IDENTIFICATION AND GEOREFERENCING OF A LANDSLIDE IN THE COMMUNITY OF POTRERO DE ATALAYA WITH MOBILE DIGITAL TECHNOLOGY
This work was developed by means of a heuristic method in which an interactive map was generated for a natural phenomenon occurred in the community of Potrero de Atalaya. Through the use of a smartphone, we obtained a coordinate system and captured the images of the landslide, which were provided to...
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| Format: | article |
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2017
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| Online dostop: | http://revistas.utp.ac.pa/index.php/ric/article/view/360 http://ridda2.utp.ac.pa/handle/123456789/161 |
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| Izvleček: | This work was developed by means of a heuristic method in which an interactive map was generated for a natural phenomenon occurred in the community of Potrero de Atalaya. Through the use of a smartphone, we obtained a coordinate system and captured the images of the landslide, which were provided to Google® Earth™ with a description. This allowed identifying the point where the collapse occurred. We also carried out the relevant calculations using the pictures to determine parameters such as scale, area, volume, flow, declivity, and the types of rocks. It is worth to notice that, we use a planimeter and the pictures to obtain the projected area of the slipped material, and through the measuring of various heights we determine an elevation average, which finally multiply by the area to obtain the projected volume. We calculated the flow with a bottle of known volume by dividing this volume by the time average resulted from several tests. We will emphasize the main characteristics that allowed us to recognize the landslide, which was caused either by heavy rain or rock types. Among these characteristics we have: the sinking and scars on the ground, trees leaning in one direction (which is evidence that the land is moving) and terrain blocks incline against the slope of the hill, which demonstrates the presence of slides. |
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