Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2020, Vol. 17, No. 5, pp. 79-90
The maintaining technologies of the basic products bank based on Earth remote sensing data for the tasks of the Russian Federation digital economy
A.N. Markov
1 , A.N. Vasilyev
1 , N.A. Olshevskiy
1 , A.V. Krylov
1 , B.B. Salimonov
1 , P.A. Sinyaev
1 , R.A. Mikhalenkov
1 , E.V. Volkova
1 1 AO Russian Space Systems, Research Center for Earth Operative Monitoring, Moscow, Russia
Accepted: 18.09.2020
DOI: 10.21046/2070-7401-2020-17-5-79-90
In the framework of the Digital Economy national program, Roscosmos State Corporation implements the Digital Earth project, the purpose of which is to create the Digital Earth information system (digital platform) to provide consumers with access to a single seamless multilayer dynamic coverage (ESMDP) and related thematic services. Herewith, the ESMDP is defined as the multi-level hierarchical Earth remote sensing information products set including metadata and standard processing products, ordered by criteria, as well as the seamless continuous coverage (BSP) over the various regions of Russia updated according to the regulations. The paper analyzes technologies that maintain the Bank of Basic Products geo-information custom-developed service (BBP) developed by order of Roscosmos State Corporation to ensure formation and provision for seamless continuous coverages from ESMDP. The object model of BBP catalog based on ISO 19115 is presented here. The object model maintains archives of the standard and basic thematic products, the seamless continuous coverages that are formed on their bases, as well as hierarchical relations between the products. A model of technological process control implemented in the form of a distributed software framework, including the web service for maintaining status models of processes, is considered as well as daemon programs deployed on the computational nodes to support the implementation of technological process applications. The technological model of the seamless continuous coverage formation process, taking into account verification, is represented as well as an approach of BSP data providing to customers: online access to the “tiled” coverage (in accordance with the XYZ-protocol) and asynchronous access (through order registration) to full sized BSP data. The paper shows examples of BSP over the various regions of the Russian Federation based on the data obtained from domestic orbital Earth remote sensing satellites using the technologies considered. Finally, the compliance of the BBP technologies with target and functional requirements of the Digital Earth platform is demonstrated.
Keywords: digital economy, Earth remote sensing, digital Earth, digital platform, basic products bank, seamless mosaic
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