ground based Raman Lidar
Characterization of atmospheric aerosol optical properties based on the combined use of a ground-based Raman lidar and an airborne optical particle counter in the framework of the Hydrological Cycle in the Mediterranean Experiment – Special Observation Period 1
... An optical particle counter (OPC), manufactured by GRIMM Aerosol Technik GmbH (model Sky-OPC 1.129), is used to measure the size-resolved particle number concentration dN/dr in the size range 0.25–32 µm. The sensor ...
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Calibration of a water vapour Raman lidar with a kite-based humidity sensor
... Incidentally, there is a long history of kite atmospheric sounding, which started with the “meteorographs” of Teis- serenc de Bort at Trappes, France, in 1898. Despite an im- pressive altitude range (up to 9800 m in ...
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Ground-based lidar and microwave radiometry synergy for high vertical resolution absolute humidity profiling
... active ground-based observations over recent ...ple, ground-based RL cannot provide information above and within optically thick clouds, as the radiation emitted by the lidar is ...
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Optimal estimation of water vapour profiles using a combination of Raman lidar and microwave radiometer
... of ground-based remote sensing sys- ...method based on a Kalman filter (Kalman, 1960; Kalman and Bucy, 1961) that incorporates current and past measurements followed by a statistical inversion that ...
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(Manuscript received 24 August 2005, in final form 6 December 2005) ABSTRACT
... In lidar systems, measurements are generally more difficult in the very near field where the overlap be- tween the transmitted laser beam and the field of view of the receiver telescope is not ...gen Raman ...
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A Raman lidar at La Reunion (20.8 S, 55.5 E) for monitoring water vapour and cirrus distributions in the subtropical upper
... from lidar instrument over a subtropical ...system lidar dataset, advan- tages and drawbacks have been pointed ...the lidar system permits the covering of a large altitude range, from the ...
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Retrieval of aerosol backscatter, extinction, and lidar ratio from Raman lidar with optimal estimation
... and ground-based radiometer observa- tions ...two-channel Raman lidar ...traditional Raman lidar technique that can make optimal use of the available infor- ...
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Water vapor observations up to the lower stratosphere through the Raman lidar during the Maïdo Lidar Calibration Campaign
... is based on thin-film tech- nology (Salasmaa and Kostamo, 1975) that uses dual H- Humicap sensors, which consist of a hydrophilic polymer film acting as dielectric of a capacitor applied on a glass sub- ...and ...
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Raman Lidar for Meteorological Observations, RALMO – Part 1: Instrument description
... 2011). Ground-based mi- crowave radiometers (Solheim, 1998 and references therein) and Fourier transform infrared radiometers (Schneider and Hase, 2009 and references therein) provide humidity profiles with ...
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1064 nm rotational Raman lidar for particle extinction and lidar-ratio profiling: cirrus case study
... different lidar techniques are available for the measurement of aerosol and cloud extinction profiles, the Raman lidar method (Ans- mann et ...Resolution Lidar (HSRL) technique (Ship- ley et ...
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Study and mitigation of calibration factor instabilities in a water vapor Raman lidar
... the lidar data, hence potentially achieving an agreement of 5 % with the best operationally used radiosondes, 1–2 % with ground- based humidity sensors, and 2–5 % with GPS IWV or ZWD data (Bock et ...
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Ground-based water vapor raman lidar measurements up to the upper troposphere and lower stratosphere for long-term monitoring
... the lidar cannot sample all altitudes down to the ground, the scaling of total water must be made care- fully and the lidar-blind lowest atmospheric layers must be taken into ...the lidar ...
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Ice crystal number concentration from lidar, cloud radar and radar wind profiler measurements
... zontal beam swinging every 30 min. This special observa- tion mode of the RWP was necessary to acquire direct mea- surements of both horizontal and vertical air motions with only one RWP available. A Polly XT ...
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Ceilometer aerosol profiling versus Raman lidar in the frame of the INTERACT campaign of ACTRIS
... instruments based on the lidar principle but eye-safe and generally lower in cost than ad- vanced research ...than lidar systems because of wider optical bandpass filters required to accommodate ...
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Satellite analysis of cloud characteristics at different temporal and spatial scales using visible and infrared wavelengths.
... Different techniques have also been proposed to classify cloud systems with multispectral imagery. Several cloud detection tests were used in the cloud mask algorithm, discriminating clear sky from clouds, which consid- ...
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Strategy implementation for the CTA Atmospheric monitoring program
... the ground, to the detector. Cherenkov light on the ground is peaked in the UV-blue region, and therefore molecular and aerosol extinction phenomena are ...includes Raman lidars and ceilometers, ...
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Lidar-based estimates of aboveground biomass in the continental US and Mexico using ground, airborne, and satellite observations
... This underestimation problem with the model variance component of the Ståhl et al. (2011) variance estimator, expected to be on the order of 2 – 4x given the ground-ALS and ALS-GLAS regression sample sizes in this ...
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Graphics algorithm for deriving atmospheric boundary layer heights from CALIPSO data
... distribution. Based on the graphics distribution of atmospheric particulate, the k-means method was used for the classification of the sample sequence and acquisition of the ...the ground-based ...
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Assessing lidar-based classification schemes for polar stratospheric clouds based on 16 years of measurements at Esrange, Sweden
... Abstract Lidar measurements of polar stratospheric clouds (PSCs) are commonly analyzed in classification schemes that apply the backscatter ratio and the particle depolarization ...instruments. Based on a ...
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Relative drifts and stability of satellite and ground-based stratospheric ozone profiles at NDACC lidar stations
... to lidar mea- surements in their respective coincident ...long-term ground- based and satellite sensors, which may be subject to some degradation during their ...
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