Barkmann, Henrike

Risch, Daniel

Stönner, Sven

Tegler, Mirco

Voinov, Galina

Wegner, Max

Institute of Transport Research:Publications

Ionosphere Monitoring and Prediction CenterBackgroundThe IMPC - evolved from the predecessor projects SWIPPA (Space Weather Impact on Precise Positioning Applications of GNSS) andSWACI (Space Weather Application Center - Ionosphere) - processes more than 50 gigabytes of ionosphere-related data daily, generating2888 ROTI products and 288 TEC products as well as 1588 other products for GNSS users. This flexibly extensible and building blockplatform for data processing, archiving and delivery relies on the use of standards such as OCI (for container applications), BPMN(Business Process Model and Notation) and ESA IPF and is oriented towards the latest methods of data processing and orchestration. Bothnear-real-time product delivery and secure long-term archiving are applied here. The IMPC can be used and adapted for various projectsin the field of space weather and thus currently offers, among other things, within the framework of the ESA Space Safety Programme(https://swe.ssa.esa.int/), as well as the ICAO PECASUS project (https://pecasus.eu/), as one of the four ICAO global space weathercenters, and for the continuous provision of ionospheric products, which are being developed by the Institute for Solar-Terrestrial Physicsin Neustrelitz.IMPC as a processing platform The development and continuous operation of efficient infrastructures basedon excellent research, established standards and modern open source dataprocessing and container technologies is the basic prerequisite for theoperation of highly available and value-adding space weather services. Thisallows a wide range of products to be computed and delivered on time withvery high cadence and very low latency, and ultimately to support internaland global research activities in space weather science and relatedapplications.The IMPC as a platform for automated processing of ionospheric products with a 24/7 near real-time basis.The IMPC needs around 1 minute processing time per product includingarchiving and delivery time. Approximately 4700 products are created daily.The platform gets data from NTRIP streams or single files and uses a 3 stepprocessing environment from development over test zone to the operationalworld. The operational service is accompanied by the IMPC User Help Desk(impc-uhd@dlr.de) for technical, functional or thematic issues and requestsfrom registered users, project partner or any ionospheric weather interestedpersons. Furthermore it is monitored by an automatic system. The IMPCplatform provides three different ways for data distribution to users, projectsand networks. The first and easiest way is data presentation via the IMPCwebsite (https://impc.dlr.de/) with near real-time products. The second way isthe data delivery directly to projects and users via sftp or other individuallydefined ways. The third data distribution approach is currently underdevelopment and will give users an opportunity to retrieve customized datapackages from the IMPC product data archive.Website and UMSProcessing and ArchivingThe IMPC processing system is in a state of transition. Established processingchains have been integrated by using components from the Data andInformation Management System (DIMS). This is a functionally as well asgeographically distributed system that offers standardized interfaces foraccess management, production management and long-term archiving.Upcoming processing chains will be implemented by using container for astandardization, the Workflow Management Platform (WMP) and theBusiness Process Model and Notation (BPMN) for defining the workflows.Our partner for the development of DIMS and WMP is WERUM(https://www.werum.de/).DLR's German Satellite Data Archive (D-SDA) in Neustrelitz andOberpfaffenhofen is one of the most modern long-term archives in theworld. It serves to archive all of the Earth Observation Center's remotesensing data and products in both the short- and long-term, as well asproviding access for users. Long-term archiving is used to ensure sustainableavailability and usability of Earth observation data. The D-SDA currently iscontaining app. 135 million files and 25 Pbyte of data.Henrike Barkmann, Galina Voinov, Daniel Risch, Sven Stönner, Max Wegner and Mirco Tegler 1 on behalf of the IMPC team1,2 1 DLR Earth Observation Center, Neustrelitz, Germany2 DLR Institute for Solar-Terrestrial Physics, Neustrelitz, GermanyContact: impc-uhd@dlr.deDLR has more then 20 years ofexperience with the SAM-FS in 365days/24 hours operations with~47.000 product transfers per day.For IMPC data and products thepermanent archiving is an importantcomponent without time limitation,fast data delivery to users and a highavailability.The IMPC website(https://impc.dlr.de/) offersinformation about theIMPC background andabout the current state ofthe ionosphere, relatedforecasts and warnings. Itoffers also graphs and datafrom current near real-timeproducts.The development and operation of the IMPC web server environment is alsoprotected through the use of three levels of development (development –test & integration - production). For the convenient operation of the websitesecurity and its different versions, containerization is implemented. Thusroot rights on the server are not required and network communicationbetween the containers is possible.The EOC User Management System IMPC connection. Great importance is attached to standardization by using a uniform format for all components (containers)and to facilitate deployments, interchangeability and upgrades. Also decoupling of all components fromthe actual runtime environment (executable in all compatible container runtime environments) has anextremely high priority.DLR's German Satellite Data Archive (D-SDA) – the archive for all of the Earth Observation Center's remotesensing data and products in both the short- and long-term.For the IMPC user management the EOC UMS (User Management System) isused. Connection to the EOC UMS enables Single Sign-On (SSO) withcentralized user and group management. The system is compliant with theGerman Satellite Data Security Act (SatDSiG) and has a well-establishedscience user support. The IMPC website is compliant to the General DataProtection Regulation (GDPR).

Ionosphere Monitoring and Prediction Center

https://elib.dlr.de/200342/1/ESWW2023_final.pdf

Ionosphere Monitoring and Prediction Center

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