differential absorption lidar measurements
Estimation of background gas concentration from differential absorption lidar measurements
... infrared measurements at wavelengths of around 3 µm target a range of hydrocarbon gases, including methane that has a significant background concentration level (of the order of ...
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CH4 IPDA Lidar mission data simulator and processor for MERLIN: prototype development at LMD/CNRS/Ecole Polytechnique
... (Differential Absorption LIDAR) measurements using a pulsed laser emitting at two wavelengths, one wavelength accurately locked on a spectral feature of the methane absorption line, and ...
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Intercomparison of atmospheric water vapor soundings from the differential absorption lidar (DIAL) and the solar FTIR system on Mt. Zugspitze
... IWV measurements could be achieved (scatter plot with slope ≡ 1) by tuning the regularization strengths of a Tikhonov-based spectral inversion scheme applied to the FTIR data; this re- trieval has proved its ...
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3-D water vapor field in the atmospheric boundary layer observed with scanning differential absorption lidar
... For WV measurements passive and active remote sens- ing instruments as well as in situ sensors are available. In situ sensors only deliver data from one location at one time; thus, remote sensing instruments are ...
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Field-deployable diode-laser-based differential absorption lidar (DIAL) for profiling water vapor
... DIAL measurements of WV in the lower troposphere are ...vapor measurements with a diode-laser-based ...daytime measurements to approx- imately 3 ...
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A mobile differential absorption lidar to measure sub-hourly fluctuation of tropospheric ozone profiles in the Baltimore–Washington, D.C. region
... these measurements in the ultraviolet (UV) regime, es- pecially near the surface, is difficult due to the optically thick stratospheric ozone layer strongly attenuating the sig- nal (Fishman et ...ozone ...
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Near/Mid IR Differential Absorption OPO Lidar System for Gas Analysis of the Atmosphere
... OPO lidar system based on KTA and KTP crystals for gas analysis of the ...atmosphere. Lidar measurements of atmospheric gases in the near/mid infrared region have been numerically ...The ...
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A differential lidar system based on a xenon chloride laser
... the absorption between the two wavelengths c reates a re tu rn sig n al lev el d if f e r e n tia l, the weaker signal being a t a wavelength corresponding to the a b s o r p tio n peak on th e SOg spectrum ( f i ...
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Sensitivity studies for a space-based methane lidar mission
... space-based lidar measurements is influ- enced by a set of instrument, platform and geophysical (earth surface and atmosphere) ...airborne differential absorption lidar for profiling ...
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Ground-based integrated path coherent differential absorption lidar measurement of CO 2: foothill target return
... These measurements for the foothill target and atmospheric returns showed − ...Co2DiaWiL measurements for the foothill target and atmospheric returns and the 5 min running aver- ages of the in situ sensor ...
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Validation of double-pulse 1572 nm integrated path differential absorption lidar measurement of carbon dioxide
... high precision measurements are significant for understanding the carbon cycle and improving the climate forecast model. A more accurate and effective technique to measure global atmospheric CO 2 concentrations ...
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Differential absorption radar techniques: surface pressure
... instead, a region with stronger signal and minimal interfer- ence from other species. Promptly, several authors (Singer, 1968; Smith et al., 1972; Barton and Le Marshall, 1979; Korb and Weng, 1982) proposed to use the ...
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Development of a laser for differential absorption lidar measurement of atmospheric carbon dioxide
... avoid absorption lines of interfering molecules such as water and to minimize pressure and temperature ...off-line measurements and that any difference measured between the two lidar signals is due ...
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Characterizing a Quantum Cascade Tunable Infrared Laser Differential Absorption Spectrometer (QC-TILDAS) for measurements of atmospheric ammonia
... the measurements obtained by the QC-TILDAS were approxi- mately two times lower when the QC laser was being op- erated moderately high above threshold (by ∼ 2 ...
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Distinguishing cirrus cloud presence in autonomous lidar measurements
... The results of one study help bridge the gap between visual classification and digital interpretation. Sassen and Camp- bell (2001; hereafter SC2001) describe a midlatitude cirrus cloud climatology developed over more ...
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Synthesis, Characterization, DNA binding and spectral properties of complex [Ru(py)4(dppz)]2+
... The absorption spectra of complex shows three bands with comparable intensity as in fig-5, lying in the range of 200- ...broad absorption band centered at 360 nm, which is generally assigned to a singlet ...
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Evaluation of three lidar scanning strategies for turbulence measurements
... The spike filter developed by Højstrup (1993) and adapted by Vickers and Mahrt (1997) was used to flag outliers in the data. A 10 min window was shifted through the raw li- dar and sonic anemometer data, and any point ...
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Provenance Variation in Biomass potential for Improved Loblolly Pine (Pinus taeda) Families at a Piedmont Site in North Carolina.
... Traditional measurements of MOE involve a static bending test in which a wood section of fixed dimensions and moisture content is subjected to a known stress load (Mora et ...2007). Measurements of MOE with ...
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EARLINET: potential operationality of a research network
... aerosol lidar network whose key goal is the provision of a comprehensive, quantitative, and sta- tistically significant database on the spatial and temporal aerosol distribution on a continental scale (Bösenberg, ...
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Estimation of forest aboveground biomass and uncertainties by integration of field measurements, airborne LiDAR, and SAR and optical satellite data in Mexico
... or LiDAR sensors are commonly compared to the field-estimated AGB using semi-empirical regression models or machine learning algorithms to extrapolate over the entire remote sensing ...airborne LiDAR or ...
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