Catchment delineation with QGIS
Very often catchment delineations are required for several processes in hydrological analysis. The GIS offers a lot of flexible tools in order to derive these products, using as main input … Read more
Very often catchment delineations are required for several processes in hydrological analysis. The GIS offers a lot of flexible tools in order to derive these products, using as main input … Read more
The information which can be derived from Elevation data have a lot of applications in different fields of the science, from hydrology, risk analysis, urban planning among others. In this … Read more
Global Mapper can easily obtain geographic information from different sources, in a simple way. To create contour lines anywhere in the world, you must first review the metadata. In this … Read more
I did not expect that making a decent graph of an elevation profile could be a hard task. I tried to make it in ArcMap, but it did not meet … Read more
Merge two or more raster from a set of images in ArcGIS, is a very simple and very useful process when you need to merge multiple digital elevation models or … Read more
Knowing the volume of a mountain, hill, volcano or any kind of elevation, the principle is based on finding the difference of two digital elevation models, the first with the … Read more
Fundamentals of Remote Sensing Tutorial, is available for free by The Canada Centre for Mapping and Earth Observation (formerly Canada Centre for Remote Sensing). The tutorial is structured as a … Read more
Once completed the hard work involved in making a map, beautiful presentation is how to add value, for more visual appeal to those who qualify our work, especially in geological … Read more
For automatically define a watershed, it is necessary to properly define their boundaries, considering upstream from an outlet point, and are usually demarcated by mountain ridges. A good advantage is … Read more