GIS

Yesterday we scanned a 4.5 hectare piece of land at Overgaauw Wine Estate in Stellenbosch with an electromagnetic soil scanner. The scanner is owned by a dynamic new company called Revolute [...]

Early last year I was confronted with an unusual request from one of my clients. While discussing a NDVI image, I realized that we were not on the same page… Turns out he is red-green [...]

Soo, couldn’t find any modern (newish) relief maps of the Western Cape. So here is a new one:

Yesterday I had a conversation with a GIS and Soil Scientist who showed me an article where the work he had done was blatantly showcased by a local winemaker as his own, only to find out that I [...]

Trolling the internet for months now, I’ve come across a few excellent GIS portal sites to help with precision viticulture. I rejoice in the fact that some governments have an open policy [...]

As a novice in GIS I struggled to figure out how to display the Landsat8 data downloaded from Earth Explorer. I searched the internet but all the tutorials or guides are useless to someone who [...]

Okay, so once we compiled the elevation model, we can create a Solar Radiation model. (I usually make it for the 15th February – the middle of harvest) When I look at individual farms, I usually [...]

So when I look at vineyards or potential vineyard sites, I ask myself – what kind of wine would I want from this site? Yes markets mostly dictate what a farmer plants, but with wine, plant the [...]

So after my long absence in actually writing something, here we go with the first part on Solar Radiation as a GIS tool to use in decision making as a viticulturist. Solar Radiation First off, [...]

The next terrain model I will briefly discuss is the Slope model. Slope (inclination of the land from the horizontal) can either be expressed in degrees or in percentage. I prefer to use degree, [...]