D3 Geodata Basics – A Map Overlay can have many Faces
Within that tutorial I will show you how to: add a geoJSON file using pure Leaflet open a geoJSON file with D3 open a TopoJSON file with D3…
D3 Mapping Basics
Within this, 2nd basic D3 tutorial, I will show you how to combine D3 with Leaflet whereby each library can demonstrate its vantages! These will be the main…
PRISM and TEMPORA: Greg’s cable map shows worldwide undersea communication infrastructure
In these days PRISM and TEMPORA are the keywords in global media. United States and Great Britain are two of the (western) global-players which are monitoring global communication…
D3-Basics – All you need is a selection!
Since a while I am programming with the JavaScript library D3.js … and … I am addicted to it! As I would like to present some tutorials on…
geoJSON with QGIS and leaflet: from data to map
The new JSON Format GeoJSON allows you to easily embed geographical features in your leaflet webmap. Additionally you can create it very easily in the open source GIS…
Soil Datasets an Soil Atlas of Europe and Africa
The joint research centre of the European Commission has published a soil atlas of Europe and Africa. Downloadable as PDF-Parts, they contain informations about the natural soil resources.
short announce: the new google maps – a comparison
The new google maps is now in sort of a Beta and availbale on invitation. Let me share some of the new features with you: As you can…
Rainfall and weather data on GoogleEarth
On Saturday, some villages near my hometown suffered heavy rains. Up to 100 l/m² arrived during the afternoon and evening in Kirchhasel and other places in central Thuringia.…
short announcement: Earth Engine by Google
On the 9th of May Google introduced an astonishing new technology that makes the good old flickr function in Erdas Imagine quite useless. With the Earth Engine from…
Youtube trends map: play Big Brother in the US
As I have seen today on engadget Youtube presents now a new Trend Map where you can see what viewers in the US like to see on Youtube.…
How to find geospatial data for Spain
In some countries, such as the USA and Spain, there is a very nice law that makes life easy for geoscientists. This law guarantees free access to a…
Digital Geomorphology
Maps are still the main technique to show geomorphological surfaces on different spatial scales. Step by step new technologies try to improve this approach. In this german article…