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
Author: matcham2.0
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
Global Yield Gap Atlas
I've used the Global Yield Gap Atlas for a few projects over the last couple years, and it's a great resource. GYGA measures the yield gap (difference between potential yield and achieved yield) of many crops grown in many environments, and provides downloadable data for other researchers. One tool I use from GYGA is their… Continue reading Global Yield Gap Atlas
Getting back to blogging!
Hi all! I am so sorry I took an unannounced hiatus from blogging, but I'm back and ready to share my plans for the next year of Spatially Challenged. But first, some life updates! Since I wrote to you last, I've gotten married, published two articles in Agronomy Journal, become an aunt, run my personal… Continue reading Getting back to blogging!
Choosing Chart Types
Have you ever wanted an infographic about making infographics? I found this one when looking for a succinct summary of some cool new visualization types like bubble charts and word clouds and thought it was worth sharing. Infographic from Venngage available here: https://s3.amazonaws.com/thumbnails.venngage.com/template/30a6a1a8-ecae-4479-9a46-5fe23ea0d448.png The above infographic focuses on the goals of your graphic. Do you… Continue reading Choosing Chart Types
QGIS 3 Tutorials
Apparently my late-October QGIS enthusiasm was contagious! A few friends have reached out asking how to get started with QGIS or refresh their skills after a few years away. If you're a new GIS user and are fortunate enough to be affiliated with a university, try checking out a class. I've yet to find an… Continue reading QGIS 3 Tutorials
David Rumsy Map Collection
If you're excited about maps, you have to check out the David Rumsy Map Collection. This 30 year project has amassed over 150,000 maps and has been using high-resolution scanning to digitize the collection. The digital maps are available for free non-commercial use through a Creative Common License, making this a great resource when you're… Continue reading David Rumsy Map Collection
Linked In Learning
This semester I am investing some time in refreshing my Matlab skills. Since many readers are either new to spatial analysis entirely or learning some new software themselves, I thought it might be useful for me to highlight some of the learning tools I'm using. In 2015 or thereabouts I took a full semester course… Continue reading Linked In Learning
QGIS 3 Software Update
I know I've been super behind on updating my QGIS software. I stuck to 2.18.19 for the last couple years because I don't like changing versions mid-project, but it's beyond time now. A stable release of QGIS 3 has been available since 2018, and I moved to version 3.8 a few weeks ago. The difference… Continue reading QGIS 3 Software Update
Site Pages: GIS
I've covered lots of different topics in the year+ that Spatially Challenged has been around. In order to make it a little more reader-friendly, I do keep an organized list of GIS-related blog posts on a static page. Just click the GIS button on the main menu (see below) or just click here. Not every… Continue reading Site Pages: GIS
