CDAT is an open source project. It is designed to allow users world-wide to contribute algorithms for others to use and explore. Contributions are placed in a user-contributed module area and if widely adopted can be integrated into the main release area. See the Download page for information on source repository access.

Currently the following packages are available in the contributions:

• asciidata: Reads data from ASCII text files
• binaryio: Read and write Fortran unformatted i/o files.
• eof: Calculates Explicit Orthonormal Functions of either one variable or two variables jointly.
• lmoments: An interface to an L-moments library by J. R. M. Hosking.
• regridpack: Interface to regridpack
• spherepack: Interface to Spherepack
• trends: Computes variance estimate taking auto-correlation into account.Documentation:
• ort: Read data from an Oort file
• grads: The grads module supplies an interface to cdms that will be familiar to users of GrADS