TY - JOUR
T1 - A Raman lidar at la Reunion (20.8° S, 55.5° E) for monitoring water vapour and cirrus distributions in the subtropical upper troposphere
T2 - Preliminary analyses and description of a future system
AU - Hoareau, C.
AU - Keckhut, P.
AU - Baray, J. L.
AU - Robert, L.
AU - Courcoux, Y.
AU - Porteneuve, J.
AU - Vömel, H.
AU - Morel, B.
PY - 2012
Y1 - 2012
N2 - A ground-based Rayleigh lidar has provided continuous observations of tropospheric water vapour profiles and cirrus cloud using a preliminary Raman channels setup on an existing Rayleigh lidar above La Reunion over the period 2002-2005. With this instrument, we performed a first measurement campaign of 350 independent water vapour profiles. A statistical study of the distribution of water vapour profiles is presented and some investigations concerning the calibration are discussed. Analysis regarding the cirrus clouds is presented and a classification has been performed showing 3 distinct classes. Based on these results, the characteristics and the design of a future lidar system, to be implemented at the new Reunion Island altitude observatory (2200 m) for long-term monitoring, is presented and numerical simulations of system performance have been realised to compare both instruments.
AB - A ground-based Rayleigh lidar has provided continuous observations of tropospheric water vapour profiles and cirrus cloud using a preliminary Raman channels setup on an existing Rayleigh lidar above La Reunion over the period 2002-2005. With this instrument, we performed a first measurement campaign of 350 independent water vapour profiles. A statistical study of the distribution of water vapour profiles is presented and some investigations concerning the calibration are discussed. Analysis regarding the cirrus clouds is presented and a classification has been performed showing 3 distinct classes. Based on these results, the characteristics and the design of a future lidar system, to be implemented at the new Reunion Island altitude observatory (2200 m) for long-term monitoring, is presented and numerical simulations of system performance have been realised to compare both instruments.
UR - https://www.scopus.com/pages/publications/84862521032
U2 - 10.5194/amt-5-1333-2012
DO - 10.5194/amt-5-1333-2012
M3 - Article
AN - SCOPUS:84862521032
SN - 1867-1381
VL - 5
SP - 1333
EP - 1348
JO - Atmospheric Measurement Techniques
JF - Atmospheric Measurement Techniques
IS - 6
ER -