Remotely sensed data has become an important source for geoscientists to understand the earth. With the rapidly growing availability of remotely sensed data and field surveys, there is an urgent demand to interpret and analyze these data. Remote sensing is a promising technology to support geohydrological studies, mainly because of the potential to observe areas and entire river basins rather t...

Introduction: Tectonic features on Callisto are found (1) preferentially in large multi-ring structures, or (2) in several areas in its dark, cratered plains units outside the large multi-ring structures [1, 2]. In this latter case, tectonism is represented by fractures, scarps, and albedo lineaments. In this paper, we will mainly concentrate on tectonic features outside the large multi-ring st...

landscape that has escaped erasure by heating from below is imprinted with generation after generation of intersecting Four distinct classes of lineaments can be described on the ridges at various scales and orientations. Relatively recent fracbasis of Galileo’s improved spectral and spatial coverage of tures expose coarse-grained, clean ice in the shallow subsurface, Europa: (1) incipient crac...

This work introduces a new approach for modification of adaptive Lee algorithm for semautomatically detects geological features from RADARSAT-1 SAR data. This is based on modification of Lee algorithm formula by using 2D Gaussian convolution formula. The result shows that the new formula of Lee algorithm can be delineated lineament features in RADARSAT-1 SAR data. The new formula based on 2D Ga...

The Hoang Sa islands, located in the northern part of East Vietnam Sea, lack information on geological structural boundaries. gravity data from global marine model were analyzed using enhanced total horizontal gradient methods to delineate structures that appear as lineaments transformed anomaly maps area. Before applying techniques their effectiveness was demonstrated by comparing them with re...