GSTDTAP  > 气候变化
DOI10.1002/2016JD025573
Daily estimates of the migrating tide and zonal mean temperature in the mesosphere and lower thermosphere derived from SABER data
Ortland, David A.
2017-04-16
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2017
卷号122期号:7
文章类型Article
语种英语
国家USA
英文摘要

Satellites provide a global view of the structure in the fields that they measure. In the mesosphere and lower thermosphere, the dominant features in these fields at low zonal wave number are contained in the zonal mean, quasi-stationary planetary waves, and tide components. Due to the nature of the satellite sampling pattern, stationary, diurnal, and semidiurnal components are aliased and spectral methods are typically unable to separate the aliased waves over short time periods. This paper presents a data processing scheme that is able to recover the daily structure of these waves and the zonal mean state. The method is validated by using simulated data constructed from a mechanistic model, and then applied to Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) temperature measurements. The migrating diurnal tide extracted from SABER temperatures for 2009 has a seasonal variability with peak amplitude (20K at 95km) in February and March and minimum amplitude (less than 5K at 95km) in early June and early December. Higher frequency variability includes a change in vertical structure and amplitude during the major stratospheric warming in January. The migrating semidiurnal tide extracted from SABER has variability on a monthly time scale during January through March, minimum amplitude in April, and largest steady amplitudes from May through September. Modeling experiments were performed that show that much of the variability on seasonal time scales in the migrating tides is due to changes in the mean flow structure and the superposition of the tidal responses to water vapor heating in the troposphere and ozone heating in the stratosphere and lower mesosphere.


英文关键词migrating tides tide variability satellite data analysis
领域气候变化
收录类别SCI-E
WOS记录号WOS:000400172000004
WOS关键词PROPAGATING DIURNAL TIDE ; GENERALIZED HOUGH MODES ; SEASONAL-VARIATION ; MIDDLE ATMOSPHERE ; PLANETARY-WAVES ; SCALE WAVES ; WINDS ; VARIABILITY ; SATELLITE
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/33798
专题气候变化
作者单位NorthWest Res Associates, Redmond, WA 98052 USA
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Ortland, David A.. Daily estimates of the migrating tide and zonal mean temperature in the mesosphere and lower thermosphere derived from SABER data[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(7).
APA Ortland, David A..(2017).Daily estimates of the migrating tide and zonal mean temperature in the mesosphere and lower thermosphere derived from SABER data.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(7).
MLA Ortland, David A.."Daily estimates of the migrating tide and zonal mean temperature in the mesosphere and lower thermosphere derived from SABER data".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.7(2017).
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