搜索结果: 1-14 共查到“地球科学总论 signal”相关记录14条 . 查询时间(0.093 秒)
Evaluation of the ECHAM family radiation codes performance in the representation of the solar signal
ECHAM family radiation codes solar signal
2014/12/19
Solar radiation is the main source of energy for the Earth's atmosphere and in many respects defines its composition, photochemistry, temperature profile and dynamics. The magnitude of the solar irrad...
Lidar signal simulation for the evaluation of aerosols in chemistry transport models
Lidar signal simulation the evaluation of aerosols chemistry transport models
2014/12/10
We present an adaptable tool, the OPTSIM (OPTical properties SIMulation) software, for the simulation of optical properties and lidar attenuated backscattered profiles (β') from aerosol concentrations...
The identification of a solar signal in climate records of the last 500 years using proxy and model-based analysis and the implications for natural climate variability
Satellite instruments car the solar constant solar energy output climate the climate warming
2014/10/22
There has been confirmation in the last two decades, through instrumental measurements onboard satellites, that the 'solar constant' does, as has long been hypothesized, vary. While there is no consen...
Separation of a Signal of Interest from a Seasonal Effect in Geophysical Data: I. El Niño/La Niña Phenomenon
El Niñ o/La Niñ a Climate, Seasonal
2013/3/7
Geophysical signals N of interest are often contained in a parent signal G that also contains a seasonal signal X at a known frequency fX. The general issues associated with identifying N and X and th...
VLF-LF radio signals collected at Bari (South Italy): a preliminary analysis on signal anomalies associated with earthquakes
VLF-LF radio signals a preliminary analysis signal anomalies earthquakes
2009/12/14
At the beginning of 2002 an OmniPAL receiver was put into operation at the Department of Physics of Bari University (Southern Italy). The electric field strength of five VLF-LF signals transmitted fro...
Ionosperic anomaly due to seismic activities–Part 1:Calibration of the VLF signal of VTX 18.2 KHz station from Kolkata and deviation during seismic events
seismic activities Calibration VLF signal VTX 18.2 KHz station Kolkata seismic events
2009/12/8
VLF signals are long thought to give away important information about the lithosphere-ionosphere coupling. In order to establish co-relations, if any, between the ionospheric activities and the earthq...
Statistical correlation of spectral broadening in VLF transmitter signal and low-frequency ionospheric turbulence from observation on DEMETER satellite
Statistical correlation spectral broadening VLF transmitter signal DEMETER satellite
2009/12/31
In our earlier papers we have found the effect of VLF transmitter signal depression over epicenters of the large earthquakes from observation on the French DEMETER satellite that can be considered as ...
Disturbances in a VLF radio signal prior the M=4.7 offshore Anzio (central Italy) earthquake on 22 August 2005
a VLF radio signal the M=4.7 offshore Anzio (central Italy) earthquake 22 August 2005
2009/12/30
On 22 August 2005 an earthquake with magnitude M=4.7 occurred in the Anzio (central Italy) offshore area. From 2002, a VLF-LF radio receiver is into operation in Bari (southern Italy). The intensity a...
Disturbances in a VLF radio signal prior the M=4.7 offshore Anzio (central Italy) earthquake on 22 August 2005
Disturbances VLF radio signal M=4.7 offshore Anzio earthquake
2010/1/4
On 22 August 2005 an earthquake with magnitude M=4.7 occurred in the Anzio (central Italy) offshore area. From 2002, a VLF-LF radio receiver is into operation in Bari (southern Italy). The intensity a...
Observation evidences of atmospheric Gravity Waves induced by seismic activity from analysis of subionospheric LF signal spectra
Observation evidences atmospheric Gravity Waves seismic activity LF signal spectra
2009/12/30
We analyze variations of the LF subionospheric signal amplitude and phase from JJY transmitter in Japan (F=40 kHz) received in Petropavlovsk-Kamchatsky station during seismically quiet and active peri...
Application of different signal analysis methods to the ULF data for the 1993 Guam earthquake
Application different signal analysis methods ULF data Guam earthquake
2009/12/30
Two different analysis methods; (1) mono-fractal analysis (based on Higuchi method) and (2) flicker noise spectroscopy, have been applied to the same ULF (frequency less than 10 Hz) electromagnetic da...
Electric signal emissions during repeated abrupt uniaxial compressional stress steps in amphibolite from KTB drilling
Electric signal emissions abrupt uniaxial compressional stress steps KTB drilling
2009/12/30
Laboratory experiments have confirmed that the application of uniaxial stress on rock samples is accompanied by the production of weak electric currents, to which the term Pressure Stimulated Currents...
Evaluation of hydrological models for scenario analyses:signal-to-noise-ratio between scenario effects and model uncertainty
hydrological models scenario analyses signal-to-noise-ratio scenario effects model uncertainty
2010/1/25
Many model applications suffer from the fact that although it is well known that model application implies different sources of uncertainty there is no objective criterion to decide whether a model is...
Anomalies of LF signal during seismic activity in November–December 2004
Anomalies LF signal seismic activity
2009/12/28
A signal transmitted by Japan Time Standard LF station (40 kHz, Fukushima prefecture) and recorded in Petropavlovsk-Kamchatski (Russia) is analyzed during a time interval from 1 July 2004 till 24 Janu...