Spaced Out ::

GISGeography have some great “quick summaries” or quick sheets as I like to call them. They are short, focused, “explainers” usually with good use of graphics and links to other sites. Two have popped up recently with are worth a look-in:

1. GIS Programming Tutorials: covers all the main programming/scripting languages used in GIS (including R and SQL) with links to a range of websites, books and courses. Great starting point for anyone wanting to dive in.

2. Spectral Signature Cheatsheet: more specialised as it focuses upon remote sensing and spectral signatures of specific objects/surfaces using the USGS spectral library then goes on to talk about the use of the different main wavebands in satellite based remote sensing. Useful stuff.