Some ways to produce topographic swath profiles
For a geomorphological study that I am working on I want to produce topographic swath profiles across a mountain range, that is, I want the average elevation along…
Tag: Tutorial
Geocoding in GIS: ArcGIS, QGIS, Leaflet
The recent move from the Mongolian Post to use W3W as their new address system shed a new light on the question: Where are addresses located and how…
PostgreSQL and PostGIS: A brief introduction
You probably seen this already (maybe on your very own PC as well): A folder with shape files. Well we’re living in the 21st century and I do…
Accessing Landsat and Sentinel-2 on Amazon Web services
The cloud has made it easier to process large amount of data, and satellite imagery processing benefits from cloud processing too. One of the cloud services that offers…
Filter Leaflet Maps with a Slider
If you create maps you always need to ask yourself: how can I make it as easy as possible to read and still have anything I need in…
How to create mountain ranges in QGIS?
Last time we had the task to create mountain ranges polygons for the whole world. I prepared a small tutorial referred to that. Maybe you can find something…
Downloading Sentinel satellite imagery
Sentinel is the buzzword for a series of Earth observation missions like Sentinel-1 (Land and Ocean monitoring,launched in April 2014), Sentinel-2 (land monitoring, launched in June 2015) and…
What is better: a map or a picture?
I was reading an article entitled “China, the megalopolis of 110 million inhabitants that impresses the world” on a popular online journal (see article) and after a dozen…
Routing in QGIS… with OSM
Routing with Google is quite cool as the database/network is probably the best currently available. But the terms of services limit the possible usage. So what about OpenStreetMap?…
Routing in QGIS … with Google
Routing in QGIS was, as far as I know, always dependent on an available network. Either you had some database which was pgrouting enabled, or you had some…
CSV to SHP with Python
Python is a well established script language in the GIS/geodata world. And as a Facebook friend asked how to read csvs with Python I thought about “How to…
D3: My First Webmap
I always watched those stunning examples created with D3 by Mike Bostock, I liked Ralf’s blog posts here and I always thought to myself: get yourself together and…