Here's a secret from bloggers: we get a tally of how many times each page or post gets clicked on our sites. This year I've gotten a lot of readers clicking on my older SAGA articles, so it seems like a good time to share some of my favorite SAGA resources even though it's not… Continue reading SAGA Resources
Category: GIS
Degrees-Minutes-Seconds, Decimal Degrees, and Eastings and Northings
I've worked on two different multi-state fertilizer trials this year. Typically for these types of projects, collaborators from many different labs agree to all apply the same treatments, take the same measurements, and submit data to a single person to analyze and publish. I get the weirdly satisfying (and occasionally frustrating) job of formatting the… Continue reading Degrees-Minutes-Seconds, Decimal Degrees, and Eastings and Northings
Paper Size in QGIS 3 Print Layouts
I make most of my maps for publications and presentations in QGIS using the Print Layout feature. This is a wonderfully detailed tutorial if you want to learn more about print layouts. Right now I'm using the print layout to make maps of pH, organic matter, and soil test potassium to include in an update… Continue reading Paper Size in QGIS 3 Print Layouts
Project CRS
Sometimes when you're generating new layers in QGIS, you don't get the results you're expecting. This could be due to your Project CRS being in weird units or not matching the other files you're working with. I broke out the same example file as the last few posts to show you how to change your… Continue reading Project CRS
Save a File with a New CRS
Last week I posted about on-the-fly projections, which is enabled by default in QGIS. It works so well that sometimes we forget when layers are in different coordinate reference systems until we try to run a geoprocessing algorithm. Fortunately, when you inevitably run into this issue it is very easy to solve. To illustrate this… Continue reading Save a File with a New CRS
What are terrain derivatives?
Lots of people have been asking me about terrain derivatives lately, and I've been putting off blogging about them for a while because I just didn't know where to start. Instead of one master post with all the things I decided to split it into some more manageable chunks-- for both your sake and mine.… Continue reading What are terrain derivatives?
Selecting a Projection for Spatial Analysis
More map making! When you're first starting a new project and have data files in different projections, you can still view all your data together at once, using something called on-the-fly projection (a common feature of most GIS software). On-the-fly projection displays all your files using your "project CRS" and lets you have map layers… Continue reading Selecting a Projection for Spatial Analysis
Spatially Challenged 