Počet záznamů: 1
Share of Discontinuities in the Ozone Concentration Data from Three Reanalyses
- 1.
SYSNO ASEP 0548518 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Share of Discontinuities in the Ozone Concentration Data from Three Reanalyses Tvůrce(i) Križan, Peter (UFA-U) RID, ORCID
Kozubek, Michal (UFA-U) RID, ORCID
Laštovička, Jan (UFA-U) RID, ORCID
Lán, Radek (UFA-U) RID, ORCIDCelkový počet autorů 4 Číslo článku 1508 Zdroj.dok. Atmosphere. - : MDPI
Roč. 12, č. 11 (2021)Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova discontinuity in ozone concentration data ; trend analysis ; data quality Vědní obor RIV DG - Vědy o atmosféře, meteorologie Obor OECD Meteorology and atmospheric sciences CEP GA21-03295S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFA-U - RVO:68378289 UT WOS 000726917900001 EID SCOPUS 85119891247 DOI 10.3390/atmos12111508 Anotace Ozone is a very important trace gas in the stratosphere and, thus, we need to know its time evolution over the globe. However, ground-based measurements are rare, especially in the Southern Hemisphere, and while satellite observations provide broader spatial coverage generally, they are not available everywhere. On the other hand, reanalysis data have regular spatial and temporal structure, which is beneficial for trend analysis, but temporal discontinuities might exist in the data. These discontinuities may influence the results of trend studies. The aim of this paper is to detect discontinuities in ozone data of the following reanalyses: MERRA-2, ERA-5 and JRA-55 with the help of the Pettitt, the Buishand, and the Standard Normal Homogeneity tests above the 500 hPa level. The share of discontinuities varies from 30% to 70% and they are strongly layer dependent. The share of discontinuities is the lowest for JRA-55. Differences between reanalyses were found to be larger than differences between homogeneity tests within one reanalysis. Another aim of this paper is to test the ability of homogeneity tests to detect the discontinuities in 2004 and 2015, when changes in versions of satellite data took place. We showed the discontinuities in 2004 are better detected than those in 2015. Pracoviště Ústav fyziky atmosféry Kontakt Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Rok sběru 2022 Elektronická adresa https://www.mdpi.com/2073-4433/12/11/1508
Počet záznamů: 1