A Raman lidar to measure water vapor in the atmospheric boundary layer

Martin Froidevaux, Chad W. Higgins, Valentin Simeonov, Pablo Ristori, Eric Pardyjak, Ilya Serikov, Ronald Calhoun, Hubert van den Bergh, Marc B. Parlange

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

A new multi-telescope scanning Raman lidar designed to measure the water vapor mixing ratio in the atmospheric boundary layer for a complete diurnal cycle with high resolution spatial (1.25. m) and temporal (1. s) resolutions is presented. The high resolution allows detailed measurements of the lower atmosphere and offers new opportunities for evaporation and boundary layer research, atmospheric profiling and visualization. This lidar utilizes a multi-telescope design that provides for an operational range with a nearly constant signal-to-noise ratio, which allows for statistical investigations of atmospheric turbulence. This new generation ground-based water vapor Raman lidar is described, and first observations from the Turbulent Atmospheric Boundary Layer Experiment (TABLE) are presented. Direct comparison with in-situ point measurements obtained during the field campaign demonstrate the ability of the lidar to reliably measure the water vapor mixing ratio. Horizontal measurements taken with time are used to determine the geometric characteristics of coherent structures. Vertical scans are used to visualize nocturnal jet features, layered structures within a stably stratified atmosphere and the internal boundary layer structure over a lake.

Original languageEnglish (US)
Pages (from-to)345-356
Number of pages12
JournalAdvances in Water Resources
Volume51
DOIs
StatePublished - Jan 1 2013

Keywords

  • Atmospheric boundary layer
  • Raman lidar
  • Water vapor

ASJC Scopus subject areas

  • Water Science and Technology

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    Froidevaux, M., Higgins, C. W., Simeonov, V., Ristori, P., Pardyjak, E., Serikov, I., Calhoun, R., Bergh, H. V. D., & Parlange, M. B. (2013). A Raman lidar to measure water vapor in the atmospheric boundary layer. Advances in Water Resources, 51, 345-356. https://doi.org/10.1016/j.advwatres.2012.04.008