搜索结果: 1-11 共查到“地球科学总论 spectroscopy”相关记录11条 . 查询时间(0.046 秒)
Water vapor δ2H and δ18O measurements using off-axis integrated cavity output spectroscopy
Water vapor δ2H δ18O measurements cavity output spectroscopy
2010/1/22
We present a detailed assessment of a commercially available water vapor isotope analyzer (WVIA, Los Gatos Research, Inc.) for simultaneous in-situ measurements of δ2H and δ18O in water vapor. This me...
Flicker-noise spectroscopy in earthquake prediction research
Flicker-noise spectroscopy earthquake prediction research
2009/12/11
The problem of earthquake prediction and the methods of identification of geophysical precursory signals are discussed. To get information on the dynamics of earthquake preparation processes, fluctuat...
Assessment of the performance of a compact concentric spectrometer system for Atmospheric Differential Optical Absorption Spectroscopy
Assessment performance compact concentric spectrometer system Absorption Spectroscopy
2009/12/7
A breadboard demonstrator of a novel UV/VIS grating spectrometer has been developed based upon a concentric arrangement of a spherical meniscus lens, concave spherical mirror and curved diffraction gr...
Broadband Cavity Enhanced Differential Optical Absorption Spectroscopy (CE-DOAS) – applicability and corrections
Broadband Cavity Absorption Spectroscopy applicability corrections
2009/11/16
Atmospheric trace gas measurements by cavity assisted long-path absorption spectroscopy are an emerging technology. An interesting approach is the combination of CEAS with broadband light sources, the...
Intercomparison of peroxy radical measurements obtained at atmospheric conditions by laser-induced fluorescence and electron spin resonance spectroscopy
peroxy radical measurements atmospheric conditions laser-induced fluorescence electron spin resonance spectroscopy
2009/3/9
Measurements of hydroperoxy radical (HO2) and organic peroxy radical (RO2) concentrations were performed by two different techniques in the atmospheric simulation chamber SAPHIR in Jülich, Germany. Th...
Towards spatial assessment of carbon sequestration in peatlands:spectroscopy based estimation of fractional cover of three plant functional types
spatial assessment carbon sequestration peatlands fractional cover
2009/2/25
Peatlands accumulated large carbon (C) stocks as peat in historical times. Currently however, many peatlands are on the verge of becoming sources with their C sequestration function becoming sensitive...
Suitability of quantum cascade laser spectroscopy for CH4 and N2O eddy covariance flux measurements
Suitability quantum cascade laser spectroscopy CH4 N2O eddy covariance flux measurements
2007/8/31
A quantum cascade laser spectrometer was evaluated for eddy covariance flux measurements of CH4 and N2O using three months of continuous measurements at a field site. The required criteria for eddy co...
Reflectance spectroscopy of indoor settled dust in Tel Aviv, Israel: comparison between the spring and the summer seasons
Reflectance spectroscopy the spring and the summer seasons Tel Aviv, Israel
2007/7/4
The influence of mineral and anthropogenic dust components on the VIS-NIR-SWIR spectral reflectance of artificial laboratory dust mixtures was evaluated and used in combination with Partial Least Squa...
Space gravity spectroscopy:the benefits of Taylor-Karman structured criterion matrices
data validation 3D correlation tensor homogeneous and isotropic correlation functions Taylor-Karman structure CHAMP
2003/7/11
As soon as a space gravity spectroscopy was successfully performed, for instance by means of semicontinuous ephemeris of LEO - GPS tracked satellites, the problem of data validation appeared. It is fo...
Space Gravity Spectroscopy - determination of the Earth’s gravitational field by means of Newton interpolated LEO ephemeris Case studies on dynamic (CHAMP Rapid Science Orbit) and kinematic orbits
space gravity spectroscopy spherical harmonics series expansion GPS tracked LEO satellites kinematic
2003/7/11
An algorithm for the (kinematic) orbit analysis of a Low Earth Orbiting (LEO) GPS tracked satellite to determine the spherical harmonic coefficients of the terrestrial gravitational field is presented...
Quantitative Determination of Aluminum-Substituted Goethite-Hematite Mixtures by Mossbauer Spectroscopy
Aluminum Goethite Hematite Mossbauer spectroscopy Quantitative mineralogy
1986/6/1
Mixtures of synthetic Al-substituted goethite (α-Fe0.814Al0.186OOH) and hematite (α-Fe1.658Al0.342O3) (75, 50, 25, 3% hematite by weight) were studied by Mössbauer spectroscopy to evaluate the us...