利用空间技术对平流层山脉波进行全球测量。

Global Measurements of Stratospheric Mountain Waves from Space.

作者信息

Eckermann SD, Preusse P

机构信息

E. O. Hulburt Center for Space Research, Naval Research Laboratory, Code 7641.2, Washington, DC 20375, USA. Department of Physics, University of Wuppertal, Gauss-Strasse 20, D-42097 Wuppertal, Germany.

出版信息

Science. 1999 Nov 19;286(5444):1534-1537. doi: 10.1126/science.286.5444.1534.

DOI:10.1126/science.286.5444.1534

PMID:10567253

Abstract

Temperatures acquired by the Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) during shuttle mission STS-66 have provided measurements of stratospheric mountain waves from space. Large-amplitude, long-wavelength mountain waves at heights of 15 to 30 kilometers above the southern Andes Mountains were observed and characterized, with vigorous wave breaking inferred above 30 kilometers. Mountain waves also occurred throughout the stratosphere (15 to 45 kilometers) over a broad mountainous region of central Eurasia. The global distribution of mountain wave activity accords well with predictions from a mountain wave model. The findings demonstrate that satellites can provide the global data needed to improve mountain wave parameterizations and hence global climate and forecast models.

摘要

在航天飞机STS - 66任务期间，用于大气的低温红外光谱仪和望远镜（CRISTA）所获取的温度数据提供了从太空对平流层山脉波的测量结果。在安第斯山脉南部上方15至30公里高度处观测到了大振幅、长波长的山脉波并对其进行了特征描述，推断在30公里以上存在强烈的波破碎现象。在欧亚大陆中部广阔的山区上空，整个平流层（15至45公里）也出现了山脉波。山脉波活动的全球分布与山脉波模型的预测结果吻合得很好。这些发现表明，卫星能够提供改善山脉波参数化所需的全球数据，从而改进全球气候和预报模型。