Projects

Welcome at the project page. Here you find a number of old and current projects. The former are kept for legacy reasons (keeping information and data available for download). You can filter the projects by subject in the blue bar below, or you can use the search function (in the top menu bar).

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Sounds from nature

I like bird watching, and I would like to improve my skills in recognizing bird sounds, by recording bird sounds. Below some recordings of birds I often hear in the region I live.

Open source tools

Programs like R and GRASS GIS are incredible powerfull. But occasionally you’ll need a functionality that is not available yet. Luckily, depending on the kind of functionality, it isn’t terribly difficult to create your own scripts. In the past years I have created a few scripts that I hope are useful to others as well.

Writing about open source

Throughout the years I have used a wide range of open source GIS, database and statistical software both for personal and professional use. In order not to forget newly learned techniques or tricks I try to jot down some notes whenever I have learned something new. And occassionally, I write them down on my blog, in the hope that they come in handy one day for somebody else.

Data analysis and exploration

Agricultural research, development projects, conservation prioritization; it all has a spatial component. In geographic information system (GIS) analysis, a crucial step is to link knowledge to location.

OSGeo.nl

Website of the OSGeo.nl foundation.

Vegetationmap 4 Africa

Information portal to support conservation, vegetation restoration and agroforestry

Potential Natural Vegetation for south-western and central Kenya

An atlas of the natural vegetation of southwest Kenya. Adapting old vegetation maps into easy-to-use decision support tools to help identify the best indigenous trees to grow on farms.