ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2016, Vol. 13, No. 3, pp. 217-228

Suitability estimation of GSHHG coast line map for autonomous optical spacecraft navigation

E.A. Baldina 1 , R.V. Bessonov 2 , V.A. Grishin 2 , B.S. Zhukov 2 , E.G. Kharkovets 1 
1 M.V. Lomonosov Moscow State University, Moscow, Russia
2 Space Research Institute RAS, Moscow, Russia
Accepted: 28.03.2016
DOI: 10.21046/2070-7401-2016-13-3-217-228
Temporal variability of Europe and North Africa coast line and the accuracy of its spatial location in GSHHG (Global Self-consistent, Hierarchical, High-resolution Geography Database) map were analyzed for the purpose of sensor and algorithm development for autonomous optical spacecraft navigation. A map of the coast line potential long-term variability was developed based on analysis of the literature on the coast zone of the world ocean and its specific features for the study area. The GSHHG coast line accuracy was estimated by its comparison with OLI/Landsat-8 images acquired in 2013-2015 that were used as a reference. This resulted in a GSHHG accuracy map. The results allow a quantitative estimation of the GSHHG suitability for navigation purposes. It was found that only 8% of the analyzed coast line is highly variable and unsuitable for navigation, while 67% of the coast line is stable and potentially suitable. However, only 9% of the GSHHG coast line deviates from its reference location by less than 100 m, while the deviation of 34% and 40% of the GSHHG coast line is less than 200 and 500 m, respectively. This implies the necessity for a critical revision of GSHHG maps to fully utilize the potential of space-borne autonomous optical navigation using the stable coast line sections.
Keywords: coastline variability, GSHHG accuracy, autonomous optical spacecraft navigation
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