110 research outputs found

    Advances in Free Software Geographic Information Systems 

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    ABSTRACT: This paper reports on recent advances in FOSS4G (Free and Open Source Software for Geoinformatics). Features of the new GRASS 6.2.0 release, a major software package among the FOSS4G product family, are summarised in this paper. The new capabilities of GRASS 6 include a new engine for spatial vector data processing as well as an improved user interface with internationalisation efforts and multi-byte font support. Spatial data are crucial for national and local development planning, disaster management and early warning, and environmental monitoring. Compared to other IT sectors

    O odnosu seizmičnosti i tektonskih svojstava Idukki regije u jugoistočnoj Indiji

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    The detailed investigations of the lineament and seismicity data of Idukki area have been carried out in connection with the location of June 7, 1988 earthquake and its associated significant aftershocks. The analysis of lineament data has indicated three major lineaments namely Idamalayar, Periyar and Kambam which have influenced the entire lineament fabric of the Idukki area. The study has indicated that the June 7, 1988 earthquake was associated with Periyar lineament in Nedumkandam area which has been found to be located at a distance of 22 km off Idukki. It has been observed that the isoseismals pertaining to maximum intensity VI MM and above show unidirectional elongation in WNW-ESE while lower intensity isoseismals have bi-directional elongation in WNW-ESE and NE-SW. The Periyar lineament trending WNW-ESE and NE-SW trending Kambam lineament have served as conduits for the propagation of seismic energy over long distances since its transmission is more efficient along rupture zones than in the transverse direction
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