搜索结果: 1-9 共查到“理学 SABER”相关记录9条 . 查询时间(0.093 秒)
Dagger-like Canines of Saber-toothed Cats Took Years to Grow（图）
Dagger-like Canines Saber-toothed Cats Took Years
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2015/7/13
New research shows that the fearsome teeth of the saber-toothed cat Smilodon fatalis fully emerged at a later age than those of modern big cats, but grew at a rate about double that of their...
2003-2011年平流层顶抬升事件的SABER/TIMED观测
抬升的平流层顶 平流层突然增温 重力波 SABER
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2014/9/26
利用2003-2011年的SABER/TIMED温度数据观测发现，在2006年、2009年和2010年北半球高纬（70°N）的冬季（1-3月）发生了“平流层顶抬升”.在这3次事件中，1月末-2月初的~50 km和~80 km高度处分别出现了温度的极大值~260 K和~230 K，即平流层顶的高度突然由原来的50 km左右上升至80 km左右，这就是平流层顶抬升事件；随着时间的推移，抬升的平流层顶的...
COSMIC大气掩星与SABER/TIMED探测温度数据比较
COSMIC, 大气掩星 SABER/TIMED 温度, 比较
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2013/11/4
本文利用2009年1月—2011年12月共3年的COSMIC大气掩星观测数据与SABER/TIMED探测数据开展15~60 km大气温度数据的比较分析研究,计算COSMIC与SABER/TIMED探测温度的绝对偏差(TSABER-TCOSMIC),并统计其平均温度偏差和标准偏差,分析温度偏差随高度、纬度和季节的分布特征,为COSMIC大气掩星与SABER/TIMED探测数据的应用提供更多的参考依据...
本文利用TIMED卫星搭载的SABER探测仪对全球中间层顶信息进行了研究,包括中间层顶的高度、温度及其季节和纬度变化,并对双中间层顶现象进行了分析.中间层顶的温度约在160~180 K之间变化,高度在85~100 km内变化,温度和高度都是冬季高夏季低,有着较为一致的变化趋势.中间层顶高纬呈现显著年变化,而低纬和赤道呈现弱的半年变化,南北半球的中间层顶信息有着不对称性.高纬地区的双中间层顶现象十分...
Daytime ozone and temperature variations in the mesosphere: a comparison between SABER observations and HAMMONIA model
Daytime ozone temperature variations the mesosphere SABER observations HAMMONIA model
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2010/9/21
This paper investigates the latest version 1.07 SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) tropical ozone from the 1.27 μm as well as from the 9.6 μm retrieval and temperat...
Daytime SABER/TIMED observations of water vapor in the mesosphere: retrieval approach and first results
Daytime SABER/TIMED observations water vapor mesosphere
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2009/11/19
This paper describes a methodology for water vapor retrieval in the mesosphere-lower thermosphere (MLT) using 6.6 μm daytime broadband emissions measured by SABER, the limb scanning infrared radiomete...
Wave fluxes of equatorial Kelvin waves and QBO zonal wind forcing derived from SABER and ECMWF temperature space-time spectra
Wave fluxes equatorial Kelvin waves QBO zonal wind forcing SABER
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2009/6/22
The quasi-biennial oscillation (QBO) of the zonal mean zonal wind is a dynamical phenomenon of the tropical middle atmosphere. Influences of the QBO can even be found at mid and high latitudes. It is ...
Assimilation of stratospheric and mesospheric temperatures from MLS and SABER into a global NWP model
K. W. Hoppel N. L. Baker L. Coy
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2008/11/24
The forecast model and three-dimensional variational data assimilation components of the Navy Operational Global Atmospheric Prediction System (NOGAPS) have each been extended into the upper stratosph...
Equatorial wave analysis from SABER and ECMWF temperatures
Equatorial wave SABER ECMWF temperatures
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2008/10/30
Equatorial planetary scale wave modes such as Kelvin waves or Rossby-gravity waves are excited by convective processes in the troposphere. In this paper an analysis for these and other equatorial wav...