Impact of India’s new map policy on accuracy of GIS theme

Autor:	Abhishek Dubey, Jayanta Kumar Ghosh
Rok vydání:	2009
Předmět:	Geography Planning and Development Geodetic datum computer.software_genre Ellipsoid Geography Transformation (function) Earth and Planetary Sciences (miscellaneous) Polyconic projection Data mining Scale (map) Map projection Projection (set theory) Theme (computing) computer Cartography
Zdroj:	Journal of the Indian Society of Remote Sensing. 37:215-221
ISSN:	0974-3006 0255-660X
DOI:	10.1007/s12524-009-0020-z
Popis:	With the declaration of India’s new map policy (NMP), user community is looking towards its impact on spatial accuracy of GIS theme maps arising out of transformation from existing system (Polyconic Projection on Everest 1830 spheroid datum) to Open series maps (OSM in UTM projection on WGS 84 ellipsoid) and vice versa. This results in registration error of existing maps with new maps. This study aims at finding out the impact of transformation on the spatial location and to determine the extent to which the existing theme layers can be used along with the new series maps without losing accuracy. Results show that there are some geographic regions in India whose GIS database can be used as it is available, depending on the scale and within the acceptable positional accuracy. For other region, depending on the scale of theme layers, a detail analysis of the situation will be required depending on project requirements.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4445cb7a9dbc756d9fb7c3310a9dafe0 https://doi.org/10.1007/s12524-009-0020-z Zobrazit plný text záznamu Full text from SpringerLink