameters of gravity-wave structures from all-sky OH image sequences.

作者信息

Haque R, Swenson G R

机构信息

Department of Electrical and Computer Engineering, Electro-Optic Systems Laboratory, University of Illinois at Urbana, Champaign, 1308 Main Street, Urbana, Illinois 61801-2307, USA.

出版信息

Appl Opt. 1999 Jul 20;38(21):4433-42. doi: 10.1364/ao.38.004433.

DOI:10.1364/ao.38.004433

PMID:18323928

Abstract

We describe the application of a motion model to OH images collected by CCD cameras during three nights in February and April 1995 (3 February, 1 April, and 4 April) at the StarFire Optical Range, New Mexico. We used the instrument to take broadband images of OH Meinel bands at an altitude of 87 km to record the footprints of dynamics created by acoustic gravity waves in the mesosphere. We used the motion model to extract the velocity of the gravity waves from the images. The results of a total of 181 observations with the motion model were compared with a total of 189 observations obtained by manual estimation. We used these results to extract the intrinsic properties of the gravity waves. The mean intrinsic velocity for the three nights under consideration was 61.5 +/- 17.0 m/s with the motion model and 61.1 +/- 23.3 m/s with manual estimation.

摘要

我们描述了一种运动模型在1995年2月和4月的三个夜晚（2月3日、4月1日和4月4日）于新墨西哥州的星火光学靶场由电荷耦合器件（CCD）相机收集的OH图像中的应用。我们使用该仪器在87公里的高度拍摄OH迈内尔带的宽带图像，以记录中层大气中声重力波产生的动力学足迹。我们使用运动模型从图像中提取重力波的速度。将使用运动模型进行的总共181次观测结果与通过人工估计获得的总共189次观测结果进行了比较。我们利用这些结果来提取重力波的固有特性。在所考虑的三个夜晚，运动模型得出的平均固有速度为61.5±17.0米/秒，人工估计得出的平均固有速度为61.1±23.3米/秒。