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| Titel |
0.355-micrometer direct detection wind lidar under testing during a field campaign in consideration of ESA's ADM-Aeolus mission |
| VerfasserIn |
S. Lolli, A. Delaval, C. Loth, A. Garnier, P. H. Flamant |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 6, no. 12 ; Nr. 6, no. 12 (2013-12-09), S.3349-3358 |
| Datensatznummer |
250085124
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| Publikation (Nr.) |
 copernicus.org/amt-6-3349-2013.pdf |
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| Zusammenfassung |
| The atmospheric wind field information is a key issue to numerical weather
prediction (NWP) and climate studies. The Atmospheric Dynamic Mission-Aeolus
is currently developed by the European Space Agency (ESA) to launch a wind
sensing Doppler lidar in mid-2015. The high spectral resolution
lidar concept is using backscattered laser signals from molecules and
particles to provide accurate horizontal wind velocity measurements in the
depth of atmosphere. The Aeolus lidar, so-called ALADIN, will operate in UV at
0.355 μm. The combination of air molecules and UV laser light is
intended to provide wind data evenly distributed everywhere in the lower
atmosphere (below 30 km altitude). The goal of the ESA's Aeolus mission is
to enhance the present meteorological observations system over sparse wind
data regions, and more importantly to provide direct wind information in the
tropics where no geostrophic wind can be derived from mass fields obtained
from passive radiometer satellite. The 0.355 μm lidar concept was
under testing during a field campaign conducted at the Haute-Provence
Observatory, France, in 1999. Several active remote sensors were deployed on
the site, and it was the opportunity to address the self-consistency of wind
measurements made by different lidars, a 72 MHz radar, and conventional
balloon radio soundings. The paper presents the comparison of different
remote sensors using two criteria: Pearson cross-correlation coefficient and
root mean square error. The methodology discussed here may be useful in
future ESA Aeolus validation campaigns involving different kinds of instruments. |
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