搜索结果: 1-13 共查到“大气物理学 Waves”相关记录13条 . 查询时间(0.13 秒)
Some recent papers proposed the use of the satellite images of Google Earth in teaching physics, in particular to see some behaviours of waves. Reflection, refraction, diffraction and interference are...
Experimental simulation of satellite observations of 100 kHz radio waves from relativistic electron beams above thunderclouds
satellite observations 100 kHz radio waves relativistic electron beams thunderclouds
2011/2/24
Relativistic electron beams above thunderclouds emit 100 kHz radio waves which illuminate the Earth's atmosphere and near-Earth space. This contribution aims to clarify the physical processes which ar...
Turbulence associated with mountain waves over Northern Scandinavia – a case study using the ESRAD VHF radar and the WRF mesoscale model
Turbulence mountain waves Northern Scandinavia the ESRAD VHF radar the WRF mesoscale model
2010/8/12
We use measurements by the 52 MHz wind-profiling radar ESRAD, situated near Kiruna in Arctic Sweden, and simulations using the Advanced Research and Weather Forecasting model, WRF, to study vertical w...
Excitation of waves at 2 ωp,e and back propagating waves at ωp,e:a parametric study
waves at 2 ωp,e back propagating waves at ωp,e parametric study
2009/11/12
We present a parametric study of electrostatic waves generated with angular frequencies 2 wp,e and - wp,e by an electron beam using a one-dimensional Vlasov code. We consider a background plasma consi...
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
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 ...
On the spectrum of vertically propagating gravity waves generated by a transient heat source
gravity waves transient heat source
2009/2/27
It is commonly believed that cumulus convection preferentially generates gravity waves with tropospheric vertical wavelengths approximately twice the depth of the convective heating. Individual cumulo...
Simultaneous lidar observations of temperatures and waves in the polar middle atmosphere on the east and west side of the Scandinavian mountains: a case study on 19/20 January 2003
Simultaneous lidar polar middle atmosphere Scandinavian mountains
2009/2/26
Atmospheric gravity waves have been the subject of intense research for several decades because of their extensive effects on the atmospheric circulation and the temperature structure. The U. Bonn lid...
Formation of ice supersaturation by mesoscale gravity waves
ice supersaturation mesoscale gravity waves
2009/2/9
We investigate the formation and evolution of an ice-supersaturated region (ISSR) that was detected by means of an operational radiosonde sounding launched from the meteorological station of Lindenbe...
Influence of mountain waves and NAT nucleation mechanisms on polar stratospheric cloud formation at local and synoptic scales during the 1999-2000 Arctic winter
mountain waves NAT nucleation mechanisms polar stratospheric cloud formation Arctic winter
2009/2/7
A scheme for introducing mountain wave-induced temperature pertubations in a microphysical PSC model has been developed. A data set of temperature fluctuations attributable to mountain waves as comput...
Investigation of inertia-gravity waves in the upper troposphere/lower stratosphere over Northern Germany observed with collocated VHF/UHF radars
inertia-gravity waves upper troposphere Northern Germany VHF/UHF radars
2009/2/5
A case study to investigate the properties of inertia-gravity waves in the upper troposphere/lower stratosphere has been carried out over Northern Germany during the occurrence of an upper tropospheri...
Wind-profiler observations of gravity waves produced by convection at mid-latitudes
Wind-profiler observations gravity waves convection mid-latitudes
2009/1/13
This work presents a case study which includes regions of large rapidly varying vertical velocities observed by a VHF wind-profiler at Aberystwyth (52.4° N, 4.1° W). Analysis indicates that this regio...
Small-scale gravity waves in ER-2 MMS/MTP wind and temperature measurements during CRYSTAL-FACE
Small-scale gravity waves ER-2 MMS/MTP wind temperature measurements CRYSTAL-FACE
2009/1/5
Lower stratospheric wind and temperature measurements made from NASA's high-altitude ER-2 research aircraft during the CRYSTAL-FACE campaign in July 2002 were analyzed to retrieve information on small...
Correlation between equatorial Kelvin waves and the occurrence of extremely thin ice clouds at the tropical tropopause
equatorial Kelvin waves extremely thin ice clouds tropical tropopause
2008/11/13
A number of field-campaigns in the tropics have been conducted in recent years with two different LIDAR systems at Paramaribo (5.8° N, 55.2° W), Suriname. The lidars detect particles in the atmosphere...