If you missed my posts on terrain derivatives or SAGA, you may want to jump back and read those first. Today I'm going to talk about two very common terrain derivatives and how to calculate them in SAGA. I'm going to keep going with the same DEM from Mt. Gilead State Park I used in… Continue reading Basic Terrain Analysis: SAGA
Tag: free
Intro to SAGA GIS
Last week I mentioned terrain derivatives and promised some how-to posts. I'm going to start with an brief intro to SAGA GIS, which is my preferred software for generating terrain derivatives. SAGA was written in the early 2000s and has been regularly updated-- you can learn more from its makers here. You can download SAGA… Continue reading Intro to SAGA GIS
Draw.io
Last week I posted about my usual QGIS to R workflow, and shared a little flowchart: This week I wanted to highlight the software I used to make it-- Draw.io, which is an open source version of Microsoft Visio. Visio is great, but it's expensive, so Draw.io usually makes more sense for me. Draw.io lets… Continue reading Draw.io
Project Files in RStudio
R is an excellent, if occasionally frustrating, tool. I'm assuming if you are an R user reading this post, you've already started using RStudio to improve your user experience. If not, go get RStudio here-- it color-codes your scripts, displays your objects and functions in the working environment, and has an integrated file browser. And… Continue reading Project Files in RStudio
R Cheat Sheets: ggplot2
This month I'm making lots of graphs in R and wanted to share some of the resources I use to both inspire the types of graphs I use and then actually make them. R is an incredibly powerful, free statistics software. It can be used to process large data sets, run all sorts of statistics,… Continue reading R Cheat Sheets: ggplot2
Strava
This weekend I participated in my first triathlon (see the obligatory finish line photo below)! In celebration of that accomplishment, I'm going to briefly highlight a map-related training app called Strava. Strava is available through a mobile app and a desktop platform. It creates essentially a training log of all the activities you've done and… Continue reading Strava
Free Digital Data Collection Tools
Earlier this month I shared some Esri tools (Survey123 and Collector) that work well for field data collection. Today I'm sharing some free alternatives to Esri products. Google Forms is an easy alternative to Survey123. If you go to Google Drive and click the "New" button, you'll have the option to build a new Form,… Continue reading Free Digital Data Collection Tools
