Posts

The posts below are mostly focussed on the use of open source software in research and education. And to specificy this even further, it will likely be about the use of GIS and other analytical tools. But, I might get inspired and write about a totally different subject. I will also migrate some of the potentially useful blogposts from Ecostudies over to this site, so I can eventually shut that one down.

RStudio meets Zotero

There is certainly something to look forward to in the upcoming RStudio version 1.4. With the all new visual RMarkdown editor and integration with Zotero, you can not only run your analyses in RStudio, you can also write the report with ease.

Tree species diversity distribution

A short description how to use the r.series.diversity addon for GRASS GIS to generate maps of the tree species diversity across the contiguous USA, based on tree species distribution data by Wilson et al. 2013

Huis ter Heide

You may get depressed from all the news about the loss of our biodiversity in the Netherlands. But that doesn’t mean there aren’t still beautiful places to be found.

Adding functions to the QGIS toolbox

The graphical modeler is a great way to automate tasks, using the routines in the QGIS toolbox. However, what to do if you need a function not available in the toolbox? In that case you may want to look into writing your own script.

GISQuick

There are several ways you can publish or share your maps, created in QGIS, online. One very easy way is to use the Gisquick publishing platform. It basically requires two steps only; create a QGIS project, and upload it

Import NASA DEM in GRASS GIS

The NASADEM_HGT dataset is a 1 arcsecond void-filled dataset which combines data from the SRTM and ASTER GDEM data. It can be downloaded from EarthData in 1° by 1° tiles. But if you are using GRASS GIS, downloading is greatly fascilitated using the r.in.nasadem addon. The addon imports all NASADEM tiles covering the current region or region extents given with the region option into GRASS and patches the tiles together.

QGIS 3.14 is there

There is always this buzz that comes with new releases of QGIS. I guess this is because the development goes so quick, and each and every release brings something new and exciting.

Legend for continuous raster in QGIS composer

This blogpost shows in a few steps how to add a continuous colour legend for a raster layer in a map layout in QGIS. It is a work around, but it works.

Creating a map with inset using tmap

Plotting maps with tmap Get the libraries Main map Inset map Create the final map All the code Plotting maps with tmap Figure 1: A map of the distances to the nearest Natura2000 areas in a region in the central Oder basin.

Recording sounds

Recording bird sounds Using Audacity About the audio player Recording bird sounds I like bird watching, and I would like to improve my skills in recognizing bird sounds.