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Atmosphere
Special Issues
Discontinuities in Reanalysis Data
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Discontinuities in Reanalysis Data

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Upper Atmosphere".

Deadline for manuscript submissions: closed (17 October 2022) | Viewed by 1696

Special Issue Editor

Dr. Peter Krizan

E-Mail Website
Guest Editor
Institute of Atmospheric Physics, Boční II, 14131 Prague, Czech Republic
Interests: discontinuities in the ozone concentration; ozone laminae; stratospheric dynamics; the relationship between ozone and atmospheric circulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We need dense, high quality data for proper trend analyses in atmospheric science. The density of data is a crucial parameter in computing trends. The number of direct measurements of the atmospheric parameters is not sufficient, especially in the southern hemisphere, and thus we use reanalyses in the atmospheric science, which produce regular dense data that can be used in the trend analyses. The dark side of using the reanalyses in atmospheric research is the occurrence of the artificial discontinuities, which is caused by using new data or new satellites in reanalyses. The aim of this issue is the search for occurrences of artificial discontinuities in reanalyses used in atmospheric science, namely their distribution, time development, etc. Papers that concern this topic are welcome in this Special Issue.

Dr. Peter Krizan
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Atmosphere is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • discontinuities in the reanalyze
  • temporal and spatial evolution
  • spatial and temporal evolution
  • influence of artificial discontinuities to trends

Published Papers (1 paper)

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Research

15 pages, 2966 KiB  
Article
Share of Discontinuities in the Ozone Concentration Data from Three Reanalyses
by Peter Krizan, Michal Kozubek, Jan Lastovicka and Radek Lan
Atmosphere 2021, 12(11), 1508; https://doi.org/10.3390/atmos12111508 - 16 Nov 2021
Viewed by 1307
Abstract
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Discontinuities in Reanalysis Data)
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