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      Estimate of the Arctic Convective Boundary Layer Height from Lidar Observations: A Case Study

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      General Information:

      Citation:
      Di Liberto, L. , Angelini, F. , Pietroni, I. , Cairo, F. , Di Donfrancesco, G. , Viola, A. , Argentini, S. , Fierli, F. , Gobbi, G. P. , Maturilli, M. , Neuber, R. and Snels, M. (2012): Estimate of the Arctic Convective Boundary Layer Height from Lidar Observations: A Case Study , Advances in Meteorology, 2012 , pp. 1-9 . doi: 10.1155/2012/851927
      Cite this page as:
      hdl:10013/epic.39184
      DOI:
      https://doi.org/10.1155/2012/851927
      Official URL:
      http://www.hindawi.com/journals/amet/2012/851927/
      Contact Email:
      Marion.Maturilli@awi.de
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      Cite this document as:
      hdl:10013/epic.39184.d001
      Abstract:

      A new automated small size lidar system (microlidar or MULID) has been developed and employed to perform aerosol measurements since March 2010 at Ny Ålesund (78.9°N, 11.9°E), Svalbard. The lidar observations have been used to estimate the PBL height by using the gradient method based on abrupt changes in the vertical aerosol profile and monitor its temporal evolution. The scope of the present study is to compare several approaches to estimate the PBL height, by using lidar observations, meteorological measurements by radio soundings, and a zero-order one-dimensional model based on a parameterization of the turbulent kinetic energy budget within the mixing layer, under the assumptions of horizontal homogeneity, and neglecting radiation and latent heat effects. A case study is presented here for a convective PBL, observed in June 2010 in order to verify whether the Gradient Method can be applied to lidar measurements in the Arctic region to obtain the PBL height. The results obtained are in good agreement with the PBL height estimated by the analysis of thermodynamic measurements obtained from radio sounding and with the model.

      Further Details:

      Item Type:
      Article
      Authors:
      Di Liberto, Luca ; Angelini, Federico ; Pietroni, Ilaria ; Cairo, Francesco ; Di Donfrancesco, Guido ; Viola, Angelo ; Argentini, Stefania ; Fierli, Federico ; Gobbi, Gian Paolo ; Maturilli, Marion ; Neuber, Roland ; Snels, Marcel
      Divisions:
      AWI Organizations > Climate Sciences > Atmospheric Circulations
      Programs:
      Helmholtz Research Programs > PACES I (2009-2013) > TOPIC 1: The Changing Arctic and Antarctic > WP 1.2: Aerosol, Water Vapour, and Ozone Feedbacks in the Arctic Climate System
      Eprint ID:
      30235
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