 |
| Titel |
Retrieval of temperature, H2O, O3, HNO3, CH4, N2O, ClONO2 and ClO from MIPAS reduced resolution nominal mode limb emission measurements |
| VerfasserIn |
T. Clarmann, M. Höpfner, S. Kellmann, A. Linden, S. Chauhan, B. Funke, U. Grabowski, N. Glatthor, M. Kiefer, T. Schieferdecker, G. P. Stiller, S. Versick |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1867-1381
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 2, no. 1 ; Nr. 2, no. 1 (2009-05-12), S.159-175 |
| Datensatznummer |
250000435
|
| Publikation (Nr.) |
 copernicus.org/amt-2-159-2009.pdf |
|
|
|
|
|
| Zusammenfassung |
| Retrievals of temperature, H2O, O3, HNO3, CH4, N2O, ClONO2
and ClO from MIPAS reduced spectral resolution nominal mode limb emission
measurements outperform retrievals from respective full spectral resolution
measurements both in terms of altitude resolution and precision. The estimated
precision (including measurement noise and propagation of uncertain parameters
randomly varying in the time domain) and altitude resolution are typically
0.5–1.4 K and 2–3.5 km for temperature between 10 and 50 km altitude,
and 5–6%, 2–4 km for H2O below 30 km altitude,
4–5%, 2.5–4.5 km for O3 between 15 and 40 km altitude,
3–8%, 3–5 km for HNO3 between 10 and 35 km altitude,
5–8%, 2–3 km for CH4 between 15 and 35 km altitude,
5–10%, 3 km for N2O between 15 and 35 km altitude,
8–14%, 2.5–9 km for ClONO2 below 40 km, and
larger than 35%, 3–7 km for ClO in the lower stratosphere. As for the full
spectral resolution measurements, the reduced spectral resolution nominal mode
horizontal sampling (410 km) is coarser than the horizontal smoothing (often
below 400 km), depending on species, altitude and number of tangent altitudes
actually used for the retrieval. Thus, aliasing might be an issue even in the
along-track domain. In order to prevent failure of convergence, it was found to
be essential to consider horizontal temperature gradients during the retrieval. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|