Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD025573 |
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 |
ISSN | 2169-897X |
EISSN | 2169-8996 |
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 |
推荐引用方式 GB/T 7714 | 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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