搜索结果: 31-45 共查到“理学 measurements”相关记录934条 . 查询时间(0.138 秒)
The anatomy of a tornillo: puzzles from three-component measurements at Galeras volcano (Colombia)
Galeras tornillo polarizations analytic function parametrization
2015/10/8
Many of the recent ash eruptions of Galeras volcano (Colombia) have been preceded by tornillos. These unusual seismic events of unknown origin have screw-like profiles on seismograms and can last up t...
Information on subsoil geological structure in the city of Catania (Eastern Sicily) from microtremor measurements
microtremors H/V technique sire response subsoil geological structure
2015/9/28
Nakamuras technique, or the H/V spectral ratio method, has been applied to microtremor measurements carried out in the urban area of Catania (Eastern Sicily) to obtain information on the geological st...
One year of tropospheri clidar measurements of aerosol extinction and backscatter
lidar EARLINET aerosol
2015/9/16
The aerosol lidar system operational at IMAA-CNR in Tito Scalo (PZ) (Southern Italy, 40°36'N, 15°44'E, 820 m
above sea level) is part of the EARLINET project. Systematic lidar measurements of aerosol...
A preliminary studyof the site-dependence of the multifractalfeatures of geoelectric measurements
self-potential signals multifractal formalism
2015/9/14
Multifractal analysis was performed to characterize the fluctuations in dynamics of the hourly time variability of self-potential signals measured from January 2001 to September 2002 by three stations...
Anomaly crust fields from MAGSAT satellite measurements:their processing and interpretation
MAGSAT satellite data magnetic andgravity anomalies wavelet and maximum entropyanalysis earthquake hypocenters
2015/9/14
The space distribution of the magnetic anomaly field for the Pacific Ocean is obtained from data of the satellite MAGSAT. A number of long-wavelength magnetic anomalies of the region are identified. A...
Ambient vibration measurements in the Southern Rhine Graben close to Basle
H/V ratio ambient vibration array analysis fundamental frequency Rhine Rift Valley
2015/9/11
This study presents results of ambient noise measurements from temporary single station and small-scale array deployments in the northeast of Basle. H/V spectral ratios were determined along various p...
Ionospheric Doppler measurements by means of HF-radar techniques
shift Doppler ionosphere plasma drift
2015/9/10
Studies of the dynamics of the ionosphere and its related phenomena are mainly based on Doppler Drift measurements. The time variation (ionisation/recombination) of plasma density, thermospheric wind ...
Deep Sea Gravity Measurements: GEOSTAR-2 Mission Results
seafloor gravimeter teleseismic waves
2015/9/7
A new concept gravity meter with sensitivity close to Hz ms / 10 2 8 ? ? in the range of 10 -5 ?1Hz intended for observation of the vertical component of the Earth gravity and
teleseismic waves was i...
Optical measurements of atmospheric particles from airborne platforms:in situ and remote sensing instruments for balloons and aircrafts
remote sensing LIDAR backscattersonde aerosol
2015/9/7
Multiwavelength laser backscattersondes (MAS) have been widely used from a variety of airborne platforms for in situ measurements of optical properties of clouds and atmospheric particulate as well as...
A multi-input UV-VIS airborne GASCOD/A4r spectroradiometer for the validation of satellite remote sensing measurements
UV-VIS instruments remote-sensing actinic measurements satellite data validation
2015/9/7
The present paper describes a UV-VIS spectroradiometer named GASCOD/A4r developed at ISAC-CNR for remote sensing measurements aboard stratospheric M55-Geophysica aircraft, flying up to 21 km. Obtained...
Morphology of F-region vertical E×B drifts in the African sector using ionosonde measurements
equatorial F-region ionospheric variability ionospheric modelling ionosonde observations ionospheric dynamics
2015/9/2
F-region vertical velocities are derived from the ground-based ionosonde data for Ibadan (7.4°N, 3.9°E; dip 6°S:
an equatorial station in the African zone), to study the general characteristics of el...
Indoor and soil radon measurements in the Hyblean Foreland (South-East Sicily)
radon uranium indoor air soil gas Hyblean Foreland
2015/9/2
Indoor radon behavior in two sites of SE Sicily was studied as a function of the soil radon concentration. The
chosen locations were Ragusa and Modica towns, placed in the Hyblean Plateau (northern m...
Millimeter wave spectroscopic measurements of stratospheric and mesospheric constituents over the Italian Alps: stratospheric ozone
millimeter-wave spectroscopy stratospheric ozone isentropic transport
2015/9/2
Measurements of rotational lines emitted by middle atmospheric trace gases have been carried out from the Alpine
station of Testa Grigia (45.9°N, 7.7°E, elev. 3500 m) by means of a Ground-Based Milli...
A network of tiltmeters has been operational on Vulcano Island for numerous years. At present, the network comprises five functioning borehole stations, four of which are installed at 8-10 m and allow...
Integrated geophysical measurements on a test site for detection of buried steel drums
Environmental pollution Buried steel drums Magnetometry
2015/8/27
Geophysical methods are increasingly used to detect and locate illegal waste disposal and buried toxic steel drums. This study describes the results of a test carried out in clayey-sandy ground where ...