Digital terrain mapping from multispectral and high-resolution satellite data for defense studies

Abstract

Multi spectral and high resolution satellite imageries enhancing their resolution capabilities in terms of spatial and spectral reflectance time to time such as LANDSAT, IRS, IKONOS and Digital Globe, these imageries are being used effectively and efficiently in certain applications, whereas to register spectral reflectance in different channels of electromagnetic spectrum is the principal characteristic of multi spectral satellite imageries. The real time nature of remotely sensed data can be of high value for mapping and analyzing surface features. This paper explores the broader application of remote sensing analysis for terrain mapping from multi-spectral satellite data, the accuracy of digital elevation model has been verified from various surface interpolation algorithms in which contouring and point interpolation techniques were extensively used. The study reveals that digital interpretation has become more sharpened on a large scale and terrain mapping with high and multi-spectral satellite data along with GPS Mobile Mapper can be done for any region, on some extent this research work has confirmed that sensor on a satellite can navigate army movements.