Geographic Information Systems

Questions tagged [water]

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Looking for a source for detailed Water Shapefiles [closed]

Is there somewhere where I can find detailed vector water shapefiles which I can import into QGIS? I am currently looking at the moment for waterways around the United States however I would like to ...
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Checking if network has connection errors

I have given a network of a city in dwg. I made a dxf that only contains the network itself, and created a layer for every type of pipe (like 25KPE, 80KPE etc...). How do I check if the network is ...
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ArcGIS Pro Arcade expression to Maintain line-to-point connectivity

A customer was using a geometric network to maintain connectivity between lines and points. Now they are using ArcGIS Pro, which does not support geometric networks. They cannot use the Utility ...
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59 views

Calculating water occurrence of Sentinel-1 images in Google Earth Engine

I would like to derive the occurrence of surface water bodies from Sentinel-1 image collection in the Google Earth Engine.In my example I could already compute the water mask using Otsu’s method for ...
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Scale national economic data down to a watershed

Economic Input Output databases such as e.g. the World Input-Output Database by the European Commission contain economic (and often environmental) statistics. The spatial resolution of data provided ...
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Creating a “Stream Order” of canal system using ArcMap

I'm interested in creating a "Stream Order" for our canal system. I am the GIS Specialist for an irrigation district. I would like to have the ability to have a layer for when I click on a section of ...
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73 views

SVG symbols for water management

I'm searching for SVG of different (german) hydrant types ("Unterflurhydrant", "Überflurhydrant", "Hydrantenschacht") etc. The symbols are currently stored as polygons in MapInfo's proprietary .TAB (...
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138 views

Extract data from osm.pbf with GDAL

I tried osmosis, osm2pgsql, osmfilter, and probably most of OSM related tools in order to extract polygon rivers and water bodies. Among the tools, OGR is intuitive and returns good results so far ...