LIDAR measurement
Lidar measurement of planetary boundary layer height and comparison with microwave profiling radiometer observation
... to lidar measurement at SACOL-Main and SACOL-Lanzhou, ...the lidar data have higher time resolution (1 min), so the average BLH and entrainment zone thickness are cal- ...the lidar, the BLH is ...
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Impact of varying lidar measurement and data processing techniques in evaluating cirrus cloud and aerosol direct radiative effects
... the lidar measurement and retrieval techniques, as well as on the data processing ...involving lidar instruments, as well as for the GAW Atmospheric LIdar Observation Network (GALION; Hoff et ...
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Feedforward control for wind turbine load reduction with pseudo-LIDAR measurement
... modern measurement technique of LIDAR provides comprehensive and more accurate information on wind speed in a wide changing wind ...the LIDAR measurement, which is a challen- ging task due to ...
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Ground-based integrated path coherent differential absorption lidar measurement of CO 2: foothill target return
... tions were found. Figure 5a shows negative optical depths for the three shot pair cases at a range of 0 km, which raises the issue of calibration of absolute measurement of optical depth. The calibration is ...
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LiDAR measurement of seasonal snow accumulation along an elevation gradient in the southern Sierra Nevada, California
... aircraft LiDAR measurements for snow-depth mapping at high spatial resolution and vertical accuracy, using repeat snow-on and snow-off LiDAR flights (Deems et ...assess LiDAR accuracy and coverage in ...
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Development of a laser for differential absorption lidar measurement of atmospheric carbon dioxide
... on-line and off-line wavelengths must be chosen to avoid absorption lines of interfering molecules such as water and to minimize pressure and temperature dependencies. Secondly, the laser must be accurately tuned to the ...
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Validation of double-pulse 1572 nm integrated path differential absorption lidar measurement of carbon dioxide
... concentrations from space, the integrated path differential absorption (IPDA) lidar is proposed [1-3.] . Usually 1.57 μm and 2 μm wavelength laser sources are acted as the preferred transmitter for IPDA ...
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Information content and sensitivity of the 3 2lidar measurement system for aerosol microphysical retrievals
... model, measurement uncertainties, and the a priori ...the lidar retrieval al- gorithms described above are not OE algorithms, these tools can nevertheless be usefully applied to this problem to pro- vide ...
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Improved techniques for atmospheric ozone retrievals from lidar measurements using the Optimal Estimation Method and Machine Learning
... We successfully implemented supervised and unsupervised ML algorithms to classify lidar measurement scans. The ML is a robust method with high accuracy which enables us to pre- cisely classify thousands of ...
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Optical Measurement of Asian Dust over Daejeon City in 2016 by Depolarization Lidar in AD-Network
... The monitoring of Asian Dust has been performed with 2-wavelengths depolarization lidar in Daejeon station. Strong and long term sustained Asian dust had been measured during a period from April 22th to April ...
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Demonstration and uncertainty analysis of synchronised scanning lidar measurements of 2-D velocity fields in a boundary-layer wind tunnel
... WindScanner lidar measurement ...dual- lidar system can provide fully synchronised trajectory scans with sampling timescales ranging from seconds to ...2-D measurement capability of the ...
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1064 nm rotational Raman lidar for particle extinction and lidar-ratio profiling: cirrus case study
... GSFC lidar makes use of analog detection at 1064 nm, with a quantum efficiency a factor of almost 500 higher than the quantum efficiency (photon counting mode) of ...Raman lidar measurement in terms ...
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Quantifying TOLNet ozone lidar accuracy during the 2014 DISCOVER-AQ and FRAPPÉ campaigns
... original measurement design purposes, including their transmitter, re- ceiver, and signal processing ...multiple lidar data process- ing and retrieval algorithms could also lead to different ef- fective ...
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Measurement of atmospheric CO2 column concentrations to cloud tops with a pulsed multi-wavelength airborne lidar
... sunlight, e.g., the US Orbiting Carbon Observatory (OCO-2; Crisp et al., 2004) and the Japanese Greenhouse gases Ob- servation SATellite (GOSAT; Kuze et al., 2009), is limited to cloud-free pixels, where the photon path ...
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Novel aerosol extinction coefficients and lidar ratios over the ocean from CALIPSO–CloudSat: evaluation and global statistics
... the lidar equation solution with an independent estimate of aerosol optical depth ...CALIOP-based lidar ratios and aerosol extinction coeffi- cients over the nonpolar oceans are obtained by constrain- ing ...
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A new mobile and portable scanning lidar for profiling the lower troposphere
... scanning lidar is designed in the coaxial mode to re- duce the overlap height (∼ 260 m) between transmitter and ...traditional lidar systems, the laser transmitter and telescope rotated together while ...
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An algorithm to retrieve ice water content profiles in cirrus clouds from the synergy of ground-based lidar and thermal infrared radiometer measurements
... advanced lidar sys- tems which do not require such assumptions that can intro- duce large errors in the estimated cloud optical ...pulse lidar (combined with thermal infrared, TIR, radiance measurements) ...
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Fusing Digital Elevation Models to Improve Hydrological Interpretations
... to LiDAR elevation difference reduction was achieved by selecting the best-fitting Stage 1 and 2 permutations based on layer-to-layer differences in terms of averages, standard deviations, minimum and maximum ...
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Towards scale-invariant aboveground biomass estimation in Savanna ecosystems using small-footprint waveform lidar
... Field data for this research were collected from 10 sites in the study area, each 50 x 50 m in size. A total of 36 plots (2-5 meters variable radius) were laid out within each site on a 10 m spacing, resulting in a ...
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LiDAR-derived high quality ground control information and DEM for image orthorectification
... [18]. LiDAR data have high sampling density, and so the IDW approach was selected as the interpolator for our LiDAR data ...Meanwhile, LiDAR intensity data were also interpolated into a raster image ...
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