Journal ArticleDOI
Double-pulse dual-wavelength alexandrite laser for atmospheric water vapor measurement
TLDR
A new alexandrite laser source arrangement designed to measure atmospheric water vapor using the differential absorption lidar technique is described, capable of emitting two pulses at two appropriately selected wavelengths within a single flash lamp discharge.Abstract:
We describe a new alexandrite laser source arrangement designed to measure atmospheric water vapor using the differential absorption lidar technique. This laser is capable of emitting two pulses at two appropriately selected wavelengths within a single flash lamp discharge. A narrow spectral linewidth of Deltalambda < 1 pm is obtained for each pulse by intracavity filtering with a birefringent filter and two Fabry-Perot interferometers. Wavelength commutation between the two pulses is performed by electro-optically tuning the birefringent filter. The temporal separation between the two pulses can be chosen between 50 and 70 micros and each pulse duration is <250-ns (full width at half-maximum). Typical output energies of 50 mJ/pulse at each wavelength are obtained with this laser system at a 10-Hz repetition rate for a 1.3-kW input electrical power.read more
Citations
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Journal ArticleDOI
Ground-based differential absorption lidar for water-vapor profiling: assessment of accuracy, resolution, and meteorological applications
Volker Wulfmeyer,Jens Bösenberg +1 more
TL;DR: The results have contributed to the fact that the DIAL method has finally won recognition as an excellent tool for tropospheric research, in particular for boundary layer research and as a calibration standard for radiosondes and satellites.
Journal ArticleDOI
Airborne Lidar LEANDRE II for Water-Vapor Profiling in the Troposphere. I. System description.
TL;DR: The airborne differential absorption lidar LEANDRE II, developed for profiling tropospheric water-vapor mixing ratios, is described.
Journal ArticleDOI
Airborne remote sensing of tropospheric water vapor with a near-infrared differential absorption lidar system.
TL;DR: A near-infrared airborne differential absorption lidar (DIAL) system has become operational and horizontal and vertical water vapor profiles of the troposphere during summer (nighttime) conditions extending from the top of the planetary boundary layer (PBL) up to near the tropopause are investigated.
Journal ArticleDOI
NCAR–NOAA Lower-Tropospheric Water Vapor Workshop
Tammy M. Weckwerth,Volker Wulfmeyer,Roger M. Wakimoto,R. Michael Hardesty,James W. Wilson,Robert M. Banta +5 more
TL;DR: A workshop on remote sensing of lower-tropospheric water vapor, jointly sponsored by the National Center for Atmospheric Research (NCAR) and the National Oceanic and Atmospheric Administration, was held on 30 June and 1 July 1998 at NCAR in Boulder, Colorado as discussed by the authors.
Journal ArticleDOI
Ground-based differential absorption lidar for water-vapor and temperature profiling: development and specifications of a high-performance laser transmitter
TL;DR: It is demonstrated that this all-solid-state laser transmitter for a water-vapor and temperature differential absorption lidar (DIAL) system in the near infrared has, what is to my knowledge, the highest frequency stability, narrowest bandwidth, and highest spectral purity of all the laser transmitters developed to date in thenear infrared.
References
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Journal ArticleDOI
Airborne and spaceborne lidar measurements of water vapor profiles: a sensitivity analysis
Syed Ismail,Edward V. Browell +1 more
TL;DR: The analysis shows that a <10% H(2)O profile measurement accuracy is possible for the LASE system with a vertical and horizontal resolution of 200 m and 10 km, respectively, at night and 300 m and 20 km during the day.
Journal ArticleDOI
Water vapor differential absorption lidar development and evaluation.
TL;DR: Comparisons are made between the water vapor DIAL measurements and data obtained from locally launched rawinsondes, and agreement was found to be within the uncertainty of the rawinsonde data to an altitude of 3 km.
Journal ArticleDOI
Spectroscopy of water vapor in the 720-nm wavelength region - Line strengths, self-induced pressure broadenings and shifts, and temperature dependence of linewidths and shifts
TL;DR: In this paper, a high-resolution spectrometer incorporating a narrow linewidth tunable dye laser and two long pass absorption cells has been used to provide measurements of water vapor absorption line parameters in the 720-nm wavelength region.
Journal ArticleDOI
Three-stage birefringent filter tuning smoothly over the visible region: theoretical treatment and experimental design.
D. R. Preuss,James L. Gole +1 more
TL;DR: This theoretical study forms the basis for the design and construction of a three stage, quartz, birefringent filter to be used as the coarse tuning element in a visible cw dye laser.
Journal ArticleDOI
The High-Resolution Spectrum of Water Vapor between 11 600 and 12 750 cm-1
Jean-Marie Flaud,Claude Camy-Peyret,Alexander D. Bykov,Olga V. Naumenko,T. M. Petrova,A.P. Scherbakov,Leonid N. Sinitsa +6 more
TL;DR: In this paper, high-resolution Fourier transform spectra of water vapor between 13 200 and 16 500 cm −1 have been analyzed, leading to a precise and extensive set of line positions, line intensities, and rotational energy levels of highly excited vibrational states.
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Airborne and spaceborne lidar measurements of water vapor profiles: a sensitivity analysis
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Ground-based differential absorption lidar for water-vapor profiling: assessment of accuracy, resolution, and meteorological applications
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