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Spatial Analyst and Hydrology tools can be used to identify and extract dividing lines (of mountains) from an elevation raster (DEM), this by creating a network of flows by inverting … Read more
Lately many users report errors when trying to import an Excel XLS table into ArcGIS. It appears that recent updates to Windows (KB4041681, KB4041676) are generating a conflict that leads … Read more
To easily make an interactive map based on a spreadsheet, the fastest way you can opt for is Google Docs, requiring no GIS knowledge or software. Besides, it takes very … Read more
If at some point when working with ArcMap, the symbols for points, lines or polygons cannot be correctly seen. Then, there is likely to be a conflict in the use … Read more
This post tries to show the main differences between GIS and CAD, in order to guide users who have certain doubts to select one or another system. A GIS (Geographic … Read more
If it is required to display the relief or altitude of a satellite image (as shown in the Google Earth application) the first requirement is to have a digital elevation … Read more
The Windy. com page shows in real time a global wind map. The animations have a very professional detail that allows to analyze the trajectories of the winds that develop. … Read more
The official QGIS 2.18 Manual is available for download from its official website in PDF format. It is developed in 22 chapters, within which it explains clearly and concisely the … Read more
The Landsat/Sentinel images are composed of different bands, each represented by a different portion of the electromagnetic spectrum, to work with the combination of Landsat bands, first it is necessary … Read more
They are already years by which Landsat 8 online, and there is no doubt that the images are shown incredible. Little by little the bands of the previous missions of … Read more
The Landsat 8 satellite collects images of the entire Earth every 16 days. The data collected by the instruments on board the satellite are available for free download at Glovis, … Read more