 |
| Titel |
Relative drifts and stability of satellite and ground-based stratospheric ozone profiles at NDACC lidar stations |
| VerfasserIn |
P. J. Nair, S. Godin-Beekmann, L. Froidevaux, L. E. Flynn, J. M. Zawodny, J. M. Russell, A. Pazmino, G. Ancellet, W. Steinbrecht, H. Claude, T. Leblanc, S. McDermid, J. A. E. Gijsel, B. Johnson, A. Thomas, D. Hubert, J.-C. Lambert, H. Nakane, D. P. J. Swart |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1867-1381
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 5, no. 6 ; Nr. 5, no. 6 (2012-06-11), S.1301-1318 |
| Datensatznummer |
250002966
|
| Publikation (Nr.) |
 copernicus.org/amt-5-1301-2012.pdf |
|
|
|
|
|
| Zusammenfassung |
| The long-term evolution of stratospheric ozone at different stations
in the low and mid-latitudes is investigated. The analysis is
performed by comparing the collocated profiles of ozone lidars, at the
northern mid-latitudes (Meteorological Observatory
Hohenpeißenberg, Haute-Provence Observatory, Tsukuba and Table
Mountain Facility), tropics (Mauna Loa Observatory) and southern
mid-latitudes (Lauder), with ozonesondes and space-borne sensors
(SBUV(/2), SAGE II, HALOE, UARS MLS and Aura MLS), extracted around
the stations. Relative differences are calculated to find biases and
temporal drifts in the measurements. All measurement techniques show
their best agreement with respect to the lidar at 20–40 km, where
the differences and drifts are generally within ±5% and
±0.5% yr−1, respectively, at most stations. In addition,
the stability of the long-term ozone observations (lidar, SBUV(/2),
SAGE II and HALOE) is evaluated by the cross-comparison of each data
set. In general, all lidars and SBUV(/2) exhibit near-zero drifts and
the comparison between SAGE II and HALOE shows larger, but
insignificant drifts. The RMS of the drifts of lidar and SBUV(/2) is
0.22 and 0.27% yr−1, respectively at 20–40 km. The average
drifts of the long-term data sets, derived from various comparisons,
are less than ±0.3% yr−1 in the 20–40 km altitude
at all stations.
A combined time series of the relative differences between SAGE II,
HALOE and Aura MLS with respect to lidar data at six sites is
constructed, to obtain long-term data sets lasting up to 27 years.
The relative drifts derived from these combined data are very small,
within ±0.2% yr−1. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|