 |
| Titel |
Round-robin evaluation of nadir ozone profile retrievals: methodology and application to MetOp-A GOME-2 |
| VerfasserIn |
A. Keppens, J.-C. Lambert, J. Granville, G. Miles, R. Siddans, J. C. A. van Peet, R. J. van der A, D. Hubert, T. Verhoelst, A. Delcloo, S. Godin-Beekmann, R. Kivi, R. Stübi, C. Zehner |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1867-1381
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 8, no. 5 ; Nr. 8, no. 5 (2015-05-20), S.2093-2120 |
| Datensatznummer |
250116363
|
| Publikation (Nr.) |
 copernicus.org/amt-8-2093-2015.pdf |
|
|
|
|
|
| Zusammenfassung |
| A methodology for the round-robin evaluation and the geophysical validation of
ozone profile data retrieved from nadir UV backscatter satellite
measurements is detailed and discussed, consisting of data set content
studies, information content studies, co-location studies, and comparisons
with reference measurements. Within the European Space Agency's Climate
Change Initiative on ozone (Ozone_cci project), the proposed
round-robin procedure is applied to two nadir ozone profile data sets
retrieved at the Royal Netherlands Meteorological Institute (KNMI) and the
Rutherford Appleton Laboratory (RAL, United Kingdom), using their respective
OPERA v1.26 and RAL v2.1 optimal estimation algorithms, from MetOp-A GOME-2
(i.e. the second generation Global Ozone Monitoring Experiment on the first
Meteorological Operational Satellite) measurements taken in 2008. The
ground-based comparisons use ozonesonde and lidar profiles as reference
data, acquired by the Network for the Detection of Atmospheric Composition
Change (NDACC), Southern Hemisphere Additional Ozonesonde programme
(SHADOZ), and other stations of the World Meteorological Organisation's
Global Atmosphere Watch (WMO GAW). This direct illustration highlights
practical issues that inevitably emerge from discrepancies in e.g. profile
representation and vertical smoothing, for which different recipes are
investigated and discussed. Several approaches for information content
quantification, vertical resolution estimation, and reference profile
resampling are compared and applied as well. The paper concludes with
compliance estimates of the two GOME-2 ozone profile data sets with user
requirements from the Global Climate Observing System (GCOS) and from
climate modellers. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|