Open Courseware for GIS
MATLAB Tutorial for Beginners
FORTRAN Tutorial for Beginners
Python Basic Syntax
R Tutorial for Beginners
QGIS Tutorials
ArcGIS Tutorials
Basic of LINUX
An Introduction to Spatial Data Analysis and Visualisation in R
Install Climate Data Operator (CDO) with NetCDF, GRIB2 and HDF5 support
Tutorial for Pandas Library also see the 10 Minutes to Pandas Library
Scipy Lecture Notes
Graphs in R
Python resources for Hydrologists
Climate Change Scenarios
The Beginner’s Guide to Representative Concentration Pathways