Proceedings ArticleDOI
Pure rotational raman lidar for the measurement of vertical profiles of temperature in the lower atmosphere
M. Satyanarayana,S. R. Radhakrishnan,B. Presennakumar,V. S. Murty,R. Bindhu +4 more
- Vol. 6409
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TLDR
The design and development of the new Raman lidar of the Space Physics Laboratory, Vikram Sarabhai Space Center is presented in this article, which can monitor atmospheric temperature, aerosol extinction coefficient, water vapor profile and clouds.Abstract:
The design and development of the new Raman lidar of the Space Physics Laboratory, Vikram Sarabhai Space
Centre is presented here. This station is located at 8 degrees 33 minutes N, 77 degrees E in India. This lidar can monitor atmospheric temperature
(using Pure Rotational Raman Spectrum), aerosol extinction coefficient, water vapor profile and clouds. Advantages of
Pure Rotational Raman method over Vibrational Raman method are presented with the result obtained using Vibrational
Raman lidar. Optical layout of the lidar system, PRRS method and aerosol extinction measurements are described
briefly.read more
Citations
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Proceedings ArticleDOI
Time-delay compensation in data-acquisition process for rotational Raman lidar
TL;DR: A measuring system is established, with a Digital Delay/Pulse Generator as the chief component, which is not usually used as a measuring instrument, which could reach about 50ps and the compensating method is provided to improve the positioning accuracy of the lidar system.
Lower atmospheric water vapour measurement at coastal Trivandrum (8.33°N, 77°E) using a high resolution Raman lidar
S. R. Radhakrishnan,M. Satyanarayana,V P Mahadevan Pillai,B Presennakumar,D Ramakrishna Rao,V S Murthy +5 more
TL;DR: In this paper, the vibrational Raman scattered signals of N 2 and H 2O were used for the measurement of atmospheric water vapour and aerosol extinction in the lower troposphere.
Proceedings ArticleDOI
Noise filtering of rotational Raman lidar using threshold amendment for atmospheric temperature measurement
TL;DR: In this paper, a rule is put forward and the measuring system is established to confirm the set threshold value corresponding to an actual one, making use of the amplitude fluctuation of square wave.
References
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Journal ArticleDOI
Atmospheric temperature measurements using a pure rotational Raman lidar
TL;DR: The use of a double-grating monochromator in the lidar for isolating two portions of the pure rotational Raman spectrum (PRRS) of N2 and O2 and suppressing the line of aerosol light scattering is experimentally shown to be very efficient.
Journal ArticleDOI
Atmospheric temperature profiles from lidar measurements of rotational Raman and elastic scattering
TL;DR: It is shown that the filter constraints of earlier techniques are removed thereby eliminating the need for the high rejection capability of spectrometers in this type of measurement.
Journal ArticleDOI
Temperature measurements made with a combined Rayleigh–Mie and Raman lidar
TL;DR: An improved method by which temperature can be derived from a combination of the Rayleigh -Mie return at 351-nm lidar channels and the Raman nitrogen return at 382-nm coffin channels is reported on.
Journal ArticleDOI
Atmospheric temperature measurement using a pure rotational Raman lidar: comment.
Journal ArticleDOI
Rotational vibrational–rotational Raman differential absorption lidar for atmospheric ozone measurements: methodology and experiment
TL;DR: A RVR Raman DIAL setup that uses a narrow-band interference-filter polychromator as the lidar receiver and it is shown that on further improvement of the receiver performance, ozone measurements in clouds are attainable with the filter-polychromator approach.