UNIVERSITÉ D'ORLÉANS - Laboratoire de physique et chimie de l ...
UNIVERSITÉ D'ORLÉANS - Laboratoire de physique et chimie de l ...
UNIVERSITÉ D'ORLÉANS - Laboratoire de physique et chimie de l ...
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Altitu<strong>de</strong> (m)<br />
31000<br />
29000<br />
27000<br />
25000<br />
23000<br />
21000<br />
19000<br />
17000<br />
15000<br />
SPIRALE, 2008<br />
SPIRALE, 2005<br />
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8<br />
Altitu<strong>de</strong> (m)<br />
19000<br />
18500<br />
18000<br />
17500<br />
17000<br />
16500<br />
16000<br />
15500<br />
HCl (ppbv)<br />
CPT<br />
CPT<br />
15000<br />
0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2<br />
HCl (ppbv)<br />
SPIRALE, 2008<br />
SPIRALE, 2005<br />
Fig. 4. Vertical profiles of HCl volume mixing ratios measured in situ by SPIRALE on 22 June<br />
2005 (red line) and 9–10 June 2008 (blue line) above Teresina (5.1°S-42.9°W). Ins<strong>et</strong>: zoom on the<br />
TTL measurements with the altitu<strong>de</strong> of the cold points (CPT). The overall uncertainties are<br />
represented by horizontal error bars displayed every km b<strong>et</strong>ween 20 km and 31 km, every 400 m<br />
b<strong>et</strong>ween 20 km and the first altitu<strong>de</strong> points where HCl has been unambiguously <strong>de</strong>tected (18.6 km<br />
in 2005 and 17.7 km in 2008), and every ∼5 m below, leading to the sha<strong>de</strong>d areas representing the<br />
ranges of HCl possible values.<br />
137
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