O3as: An Ozone Trend Analysis Service within EOSC-Synergy

An ozone assessment service (O3as) is being developed within the European Open Science Cloud-Synergy (EOSC-Synergy) project to produce plots of trends for ozone recovery investigations from chemistry-climate model data. EOSC-Synergy is a project that provides services designed to extend the use of the EOSC.
O3as provides access to a number of beforehand prepared chemistry-climate model projections. The projections are normalized using the SBUV Merged Ozone Data Set (MOD), with a reference year, usually 1980, to make the different model realisations comparable and to make ozone recovery estimations meaningful. This service is meant for potential use in the quadrennial Global Assessment of Ozone Depletion, which will be published in 2022.
The service is provided via a web application or directly via an O3as REST API call. In order to offer fast web access to the relevant chemistry-climate model data, the original datasets located on the KIT Large Scale Data Facility (LSDF) are reduced in-advance to the parameters of interest. This reduction process runs on a high-performance cluster (HPC) where the original data are also homogenized and standardized. ... mehr The service is open for everyone, nevertheless certain functionalities of the service may require authentication via EGI Check-In. O3as uses udocker (a tool to run Docker containers in multi-user space without root privileges) to perform data reduction in the HPC environment, and the Infrastructure Manager from Universitat Politècnica de València (UPV) to provision service resources at one of the EOSC-Synergy cloud providers.