CRS and Projections: How to Choose a CRS (01_13)
This lesson is called CRS and Projections: How to Choose a CRS (01_13), part of the Mapping with R course. This lesson is called CRS and Projections: How to Choose a CRS (01_13), part of the Mapping with R course.
Transcript
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Learn More
In this video I recommend using epsg.io to find appropriate CRS for your GIS datasets. Here are some additional sources of that might be useful for you:
epsg.org is an alternative “CRS search engine” maintained by the International Association of Oil & Gas Producers (IOGP). Note that searches take much longer on this site than epsg.io
Wikipedia maintains a list of national mapping agencies that might be useful for your searches
Kyle Walker has also developed an R package called crssuggest that he describes as a “small R package to help spatial analysts determine an appropriate projected coordinate reference system for their data.”
I’ve kept the information in these two videos about projections as simple as possible. If you’re interested in a more technical overview of how to choose projections I recommend this section of the Geocomputation with R book.
Have any questions? Put them below and we will help you out!
Course Content
34 Lessons
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Alexandre lustosa • February 20, 2022
Hi, Charlotte Great course, very detailed and fantastic teaching.
I have doubts about two points:
Does the st_covers() function work as a kind of join?
On the website https://projectionwizard.org/, I'm not able to view the map to select the coordinates... Need to install something?
Thanks!